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In order to further improve the recognition rate and computing efficiency of modular 2DPCA in face recognition, an improved modular 2DPCA method based on image segmentation is proposed. Firstly, segmentation of threshold value optimization is utilized to segment face image of training samples into several non-overlapping sub-image spaces so that the pixel number has uniform distribution in each sub-image...
Based on the idea of collaborative representation, a novel approach CRC-GLasso is proposed for face recognition. Our main contributions lie in two aspects: 1) Instead of sparse representation, collaborative representation is employed to compute sparse representations of face images to solve the ‘lack of samples’ problem. The reason is that face images of different classes share similarities, and some...
As data of information times increasing, Data mining has been widely used in every walk of life. This paper systemly analysises course and key technique of data mining based on summarizing concept of data mining. introduces data mining application in modern logistics system, points out that data mining can distill useful data form numerous and jumbled information and will offer powerful sustainment...
The Signed Direct Graph (SDG) can simply and effectively describe complex causal-effect relationships, and has very large capacity of containing process potential information. To overcome the shortages in the traditional SDG model, this paper put forward a SDG modeling method integrate smoothly with Case-based Reasoning (CBR) technique based on the present SDG modeling method, which is represented...
In this paper, we propose a novel palmprint verification scheme named as Orthogonal Code based on multiple 2D Orthogonal Gabor Phase feature. A palmprint image contains various features with multiple orientations, so only a single orientation in the palmprint can not distinguish a subject well. The 2D Orthogonal Gabor filters with different orientations are employed to extract texture information...
The intelligent help system (IHS) is an important assistant platform, especially in online teaching system. At present most search methods of the help systems are mainly based on keyword matches in database query or hierarchical classifications. The outstanding problem is that users are required to have a certain ability of organizing Keywords, otherwise insufficient keywords would limit the query,...
A new multiple faces detection method based on facial features is proposed, which gets the face candidates with the help of skin color and makes use of wavelet express of images and the principal component analysis (PCA) to obtain the eigenvectors distinguishing faces and non-faces, and modifies Bayesian classifier to detect multiple faces of input images. ??, the parameter of the modified rules,...
In this paper, a new algorithm of face detection based on differential images and PCA in color image is proposed which modified the eigenface technique. First, skin picking-up is carried out by color analysis of an image. Then, for finding the exact positions of faces, a finer matching is performed by eigenface in these detected fields and a mosaic template is used to suppress the false face. Considering...
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