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Face angle determination method and system

A technology for determining the method and angle, which is applied in three-dimensional object recognition, instrument, character and pattern recognition, etc. It can solve the problem of difficulty in estimating the face pose and achieve the effect of accurate face angle.

Inactive Publication Date: 2016-03-09
广东金杭科技有限公司
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Problems solved by technology

Although the classification-based method can easily find the change direction of the face pose, it is still difficult to use this parameter to estimate the face pose

Method used

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  • Face angle determination method and system

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Embodiment Construction

[0035] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0036] refer to figure 1 As shown, the present invention provides a kind of human face angle determination method, comprises the following steps:

[0037] Step 1. Obtain the two-dimensional face photo of the target person, and preprocess the face photo;

[0038] Step 2, extracting the preprocessed face feature information;

[0039] Step 3, input the facial feature information extracted in step 2 into a standard multidimensional human face model building module to set up a multidimensional human face photo;

[0040] Step 4, extract the face feature information in the multi-dimensional face photo, this face feature information at least includes t...

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Abstract

The invention discloses a face angle determination method and system. The method comprises the steps of: 1, obtaining a two-dimensional face photograph of a target person, and carrying out pre-processing on the face photograph; 2, extracting face characteristic information after the pre-processing; 3, inputting the face characteristic information extracted in the step 2 into a standard multidimensional face model establishing module, and establishing a multidimensional face photograph; 4, extracting face characteristic information in the multidimensional face photograph, wherein the face characteristic information at least includes coordinate values of a left pupil Le, a right pupil Re, a nose tip point J and a nose saddle point A; 5, calculating a horizontal deflection angle X of a face and a first vertical deflection angle Y and a second vertical deflection angle Z of the face; and 6, displaying the horizontal deflection angle X, the first vertical deflection angle Y and the second vertical deflection angle Z through a display module. The face angle determination method and system have the advantages that the error is small, and the efficiency is high.

Description

technical field [0001] The invention relates to the technical field of face angle judgment, in particular to a face angle judgment method and system thereof. Background technique [0002] At present, there are generally three types of methods for face pose estimation at home and abroad: model-based methods, face appearance-based methods, and classification-based methods. [0003] The model-based method is to use the geometric model and feature points of the face to establish a corresponding relationship between the model and the image, and then realize the estimation of the face pose by ensemble or other methods. Firstly, the feature points are detected, usually eyes, nose and mouth are used; then the 3D model of the face is built, and the 3D feature points are continuously projected to approach the feature points on the image. This method currently has the disadvantage of high error rate. [0004] The method based on the appearance of the face is to assume that there is a ...

Claims

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Application Information

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IPC IPC(8): G06K9/00
CPCG06V20/64G06V40/168
Inventor 吴建忠
Owner 广东金杭科技有限公司
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