Method for automatically converting single face front photo into three-dimensional (3D) face model

A 3D face and automatic conversion technology, applied in 3D modeling, image data processing, instruments, etc., can solve the problems of high cost, difficult to be widely used, complex realization principle, less involved, etc., and achieve the effect of easy animation processing

Active Publication Date: 2014-02-26
烟台三蒂计算机技术有限公司
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Problems solved by technology

[0007] The implementation principles of methods (1) and (2) are complicated, and are currently limited to theoretical research, and practical applications rarely involve
Although the method (3) is accurate in modeling, it is expensive and difficult to be widely used

Method used

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  • Method for automatically converting single face front photo into three-dimensional (3D) face model
  • Method for automatically converting single face front photo into three-dimensional (3D) face model

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Embodiment Construction

[0021] The embodiment is a complete set of schemes completed by the unity of several modules, which can be applied to the automatic extraction module of face feature points from pictures, the standard three-dimensional face model establishment module, the standard three-dimensional face model vertex position adjustment module, and the three-dimensional face model In a system composed of vertex map UV coordinate calculation modules; for specific steps, refer to figure 2 :

[0022] Step a: The user inputs a picture of a positive person, and the format of the picture is not limited. The face photo processing module processes the image in gray scale to obtain and output the face depth information.

[0023] Step b: The face feature point automatic extraction module selects the corresponding FaceSDK library according to the image format.

[0024] Step c: use the FaceSDK library corresponding to the face feature point automatic extraction module of the picture, use the FaceSDK lib...

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Abstract

The invention relates to a method for automatically converting a single face front photo into a three-dimensional (3D) face model. The method is characterized by comprising the steps of a, inputting a front people picture; b, extracting and partitioning characteristic points; c, establishing a standard 3D face model; d, dividing vertexes of the standard face model into groups, and separating out point groups of the five sense organs, wherein the point groups of the five sense organs can be selectively formed by vertex groups of eyebrows, eyes, a nose, a mouth and a face contour; e, performing overall zooming on the standard 3D face model by using a vertex position adjusting module of the standard 3D face model; f, adjusting the vertex position adjusting module of the standard 3D face model; g, finishing the reconstruction of the entire standard 3D face model. The method provided by the invention can be used for automatically converting one face front photo into a 3D face and restoring a real face to the maximum extent in a way of according with face biological characteristics so as to facilitate subsequent animation processing.

Description

[technical field] [0001] The invention belongs to a three-dimensional human face synthesis method, in particular to a method for automatically converting a single frontal photo of a human face into a three-dimensional human face model. [Background technique] [0002] At present, through the technology of converting a single frontal face photo into a 3D face, the general process is to extract features from the photo, deform the standard model, and map the skin texture. Although this technology can reconstruct 3D faces to a certain extent, on the one hand, it cannot restore the real face to the greatest extent; Limitations, especially not conducive to later facial animation and higher-level technical applications. [0003] Summarizing the existing 3D face synthesis technology, the main methods are as follows: [0004] (1) Using triangular spline surface for facial modeling and research; [0005] (2) Synthesized a 3D face model from two front and side images and made a simpl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/00
Inventor 徐小明徐宇夏敏
Owner 烟台三蒂计算机技术有限公司
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