Patent ID: 7333137
Filing Date: 2008-02-19
Classification: H04N

Abstract:
1. A camera signal processing apparatus comprising: an interpolated pixel data generating means for interpolating pixel data in at least two directions based on a position of said pixel data and/or pixel data around said position, said pixel data being generated based on an imaging signal coming from a solid state image sensor in which an imaging light enters through a color filter having a different spectral characteristic for each pixel, thereby separately generating interpolated pixel data in said at least two directions; an edge processing means for computing a limit value for each of said interpolated pixel data in accordance with a comparison results, wherein the comparison result is function of a middle two pixel data when a plurality of pixel data around each of the interpolated pixel data generated by said interpolated pixel data generating means is ranked by size; a correlation detecting means for detecting a correlation value indicative of a degree of correlation in each of said at least two directions of said interpolated pixel data generated by said interpolated pixel data generating means; a weighting means for weighting said interpolated pixel data in each of said at least two directions generated by said interpolated pixel data generating means with said correlation value detected by said correlation detecting means in each of said at least two directions and adding together the weighted interpolated pixel data in all of said at least two directions to generate interpolated pixel data; and an image generating means for generating an image based on said interpolated pixel data generated by said interpolated pixel data generating means; wherein said interpolated pixel data generating means generates interpolated pixel data for said pixel data based on said limit value computed by said edge processing means and said image generating means generates said image based on the generated interpolated pixel data.