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High-resolution three-dimensional face scanning method for camera phone

A three-dimensional face, high-resolution technology, applied in the field of high-resolution three-dimensional face scanning, can solve problems such as the difficulty of 3D scanning, the influence of reconstruction results, ignoring illumination information and reflectivity information, etc., to achieve low cost, application Simple, high-resolution effects

Inactive Publication Date: 2014-03-12
SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
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Problems solved by technology

In addition, this method only relies on 41 feature points to achieve reconstruction, while ignoring the illumination information and reflectance information
This leads to the error of manual calibration in the early stage will have a very large impact on the reconstruction results, which in turn makes it difficult to achieve high-precision 3D scanning in actual use

Method used

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  • High-resolution three-dimensional face scanning method for camera phone
  • High-resolution three-dimensional face scanning method for camera phone
  • High-resolution three-dimensional face scanning method for camera phone

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Embodiment Construction

[0048] The technical solutions in the preferred embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention.

[0049] combine Figure 1 to Figure 3 , is that the present invention is used for the high-resolution three-dimensional face scanning method of camera phone. The specific implementation steps include as follows:

[0050]The first step is to construct a 3D face reference template; this step calculates the average face based on the 3D face database, and calibrates the feature points. During the reconstruction process, the calibrated 3D average face is used as a reference template. The detailed construction process of this reference template includes the following 5 steps:

[0051] 1) Filter the dataset

[0052] According to the standard that there is no obvious light direction and the number of men and women is equal, the data set used to calculate the reference template is s...

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Abstract

The invention discloses a high-resolution three-dimensional face scanning method for a camera phone, comprising the steps of: carrying out feature point location and gamma correction pre-treatment to an input image by constructing a three-dimensional face reference template and collecting data of a scanning object through the camera phone, then carrying out rough reconstruction and fine reconstruction of a three-dimensional face, and finally storing shape information in a manner of a vertex normal vector so as to finish three-dimensional face scanning with high resolution by the camera phone. The high-resolution three-dimensional face scanning method, disclosed by the invention, has the advantages of low cost, high resolution and high speed.

Description

technical field [0001] The invention relates to the fields of computer vision and computer graphics, in particular to a method for completing high-resolution three-dimensional human face scanning using an ordinary camera phone. Background technique [0002] 3D face scanning has a wide range of applications in fields such as human-computer interaction, film and television production, game entertainment, and video communication. But at present, the completion of this task requires the help of large and expensive equipment or reconstruction algorithms with high complexity and high interactive operation requirements. Ordinary consumers cannot conveniently realize 3D face scanning in their daily life. [0003] The current 3D face scanning methods mainly fall into two categories. The first type is to directly collect the 3D information of the scanned object with the help of laser scanners or depth cameras and other equipment. 3D information is reconstructed. The three-dimension...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/20G06T17/00
Inventor 高巍沈晔湖朱怡魏磊貊睿彭振云
Owner SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
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