Class / Patent application number | Description | Number of patent applications / Date published |
348188000 | Using test chart | 47 |
20100020180 | ALIGNMENT METROLOGY AND RESOLUTION MEASUREMENT SYSTEM FOR IMAGING ARRAYS - An alignment metrology and resolution measurement system concurrently determines the alignment of an imaging array in six degrees of freedom relative to an external reference frame, and further determines the resolution of the imaging array. To achieve this, an image of at least three mask patterns is projected on the imaging array. First and second positions of the imaging array relative to first and second coordinate axis of the reference frame is obtained using pixel positions of the images along the first and second axis. A first rotational position of the imaging array about a third coordinate axis is obtained using pixel positions of the images along the first and second axes. The third position and the second and third rotational positions of the imaging array about the first and second coordinate axis are determined using feature widths of focus images of the patterns and distances between the mask patterns. | 01-28-2010 |
20100208080 | IMAGING APPARATUS AND A CONTROL METHOD OF THE IMAGING APPARATUS - An imaging apparatus includes an image pickup device, a device that obtains an image from the image pickup device, a sensor that detects a roll angle of the sensor, wherein the sensor detects a reference roll angle of the sensor when the imaging apparatus is disposed at a predetermined roll angle, a device that calculates a reference roll angle of the image pickup device by using a reference image from the image pickup device when the imaging apparatus is disposed at the predetermined roll angle and a device that corrects a roll angle of the sensor by calculating a relative roll angle from the reference roll angle of the image pickup device and the reference roll angle of the sensor. | 08-19-2010 |
20100225769 | STANDARD COLOR REFERENCING PANEL SYSTEM FOR CINEMATOGRAPHING - The present invention relates to a standard color referencing panel system for cinematography that reproduces the original colors of captured images. The standard color referencing panel system for cinematography includes a memory that stores scene display content and standard color display content of an object to be captured; an input unit that allows a user to turn on a power switch and an image capture start switch; a controller that supplies power in response to a power switch on a signal received from the input unit, transmits control signals in response to an image capture start switch on the signal received from the input unit, and reads the scene display content and the standard color display content from the memory; and a display unit that is supplied with power from the controller to preheat a screen, and displays the scene display content and the standard color display content on the screen in response to the control signals transmitted from the controller. According to the above-mentioned structure, it is possible to accurately and easily correct the colors of the captured image, and considerably reduce the time and cost required to correct the colors. As a result, it is possible to exactly reproduce the colors of the captured images and improve the quality of the images. | 09-09-2010 |
20100238298 | METRIC AND SELF-CALIBRATION FOR AN AUTOMATIC, SURVEILLANCE-BASED CHANGE DETECTION SYSTEM OPERATING ON NOISY IMAGERY - Self-calibrating an automatic, surveillance-based change detection system operating on noisy imagery comprises detecting a first image co-registered with a second image, wherein the first image and the second image each comprise pixels of a noisy image of a scene; detecting the second image co-registered with the first image, wherein co-registration of the first image with the second image comprises pixels from different images corresponding to a same location within the scene; producing a calibration factor based on the co-registered images; producing a modified ratio of pixel values corresponding to the first image and the second image from the same location within the scene; and comparing the modified ratio to a pre-determined threshold ratio value. | 09-23-2010 |
20100245593 | APPARATUS AND METHOD FOR CALIBRATING IMAGES BETWEEN CAMERAS - An apparatus for calibrating images between cameras, includes: a detector for detecting dynamic markers from images taken by a motion capture camera and a video camera; a 3D position recovery unit for recovering 3D position data of the dynamic markers obtained by the motion capture camera; a 2D position tracking unit for tracking 2D position data of the dynamic markers obtained by the video camera; a matching unit for matching the 3D position data and the 2D position data of the dynamic markers; and a calibrating unit for converting the 3D position of the dynamic markers on a spatial coordinate system into image coordinates on an image coordinate system of the video camera to calculate intrinsic parameters and extrinsic parameters of the video camera to minimize a difference between coordinates of the 2D position data and the image coordinates. | 09-30-2010 |
