Abstract: A color constancy method and system include dividing an image into a plurality of sub-images and applying a plurality of color constancy algorithms to each of the sub-images. The outputs of each of the color constancy algorithms are analyzed for each of the sub-images to determine which of the color constancy algorithms give inconsistent results across the sub-images. The influence of the outputs of the algorithms providing inconsistent results is adjusted to decrease their influence (e.g. effect or weight) with respect to the outputs of algorithms providing consistent results. The outputs from the plurality of color constancy algorithms are combined based upon the adjustment of the outputs.

Abstract: A motion sensing method for an object includes: receiving a distance detection result which is used for indicating distance detection information of the object in a neighborhood of a motion sensing apparatus; and determining whether to perform optical motion sensing upon the object of the neighborhood according to the distance detection result.

Abstract: In one implementation, an image sensor is calibrated by generating a plurality of spectral characterizations for the image sensor and defining a plurality of color corrections for the image sensor based on the plurality of spectral characterizations and a reference spectral characterization. Each spectral characterization from the plurality of spectral characterizations is associated with an image window of the image sensor. Each color correction from the plurality of color corrections is associated with an image window of the image sensor.

Abstract: In one implementation, an image sensor is calibrated by determining a spectral characterization for each image window of an image sensor, correlating the spectral characterization for each image window of the image sensor with a spectral property of a target illuminant, and generating a scale factor for each image window of the image sensor. The scale factor for each image window of the image sensor is generated based on the correlating.

Abstract: Systems, methods, and other embodiments associated with producing spatially varying spectral response calibration data are described. One example method includes controlling a digital camera to capture characteristic data arrays from light sensors in the digital camera in response to the digital camera being exposed to light stimuli from a multi-spectral reference display. The data arrays will be acquired multiple times at multiple locations in multiple stimuli provided from the multi-spectral reference display. The method also includes controlling a calibration logic to manipulate characteristic data arrays to produce spatially varying spectral response calibration data as a function of using characteristic data arrays and known wavelengths of the light in light stimuli. The method may also include providing the spatially varying spectral response calibration data to a downstream consumer (e.g., correction process, quality control process), displaying the data, or storing the data.

Abstract: A heat conductive plate structure includes a base metal plate having a seating portion; a coupling layer disposed above the base metal plate around the seating portion; an electric conduction layer disposed above the coupling layer around the seating portion to define a clearance therebetween; a coupling film disposed above the electric conduction layer and the seating portion to define an inner clearance in communication with the clearance of the electric conduction layer and an outer clearance surrounding the inner clearance; a non-weldable material for inserting into the inner clearance and the outer clearance in the coupling film; a heat conduction member disposed on a central portion of the coupling film; an electric conduction member disposed above the coupling film to surround the heat conduction member from an exterior thereof; and a high power element mounted above so as to be in direct contact with the heat conduction member and the electric conduction member simultaneously.

Abstract: A color constancy method and system include dividing an image into a plurality of sub-images and applying a plurality of color constancy algorithms to each of the sub-images. The outputs of each of the color constancy algorithms are analyzed for each of the sub-images to determine which of the color constancy algorithms give inconsistent results across the sub-images. The influence of the outputs of the algorithms providing inconsistent results is adjusted to decrease their influence (e.g. effect or weight) with respect to the outputs of algorithms providing consistent results. The outputs from the plurality of color constancy algorithms are combined based upon the adjustment of the outputs.

Abstract: Systems and methods for camera sensor correction are disclosed. In an exemplary embodiment, a method may include sampling a spectral response for a plurality of color channels at different spatial locations on a sensor. The method may also include applying a 4×4 color correction matrix at the different spatial locations in an image captured by the sensor. The method may also include converting the spectral response at each spatial location to match the spectral response of the sensor at any one location on the image.

Abstract: A method is provided for correcting a captured image. The method comprises determining an illuminant for the captured image. When the determined illuminant matches a reference illuminant the image is corrected with a reference inversion mask. When the determined illuminant matches a first extreme illuminant, the reference inversion mask is modified using a first set of reference point ratios that corresponds to the first extreme illuminant and the image is corrected with the modified inversion mask. When the determined illuminant does not match the first extreme illuminant, a set of reference point ratios are calculated for the determined illuminant. The reference inversion mask is modified using the calculated set of reference point ratios and the image is corrected with the modified inversion mask.

Abstract: A heat conductive plate structure includes a base metal plate having a seating portion; a coupling layer disposed above the base metal plate around the seating portion; an electric conduction layer disposed above the coupling layer around the seating portion to define a clearance therebetween; a coupling film disposed above the electric conduction layer and the seating portion to define an inner clearance in communication with the clearance of the electric conduction layer and an outer clearance surrounding the inner clearance; a non-weldable material for inserting into the inner clearance and the outer clearance in the coupling film; a heat conduction member disposed on a central portion of the coupling film; an electric conduction member disposed above the coupling film to surround the heat conduction member from an exterior thereof; and a high power element mounted above so as to be in direct contact with the heat conduction member and the electric conduction member simultaneously.

Abstract: In a method of digital image compression, the spatial frequency content of a digital image is characterized using a relatively sparse sampling of data blocks from the image, and a quantization table is constructed based on the characterization of the spatial frequency content.

Abstract: A method and an apparatus of processing a plurality of color components of a pixel are provided. The method includes: finding a maximum value of the color components; determining a scaling factor and an adjusting value according to the maximum value; and adjusting each of the color components according to a multiplication utilizing the scaling factor and an addition utilizing the adjusting value. The apparatus includes: a maximum value determining module, for finding a maximum value of the color components; a first adjustment control module, coupled to the maximum value determining module, for determining a scaling factor and an adjusting value according to the maximum value; and an adjusting module, coupled to the first adjustment control module, for adjusting each of the color components according to a multiplication utilizing the scaling factor and an addition utilizing the adjusting value.

Abstract: Consistent white balance between successive similar digital images of a scene is provided by comparing the digital images and, if they are sufficiently similar, maintaining substantially the same white balance setting in a second digital image as in a first digital image. The method is applicable to, for example, mixed-illuminant situations and may be implemented in both still-capture and video digital imaging devices.

Abstract: Methods for improving image quality of a digital image are disclosed herein.

Abstract: A method is provided for correcting a captured image. The method comprises determining an illuminant for the captured image. When the determined illuminant matches a reference illuminant the image is corrected with a reference inversion mask. When the determined illuminant matches a first extreme illuminant, the reference inversion mask is modified using a first set of reference point ratios that corresponds to the first extreme illuminant and the image is corrected with the modified inversion mask. When the determined illuminant does not match the first extreme illuminant, a set of reference point ratios are calculated for the determined illuminant. The reference inversion mask is modified using the calculated set of reference point ratios and the image is corrected with the modified inversion mask.

Abstract: Consistent white balance between successive similar digital images of a scene is provided by comparing the digital images and, if they are sufficiently similar, maintaining substantially the same white balance setting in a second digital image as in a first digital image. The method is applicable to, for example, mixed-illuminant situations and may be implemented in both still-capture and video digital imaging devices.

Abstract: Methods for improving image quality of a digital image are disclosed herein.

Abstract: In a method of digital image compression, the spatial frequency content of a digital image is characterized using a relatively sparse sampling of data blocks from the image, and a quantization table is constructed based on the characterization of the spatial frequency content.