Face relative posture estimation method combined with face key point detection

A technology of face key points and relative poses, applied in computing, computer components, image data processing, etc., can solve problems such as accuracy requirements and model size limitations, achieve improved accuracy, enhanced robustness, and reduced failure to converge the effect of the possibility

Active Publication Date: 2021-03-30
ZHEJIANG UNIV
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  • Abstract
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  • Claims
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Problems solved by technology

With the development of computing resources, such methods have gradually become popular, but they are greatly limited by the size of the model and the requirements for accuracy.

Method used

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  • Face relative posture estimation method combined with face key point detection
  • Face relative posture estimation method combined with face key point detection
  • Face relative posture estimation method combined with face key point detection

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[0036] specific implementation plan

[0037] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0038] On the contrary, the invention covers any alternatives, modifications, equivalent methods and schemes within the spirit and scope of the invention as defined by the claims. Further, in order to make the public have a better understanding of the present invention, some specific details are described in detail in the detailed description of the present invention below. Without the description of these detailed parts, the present invention can be fully understood by those skilled in the art.

[0039] refer to figure 1 It is a flow chart of the steps of t...

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Abstract

The invention discloses a method for estimating the relative posture of a human face by combining key points of the human face with RGBD data. According to the method, face key points on an RGB imageare recognized, an initial posture angle difference is calculated, depth data is combined, RGBD point cloud is matched, and high-precision relative posture estimation of a face between different angles is obtained. Different from a previous recognition method, RGB-D data are used in the method, the requirement for the size of a data set is low, and high-precision relative attitude estimation can be achieved on data of small samples. Face key point information is also combined, so that the robustness of attitude estimation is enhanced.

Description

technical field [0001] The invention belongs to image recognition, human face key point recognition, and human face posture estimation, and particularly relates to a method for estimating relative human face pose based on RGB-D data and human face key points. Background technique [0002] The relative pose of faces has important research value. Its goal is to accurately estimate the relative pose between a pair of face RGB-D data from different angles. Face relative pose estimation has the following main application scenarios: [0003] (1) Attention detection: By judging the head posture, the human attention can be judged. For example, it can detect whether the long-distance driver is looking ahead. If he does not look ahead for a long time, he can beat in advance to ensure safety and reduce accidents; another example is to monitor whether students are concentrating in class. [0004] (2) Behavior analysis. Similar to (1), video surveillance analysis and other algorithms...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06T7/11G06T7/73
CPCG06T7/11G06T7/73G06T2207/10028G06T2207/10024G06T2207/20132G06T2207/30201G06V40/161
Inventor 于慧敏刘柏邑
Owner ZHEJIANG UNIV
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