Sony Mobile Communications Inc.

Sony Corporation

Håkan Grahn

Jim Rasmusson

Stefan Petersson

Anders Isberg

Henrik Sundström

Jan Kasper Martinsen

Techniques for demosaicing of digital color images are improved by estimating and using the structural instability in the neighborhood of the respective pixel. The structural instability for a color is given by the range of the color values for this color in a first local region around each current pixel. A method is executed by a device for interpolating a missing color at the current pixel in a color image produced by a digital image sensor having a color filter array, the current pixel having a current color that differs from the missing color. The method comprises: computing () a range value for one of: pixels having the missing color and pixels having the current color; computing () an interpolation value at the current pixel as a function of the range value and color values for pixels having the missing color within a second local region around the current pixel; and setting the missing color at the current pixel to the interpolation value.

Method and device for demosaicing of color images

The present disclosure generally relates to the field of demosaicing an image captured by an image sensor including a color filter array, and more specifically relate to such a demosaicing operation using the GPU, shaders of the GPU and built-in rasterization function of the GPU.

Methods, devices and computer program products for demosaicing an image captured by an image sensor comprising a color filter array

A processor device executes program code in one or more threads. The processor device detects a call of a function in one of the threads and executes the function in a further thread. Further, the processor device performs a selection between saving a state of the processor device when starting execution of the function in the further thread and not saving the state of the processor device when starting execution of the function in the further thread. In response to a conflict related to the execution of the function in the further thread, the processor device may perform a rollback to a last saved state of the processor device and execute the function in the thread in which it was called.

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Karlskrona, Sweden

Håkan Grahn