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Image capture device and image capture method

A technology of an imaging device and an imaging element, which is applied in the directions of image communication, television, optics, etc., and can solve the problem that the subject image cannot be generated with high precision.

Inactive Publication Date: 2015-06-24
FUJITSU LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is, there are cases where the subject image cannot be generated with high precision in the conventional imaging device using the WFC technology.

Method used

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  • Image capture device and image capture method
  • Image capture device and image capture method
  • Image capture device and image capture method

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Experimental program
Comparison scheme
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Embodiment 1

[0054] First, use figure 1 , the imaging device according to Embodiment 1 will be described. figure 1 It is a block diagram showing a configuration example of the imaging device according to the first embodiment. Such as figure 1 As shown, the imaging device 1 according to the first embodiment includes an optical system 10 , an imaging element 20 , and a generation unit 30 . The optical system 10 makes the light emitted from the subject of the imaging target enter the imaging element 20 . Specifically, the optical system 10 has lenses 11 and 12 and an optical wavefront modulation element 13 .

[0055] The lens 11 refracts light emitted from a subject. The light wave front modulation element 13 disperses the light beam of the subject irradiated through the lens 11 into three or more directions, and makes the dispersed light beam enter the imaging element 20 through the lens 12 . For example, the light wave front modulation element 13 forms an image of a light beam of an...

Embodiment 2

[0059] Next, in Embodiment 2, an example of an imaging device having PSFs dispersed in three directions will be described. Hereinafter, a configuration example of the imaging device according to the second embodiment, a depth-of-field characteristic of the imaging device according to the second embodiment, and an imaging processing procedure performed by the imaging device according to the second embodiment will be described in order.

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Abstract

An imaging apparatus includes an optical wavefront coding element that performs a dispersion of a light flux emitted from a subject into three or more directions, an imaging element that receives the light flux dispersed by the optical wavefront coding element to acquire a subject preimage, and a generation unit that generates an image of the subject by applying a process corresponding to the dispersion to the subject preimage.

Description

technical field [0001] The present invention relates to an imaging device and an imaging method. Background technique [0002] Imaging devices such as cameras installed in digital cameras and mobile phones generally use two-dimensional imaging elements such as CCD (Charge Coupled Device) and CMOS (Complementary Metal Oxide Semiconductor: Complementary Metal Oxide Semiconductor). Imaging is performed to perform imaging processing. In recent years, a technique called WFC (Wavefront Coding: Wavefront Coding) may be used in such imaging devices. [0003] Here, use Figure 10 , an imaging device employing the WFC technology will be described. Figure 10 It is a diagram schematically showing an optical system of a conventional imaging device employing WFC technology. Such as Figure 10 As shown, the conventional imaging device has an optical system 90 and an imaging element 95 . In the optical system 90 are arranged lenses 91 to 93 and a phase plate 94 as an optical wavefront m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/225H04N5/232
CPCG02B2207/125G02B27/0075H04N23/81H04N23/80H04N23/959
Inventor 平井由树雄
Owner FUJITSU LTD