20100245594 | CAMERA CALIBRATION TOOL - In one embodiment, the present invention is a camera calibration tool. One embodiment of a three-dimensional test target for calibrating an image capturing device includes a first planar face exhibiting a first color, a second planar face exhibiting a two-toned pattern of a second color and a third color, and a third planar face exhibiting the two-toned pattern of the second color and the third color, wherein the first planar face, the second planar face, and the third planar face meet at a first right-angle convex vertex. | 09-30-2010 |
20110115922 | CALIBRATION APPARATUS AND CALIBRATION METHOD - A calibration apparatus for executing a camera calibration for each of a plurality of cameras mounted on an object so that image capturing ranges of two of the plurality of cameras overlap each other, the calibration apparatus includes an image obtaining unit configured to obtain first and second images captured by the two cameras, a temporary link structure forming unit configured to form a temporary link structure by using the first and second images including images of markers sets, a link angle determining unit configured to determine an effective link angle to form an effective link structure from the temporary link structure, and a parameter determining unit configured to determine a parameter for positioning at least one of the cameras on the basis of the effective link angle. | 05-19-2011 |
20110181735 | Method For Optimized Camera Position Finding For System With Optical Character Recognition - The present invention relates to a method for aligning a camera sensor to significant data which is text or barcode data to be recognized comprising the steps of:—capturing an image of the significant data by means of the camera sensor; —detecting a predominant alignment line of the significant data and detecting an angle thereof in relation to a horizontal line of the captured image; —determining image sections within the edge and line enhanced image which contain most likely significant data lines; —selecting a representative image section out of the determined image sections which is aligned with the predominant alignment line; —capturing a following image of the significant data; tracking the representative image section and determining the predominant alignment line out of the representative image section to achieve a fast calculation and audio or tactile feedback of the alignment quality to the user. | 07-28-2011 |
20110199491 | CALIBRATION INDEX DETERMINATION DEVICE, CALIBRATION DEVICE, CALIBRATION PERFORMANCE EVALUATION DEVICE, SYSTEM, METHOD, AND PROGRAM - Disclosed is a system to determine whether calibration indices are appropriate for each camera when calibrating large quantities of cameras, in which there is great variation in individual differences in image blurring characteristics. The present invention takes an image of a calibration index and calculates the calibration precision that can be expected in calibration from the calibration index image that has been taken. If the calibration precision that can be expected is not optimal for each camera, the density of lines or shapes that constitute the calibration index is changed until the optimum calibration index for each camera is found. | 08-18-2011 |
20110254963 | Methods and Systems for In Situ Calibration of Imaging in Biological Analysis - Software, methods, and systems for calibrating photometric devices are provided. These involve using a non-uniform test illumination field to approximate a photon transfer curve by calculating stable pixel values and statistical dispersions on a pixel-by-pixel basis. | 10-20-2011 |
20110279686 | IMAGE CORRECTION DEVICE AND IMAGE CORRECTION METHOD THEREOF - An image correction device includes an image capturing module, a first calculating module, a second calculating module, a third calculating module, and a correction module. The image capturing module includes an image sensor having a center (Xo, Yo). The image capturing module takes an image of a test chart. A center of the group of black stripes is coincident with a center of the image. The first calculating module is for calculating coordinates of a center of each black stripe of the group of black stripes. The second calculating module is for calculating coordinates (Xc, Yc) of the center of the image. The third calculating module is for calculating a coordinate deviation (ΔX, ΔY)=(Xc−Xo, Yc−Yo). The correction module is for inputting the coordinate deviation (ΔX, ΔY) into the image sensor so that the image sensor corrects the image according to the coordinate deviation (ΔX, ΔY). | 11-17-2011 |
