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Face data enhancement method based on key point disturbance technology

A key point, key point location technology, applied in the field of face alignment, can solve problems such as insufficient training samples

Active Publication Date: 2015-11-25
SHANGHAI JIAO TONG UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, this patented technology still does not solve the above-mentioned problem of insufficient training samples

Method used

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  • Face data enhancement method based on key point disturbance technology
  • Face data enhancement method based on key point disturbance technology
  • Face data enhancement method based on key point disturbance technology

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Embodiment Construction

[0048] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0049] Such as figure 1 Shown, is the general flow chart of the method of an embodiment of the present invention:

[0050] The first step is to detect key points {P(x, y)} on the image I(x, y) n , and find out the positions of three important key points P 1 (x 1 ,y 1 ), P 2 (x 2 ,y 2 ), P 3 (x 3 ,y 3 ), the specific steps include:

[0051] 1.1) Convert the original color image into a grayscale image I(x, y);

[0052] 1.2) Use the face detection algorithm based on the ViolaandJones fram...

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Abstract

The invention discloses a face data enhancement method based on key point disturbance technology, comprising steps of utilizing a face calibration method based on the human face key point technology, performing disturbance on the key point position, and obtaining a new human face image through linear transformation, affine transformation, and partitioning affine transformation . The human face calibration method based on the human face key point technology performs the human face calibration by the linear transformation, the affine transformation, and the partitioning affine transformation, performs disturbance on the position of the key point, and enabling one human face image to generate a plurality of human face images. The face data enhancement method based on the key point disturbance technology can solve the problem that the data is insufficient in the process of human face recognition training, generates the plurality of images through one human face image, increases the training quantity and improves the accuracy of the human face recognition.

Description

technical field [0001] The present invention relates to a face alignment method in the technical field of face recognition, in particular to a face data enhancement method based on key point perturbation technology. Background technique [0002] Face recognition technology is an important branch of computer vision, which has always had high academic research value and broad market application prospects. A complete face recognition system includes the following four technologies: face detection, face alignment, face feature extraction, and face comparison. The face feature extraction is a very critical step in the face recognition system. Commonly used face feature extraction techniques include: single-layer artificial features, two-layer Encoding features, and hierarchical features learned by deep learning methods. Among them, the high-level features obtained by deep learning have stronger descriptive capabilities because they can express more advanced semantic information...

Claims

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Application Information

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IPC IPC(8): G06K9/00
CPCG06V40/171G06V40/16
Inventor 杨小康晏轶超潘岑蕙徐奕
Owner SHANGHAI JIAO TONG UNIV
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