Depth camera lighting system

A depth camera and lighting system technology, applied in the lighting system field, can solve problems such as camera measurement error and design, and achieve the effect of reducing the impact of measurement accuracy and accuracy

Active Publication Date: 2021-10-08
CHINA HEFEI TAIHE OPTOELECTRONICS TECH
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Problems solved by technology

[0005] Therefore, in the existing TOF depth camera lighting scheme, the lighting system of the depth camera is not designed according to the characteristics of the receiving field of view of the depth camera. The lighting area is generally circular and is much larger than the receiving field of view of the TOF depth camera. It is necessary to cause the light signal reflected or scattered back by the non-measurement target to enter the receiving field of view of the depth camera, which is one of the sources of camera measurement error

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Embodiment Construction

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention belong to the protection scope of the present invention.

[0023] to combine Figure 1 to Figure 3 As shown, the lighting system 100 of the depth camera according to the embodiment of the present invention includes: a rectangular groove 10 arranged on the front panel of the TOF depth camera housing, the groove 10 has a stepped inner wall 15; the lighting system 100 also includes a The light source 20 in the groove 10.

[0024] The lighting system 100 of the present invention can shape the lighting beam by setting the groove 10 with the stepped inner...

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Abstract

The invention discloses an illumination system for a depth camera. The illumination system comprises: a rectangular groove arranged on the front panel of the housing of the depth camera, the groove has a stepped inner wall; and a light source located in the groove. The above technical solution can realize the matching of the illumination area and the receiving field of view of the camera, and reduce the impact of the light signal reflected or scattered by the non-measurement target on the measurement accuracy and accuracy.

Description

technical field [0001] The present invention relates to the technical field of depth cameras, in particular to an illumination system for depth cameras. Background technique [0002] With the development of optical measurement, depth cameras based on TOF (Time of Flight) technology have gradually matured and have been applied in the fields of 3D measurement, gesture control, robot navigation, security and monitoring. The TOF depth camera is composed of two parts: the illumination system and the receiving system. The basic principle is that the light from the active light source is reflected by the object and then received by the camera. The distance between the target and the depth camera is calculated according to the time from the light emission to the reception. The lighting system generally uses light-emitting diodes, laser diodes or vertical cavity surface-emitting lasers in the invisible infrared band for active lighting. The receiving system is similar to the imaging ...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): G03B15/02
CPCG03B15/02
Inventor石江涛陈晓东张如意万云武黄守强
OwnerCHINA HEFEI TAIHE OPTOELECTRONICS TECH