Construction method and device of high-precision face shape library, equipment and storage medium

A construction method and high-precision technology, applied in the field of computer vision, can solve problems such as the difficulty of constructing a 3DMM face shape library, and achieve the effect of reducing construction difficulty, reducing demand, and improving construction efficiency

Pending Publication Date: 2020-08-25
TENCENT TECH (SHENZHEN) CO LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the above technical solution, the BFM shape library needs to collect a large amount of high-precision face data, which makes the process of building a 3DMM face shape library more difficult

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Construction method and device of high-precision face shape library, equipment and storage medium
  • Construction method and device of high-precision face shape library, equipment and storage medium
  • Construction method and device of high-precision face shape library, equipment and storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] In order to make the purpose, technical solution and advantages of the present application clearer, the implementation manners of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0034] First, the nouns involved in the embodiments of the present application are introduced.

[0035] Computer Vision (Computer Vision, CV): It is a science that studies how to make machines "see". More specifically, it refers to machine vision that uses cameras and computers instead of human eyes to identify, track and measure targets, and further Do graphics processing, so that computer processing becomes an image that is more suitable for human observation or sent to the instrument for detection. As a scientific discipline, computer vision studies related theories and technologies, trying to build artificial intelligence systems that can obtain information from images or multidimensional data. Computer vision technology usu...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a construction method and device of a high-precision face shape library, equipment and a storage medium, and relates to the field of computer vision. The method comprises the steps of obtaining a first facial form base, wherein the first facial form base is a human face shape base obtained through first precision human face data and second precision human face data; constructing a second facial form base through the first facial form base and the first fitting error; fitting the disturbance data through the first facial form base to obtain a second fitting error; fitting the second fitting error through the second facial form base to obtain a third fitting error of the second facial form base; and performing iterative updating on the expanded first fitting error according to the second fitting error and the third fitting error, and constructing a high-precision face shape library according to the second face shape base and the first face shape base obtained wheniteration is ended. Therefore, the data demand for the first-precision face data is reduced, the construction cost of the high-precision face shape library is reduced, and the construction efficiencyof the high-precision face shape library is improved.

Description

technical field [0001] The present application relates to the field of computer vision, in particular to a method, device, equipment and storage medium for constructing a high-precision face shape library. Background technique [0002] The 3DMM (3D Morphable Model, three-dimensional deformable model) library is used to provide a standard face model for three-dimensional (3Dimensions, 3D) face reconstruction. [0003] Taking the Basel Face Model (BFM) as an example, the original face data is collected by a high-precision 3D scanner. After obtaining the original face data, non-rigid registration (non-rigid registration) Named as non-rigid icp or nricp) corresponding to the original face data to register, you can get a face grid similar to the original face data under a specific model, and then perform principal component analysis on the obtained face grid Processing to build a BFM shape library. [0004] In the above technical solution, the BFM shape library needs to collect...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G06F16/51G06F16/583G06K9/62
CPCG06F16/51G06F16/5854G06F18/2135Y02D10/00
Inventor 王盛林祥凯
Owner TENCENT TECH (SHENZHEN) CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products