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Depth camera for projecting unrelated pattern

A depth camera and pattern technology, applied in camera, camera body, optics, etc., can solve problems such as uncorrelated structured light patterns

Active Publication Date: 2019-03-26
SHENZHEN ORBBEC CO LTD
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Problems solved by technology

[0004] The present invention proposes a depth camera to solve the problem of irrelevant structured light patterns

Method used

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  • Depth camera for projecting unrelated pattern
  • Depth camera for projecting unrelated pattern
  • Depth camera for projecting unrelated pattern

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Embodiment Construction

[0018] The present invention will be further described in detail below in conjunction with the specific embodiments and with reference to the accompanying drawings. It should be emphasized that the following descriptions are merely exemplary, and are not intended to limit the scope and application of the present invention.

[0019] For a structured light projection module that projects a speckle (speckle, structured light) pattern and a depth camera based on the module, the density of the speckle pattern will affect the accuracy of the depth image finally output by the depth camera. In addition to the density, the speckle pattern The degree of irrelevance also has an important impact on the accuracy. The degree of irrelevance of the speckle pattern generally refers to arbitrarily selecting a small area of ​​a certain pixel area in the pattern (such as 7x7 or 11x11 pixels, etc.), and the speckle arrangement features in this area have unique characteristics along multiple directi...

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Abstract

The present invention discloses a depth camera for projecting an unrelated pattern. The depth camera comprises a projection module for projecting structured light pattern beams to a target area, and an acquisition module which is arranged at a baseline with a certain distance from the projection module and is used for collecting structured light patterns in the target area, wherein the structuredlight patterns are periodically arranged along a first direction, and an angle is between the first direction and a direction of the baseline. By designing the projection module, the outwardly projected structured light patterns are periodically arranged in a certain direction which has angle deflection from the baseline, and therefore, a speckle pattern with a high degree of irrelevance along thebaseline direction is obtained.

Description

technical field [0001] The invention relates to the manufacturing field of electronic and optical components, in particular to a depth camera for projecting irrelevant patterns. Background technique [0002] The depth camera can obtain the depth information of the target to realize 3D scanning, scene modeling, and gesture interaction. Compared with the currently widely used RGB cameras, the depth camera is gradually being valued by all walks of life, such as the use of depth cameras and TV, The combination of computers and other devices can realize somatosensory games to achieve the effect of two-in-one game and fitness. With the rapid popularization of mobile terminals such as mobile phones and tablets, there is an urgent need to embed depth cameras into mobile terminals. Mobile terminals with depth cameras can achieve more accurate and reliable face recognition and gesture interaction than ordinary RGB cameras. , and even features like AR. [0003] Compared with traditio...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B17/54G03B21/20
CPCG03B17/54G03B21/2013
Inventor 王兆民许星
Owner SHENZHEN ORBBEC CO LTD
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