20110310256 | CALIBRATION PATTERN FOR IMAGING DEVICE - A calibration pattern is provided with a central portion and a frame pattern provided outside thereof, the central portion being provided with a rectangular light area in the central portion of the calibration pattern. The frame pattern has a horizontal pattern and a vertical pattern, the horizontal pattern extending to two horizontal sides centering the central portion and alternately provided with a light area and a dark area at a predetermined interval different from an equal interval, the vertical pattern extending to two vertical sides centering the central portion and alternately provided with a light area and a dark area at a predetermined interval different from an equal interval. The horizontal pattern and the vertical pattern include edges, each being positioned equally distant from a predetermined position in the central portion to the two sides, and the edges have an identical change direction of a gray value. | 12-22-2011 |
20120002058 | IMAGE CORRECTION DEVICE AND METHOD - An image correction device includes a test chart, an image capturing module, an image separating module, a processing module, a first calculating module, a second calculating module, and a correction module. The image capturing module includes an image sensor for capturing an image of the test chart. The image includes two second circular black spots. The image separating module separates the image, thus obtaining a channel image. The processing module is for binarizing the channel image, thus obtaining a binary image of the channel image. The first calculating module calculates coordinates of the centers of the two second spots of the binary image. The second calculating module calculates a rotated angle of the image. The correction module inputs the rotated angle into the image sensor so that the image sensor corrects the image. | 01-05-2012 |
20120092505 | TELEVISION CAMERA AND TELEVISION CAMERA CONTROL SYSTEM - Provided is a television camera using a solid-state imaging device, wherein color signal adjustment between TV cameras can be performed easily and quickly without relying on the level of skill of an operator. The serial digital signal of a TV camera (a master) acting as the standard for color signal adjustment is directly input into another TV camera (a slave) that adjusts the color signal, and the image level of each channel of the slave is automatically adjusted in a manner such that the image level of each channel of the master corresponds with that of the slave. | 04-19-2012 |
20120206612 | TEST TARGET FOR COLOR CALIBRATING A CAMERA AND LENS COMBINATION - In one embodiment, the present invention is a test target for color calibrating a camera and lens combination. One embodiment of a test target for use in color calibrating a camera and lens combination includes a first substantially flat plane, the first substantially flat plane including a first magnetic support surface, a second substantially flat plane, the second substantially flat plane including a second magnetic support surface, and a hinge connecting the first substantially flat plane to the second substantially flat plane. | 08-16-2012 |
20120274788 | RESOLUTION TEST DEVICE AND METHOD THEREOF - A resolution test device and a method thereof are provided. The resolution test method is adapted for testing a resolution of a camera device. The resolution test method includes providing a graph to the camera device, capturing a test image shot by the camera device, shifting an analyzing window a specific distance in a first direction from a static area to a first area on the test image, analyzing the first area to generate a first high-pass element, shifting the analyzing window back to the static area, shifting the analyzing window the specific distance in a second direction from the static area to a second area on the test image, analyzing the second area to generate a second high-pass element, generating a third high-pass element according to the first and the second high-pass element, and defining the resolution of the camera device according to the third high-pass element. | 11-01-2012 |
20130057706 | VIDEO QUALITY ANALYZER - Methods, systems and software are disclosed for automated Measurement of Video Quality parameters. The system includes a static Test Pattern provided either in form of a Test Pattern File, converted via a standard playout device (test source) into analog or digital test signal and supplied to the input of a System Under Test, or in form of a Reflectance Chart installed before the front-end device of the System Under Test, such as TV camera. The system also includes a video capture device connected to the back-end device of the System Under Test, e.g. to the output of system decoder/player. A Video Quality Analyzer processes the captured video data and generates a detailed Analysis Report. | 03-07-2013 |
