| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 348655000 | Color balance or temperature (e.g., white balance) | 26 |
| 20090002561 | COLOR-ADJUSTMENT TECHNIQUE FOR VIDEO PLAYBACK - Embodiments of a system that includes one or more integrated circuits are described. During operation, the system receives a video image. Then, the system jointly modifies brightness values of pixels in at least a portion of the video image and an intensity setting of a light source to maintain light output from a display while reducing power consumption by the light source, where the light source is configured to illuminate the display that is configured to display video images. Next, the system adjusts color content in the video image to correct for a dependence of a spectrum of the light source on the intensity setting. | 01-01-2009 |
| 20090009664 | Color image processing apparatus, color image processing method, program and recording medium - A color image processing apparatus performs color image display using a red display, green display, blue display and white display. The apparatus includes a white signal generation circuit generating a white signal W based on an input red signal R | 01-08-2009 |
| 20090021647 | APPARATUS FOR CONTROLLING COLOR TEMPERATURE - Disclosed is the apparatus for controlling color temperature enabling the color region determiner to determine whether the inputted chroma signal value in pixels belongs to a pre-set achromatic color region or a chromatic color region, and the color temperature corrector to correct the chroma signal gains according to the determined achromatic color region or chromatic color region. | 01-22-2009 |
| 20090059080 | Device and Method for Color Adjustment - Device and method for color adjustment for adjusting white color of an image including a weight generating unit, a color shift value generating unit, and an adjustment unit. The weight generating unit receives a first color value of the image and generates a weight according to the first color value. The color shift value generating unit receives the first color value and the weight and generates a color shift value according to the first color value and the weight. The adjustment unit receives the first color value and the color shift value and generates a second color value according to the first color value and the color shift value. | 03-05-2009 |
| 20090066844 | PREDICTIVE TV ADJUSTMENT OF PARAMETER SUCH AS WHITE BALANCE - Two measurements spaced a shorter time apart than a stabilization period are made of a TV display and used to access a predicted white balance adjustment database to return white balance offsets for entry into the TV. | 03-12-2009 |
| 20090086101 | CAMERA CAP WITH A WHITE BALANCE INSERT - A dual-purpose camera cap functions as a camera lens protector and a white balance filter. The camera cap includes a camera cap body having a locking mechanism or a flexible member to engage with or fitted over a camera lens housing. The camera cap body also includes a ring-shaped area to be placed in front of a camera lens to partially cover the camera lens. The ring-shaped area defines a center cut-out region. A translucent piece is fitted into the center cut-out area of the camera cap body to protect the camera lens and provide the white balance filtering function. | 04-02-2009 |
| 20090115906 | BLUE STRETCH USING RESTRICTED COLOR RANGE AND SOFT TRANSITION BOUNDARY - System and method for increasing the blue component of white and near white pixels while avoiding hard transitions and without affecting flesh-tone colors. Pixels that are bright enough and fall within a detection area in the UV-plane have their blue components increased and their red components decreased. The detection area is limited to avoid application of blue stretch to flesh-tone colors. A transition boundary is provided around the detection area for gradually decreasing the amount of blue stretch as pixels move away from the boundary of the detection area, thereby avoiding hard transitions between areas that are blue stretched and areas that are not blue stretched. | 05-07-2009 |
| 20100039562 | Source and output device-independent pixel compositor device adapted to incorporate the digital visual interface (DVI) - A pixel compositor device for routing an incoming stream of pixel data having been rendered elsewhere and bound for being projected. The device includes a plurality of digital signal inputs each adapted for receiving a plurality of pixel information from the incoming stream of pixel data. The digital signal inputs are in communication with at least one buffer for the pixel information once received by the device. A processing unit is included for image warping the pixel information by performing, on each of a respective of the pixel information: (i) a mapping relating to location of the respective pixel information, and (ii) a scaling function. The geometric mapping can be performed by applying an interpolation technique; and the scaling function can be any of a number of photometric correction functions (alpha-blending, color uniformity correction, image brightness or contrast adjustment, etc.). Once an image warping has been performed on the respective pixel information, it is routed out of the device through one of several digital signal outputs. A system for routing pixel data is disclosed having two or more of the pixel compositor devices in communication with an image rendering cluster of units (as the source of the incoming stream of pixel data) and a plurality of projectors; as is a method for routing an incoming stream of pixel data having been rendered elsewhere and bound for being projected. | 02-18-2010 |
