Patent application number | Description | Published |
20090201374 | WHITE BALANCE CALIBRATION FOR DIGITAL CAMERA DEVICE - This disclosure describes automatic self-calibration techniques for digital camera devices. In one aspect, a method for performing a calibration procedure in a digital camera device comprises initiating the calibration procedure when a camera sensor of the digital camera device is operating, accumulating data for the calibration procedure, the data comprising one or more averages of correlated color temperature (CCT) associated with information captured by the camera sensor, calculating one or more CCT vectors based on the one or more averages of CCT, and generating gray point correction factors based on the one or more CCT vectors. | 08-13-2009 |
20100157078 | HIGH DYNAMIC RANGE IMAGE COMBINING - Systems and methods of high dynamic range image combining are disclosed. In a particular embodiment, a device includes a global mapping module configured to generate first globally mapped luminance values within a region of an image, a local mapping module configured to generate second locally mapped luminance values within the region of the image, and a combination module configured to determine luminance values within a corresponding region of an output image using a weighted sum of the first globally mapped luminance values and the second locally mapped luminance values. A weight of the weighted sum is at least partially based on a luminance variation within the region of the image. | 06-24-2010 |
20100157136 | SYSTEM AND METHOD TO AUTOFOCUS ASSISTED BY AUTOEXPOSURE CONTROL - In a particular embodiment, a method is disclosed that includes comparing a frame rate of image capture by an image sensor to a frame rate threshold at an image capture device. The method also includes when the frame rate is less than the frame rate threshold, increasing the frame rate to a modified frame rate that is greater than or at least equal to the frame rate threshold. The method further includes performing an autofocus operation on an image to be captured at the modified frame rate. | 06-24-2010 |
20100157139 | SYSTEM AND METHOD TO ESTIMATE AUTOEXPOSURE CONTROL AND AUTO WHITE BALANCE - In a particular embodiment, a method is disclosed that includes determining at least one ambient exposure parameter using an ambient illumination, the at least one ambient exposure parameter including a first sensitivity parameter of an autoexposure controller using the ambient illumination. The method includes determining at least one low-illumination parameter using a first lamp level, the at least one low-illumination parameter including a second sensitivity parameter of the autoexposure controller using the first lamp level, where the autoexposure controller is configured to operate according to at least one high-illumination parameter based on the at least one ambient exposure parameter and the at least one low-illumination parameter. The method further includes performing an image capture operation using a second lamp level that is brighter than the first lamp level, where the at least one high-illumination parameter includes a third sensitivity parameter. | 06-24-2010 |
20100259639 | AUTOMATIC BACKLIGHT DETECTION - In a particular embodiment, a method is disclosed that includes receiving image data at an auto white balance module and generating auto white balance data. The method further includes detecting a backlight condition based on the auto white balance data. An apparatus to automatically detect a backlight condition is also disclosed. | 10-14-2010 |
20100265344 | AUTO-TRIGGERED FAST FRAME RATE DIGITAL VIDEO RECORDING - This disclosure describes techniques for triggering recording of digital video in a fast frame rate mode. In one example, a digital video recording apparatus includes a video sensor that captures digital video data at a fast frame rate in a fast frame rate mode, a video buffer that buffers the captured digital video data according to a first-in-first-out storage schema, a video storage that stores digital video data, and a motion detection unit that detects fast motion in the buffered digital video data, that stores digital video data from the video sensor in the video storage after detecting the fast motion, and that copies the contents of the video buffer to the video storage prepended to the stored video data. The digital video recording apparatus may be incorporated in a wireless communication device, such as a cellular phone. | 10-21-2010 |
20100271507 | IMAGE CAPTURE PARAMETER ADJUSTMENT USING FACE BRIGHTNESS INFORMATION - A system and method of image capture parameter adjustment using face brightness information is disclosed. In a particular embodiment, a method is disclosed that includes determining a luma value based on a brightness variation within a selected portion of an image, where the selected portion of the image corresponds to at least a portion of a face. The method further includes adjusting an image capture parameter at least partially based on the determined luma value. | 10-28-2010 |
20110312311 | METHODS AND APPARATUSES FOR GESTURE BASED REMOTE CONTROL - Methods and apparatuses are provided that may be implemented in and/or with a mobile device to allow gesture based remote control of one or more controllable devices. | 12-22-2011 |