20130083205 | FULL FIELD SHARPNESS TEST - A test chart can be used to test sharpness performance of an imaging system's full image field by having a sharpness inspection area formed of a plurality of identical visual elements that abut each other leaving no gaps to thereby form a mosaic. Each visual element includes a plurality of groups of differently oriented contrasting lines. The mosaic may fill an entire image captured by an imager. Thus, a test system can image the chart to objectively assess the performance of the imaging system in terms of image quality (e.g. sharpness, tilt, etc) throughout the entire spatial area of the captured image. The size of the chart and spatial frequency spacing) of the visual element lines can be selected to test an imaging system's full field sharpness at selected spatial frequencies. The full field sharpness results more quickly and accurately determine different aspects of a given imaging system. | 04-04-2013 |
20130107059 | NOISE DETECTING DEVICE, NOISE DETECTING METHOD, AND PROGRAM | 05-02-2013 |
20130141593 | SYSTEM AND METHOD FOR AUTOMATED CALIBRATION AND CORRECTION OF DISPLAY GEOMETRY AND COLOR - Various embodiments are described herein for a system and method for calibrating a display device to eliminate distortions due to various components such as one or more of lenses, mirrors, projection geometry, lateral chromatic aberration and color misalignment, and color and brightness non-uniformity. Calibration for distortions that vary over time is also addressed. Sensing devices coupled to processors can be used to sense display characteristics, which are then used to compute distortion data, and generate pre-compensating maps to correct for display distortions. | 06-06-2013 |
20130162840 | COLOUR CALIBRATION CARD - A colour calibration card ( | 06-27-2013 |
20130169825 | METHOD AND APPARATUS FOR MEASURING RESPONSE CURVE OF AN IMAGE SENSOR - The present disclosure discloses a method and an apparatus for measuring response curve of an image sensor. The method comprises: taking at least one photograph of a Grey Scale card with an image sensor to be measured, wherein the photograph comprises a plurality of greyscale image blocks; calculating relative exposure values for each greyscale image block respectively corresponding to the greyscale blocks of the Grey Scale card; plotting a plurality of reference points based on pixel values of pixel points within each greyscale image block and the relative exposure values, and executing an interpolation calculation based on the reference points to obtain a response curve of the image sensor. | 07-04-2013 |
20130222607 | Camera device, camera system and camera calibration method - An object of the present invention is to simplify a calibration operation of a camera and to shorten a time necessary for calibration. A camera calibration device | 08-29-2013 |
20130242118 | SHOWING SKIN LESION INFORMATION - Among other things, on a two-dimensional electronic display are shown simultaneously: (a) at least a partial body view of a surface of the human model on which a location of a skin lesion on a corresponding real human has been indicated, and (b) an image of the lesion area that corresponds to the partial body view of the human model. | 09-19-2013 |
20130258116 | IMAGE-CAPTURING DEVICE AND PROJECTION AUTOMATIC CALIBRATION METHOD OF PROJECTION DEVICE - An image-capturing device and a projection automatic calibration method of a projection device are provided. The image-capturing device includes an image sensing device, a lens, a processing unit and a storage unit. The lens is configured to image a calibration pattern on the image sensing device. The processing unit is configured to issue a projection calibration requirement and analyze the calibration pattern imaged on the image sensing device to obtain information relating to the calibration pattern, and the processing unit is further configured to convert imaging coordinates of the calibration pattern imaged on the image sensing device into projecting coordinates of the projection device by executing a calibration driving program to establish a coordinate conversion table. The storage unit is configured to store the calibration driving program and the coordinate conversion table. | 10-03-2013 |
20130335579 | DETECTION OF CAMERA MISALIGNMENT - A camera system ( | 12-19-2013 |
20130335580 | IMAGING DATA CORRECTION SYSTEM AND METHOD - Methods and systems for use in calibrating imaging data, are provided that include using a calibration array to generate a test pattern. The calibration array can emit a test pattern having geometric, temporal, and electromagnetic characteristics. The collected data can be compared with the geometric, temporal and electromagnetic characteristics to determine an error factor that can then be used in analyzing the collected data. | 12-19-2013 |
