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Imaging apparatus, imaging method, and camera system

An imaging device and imaging technology, applied in parts of TV systems, image communication, TV, etc., can solve problems such as difficult to determine the color of the subject

Inactive Publication Date: 2013-10-23
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in images acquired by infrared radiation, although a clear image is obtained during the daytime, a monochrome image in which it is difficult to determine the color of a subject is obtained

Method used

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  • Imaging apparatus, imaging method, and camera system
  • Imaging apparatus, imaging method, and camera system
  • Imaging apparatus, imaging method, and camera system

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0036] [Example of the configuration of the entire camera system]

[0037] figure 1 is a block diagram illustrating an example of the configuration of the camera system according to the first embodiment of the present disclosure.

[0038] A camera system 1 according to an example of this embodiment includes a camera unit 10 (an example of an imaging device) and a projector unit 20 . Like a general camera, the camera unit 10 includes, for example, a lens 11 , an imaging device 12 , a preprocessing unit 13 , a signal processing unit 14 , a control unit 16 , and a nonvolatile memory 17 .

[0039] The lens 11 collects light rays from a subject, and forms an image on an imaging surface of the imaging device 12 . The imaging device 12 is an image sensor such as, for example, a charge-coupled device (CCD) in which pixels each having a photoelectric conversion device for performing photoelectric conversion are arranged two-dimensionally, and is provided with For example, a color se...

no. 2 example

[0109] In the first embodiment, as means for extracting color information about each pixel of an infrared image from a color image, the infrared image is region-divided, and the reflected light of the laser pattern of the pixel of interest in the closest region is referred to Strength of. The second embodiment shows an example in which a color image is reduced and color information is extracted using only the reduced color image. Here, reduction in the number of pixels to configure an image is referred to as image reduction.

[0110] Figures 10A to 10C is an explanatory diagram illustrating processing for extracting color information using a reduced image according to the second embodiment of the present disclosure.

[0111] First, the color image acquisition unit 14 c (an example of an image reduction unit) performs processing for averaging pixel values ​​of a plurality of pixels 41 arranged in a matrix using a plurality of adjacent pixels for the captured color image 40A....

no. 3 example

[0118] In the first and second embodiments, a fixed pattern is used as the laser pattern projected when capturing a color image. However, in the third embodiment, it is possible to extract colors from the entire screen by performing an operation of scanning a laser pattern.

[0119] Figure 11 is an explanatory diagram illustrating a camera system that extracts color from the entire screen by scanning a laser pattern over the entire viewing angle area according to the third embodiment of the present disclosure. in addition, Figure 12 is a configuration diagram illustrating an example of a projector unit according to a third embodiment of the present disclosure.

[0120] Such as Figure 11 As shown, the camera system according to the third embodiment includes at least a projector unit 51 , a polygonal mirror 52 (an example of a scanning unit), and a camera unit 10 . Figure 11 The description of the camera unit 10 is omitted in . other configurations with figure 1 The co...

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Abstract

An imaging apparatus includes: an imaging device that images an infrared image using reflected light from a subject to which infrared light is irradiated, and, in addition, images a color image using the reflected light from the subject to which patterns formed by combining a plurality of colors of visible laser light are projected; and a signal processing unit that colors the infrared image using color information which is determined depending on an intensity of the reflected light of the plurality of colors of visible laser light from the color image.

Description

technical field [0001] The present disclosure relates to an imaging device, an imaging method, and a camera system suitably used for a surveillance camera or a civilian video camera for nighttime image capture based on infrared radiation. Background technique [0002] Surveillance cameras generally include two functions, that is, a day mode that captures images during the day and a night mode that captures images at night. Day mode is a capture feature that uses normal colors. However, in the night mode, in order to capture an image in a dark environment at night, infrared rays (infrared rays) are projected, and reflected light thereof is captured. Therefore, clear images (hereinafter referred to as infrared images) can be captured even in environments where there is no light at all. [0003] However, unlike visible light capture, since infrared rays cannot be used to acquire color information in this capture, generally, a gray or green monochrome image is generally displa...

Claims

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Application Information

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IPC IPC(8): H04N5/33H04N5/225H04N5/232H04N9/04
CPCH04N5/33H04N23/56H04N23/667H04N23/11H04N23/20
Inventor 杉山寿伸
Owner SONY CORP
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