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Depth image acquisition method, depth image acquisition module and electronic equipment

A technology of depth image and grayscale image, which is applied in depth image acquisition, depth image acquisition module and electronic equipment, and can solve the problems of depth information accuracy and low signal-to-noise ratio of speckle image

Active Publication Date: 2019-05-31
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Abstract
  • Description
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Problems solved by technology

However, when the brightness of the external environment is high, the signal-to-noise ratio of the speckle image captured by the infrared camera is low, which will affect the accuracy of the depth information.

Method used

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  • Depth image acquisition method, depth image acquisition module and electronic equipment
  • Depth image acquisition method, depth image acquisition module and electronic equipment
  • Depth image acquisition method, depth image acquisition module and electronic equipment

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Embodiment Construction

[0013] Embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, are only for explaining the embodiments of the present application, and should not be construed as limiting the embodiments of the present application.

[0014] see figure 1 , the present application provides an electronic device 100 . The electronic device 100 may be a mobile phone, a tablet computer, a notebook computer, a game console, a smart watch, a smart bracelet, a head-mounted display device, a drone, and the like. In this application, the electronic device 100 is a mobile phone as an example for illustration, but the specific form of the electronic device 100 is not limited to the mobile phone.

[0015] The electronic device 100 ...

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Abstract

The invention discloses a depth image acquisition method, a depth image acquisition module and electronic equipment. The depth image acquisition module comprises a first camera, a second camera, a third camera, a light projector and a processor. The first camera is used for shooting a preview image, and the processor obtains the environment brightness of the scene according to the preview image. And when the ambient brightness is greater than the preset brightness, the first camera shoots a visible light image of the scene, the second camera shoots a grayscale image of the scene, and the processor calculates a depth image of the scene according to the visible light image and the grayscale image. When the ambient brightness is smaller than the preset brightness, the light projector projectsinfrared light into the scene to form a speckle pattern, the second camera shoots a first speckle image of the scene, the third camera shoots a second speckle image of the scene, and the processor calculates a depth image of the scene according to the first speckle image and the second speckle image.

Description

technical field [0001] The present application relates to the technical field of three-dimensional imaging, in particular to a depth image acquisition method, a depth image acquisition module and electronic equipment. Background technique [0002] A structured light depth camera is usually installed on an electronic device (such as a mobile phone) to obtain a depth image of a scene. The light projector in the structured light depth camera projects infrared laser light to the outside world, and the infrared camera receives the infrared laser light reflected back by the outside world to obtain a speckle image. The electronic device can calculate the depth information of the scene based on the speckle image and the pre-stored reference image. However, when the brightness of the external environment is high, the signal-to-noise ratio of the speckle image captured by the infrared camera is low, which will affect the accuracy of the depth information. Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N13/239H04N13/243H04N13/25H04N13/254H04N13/296H04N13/106H04N5/33H04N5/235
Inventor 杨鑫
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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