A three-dimensional face modeling method and system without phase unwrapping

A three-dimensional face and phase unwrapping technology, applied in the field of computer vision, can solve the problems of increased cost, unfavorable large-scale promotion and application, unfavorable three-face measurement, etc., achieve short-term, reduce the number of projected and photographed structured light fields, and improve The effect of hardware performance

Active Publication Date: 2019-06-18
WISESOFT CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current situation that the temporal phase unwrapping method needs to increase the number of modeling images is not conducive to three-face measurement
In the case of keeping the acquisition time of m

Method used

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  • A three-dimensional face modeling method and system without phase unwrapping
  • A three-dimensional face modeling method and system without phase unwrapping
  • A three-dimensional face modeling method and system without phase unwrapping

Examples

Experimental program
Comparison scheme
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Example Embodiment

[0033] Example 1

[0034] The modeling system of this embodiment mainly includes: a modeling control module, and a stroboscopic striped structured light projection device and cameras communicatively connected with the modeling control module (the number of cameras is greater than or equal to two to collect multi-angle images), The modeling control module is used to control the coordinated work flow of the strobe stripe structured light projection device and the camera, so that the system can implement the three-dimensional face modeling method.

[0035] The modeling control module sends a control signal or an enable signal to the stroboscopic structured light projection device to control the stroboscopic structured light projection device for projection output, which can coordinate the workflow of the three-dimensional face modeling system and is based on the camera The image sent here completes the 3D face modeling. And the modeling control module is one of a controller, a proces...

Example Embodiment

[0049] Example 2

[0050] A method and system for 3D face modeling without phase expansion figure 1 As shown, it includes a fringe structured light projection device 100 with a near-infrared 1-dimensional scanning galvanometer as the core component, a left infrared camera 201, a right infrared camera 202, and a modeling control module 400. The frequency-stripe structured light projection device 100 projects N (N≥3) sine stripe structured light field sequences 300 with an adjustable number of images to the face surface, and simultaneously outputs synchronization control signals to the near-infrared cameras 201-202; The near-infrared cameras 201-202 work in an external trigger state, and under the control of the synchronization control signal output by the stroboscopic striped structured light projection device 100, photograph the face surface illuminated by the sinusoidal striped structured light field 300 as a modeling image. The modeling control module 400; the modeling control ...

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Abstract

The invention discloses a three-dimensional face modeling method and system without phase unwrapping. According to the method, the method comprises steps of marking the surface of a target face through phase information contained in a multi-frame stripe structured light place; extracting human face feature points from a plurality of frames of human face texture images shot by the camera and generating human face geometric information constraint conditions; constraining a binocular stereo matching process by utilizing geometric information of a human face, directly using a truncated phase for replacing an absolute phase for stereo matching to calculate a disparity map, and obtaining a high-precision and high-reliability disparity map through a stereo matching method without phase unwrapping, so that a three-dimensional human face model is reconstructed. The method does not need to project an additional structure light field and shoot the additional structure light field to assist phaseunwrapping, effectively reduces the number of projection and shooting structure light fields required by three-dimensional face modeling, shortens modeling image acquisition time, and effectively guarantees modeling precision.

Description

technical field [0001] The invention relates to the technical field of computer vision, in particular to a three-dimensional face modeling method and system without phase unwrapping. Background technique [0002] Using digital images to reconstruct the three-dimensional surface shape of objects is a long-term research focus of computer vision. In recent years, 3D face modeling technology has developed rapidly. Realistic 3D face models have broad application prospects in many fields such as film and television, games, education, virtual reality, plastic surgery, identity authentication, and 3D printing. In recent years, public safety and information security have become important areas related to the national economy and the people's livelihood. Biometric recognition technology has developed rapidly in recent years. The recognition rate of recognition technology is easily affected by factors such as posture, lighting, and makeup, and the anti-counterfeiting ability is weak, ...

Claims

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Application Information

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IPC IPC(8): G06T17/00G06T15/04G06K9/00
Inventor 荆海龙朱江平傅可人熊伟陈虎
Owner WISESOFT CO LTD
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