| 20100149420 | METHOD AND APPARATUS FOR IMPROVING AUTOMATIC WHITE BALANCE WITH SCENE INFORMATION - A method and apparatus for automatic white balancing of an image. The method includes retrieving scene analysis of the image, determining at least one of the type of the scene and a scene content map utilizing the scene analysis of the image, performing scene adaptive white balance, if overall scene category type is used, perform white balance by applying global R, G, B gains optimized for the global scene type, and if scene segmentation map is used, perform locally adaptive white balance by applying an R, G, B gain map optimized for each scene content. | 06-17-2010 |
| 20100157160 | SETTING THE WHITE BALANCE OF A VIDEO FRAME - Disclosed is a method for setting the white balance of a video frame. The frame is first divided into sub-regions. Those sub-regions determined to be possibly dominantly monochromatic are eliminated from consideration, and the white balance is set by adjusting the color gain of the frame, the adjusting based on the other sub-regions in the frame. A sub-region is determined to be possibly dominantly monochromatic if the difference between its averaged color and each of a set of neutral reference colors is greater than a threshold. If the difference between the averaged color and at least one of the neutral reference colors is less than or equal to the threshold, then the sub-region is still determined to be possibly dominantly monochromatic if that neutral reference color, along with an illuminant type of a previous frame in the video, match closely enough to an element in an ambiguous reference color list. | 06-24-2010 |
| 20100194991 | Apparatus and method for auto white balance control considering the effect of single tone image - An apparatus for auto white balance includes a histogram generation unit writing respective histograms of Cb values and Cr values with regard to pixels included in an input image frame, a single-tone determination unit comparing respective maximum values of the histograms of Cb values and Cr values with a first threshold value, and determining the input image frame as a single-tone image if at least one of the maximum values is higher than the first threshold value, and an auto white balance gain computation unit computing and an auto white balance gain by using color information of an input image frame and outputting the computed auto white balance gain, wherein if the input image frame is determined to be a single-tone image, the auto white balance gain computation unit outputs an auto white balance gain computed with respect to a previous input image frame. | 08-05-2010 |
| 20100277648 | WHITE-BASED POWER SAVINGS - Described herein are power conservation techniques that reduce power consumption for an electronics device including a display. The techniques divide video information for display into white and non-white video information. The white video information is altered such that the alteration decreases the amount of power required to display the white video information. The altered white video information and non-white video information are then visually output together. White-based power conservation as described herein may be performed while a person uses the electronics device, which reduces power consumption continually during usage. | 11-04-2010 |
| 20100295997 | AUTOMATIC WHITE BALANCE SYSTEM AND METHOD THEREOF - An automatic white balance (AWB) system including a luminaire, a light sensing unit, an analog-to-digital converter, a control unit and a driving circuit is provided. In the AWB system of a projection apparatus, the suitable AWB method is applied. The light sensing unit includes a light sensor and a light sensing circuit. The light sensor is coupled to the light sensing circuit for sensing intensity of the color lights emitted from the luminaire, no matter what colors the color lights emitted from the luminaire are. The white balance of the color lights in the AWB system of the projection apparatus is automatically achieved with the light sensor instead of the color sensors. Therefore, the cost of the projection apparatus with the AWB system is reduced. | 11-25-2010 |
