Patent
Apparatus and method for eliminating imaging sensor line noise
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TLDR
In this paper, a high frequency component detector detects the high frequency components of the target pixel using Laplacian filter based on each pixel and each of the pixels immediately adjacent to said target pixel are input.Abstract:
A noise elimination apparatus and method enable effective elimination of noise on each line in an image captured by a CCD provided with a Bayer-type color filter. A graduation device obtains the quantity of graduation for a target picture element by obtaining the difference between the mean value of the value of the target pixel and the value of a pixel around the target pixel and the value of the target pixel. A high frequency component detector detects the high frequency component of the target pixel using Laplacian filter based upon the target pixel and each of the pixels immediately adjacent to said target pixel are input. A high frequency component can be detected without being influenced by noise on each line by using a filter based upon each of the pixels immediately adjacent to said target pixel. Noise on each line can be effectively eliminated by adding the optimum quantity of graduation based upon the absolute value of the high frequency component detected by the high frequency component detector to the value of the target pixel.read more
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1-chip color video camera for generating inter-pixel color signal component by interpolating primary color signals from neighboring pixels
TL;DR: A 1-chip color video camera has a color separation circuit for processing signals obtained from a solid-state image sensor wherein primary color filters of R(red), G and B(blue) are arranged mosaic-wise for respective pixels.
Patent
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TL;DR: A color image sensing device comprises an image sensor having pixels of the offset sampling structure in which the horizontal pitch is P H, the vertical pitch is 2P V and the horizontal offset amount is PH /2, and a color filter array comprising three or four types of color filters provided in one-to-one relation to the image sensor.