20140036096 | IMAGE SENSOR POSITIONING APPARATUS AND METHOD - A method is provided for positioning an image sensor having a light receiving plane within a camera and a system is provided for identifying the position of an image sensor. The method comprises projecting a first group of substantially parallel light beams representing a first predetermined pattern onto the light receiving plane of the image sensor at an angle of incidence, projecting a second group of substantially parallel light beams representing a second predetermined pattern onto the light receiving plane of the image sensor at an angle of incidence, registering positions on the light receiving plane of the image sensor where the light beams are detected by the image sensor, generating adjustment information based on the registered positions, indicating if the present position of the image sensor is an erroneous position or not, and adjusting the position of the image sensor based on the adjustment information. | 02-06-2014 |
20140111656 | SYSTEM AND METHOD FOR DETERMINATION AND ADJUSTMENT OF CAMERA PARAMETERS USING MULTI-GAIN IMAGES - This invention provides a system and method for auto-regulation of parameters a vision system camera and/or associated illumination of objects imaged by the camera using a plurality of differentiated gain (multi-gain) settings on the camera's image sensor to determine the gain value producing the most-readable image. The image (having the best characteristics) acquired using multiple gain settings can be read for information as a discrete gain image and/or the camera parameters (e.g. global gain and/or global exposure time) can be uniformly set across the pixel array to the best values for acquisition of a subsequent, higher sampled image. This image is then read (e.g. decoded) for information contained within any identified features of interest (e.g. found IDs). | 04-24-2014 |
20140125819 | IMAGE PROCESSING APPARATUS AND METHOD, IMAGE PROCESSING SYSTEM AND PROGRAM - There is provided an image processing apparatus including multiple imaging units included in a stereo camera, the multiple imaging units configured to photograph a chart pattern including a pole, and a correction parameter calculation unit configured to calculate a correction parameter that corrects a gap between the multiple imaging units, based on the pole and a pattern included in the chart pattern photographed by the multiple imaging units. | 05-08-2014 |
20140152845 | camera testing device and method for testing a camera - A testing device for a camera, in particular of driver assistance systems in a motor vehicle, including a mount for a camera and at least two light sources for emitting test light toward the camera, the mount and at least one of the at least two light sources being situated fixed in relation to one another with respect to their relative location and position, and a control device which is configured to activate the at least two light sources in such a way that in chronological sequence one light source is switched on and the at least one other light source is switched off. Also described is a related testing method for a camera and a testing system. | 06-05-2014 |
20140184815 | CALIBRATION PLATE FOR CALIBRATING A PLURALITY OF IMAGE CAPTURING DEVICES AND METHOD FOR CALIBRATING A PLURALITY OF IMAGE CAPTURING DEVICES - A calibration plate and a method for calibrating image capturing devices are provided. The calibration plate includes: a plate having a front face and a rear face; a plurality of calibration patterns formed at the front face of the plate, arranged in a regular manner, and used to calibrate image distortions, lens aberrations, and image center positions for the image capturing devices; and a plurality of graphically encoded patterns formed at the front face of the plate, the graphically encoded patterns being different from each other, and the graphically encoded patterns having information providing the positions of the calibration patterns. | 07-03-2014 |
20140192208 | Lighting System Characterization - Embodiments of the invention relate to digital imaging, and in particular, systems methods, and devices for testing target field illumination characteristics. Certain embodiments include a main unit that includes a controller configured to control timing indicators on a front surface of the main unit and light sensor modules attached to the periphery the front surface. The main unit can be configured to accept an image quality test chart. The light sensors can be configured to be coupled to the periphery of the image quality test chart or coupled to extended wired or wireless connections to provide flexible field of view placement. The display includes LED or LCD timing indicators. | 07-10-2014 |
