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Selective Ensemble Face Recognition Method Based on CSJOGA Algorithm

A selective and face recognition technology, which is applied in the new field of multi-classification SVM face recognition, can solve the problems of long code length, slow convergence speed, and slow algorithm convergence, so as to reduce storage and calculation overhead, improve recognition speed, The effect of improving the accuracy rate

Active Publication Date: 2020-07-03
BEIJING UNIV OF TECH
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AI Technical Summary

Problems solved by technology

[0008] Although genetic algorithms have made great progress in theoretical research, there are still a series of problems such as slow convergence speed, low search precision and "premature convergence" in practice and application.
In addition, in practical applications, there are often many factors that affect the optimization problem. If the genetic algorithm is used to solve it, a long code length is required, which will slow down the convergence of the algorithm.

Method used

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  • Selective Ensemble Face Recognition Method Based on CSJOGA Algorithm
  • Selective Ensemble Face Recognition Method Based on CSJOGA Algorithm
  • Selective Ensemble Face Recognition Method Based on CSJOGA Algorithm

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Embodiment Construction

[0020] Stage 1) Extract the HOG feature of the face image, and use PCA to perform feature dimensionality reduction to form an eigenface.

[0021] Step 1. Extract HOG features for multi-category face datasets.

[0022] Step 2. Use PCA to reduce the dimensionality of the face HOG features extracted in step 1, and save it in csv format.

[0023] Step 3. Convert the data set in csv format obtained in step 2 into a format supported by libsvm.

[0024] Phase 2) Use the bagging method to generate multiple data sets, and use multi-class SVM to train separately on the training set.

[0025] Step 4. Bagging the training data set in libsvm format obtained in step 3 to generate 100 new data sets with the same size as the original data set.

[0026] Step 5. The 100 bagging data sets generated in step 4 are trained with multi-class SVM.

[0027] Stage 3) Predict each SVM model on the training set and test set respectively, and add the label column in the data set, and merge into a matrix...

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Abstract

The invention discloses a selective integration face recognition method based on the CSJOGA algorithm, which belongs to the technical field of face recognition, in particular a combined sparse projection-based improved hybrid orthogonal genetic algorithm (CSJOGA), bagging method, selective integration technology, multiple A new approach to face recognition with categorical SVM methods. This method combines minimum spanning tree clustering, joint sparse projection and orthogonal experimental design, and proposes an orthogonal intersection operator based on joint sparse projection. Then the crossover is designed by using the orthogonal experiment method, and a clustering local search strategy is introduced, and a hybrid orthogonal genetic algorithm based on joint sparse projection is proposed. This method can ensure that the correct rate of face recognition can be further improved to a higher level under the premise of greatly reducing the number of integrated classifiers, reducing storage and computing overhead, and effectively improving the speed of face recognition, ensuring that the classification accuracy in practical applications reaches Ideal requirements.

Description

technical field [0001] The invention belongs to the technical field of face recognition, in particular to a new face recognition method based on joint sparse projection improved hybrid orthogonal genetic algorithm (CSJOGA), bagging method, selective integration technology and multi-classification SVM method. Background technique [0002] In recent decades, biometric recognition has received extensive attention in various fields, and has become one of the research hotspots in the field of pattern recognition and machine vision. Among them, face recognition is an important part of biometric recognition. [0003] In face recognition, face feature extraction is one of the key steps. Face feature extraction refers to extracting identification information that is helpful for classification from high-dimensional face data, and removing useless redundant information. [0004] In most cases, face features are divided into global features and local features. Among them, the global ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00G06K9/62
CPCG06V40/168G06V40/172G06F18/2411G06F18/214
Inventor 杨新武王聿铭牛文杰
Owner BEIJING UNIV OF TECH