User face pose detection method and device based on improved PnP, and medium

The invention relates to a user face pose detection method and device based on improved PnP, and a medium, and the method comprises the following steps: obtaining scanning data of a user head, constructing a three-dimensional model, obtaining a plurality of three-dimensional key point coordinates un...

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Bibliographic Details
Main Authors CHANG CHAOFAN, YU HONGLIU, HU BINGSHAN, TAN CHENYU, XU PENG, LI PING
Format Patent
LanguageChinese
English
Published 29.12.2023
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
PHYSICS
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Summary:The invention relates to a user face pose detection method and device based on improved PnP, and a medium, and the method comprises the following steps: obtaining scanning data of a user head, constructing a three-dimensional model, obtaining a plurality of three-dimensional key point coordinates under a camera coordinate system, and coordinates of two-dimensional key points under a corresponding camera shooting plane, forming a plurality of three-dimensional-two-dimensional point pairs; obtaining projection imaging constraint information between points based on the plurality of three-dimensional-two-dimensional point pairs, and obtaining a conversion matrix between a world coordinate system and a camera coordinate system based on the projection imaging constraint information; and based on the conversion matrix between the world coordinate system and the camera coordinate system, obtaining the face pose of the user in the world coordinate system. Compared with the prior art, the method has the advantages of i
Bibliography:Application Number: CN202311120265