20140211022 | ACQUISITION OF COLOR CALIBRATION CHARTS - The present disclosure related to acquisition of color calibration charts. In at least some examples herein, an image of a calibration color chart is processed. A lighting condition of the color calibration chart may be automatically determined. | 07-31-2014 |
20140218543 | VIDEO QUALITY ANALYZER - Methods, systems and software are disclosed for automated Measurement of Video Quality parameters. The system includes a static Test Pattern provided either in form of a Test Pattern File, converted via a standard playout device (test source) into analog or digital test signal and supplied to the input of a System Under Test, or in form of a Reflectance Chart installed before the front-end device of the System Under Test, such as TV camera. The system also includes a video capture device connected to the back-end device of the System Under Test, e.g. to the output of system decoder/player. A Video Quality Analyzer processes the captured video data and generates a detailed Analysis Report. | 08-07-2014 |
20140232879 | Color calibration chart acquisition - The present disclosure relates to color calibration chart acquisition. In an example, a video acquired by an imaging device may be processed. The video may be analyzed to automatically detect a reproduction of a color calibration chart. Upon detection of a reproduction of the color calibration chart, it may be determined whether color calibration chart reproduction quality is within a selected quality threshold. Upon determining that color calibration chart reproduction quality is not within a selected threshold, user feedback may be provided, via the imaging device, to dynamically guide the user to make adjustments in the video acquisition in order to obtain a color calibration chart reproduction within the selected quality threshold. | 08-21-2014 |
20140247367 | MEASUREMENT METHOD, MEASUREMENT APPARATUS, COMPUTER READABLE RECORDING MEDIUM HAVING STORED THEREIN MEASUREMENT PROGRAM - A theoretical motion blur amount is calculated. A static state image is acquired. For each of the plurality of shutter speed values, a bokeh amount at the boundary between different color areas in each of a plurality of the static state images that have been acquired is measured as a bokeh offset amount. A vibrated state image while the camera is being vibrated with its image stabilization function being ON is acquired. A bokeh amount at the boundary between different color areas in each of the plurality of vibrated state images that have been acquired is measured as a measured comprehensive bokeh amount. And an evaluation value indicating the performance of the image stabilization function of the camera is calculated based on the theoretical motion blur amount, the bokeh offset amount, and the measured comprehensive bokeh amount. | 09-04-2014 |
20140313350 | IMAGING SYSTEMS WITH REFERENCE PIXELS FOR IMAGE FLARE MITIGATION - Imaging devices may include processing circuitry, a lens, and an array of image sensor pixels and reference pixels. The array may receive direct image light and stray light from the lens. The image sensor pixels may include clear color filter elements and the reference pixels may include opaque color filter elements. The opaque color filter elements may block direct image light from being captured by the reference pixels. The image sensor pixels may generate pixel values in response to the direct image light and the stray light whereas the reference pixels may generate reference pixel values in response to the stray light. The processing circuitry may mitigate stray light effects such as local flare and veiling glare within the imaging system by adjusting the pixel values based on the reference pixel values. The imaging system may be calibrated in a calibration system for generating stray light calibration data. | 10-23-2014 |
20150070511 | SYSTEM AND MOVING MODULATED TARGET WITH UNMODULATED POSITION REFERENCES FOR CHARACTERIZATION OF IMAGING SENSORS - Embodiments of a system for characterization of an imaging sensor using a moving modulated target with unmodulated position references is generally described herein. A target pattern comprises through-holes in a slide and resolved patches on the slide. The slide and patch have different emission intensities in the sensor’ detection band. A modulation is applied to only the emission intensities of the through-holes. The target pattern is moved across the field-of view (FOV) of the imaging sensor to present the target pattern across different frames at different positions. Frames of images of the moving target pattern as seen in the FOV of the imaging sensor are captured to generate modulated image data outputs. The unmodulated position references provided by the resolved patches are measured and used to align the modulated image data outputs, which are processed to generate data products representative of a response of the imaging sensor. | 03-12-2015 |
