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Power control method and equipment for TOF camera light emitting module

A TOF camera and power control technology, which is applied in the field of image processing and can solve the problems of large heating of the light source and affecting the measurement accuracy, etc.

Active Publication Date: 2020-12-11
君恒新信息科技(深圳)有限公司
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Problems solved by technology

[0004] In view of the deficiencies in the above-mentioned prior art, the object of the present invention is to provide a power control method and equipment for a TOF camera light emission module, which overcomes the fixed power of the light emission module of the TOF camera in the prior art, which causes the light source Large heat generation, affecting measurement accuracy and other defects

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  • Power control method and equipment for TOF camera light emitting module
  • Power control method and equipment for TOF camera light emitting module
  • Power control method and equipment for TOF camera light emitting module

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[0040] In order to make the object, technical solution and advantages of the present invention more clear and definite, the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0041] Those skilled in the art will understand that unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the word "comprising" used in the description of the present invention refers to the presence of said features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, Integers, steps, operations, elements, components, and / or groups thereof. It will be understood that when an element is referred to as being "...

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Abstract

The invention provides a power control method and device for a TOF camera light emitting module. The method comprises the steps: acquiring a shooting object depth map; determining power control information of a light emitting module according to the depth map; and adjusting the power of a light emitting module of the TOF camera according to the power control information. According to the method provided by the embodiment of the invention, the distance of the shooting object in the working distance of the TOF camera is judged at first, and then the transmitting power of the light transmitting module is adjusted and controlled, so the problems of high power consumption and high heat generation of the light transmitting module due to the fact that the distances of the shooting object in the working distance are different and the same transmitting power is used are solved; therefore, the TOF measurement precision is effectively improved, the energy consumption is reduced, and the method and the equipment provided by the embodiment of the invention are particularly suitable for depth map shooting of a long-distance shooting object.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a power control method and equipment for a TOF camera light emission module. Background technique [0002] In the existing technology, according to the actual usage scenario, the manufacturer will set the light emission module (such as VCSEL or LED) of the TOF camera to a fixed power, so the power of the light emission module will not be adjusted according to the distance of the subject. The product works at a fixed distance. Within the range of the working distance, regardless of the distance of the subject, the same power is used, which will cause the light source to heat up, which will affect the measurement accuracy, and the device will consume more power due to heat. [0003] Therefore, prior art awaits further improvement. Contents of the invention [0004] In view of the deficiencies in the above-mentioned prior art, the object of the present invention is to pr...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N13/271H04N13/246
CPCH04N13/271H04N13/246
Inventor 李曙恒
Owner 君恒新信息科技(深圳)有限公司
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