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Color Imaging Element

A technology of color imaging elements and photoelectric conversion elements, which is applied to color TV parts, electrical components, color TVs, etc., can solve problems such as resolution reduction, simplify post-processing, improve reproduction accuracy, and suppress aliasing Effect

Active Publication Date: 2014-09-03
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in this method, although the coloration caused by the foldback of the high-frequency signal can be reduced, there is a problem that the resolution is lowered among the disadvantages.

Method used

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Experimental program
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no. 1 approach

[0079] figure 2 and image 3 It is a figure showing the first embodiment of the single-plate type color imaging element of the present invention, figure 2 The pixel arrangement of the pixels provided in the color imaging element 12 is shown, image 3 A color filter arrangement of color filters is shown.

[0080] Such as figure 2 As shown, the color imaging element 12 includes: a plurality of pixels composed of photoelectric conversion elements 22 arranged (two-dimensionally arranged) in the horizontal direction and vertical direction; image 3 Color filters for the color filter array shown. Any one of color filters of the three primary colors of RGB (hereinafter referred to as R filter, G filter, and B filter) 23R, 23G, and 23B is disposed on each pixel. Hereinafter, the pixel on which the R filter 23R is arranged is called "R pixel", the pixel on which the G filter 23G is arranged is called "G pixel", and the pixel on which the B filter 23B is arranged is called "B pixe...

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Abstract

A single-plate color imaging element configured by disposing color filters on pixels formed with photoelectric conversion elements, where the first filters are arranged along at least a diagonal line of the sub arrays, one or more of the second filters corresponding to each color of the second color are arranged in the horizontal and vertical directions of the array of the color filters in a basic array pattern, the basic array pattern being repeatedly arranged in the horizontal direction and the vertical direction in the array of the color filters, and corresponding to arbitrary 2N×2N pixels included in the array of the color filters, and the M is set to such a value that one or more of the first filters are arranged in horizontal, vertical, diagonal upper right and diagonal lower right directions of the array of the color filters.

Description

technical field [0001] The present invention relates to a color imaging device, and more particularly, to a color imaging device capable of reducing the occurrence of color moiré and achieving high resolution. Background technique [0002] In a single-plate type color imaging device, since a monochrome color filter is provided on each pixel, each pixel has only monochrome color information. Therefore, the output image of a single color image sensor is a RAW image (mosaic image), and a multi-channel image is obtained by interpolating missing color pixels from surrounding pixels (demosaic processing). In this case, the problem is the reproduction characteristics of high-frequency image signals. Compared with black-and-white imaging elements, color imaging elements are more prone to aliasing in captured images, so the occurrence of color moiré (false colors) is suppressed. In addition, it is an important subject to widen the reproduction bandwidth to achieve high resolution. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N9/07H01L27/14H04N23/12
CPCH01L27/14621H04N9/646H04N9/07H04N23/843H04N23/12H04N25/134
Inventor 田中诚二河合智行林健吉
Owner FUJIFILM CORP
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