20150138372 | DEVICE AND METHOD FOR MEASURING A CAMERA - A device and a method are described for measuring a camera having an image sensor, in particular a fixed-focus camera, the device including: a camera support for accommodating at least one camera to be tested in at least one camera position, a collimator device for emitting collimator light of a test pattern having different object distances, a mirror system for deflecting the collimator light to the camera position, the mirror system having at least one first mirror device which is pivotable by a mirror adjustment device into multiple pivot positions, and a second mirror device having multiple second mirror units, the second mirror units reflecting the light emitted by the first mirror device in its different pivot positions to the camera position for imaging the test pattern in different image regions of an image sensor. | 05-21-2015 |
20160037158 | IMAGE PICKUP DEVICE, CALIBRATION SYSTEM, CALIBRATION METHOD, AND PROGRAM - An image capturing device | 02-04-2016 |
20160080737 | POINT SPREAD FUNCTION ESTIMATION OF OPTICS BLUR - A method for estimating an optics point spread function ( | 03-17-2016 |
20160088266 | AUTOMATIC IMAGE COLOR CORRECITON USING AN EXTENDED IMAGER - A method and apparatus for performing automatic color correction are described. In one embodiment, the apparatus is an image capture apparatus including a lens, an extended imager for capturing an image frame including a scene and a color calibration chart, and a digital image processing unit configured to perform color correction on the captured scene using the captured color calibration chart. The extended imager includes an output area for capturing the scene and an extended area for capturing the color calibration chart at substantially the same time while keeping the respective images of the scene and the chart spatially separate. | 03-24-2016 |
20160094840 | CALIBRATION TARGET FOR VIDEO PROCESSING - An apparatus is disclosed which may serve as a target for calibrating a camera. The apparatus includes a hollow body having an interior surface, an exterior surface and at least one window formed in the hollow body through which the interior surface is visible. A plurality of distinguishable fiducial markers are arranged in a predetermined pattern along the interior and exterior surface of the hollow body. The fiducial markers can be distinguishable such that, for any given image of the target captured by a camera, there is only one position, rotation, distortion value, and focal length for the camera of interest. | 03-31-2016 |
20160112699 | TESTING CHART, CAMERA MODULE TESTING SYSTEM AND CAMERA MODULE TESTING METHOD - The present disclosure relates to a camera module testing method, the camera module testing method includes following steps: providing a testing chart, wherein the testing chart includes a scaleboard and at least four marks distributed on the scaleboard, each quadrant of a rectangular coordinate system with an origin thereof meeting a geometric center of the testing chart is distributed with at least one of the marks; providing a camera module for capturing an image of the testing chart, wherein the camera module includes a voice coil motor; providing a processor, the processor can generate a movement distance and a horizontal offset of the voice coil motor according to the image captured by the camera module and the location of the at least four marks. The disclosure also relates to a testing chart and a camera module testing system using the testing chart. | 04-21-2016 |
20160150227 | MINIMUM-SPACING CIRCUIT DESIGN AND LAYOUT FOR PICA - Methods for testing the resolution of an imaging device include forming a plurality of semiconductor devices having proximal light emitting regions, such that the light emitting regions are grouped into distinct shapes separated by a distance governed by a target resolution size. The semiconductor devices are activated by providing an input signal. Light emissions from one or more of the activated semiconductor devices are suppressed by providing one or more select signals. | 05-26-2016 |
20160165226 | VIDEO STREAMING AND VIDEO TELEPHONY DOWNLINK PERFORMANCE ANALYSIS SYSTEM - The technology disclosed relates to scoring user experience of video frames displayed on a mobile or other video display device. In particular, it relates to capture alignment and test stimulus isolation techniques that compensate for artifacts in the capture mechanism. The technology disclosed includes methods and systems for analyzing both downlink and uplink quality for mobile or other video display device cameras capturing and transmitting video frames including teleconference video display. Particular aspects of the technology disclosed are described in the claims, specification and drawings. | 06-09-2016 |