Speckle-based three-dimensional-face reconstruction method and device

A three-dimensional face and speckle technology, which is applied in the field of three-dimensional face reconstruction based on speckle, can solve the problems of slow calculation efficiency, low accuracy of speckle image, and low precision, and achieve high-precision three-dimensional face reconstruction. effect, reduce the search scope, and improve the overall efficiency
CN108734776AActive Publication Date: 2018-11-02WISESOFT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
WISESOFT CO LTD
Publication Date
2018-11-02

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Abstract

The invention discloses a speckle-based three-dimensional-face reconstruction method and device. The method and the device can reduce matching calculation quantity while image feature richness is improved, and realize synchronized improvement of three-dimensional-face reconstruction efficiency and reconstruction precision. The method comprises: inputting a plurality of speckle image pairs conforming to binocular stereo vision; carrying out polar line correction on the input speckle image pairs to enable corresponding matching points to be at the same horizontal lines; carrying out face detection on the speckle image pairs after polar line correction, and extracting region-of-interest image pairs of to-be-reconstructed faces; carrying out first matching processing on the region-of-interestimage pairs to obtain first parallax graphs; setting a matching point searching range according to parallax in the first parallax graphs, and carrying out second matching processing on the region-of-interest image pairs to obtain second parallax graphs; and generating corresponding three-dimensional point cloud data according to the second parallax graphs and camera calibration parameters to obtain the reconstructed three-dimensional faces.
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Description

technical field

[0001] The invention relates to the technical field of multi-eye stereo vision, in particular to a speckle-based three-dimensional face reconstruction method and equipment. Background technique

[0002] At present, 3D data is widely used in aerospace, 3D printing, geographic mapping, face detection and many other fields. Real-time and accurate acquisition of space-time data has always been the core issue of 3D information collection and 3D scene reconstruction, and it is also a hot research direction in the field of computer geometry.

[0003] 3D face modeling stems from Parke's pioneering research to generate realistic 3D faces by computer. Obtaining 3D face depth information is the basic prerequisite for reconstructing a high-precision 3D face model, and 3D face data can be collected through monocular or multi-eye cameras.

[0004] Among them, the main application scenario of multi-eye stereo vision is to restore the two-dimensional projection image to a ...

Claims

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