Image processing device, image processing method, program, and imaging device

A technology for image processing devices and camera devices, which is applied to image signal generators, etc., and can solve problems such as increased processing load and increased deterioration of image quality

Inactive Publication Date: 2008-12-31
ACUTELOGIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is a problem that the processing load increases
In addition, since additional interpolation is performed on the image generated by interpolation, there is also a problem that the image quality deterioration of the generated image increases.

Method used

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  • Image processing device, image processing method, program, and imaging device
  • Image processing device, image processing method, program, and imaging device
  • Image processing device, image processing method, program, and imaging device

Examples

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no. 1 Embodiment approach

[0057] Hereinafter, an embodiment of the present invention will be described based on the drawings. figure 1 It is a diagram showing a configuration example of the color imaging device 100 implementing the first embodiment of the image processing device according to the present invention. The color imaging device 100 of this embodiment is configured to include an imaging optical system 110, a single-plate color image sensor 120, an AD conversion unit 130, a de-splicing unit 140, a vision correction unit 150, a compression unit 160, and a recording unit 170. Among them, the de-mosaic unit 140 corresponds to the image processing device of the present invention.

[0058] The single-plate color image sensor 120 has: a color filter array 121 that decomposes imaging light output from the imaging optical system 110 into predetermined color components; and photoelectrically converts the imaging light that has passed through the color filter array 121 to generate pixels Signal imaging ele...

no. 2 Embodiment approach

[0107] Hereinafter, a second embodiment of the present invention will be described based on the drawings. Figure 8 It is a diagram showing a configuration example of a color imaging device 100' that implements the second embodiment of the image processing device according to the present invention. Such as Figure 8 As shown, the color imaging device 100' of the second embodiment is configured to have an imaging optical system 110, a single-plate color image sensor 120, an AD conversion unit 130, a de-splicing unit 140', a vision correction unit 150, a compression unit 160, and recording部170. Among them, the de-mosaic unit 140' is equivalent to the image processing device of the present invention. In addition, in Figure 8 In, marked with figure 1 The parts with the same reference numerals shown have the same function, and therefore, repeated descriptions are omitted here.

[0108] In the second embodiment, the photographed subject is imaged on the imaging element 122 of the sing...

no. 3 Embodiment approach

[0149] Next, a third embodiment of the present invention will be described based on the drawings. The configuration of the color imaging device implementing the third embodiment of the image processing device according to the present invention is the same as Figure 8 the same. In addition, the functional structure of the disassembly unit 140` is the same as Picture 9 the same. However, the processing content of the coordinate conversion unit 142' included in the de-mosaic unit 140' is different from that of the second embodiment. Hereinafter, the description will be focused on the different parts from the second embodiment.

[0150] In the third embodiment, the coordinate conversion unit 142' uses color difference coefficients of different values ​​according to the color planes for each of the plurality of color planes decomposed by the color plane decomposition unit 141, and the image representing the color image The deformed image deformation coefficient is calculated based on...

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Abstract

The invention provides an image processing device, method, program and an imaging device. The image processing device includes: a coordinate conversion unit (142) which calculates a corresponding sampling coordinate on a color mosaic image corresponding to a pixel position of a color image when a deformation process is performed, according to the pixel position of the color image; a sampling unit (143); a sampling unit (143) which interpolates-generates a pixel value in a sampling coordinate for each of color planes obtained by decomposing the color mosaic image; and a color generation unit (144) which generates a color image by synthesizing interpolation values of the respective color planes. Each pixel value of a color image subjected to a deformation process is obtained as a pixel value of the sampling coordinate from the color mosaic image by interpolation calculation, thereby realizing the color interpolation process for generating a color image from the color mosaic image and a deformation process of the color image by one interpolation calculation.

Description

Technical field [0001] The present invention relates to an image processing device, an image processing method, a program, and an imaging device, and more particularly to a color mosaic image obtained by using a single-plate color imaging element to interpolate brightness information of multiple colors for all pixels An image processing device, an image processing method, a program, and an imaging device for de-mosaic processing to generate color images. Background technique [0002] In recent years, digital cameras are steadily spreading to consumers. One of the reasons is as follows: the cost of digital cameras continues to fall, and the price has reached a range that many consumers can afford. In order to keep costs down, so-called single-plate imaging elements are used in many digital cameras. In a single-plate digital camera, only one imaging element is used to capture the color information of each pixel in a color image. [0003] In a single-plate image sensor, each pixel h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N9/04
Inventor 沢田保宏张先吉增田孝
Owner ACUTELOGIC
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