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Binocular stereo vision based intelligent three-dimensional human face rebuilding method and system

A binocular stereo vision, 3D face technology, applied in the field of intelligent 3D face reconstruction, can solve the problems of unsatisfactory results, time-consuming calculation, and high cost

Inactive Publication Date: 2010-10-20
BEIJING JIAOTONG UNIV
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  • Application Information

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Problems solved by technology

However, this is not only time-consuming but also computationally expensive, and in most cases unsatisfactory results

Method used

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  • Binocular stereo vision based intelligent three-dimensional human face rebuilding method and system
  • Binocular stereo vision based intelligent three-dimensional human face rebuilding method and system
  • Binocular stereo vision based intelligent three-dimensional human face rebuilding method and system

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Embodiment Construction

[0031] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0032] refer to figure 1 to Figure 3b Examples of the present invention will be described.

[0033] The invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0034] Such as figure 1 As shown, first, after using the camera to collect the left and right images to obtain the face image, the face image is preprocessed, including image normalization, brightness normalization and image correction, and then the skin color likelihood estimation is used to find the face region, and use active shape model (ASM) to do face feature point extraction, which is beneficial to use prior knowledge of face structure. When the camera is calibrated, the object is reconstructed through ...

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Abstract

The invention discloses a binocular stereo vision based intelligent three-dimensional human face rebuilding method and a system; the method comprises: preprocessing operations including image normalization, brightness normalization and image correction are carried out to a human face image; a human face area in the human face image which is preprocessed is obtained and human face characteristic points are extracted; the object is rebuilt by projection matrix, so as to obtain internal and external parameters of a vidicon; based on the human face characteristic points, gray level cross-correlation matching operators are expanded to color information, and a parallax image generated by stereo matching is calculated according to information including polar line restraining, human face area restraining and human face geometric conditions; a three-dimensional coordinate of a human face spatial hashing point cloud is calculated according to the vidicon calibration result and the parallax image generated by stereo matching, so as to generate a three-dimensional human face model. By adopting the steps, more smooth and vivid three-dimensional human face model is rebuilt in the invention.

Description

technical field [0001] The invention relates to the technical field of binocular stereo vision, in particular to an intelligent three-dimensional face reconstruction method and system based on binocular stereo vision. Background technique [0002] In recent years, information and communication technologies have become integrated into every sector and all parts of our lives, opening up an unprecedented world where people interact with electronic devices embedded in sensitive responsive user presence to provide smart buildings that users need The characteristic of computer-aided security system is becoming the trend of domestic research, requiring more complex services. Vision is the most direct and common way for human beings to obtain external information. The ultimate goal of vision is to explain and describe the scene meaningfully to the observer, and then based on these explanations and descriptions, formulate behavior plans according to the surrounding environment and t...

Claims

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Application Information

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IPC IPC(8): G06T17/00G06T7/00G06K9/46
Inventor 明悦阮秋琦
Owner BEIJING JIAOTONG UNIV
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