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Imaging device

A technology for a camera device and a camera area, which is applied in image communication, solid-state image signal generators, televisions, etc., can solve problems such as missing images, and achieve the effect of improving false color problems.

Active Publication Date: 2009-03-11
PANASONIC CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] The present invention is to solve such a problem, and the purpose is to provide a compound eye optical system that eliminates the existing problem in the parallax of each color information—that is, eliminates the problem that the image of the peripheral part of the image is missing due to the parallax. camera device

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no. 1 Embodiment approach

[0051] Next, a first embodiment of the present invention will be described with reference to the drawings.

[0052] FIG. 1 is a diagram showing a schematic configuration of an imaging device according to a first embodiment of the present invention. In FIG. 1 , 1 to 4 are imaging optical systems each including at least one lens. Image sensors 5 to 8 are provided corresponding to the imaging optical systems 1 to 4 , respectively. The same subject is imaged on the respective image sensors 5 to 8 through the imaging optical systems 1 to 4 .

[0053] In this embodiment, in order to capture a color image, the image sensors 5 and 7 arranged on the diagonal among the image sensors 5 to 8 capture the green wavelength band, the image sensor 6 captures the red wavelength band, and the image sensor 8 captures the blue wavelength band. . This wavelength selectivity can be achieved by making the image sensor wavelength-dependent, or by inserting a wavelength-selective filter (color filte...

no. 2 Embodiment approach

[0094] Next, a second embodiment of the present invention will be described with reference to the drawings.

[0095] In the first embodiment described above, an area (offset area) in which image color information may be missing is determined based on the shortest subject distance, and all pixel information in the offset area is discarded when generating a composite image. On the other hand, in the second embodiment to be described below, it is judged whether there is no loss of actual color information in the misplaced area when the image is synthesized, and the pixels of the part where the color information is not lost are output as an image. That is, in the first embodiment, the number of pixels output as an image (the number of pixels in the output pixel area) is small, but in the second embodiment, the number of pixels can be suppressed from decreasing.

[0096] For this reason, as shown in FIG. 8 , the imaging device of the second embodiment includes a color information m...

no. 3 Embodiment approach

[0114] Next, a third embodiment of the present invention will be described with reference to the drawings.

[0115] The imaging device of this embodiment differs from the first embodiment in that by providing imaging areas of image sensors of different sizes, the output pixel area can be increased as much as possible without performing complicated image processing as in the second embodiment. number of pixels.

[0116] 13 is a plan view showing the size of the imaging area of ​​each of the image sensors 5 to 8 viewed from the side of the imaging optical systems 1 to 4 . In addition, the same code|symbol is attached|subjected to the part which has the same function as 1st Embodiment or 2nd Embodiment. As in the first embodiment, the image sensor 5 outputs the reference image G0, the image sensor 6 outputs the image R, the image sensor 7 outputs the image G1, and the image sensor 8 outputs the image B.

[0117] In addition, in FIG. 13, 5c is a point where the optical axis dete...

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Abstract

The generation of a false color at the periphery is prevented in an imaging device including a compound eye optical system in which parallax occurs for each color information. An imaging device that includes a plurality of lens portions, a plurality of imaging regions each including a light receiving surface that is substantially perpendicular to the optical axis direction of each of the lens portions, and outputting an imaging signal, and a parallax computing portion that uses any one of the plurality of imaging signal as a reference imaging signal (G0), and computes a parallax amount of other imaging signals relative to the reference imaging signal (G0), wherein a composite image is generated by correcting and combining the plurality of imaging signals based on an effective pixel signal obtained by deleting a pixel signal obtained from pixels of a region (dminx in the x direction, dminy in the y direction) that may contain image omission resulting from parallax in the imaging signal other than the reference imaging signal (G0), and on the parallax amount.

Description

technical field [0001] The present invention relates to an imaging device which synthesizes a high-precision image by performing parallax correction on a plurality of images obtained by using a plurality of imaging optical systems, and calculates a distance to an object based on the obtained parallax amount. Background technique [0002] In recent years, as the demand for thin digital cameras has increased, imaging devices have been proposed that use multiple lenses and image sensors to photograph a single subject, and combine the images obtained by them to obtain a single high-quality two-dimensional image. . [0003] An example of such a conventional imaging device will be described with reference to FIG. 17 . In the prior art imaging device shown in FIG. 17(a), 101 is an imaging lens made integrally with a mold or the like. The imaging lens 101 has an R-wavelength lens 101a, a G-wavelength lens 101b, and a B-wavelength lens 101c, and forms a subject image on each of thr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/225H04N23/13H04N23/15H04N25/00
CPCH04N9/093H04N9/045H04N25/41H04N23/84H04N23/15H04N5/265H04N5/262H04N23/00
Inventor 今田胜巳
Owner PANASONIC CORP
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