Imaging device and imaging apparatus
First Claim
1. An imaging device having an imaging pixel array formed as a two-dimensional periodic array of 6-pixel arrays as unit arrays, wherein of the six pixels, arranged from a 1-st pixel to a 6-th pixel, constituting each unit array, the 1-st to 3-rd pixels have different color characteristics, and the 4-th to 6-th pixels are different in the sensitivity from and the same in color characteristic as the 1-st to 3-rd pixels, respectively.
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Abstract
An imaging device having an imaging pixel array formed as a two-dimensional periodic array of N-pixel (N being 5 or a greater natural number) arrays as unit arrays is disclosed. Also, the color imaging apparatus comprises a CCD imaging device, which have pixels arranged in a 6-color random color coding array. The array meets an array prescription that the pixels adjacent to the four sides and the four corners of a pixel number attention includes pixels of five different colors other than the color of the pixel under attention at least one pixel each. The 6-color random color coding array has six colors with two thereof constituting each of three original colors while being different in sensitivity. The color imaging apparatus further comprises a digital processing circuit for executing a color separating process on output signal of the color imaging device on the basis of the random color coding array, and a memory means constituted by a masked ROM or an EEPROM for storing data concerning the random coding array.
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Citations
15 Claims
- 1. An imaging device having an imaging pixel array formed as a two-dimensional periodic array of 6-pixel arrays as unit arrays, wherein of the six pixels, arranged from a 1-st pixel to a 6-th pixel, constituting each unit array, the 1-st to 3-rd pixels have different color characteristics, and the 4-th to 6-th pixels are different in the sensitivity from and the same in color characteristic as the 1-st to 3-rd pixels, respectively.
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5. An imaging apparatus comprising an imaging device having an imaging pixel array formed as a two-dimensional periodic array of unit arrays each constituted by six pixels, arranged from a 1-st pixel to a 6-th pixel, the 1-st to 3-rd pixels having different color characteristics, the 4-th to 6-th pixels being different in the sensitivity from and the same in the color characteristic as the 1-st to 3-rd pixels, respectively, and an image signal generating means for generating an image signal having a predetermined form according to the 1-st to 6-th pixel data signals obtained in correspondence to the 1-st to 6-th pixels in the imaging device, wherein:
the different sensitivities of the 1-st and 4-th pixels, as well as the 2-nd and 5-th pixels and the 3-rd and 6-th pixels in the imaging device are set such that the effective luminance range of the 1-st, as well as 2-nd and 3-rd pixel data signals have common range with the 4-th, as well as 5-th and 6-th pixel data signals, respectively. - View Dependent Claims (6, 7, 8, 9)
- 10. A color imaging device having a pixel group of a plurality of pixels constituted by photoelectric converting elements, wherein the pixels are arranged in a 6-color random color coding array meeting an array prescription that the pixels are arranged in a 6-color random color coding array meeting a requirement that the pixels adjacent to the four sides and the four corners of a pixel under attention includes pixels of five different colors other than the color of the pixel under attention at least one pixel each.
Specification