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Target geographic area face template generation method and device

A geographic area and template generation technology, applied in the field of computer vision, can solve the problems of heavy workload and low accuracy, and achieve the effects of high accuracy, low cost, good fitting and performance ability

Active Publication Date: 2020-10-09
TSINGHUA UNIV
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  • Claims
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Problems solved by technology

[0003] This application proposes a method and device for generating a face template in a target geographical area, which is used to solve the problem of low accuracy and heavy workload in existing face reconstruction methods question

Method used

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  • Target geographic area face template generation method and device
  • Target geographic area face template generation method and device
  • Target geographic area face template generation method and device

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Embodiment Construction

[0024] Embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary, and are intended to explain the present application, and should not be construed as limiting the present application.

[0025] The method and device for generating a face template in a target geographical area according to an embodiment of the present application will be described below with reference to the accompanying drawings.

[0026] figure 1 It is a schematic flowchart of a method for generating a face template in a target geographical area provided by the embodiment of the present application.

[0027] In this embodiment, the target geographic area can be determined as required. For example, taking continents as an example, the targe...

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Abstract

The invention provides a target geographic area face template generation method and device. The method comprises the steps of collecting target geographic area three-dimensional face data carrying texture information; carrying out preliminary alignment on the three-dimensional face data of the target geographic area and a three-dimensional face template Bessel face model (BFM); performing fine alignment and coordinate normalization on the BFM by using a non-rigid nearest point iterative algorithm; and performing principal component analysis on the finely aligned and normalized BFM to obtain parameters for representing the shape, expression and texture of the face and a corresponding parameter-vertex coordinate matrix. The face template generated by the method is high in accuracy, small inworkload and low in cost.

Description

technical field [0001] The present application relates to the technical field of computer vision, and in particular to a method and device for generating a face template in a target geographical area. Background technique [0002] With the continuous development of face reconstruction technology in the field of computer vision. In practical applications, there will be certain differences in facial features in different geographic regions. Directly using existing 3D face templates for face reconstruction, the accuracy of the obtained faces is low. If the facial data of a geographical area is collected to construct a face template of the geographical area, the workload is heavy and the cost is high. Contents of the invention [0003] The present application proposes a method and device for generating a face template in a target geographical area, which are used to solve the problems of low accuracy and heavy workload in existing face reconstruction methods. [0004] An emb...

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Application Information

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IPC IPC(8): G06T7/40G06T17/00G06K9/00G06T7/90
CPCG06T7/40G06T17/00G06T7/90G06V40/174G06V40/161
Inventor 刘烨斌王立祯戴琼海
Owner TSINGHUA UNIV
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