Device for obtaining depth image of three-dimensional scene

A 3D scene and depth map technology, applied in the field of scanning and reconstruction of 3D scenes, can solve the problems of parallax and interference between infrared cameras and color cameras

Active Publication Date: 2017-03-29
SHANGHAI TIMENG INFORMATION TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a device for obtaining a depth map of a three-dimensional scene, which can solve the problem of being easily interfered by external ambient light, as well as the parallax problem of the infrared camera and the color camera

Method used

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  • Device for obtaining depth image of three-dimensional scene
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  • Device for obtaining depth image of three-dimensional scene

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Embodiment Construction

[0020] Embodiments of the present invention describe a device for obtaining a depth map of a three-dimensional scene, which adapts to different application scenarios through state switching and combination of various components in different modes.

[0021] image 3 A device 300 for acquiring a depth map of a three-dimensional scene is shown, including an infrared projector 310 , a first camera 320 , a second camera 330 , and an infrared supplementary light source 340 . The first camera 320 is configured to receive infrared light, for example, the first camera 320 is an infrared camera. The second camera 330 is configured to receive colored visible light, for example, the second camera 330 is a color camera and can collect color images. Different from the known devices, the first camera 320 and the second camera 330 are not close to each other, but are arranged at a relatively long distance on the device 300, and this distance conforms to binocular vision. The infrared projec...

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Abstract

The present invention relates to a device for obtaining the depth image of a three-dimensional scene. The device comprises an infrared projector, a first camera, a second camera and an infrared light compensating light source; the first camera is configured to receive infrared light; the second camera is configured to receive color visible light; a distance in accordance with binocular vision is defined between the first camera and the second camera; the infrared projector is configured to project structured light under a first mode and not project structural light under a second mode; and the infrared light compensating light source is configured to selectively project a complementary light source under the second mode.

Description

technical field [0001] The invention relates to scanning and reconstruction of a three-dimensional scene, in particular to a device for acquiring a depth map of a three-dimensional scene. Background technique [0002] Obtaining the distance of each point in the scene to the camera is one of the important tasks of the computer vision system. The distance of each point in the scene relative to the camera can be represented by a depth map (Depth Map), that is, each pixel value in the depth map represents the distance between a point in the scene and the camera. The technology of the machine vision system to obtain the scene depth map can be divided into two categories: passive ranging sensing and active depth sensing. Passive ranging sensing means that the vision system receives light energy emitted or reflected from the scene to form relevant scene light energy. distribution function, i.e. grayscale images, and then on the basis of these images the depth information of the sc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N13/00H04N5/235
Inventor 宋金龙
Owner SHANGHAI TIMENG INFORMATION TECH CO LTD
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