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Three-dimensional face reconstruction method and system

A three-dimensional face, target face technology, applied in 3D modeling, details involving image stitching, details involving 3D image data, etc., can solve the problems of slow reconstruction rate and inaccurate results, and achieve strong stereoscopic, Broad application prospect, small error effect

Pending Publication Date: 2021-03-26
CHANGCHUN UNIV OF SCI & TECH
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Problems solved by technology

[0005] In view of the shortcomings of the above-mentioned prior art, the present invention provides a three-dimensional face reconstruction method and system to at least partially solve the technical problems of slow reconstruction speed and inaccurate results of the above-mentioned existing methods

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  • Three-dimensional face reconstruction method and system
  • Three-dimensional face reconstruction method and system
  • Three-dimensional face reconstruction method and system

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no. 1 example

[0048] This embodiment provides a three-dimensional face reconstruction method, which can be implemented by an electronic device, and the electronic device can be a terminal or a server. The execution flow of this method is as follows figure 1 shown, including the following steps:

[0049] S101, acquiring depth images from multiple angles of the target face to be reconstructed;

[0050]It should be noted that, in this embodiment, the manner of acquiring the depth image is as follows: a high-precision depth camera is used to acquire the depth images of the front and two sides of the target face to be reconstructed.

[0051] S102, converting the acquired depth images at various angles into corresponding point cloud data;

[0052] It should be noted that since the pixel points in the depth image represent the distance between the point and the camera, the point cloud model can be constructed by using the camera internal reference through coordinate conversion. The data collecte...

no. 2 example

[0098] The present embodiment provides a kind of three-dimensional human face reconstruction system, and this system comprises following module:

[0099] A depth image acquisition module, configured to acquire multiple angle depth images of the target face to be reconstructed;

[0100] The point cloud data acquisition module is used to convert the depth images of each angle into point cloud data respectively;

[0101] The data registration module is used to de-dry the point cloud data of each angle and perform data registration, realize the splicing of the point cloud data of each angle, and obtain the three-dimensional point cloud data corresponding to the target face to be reconstructed;

[0102] The 3D face model construction module is used to perform grid processing and face mapping operations on the 3D point cloud data to obtain a 3D face model corresponding to the target face to be reconstructed.

[0103] The 3D face reconstruction system of this embodiment corresponds ...

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Abstract

The invention discloses a three-dimensional face reconstruction method and a three-dimensional face reconstruction system. The method comprises the following steps: collecting depth images of a targetface to be reconstructed at multiple angles; respectively converting the collected depth images of each angle into corresponding point cloud data; performing denoising processing on the point cloud data of each angle and performing data registration to realize splicing of the point cloud data of each angle so as to obtain three-dimensional point cloud data corresponding to the target face to be reconstructed; and performing gridding processing and face mapping operation on the three-dimensional point cloud data to obtain a three-dimensional face model corresponding to the to-be-reconstructedtarget face. The reconstructed three-dimensional face is small in error and high in stereoscopic impression, carries a large amount of texture information, solves the problems that an existing methodis low in reconstruction speed, inaccurate in result and the like, is applied to face virtual plastic surgery, can provide preoperative guidance for professional doctors, improves the operation success rate, reduces operation risks and has wide application prospects.

Description

technical field [0001] The invention relates to the technical field of three-dimensional reconstruction, in particular to a three-dimensional face reconstruction method and system. Background technique [0002] Facial cosmetic surgery can easily lead to unsatisfactory results or even failure due to the inability to perform objective and quantitative morphological evaluation on the patient's face before surgery. Moreover, plastic surgeons cannot accurately quantify facial data based on professional knowledge and experience, and the surgical process lacks objective and effective guidance. [0003] 3D reconstruction technology uses 3D scanning equipment to collect data, and performs denoising, computer image processing, reconstruction and other operations on the collected 3D data to reshape the shape of the scanned volume. According to different cameras, 3D reconstruction can be divided into three methods: single-eye reconstruction, binocular reconstruction, and depth camera r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/20G06T7/73G06T7/33G06T5/00G06T3/40
CPCG06T17/20G06T7/337G06T7/73G06T3/4038G06T2207/10028G06T2200/04G06T2200/32G06T5/70
Inventor 孙硕嵇晓强刘丹石乐民王美娇
Owner CHANGCHUN UNIV OF SCI & TECH
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