Unlock instant, AI-driven research and patent intelligence for your innovation.

Color imaging element and imaging device

A technology of color imaging element and photoelectric conversion element, which is applied to the parts of color TV, color TV, electrical components, etc., can solve the problems of complex demosaic algorithm processing, achieve simple signal processing, simplify post-processing, improve The effect of reproduction accuracy

Active Publication Date: 2015-03-11
FUJIFILM CORP
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] The color imaging element described in Patent Document 1 has the following problem: Since the arrangement of the color filters is random, it is necessary to optimize each random pattern when performing the demosaic algorithm processing in the latter stage, and the demosaic algorithm processing becomes complex

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Color imaging element and imaging device
  • Color imaging element and imaging device
  • Color imaging element and imaging device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0066] [Overall structure of digital camera]

[0067] figure 1 It is a block diagram of a digital camera 9 (imaging device) having the color imaging element of the present invention. The digital camera 9 roughly includes a photographing optical system 10, a color imaging element 12, a photographing processing unit 14, an image processing unit 16, a driving unit 18, a control unit 20, and the like.

[0068] The photographing optical system 10 forms a subject image on the imaging surface of the color imaging element 12. The color imaging element 12 is a so-called single-plate color imaging element having a plurality of pixels and a color filter provided above the light-receiving surface of each pixel. The plurality of pixels are arranged two-dimensionally on the imaging surface of the color imaging element 12 The photoelectric conversion element on the structure. Here, “~up” and “upward” refer to the direction of the side where the subject light enters the imaging surface of the c...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention provides the following: a color imaging element whereby the reproduction characteristics of a high-frequency image signal during a demosaicing process can be improved and subsequent processes can be simplified relative to conventional color imaging elements; and an imaging device using such a color imaging element. A color filter array (22) comprises a 3×3 basic array pattern (P1) laid out so as to repeat horizontally and vertically. Said basic array pattern (P1) comprises the following: a green filter array (25) comprising green filters (23G) laid out horizontally; and first and second RGB filter arrays (26, 27) comprising red, green, and blue filters (23R, 23G, 23B) laid out horizontally. The proportion of green pixels is made higher than either the proportion of red pixels or the proportion of blue pixels. Each horizontal, vertical, and diagonal filter line of the color filter array (22) contains green filters (23G). One of the vertical filter lines of the basic array pattern (P1) contains both red and blue filters (23R, 23B), and the other filter lines each contain either a red filter (23R) or a blue filter (23B).

Description

Technical field [0001] The present invention relates to a single-plate color imaging element in which color filters are arranged on pixels, and an imaging device having such a color imaging element. Background technique [0002] In a single-panel color imaging element, each pixel is provided with a monochrome color filter, so each pixel has only monochrome color information. Therefore, the output image of the single-plate color image sensor is a RAW image (mosaic image), so a multi-channel image is obtained by interpolating pixels with missing colors based on surrounding pixels (demosaic processing). What becomes a problem in this case is the reproduction characteristics of high-frequency image signals. [0003] The primary color Bayer arrangement, which is the color arrangement of the color filters most widely used in single-plate color imaging elements, arranges green (G) pixels in a checkerboard pattern, and arranges red (R) and blue ( B), therefore, the reproduction accuracy ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H04N9/07H01L27/14H04N9/03H04N23/12H04N25/00
CPCH04N9/045H04N23/843H04N25/134H04N25/135H04N25/133H01L27/14621
Inventor 田中诚二林健吉
Owner FUJIFILM CORP