| 摘要 |
PROBLEM TO BE SOLVED: To improve an usage efficiency of an incident ray volume while maintaining resolution of a photographed image.SOLUTION: A number of light detection cells are arranged vertically and horizontally, red spectral elements D (R) which lead red light to left and right cells are arranged on some of the cells and blue spectral elements D (B) which lead blue light to the left and right cells are arranged on another cells. An original image in which an energy amount of light detected by each light detecting cell is set as a pixel value of each pixel is created, on which is defined a block K1 including a 2×2 pixel. When all wavelength components are set as W, a red color component is set as R, and a blue color component is set as B, of light before being spectrally split which should enter each cell, a pixel value of a cell C1 is W+R, a pixel value of a cell C2 is W-R, a pixel value of a cell C3 is W-B, and a pixel value of a cell C4 is W+B, so that representative pixel values of three original color of a block K1 can be determined based on the pixel values. Blocks are shifted by one pixel vertically and horizontally so as to create a photographed image having the same resolution as resolution of the light detection cells.SELECTED DRAWING: Figure 3 |