20120105668 | REGION OF INTEREST EXTRACTION - An example image capture device determines a region of interest using a first image captured while a light source is powered off and a second image captured while a light source is powered on and uses the region of interest to automatically set configurations. In one example, an image capture device includes a controlled light source, an image sensor configured to capture images, and a processing unit configured to cause the image sensor to capture a first image of a scene while the controlled light source is powered off, cause the image sensor to capture a second image of the scene while the controlled light source is powered on, calculate luminance differences between a plurality of regions in the first image and a plurality of collocated regions in the second image, and determine that a region of interest includes those regions for which the luminance differences exceed a threshold. | 05-03-2012 |
20120257065 | SYSTEMS AND METHODS TO CALIBRATE A MULTI CAMERA DEVICE - Present embodiments contemplate systems, apparatus, and methods to calibration a multi camera device. Particularly, present embodiments contemplate initiating a calibration of multiple cameras in response to a predetermined event. A calibration records current environmental conditions along with the sensor positions of each camera when focused. By recording a plurality of calibration points under a variety of imaging and environmental conditions, a more accurate synchronization of the multiple cameras' focus positions can be achieved. | 10-11-2012 |
20120262600 | WHITE BALANCE OPTIMIZATION WITH HIGH DYNAMIC RANGE IMAGES - Systems and methods to improve the white balance of a high dynamic range image are disclosed. In a particular embodiment, an imaging device includes a camera sensor and a processor, the processor configured to capture a lighter image and a darker image of a scene. The processor is then configured to white balance the lighter image based on the lighter regions of the image, and to white balance the darker image based on the darker regions of the image. The two images can then be combined to produce a final image. | 10-18-2012 |
20130038701 | SYSTEMS AND METHODS TO CAPTURE A STEREOSCOPIC IMAGE PAIR - Described are a system, apparatus, and method to capture a stereoscopic image pair using an imaging device with a single imaging sensor. Particularly, discussed are systems and methods for capturing a first and second image through an image sensor, determining a vertical and horizontal disparity between the two images, and applying corrections for geometric distortion, vertical disparity, and convergence between the two images. Some embodiments contemplate displaying a directional indicator before the second image of the stereoscopic image pair is captured. By displaying a directional indicator, a more optimal position for the second image of the stereoscopic image pair may be found, resulting in a higher quality stereoscopic image pair. | 02-14-2013 |
20130083002 | METHODS AND APPARATUS FOR CONDITIONAL DISPLAY OF A STEREOSCOPIC IMAGE PAIR - Apparatus and methods for conditional display of a stereoscopic image pair on a display device are disclosed. Particularly, some implementations include receiving a first image and a second image, determining a vertical disparity between the first image and the second images, and displaying a stereoscopic image pair if the vertical disparity is below a threshold. Some implementations provide for correcting the vertical disparity by generating at least one corrected image, and generating the stereoscopic image pair based on the corrected image. Some implementations may evaluate the quality of the stereoscopic image pair, and display either a two dimensional image or the stereoscopic image pair based on the evaluation. | 04-04-2013 |
20130113827 | HANDS-FREE AUGMENTED REALITY FOR WIRELESS COMMUNICATION DEVICES - This disclosure relates to techniques for providing hands-free augmented reality on a wireless communication device (WCD). According to the techniques, an application processor within the WCD executes an augmented reality (AR) application to receive a plurality of image frames and convert the plurality of image frames into a single picture comprising the plurality of image frames stitched together to represent a scene. The WCD executing the AR application then requests AR content for the scene represented in the single picture from an AR database server, receives AR content for the scene from the AR database server, and processes the AR content to overlay the single picture for display to a user on the WCD. In this way, the user may comfortably look at the single picture with the overlaid AR content on a display of the WCD to learn more about the scene represented in the single picture. | 05-09-2013 |
20130242120 | MOTION-STATE CLASSIFICATION FOR CAMERA APPLICATIONS - A mobile device uses data from one or more sensors to determine a user context, such as a motion state of the user, and adjusts at least one camera feature selected form a group consisting of continuous auto-focus, auto-white balance, video encode quality, frame rate, search range used for focusing, and exposure mode based on the user context. The user context may include, e.g., at least one of panning, walking, standing, sitting, and traveling in a moving vehicle. | 09-19-2013 |
20140029837 | INERTIAL SENSOR AIDED INSTANT AUTOFOCUS - The disclosure is directed to creating an inertial sensor aided depth map of a scene. An embodiment of the disclosure captures at least a first image and a second image during movement of a device caused by a user while framing or recording the scene, compensates for rotation between the first image and the second image, calculates an amount of translation of the device between the first image and the second image, calculates a pixel shift of a plurality of key points of the first image and the second image, and estimates a depth to one or more of the plurality of key points of the first image and the second image. | 01-30-2014 |