| 20110080524 | VIDEO SIGNAL PROCESSING CIRCUIT, DISPLAY DEVICE, MOBILE TERMINAL, AND PROGRAM - Shown is a diagram showing input-output characteristics for color adjustment. The horizontal axis represents an input, and the vertical axis represents an output. In this color adjustment technique, first, so as to prevent degradation the luminance of white after white correction, correction coefficients are determined so that the smallest value thereof may be 1. Note that “1” here is not a strict value. To be more specific, in contrast to the conventional technique in which correction is performed with the largest value being made equal to about “1,” the present embodiments sets the smallest value at about “1.” This idea itself is a first point which makes the embodiments different from the conventional technique. When doing so, all the correction coefficients are “1” or larger. In the case where a correction coefficient is “1” or larger, when the input is large, the output is saturated. To prevent the saturation, the saturation suppressed using an n-degree curve (X | 04-07-2011 |
| 20110279731 | BEZEL COLOR COORDINATION - A processor, such as a TV processor, determines which one of at least two audio-video components is sending signals to a TV for display. Based on the determining act, the processor establishes a color of a bezel of the TV. | 11-17-2011 |
| 20130250177 | METHOD AND DEVICE FOR TENTATIVELY DISPLAYING PROJECTION IMAGE, SCREENING FILM, METHOD AND DEVICE FOR PRODUCING THE SAME, PROJECTION IMAGE PROJECTING METHOD, PROGRAM, AND MOVIE SYSTEM - Using a lookup table for obtaining a tentative-display image having colors that agree with colors of a projection image when a screening film, which is produced based on image data produced by measuring a shading pattern of a projector used to screen the screening film onto a screen and editing an input image, is projected onto the screen, color-correction image data for tentatively displaying the projection image are produced from image data, while image data are produced by providing color-correction image data with the shading pattern and, for verifying a showing of the projection image to be projected, the projection image is tentatively displayed as the tentative-display image based on the shading-provided image data. | 09-26-2013 |
| 20130258199 | VIDEO PROCESSOR AND VIDEO PROCESSING METHOD - In one embodiment, there is provided a video processor. The video processor includes: a storage configured to store characteristic data of a display; a generator configured to generate target tristimulus values based on the characteristic data and a luminance value at a first gradation level and to generate correction values based on the target tristimulus values; and a processor configured to correct a color temperature of at least an interval between a high-gradation portion and a low-gradation portion based on the correction values. | 10-03-2013 |
| 20130321706 | VIDEO PROCESSING DEVICE AND METHOD OF VIDEO PROCESSING - According to one embodiment, a video processing device includes: an operator configured to accept a gain adjustment value with respect to at least any one of an R signal, a G signal, and a B signal of a video signal from a user; a gain adjuster configured to obtain a gain by using a white balance adjustment value and the gain adjustment value with respect to each of the R, G, and B signals; a determiner configured to determine whether any of the gain of the R signal, the gain of the G signal, and the gain of the B signal is equal to or greater than 1; and a processor configured to decrease the gain when any of the gain of the R signal, the gain of the G signal, and the gain of the B signal is equal to or greater than 1. | 12-05-2013 |
| 20140139745 | METHOD AND APPARATUS FOR TEMPORAL STABILIZATION OF STREAMING FRAMES - A method, apparatus and computer program product are disclosed to provide improved temporal stabilization of a control algorithm associated with the processing of streaming frames. In the context of a method, the number of immediately preceding consecutive frames during which a filtered value has been greater than a current value of the current frame is determined or the number of immediately preceding, consecutive frames during which the filtered value has been less than the current value of the current frame is determined. The method also includes determining a weight based upon the number of immediately preceding, consecutive frames. The weight is configured to vary in a direct relationship to the number of immediately preceding, consecutive frames. The method also determines a filtered value of a current frame based upon a combination of the weight and the difference between the prior filtered value and the value of the current frame. | 05-22-2014 |
| 20140340580 | VIDEO DISPLAY APPARATUS - In a video display apparatus A, a controller | 11-20-2014 |
| 20220141438 | DATA PRE-PROCESSING FOR CROSS SENSOR AUTOMATIC WHITE BALANCE - Learning-based color correction (e.g., auto while balance (AWB)) procedures may be trained based on datasets from different sensors using a pre-processing procedure. Each input pixel may be converted into a sensor-independent representation through multiplication by a sensor-specific color conversion function (e.g., a 3×3 matrix). The sensor-specific color conversion function (e.g., the 3×3 matrix) may be obtained based on a sensor type. For example, the sensor-specific color conversion function, such as a 3×3 matrix, may be obtained by a corresponding sensor calibration procedure performed using laboratory images of a color checker chart subject to standard illuminants. Parameters of the sensor-specific color conversion function may be optimized in a chromaticity space. For instance, a sensor-specific 3×3 matrix for color conversion may be optimized using a distance in the chromaticity space between calibration data (e.g., calibration configurations) and sensor-independent targets (e.g., a target sensor-independent representation for each calibration configuration). | 05-05-2022 |
| 348656000 | Receiver type | 5 |
| 20090128704 | Color sequential illumination for spatial light modulator - The present invention provides a display apparatus, comprising: a light source or light sources for emitting a luminous flux or luminous fluxes having a plurality of colors; a spatial light modulator for modulating the luminous flux(es) having a plurality of colors incoming from the light sources; and controller for processing video image input data, which is input, and controlling the light source(s) and the spatial light modulator, wherein the controller generates a plurality of video image signals of colors constituting a video image based on the video image input data, and controls the light source(s) so as to cause the light source(s) having at least two colors, from among the light source(s) having a plurality of colors, to perform pulse emission in sequence and modulate the pulse emission during a period shorter than a modulation period controlled under the spatial light modulator is with the video image signal of one color from among the video image signals. | 05-21-2009 |
| 20110141370 | Image processing circuit, image display device, and an image processing method - The present invention is arranged such that interlace image data, which has been supplied, is converted to progressive image data in an I/P conversion section, and the image data converted to progressive style in the I/P conversion section is subjected to image processing including data comparison in spatial or time series manner, in an image processing section. | 06-16-2011 |
| 20130308057 | METHOD, APPARATUS AND SYSTEM TO PROVIDE VIDEO DATA FOR BUFFERING - Techniques and mechanisms for circuitry to provide video data for loading to a buffer. In an embodiment, a loader circuit receives video data and determines MX data for a video frame and NZ data for the video frame, wherein M and N are different respective dimensions of a color space, and wherein X is a first encoding type and Z is a second encoding type. The first MX data includes data representing a first portion of a color component value, and the first NZ data includes data representing a second portion of that color component value. In another embodiment, the loader circuit sends the MX data via a first channel while sending the NZ data via a second channel to a random access buffer. | 11-21-2013 |
| 348657000 | Including feedback control | 2 |
| 20090141175 | Handheld apparatus and operating method thereof - The invention provides a handheld apparatus and an operating method thereof. The handheld apparatus is electrically connected to a RGB color temperature sensor. The handheld apparatus comprises a receiving module, a signal converting module, and a color temperature calculating module. The receiving module is for receiving a set of RGB analog color temperature of an environment which the handheld apparatus lies in from the RGB color temperature sensor. The signal converting module is electrically connected to the receiving module, for converting the set of RGB analog color temperature into a digital color temperature signal. The color temperature calculating module is electrically connected to the signal converting module, for generating an absolute color temperature related to the environment, based on the digital color temperature signal. | 06-04-2009 |
| 348658000 | Including optical sensor to observe display (e.g., CRT) | 1 |
| 20100259686 | WHITE BALANCE CORRECTION METHOD - A method for correcting the white balance of a display by: setting a target color coordinates of a target white point of a target white point plane at a predetermined color temperature and a group of gray levels as the input gray levels in response to a user input command; constructing a white color image according to the group of the gray levels; measuring luminance and color coordinates of a measured white point of the white color image; estimating luminance of the R, G, B based on the standard color coordinates defined in a standard color space, the measured luminance and color coordinates of the measured white point; estimating gray levels of the R, G, B based on the estimated luminance of the R, G, B; and reconstructing the Gamma table based on the estimated adjusted gray levels of the two adjustable colors. | 10-14-2010 |
