Title :
Research on ROI extraction of color image
Author :
Ma, Max Ying ; He, X.-L. ; Chen, Z.-Z. ; Dong, C.-L.
Author_Institution :
Dept. of Math. & Stat., Huazhong Normal Univ., Wuhan, China
Abstract :
This paper studied a new method of ROI extraction based on quaternion matrix. Firstly, the image is cut into sub-blocks, and the Candidate region is gained by image entropy. Then the greatest expression of sub-blocks is obtained by SVD of quaternion matrices, and the relationship between the image blocks is found according to the definition of quaternion inner product. At last, dimensionality reduction of incidence matrix is carried out with Isomap, and in this process the ROI is extracted. The results of experiments confirm the feasibility and efficiency of this method.
Keywords :
feature extraction; image colour analysis; number theory; singular value decomposition; statistics; SVD; color image; image entropy; image sub-block; incidence matrix; isomap; quaternion matrix; region of interest extraction; Analytical models; Color; Image retrieval; Matrix decomposition; Quaternions; Singular value decomposition; Image blocking; Image information entropy; Isomap; Quaternion; region of interest; singular value decomposition;
Conference_Titel :
Intelligent Control and Automation (WCICA), 2010 8th World Congress on
Conference_Location :
Jinan
Print_ISBN :
978-1-4244-6712-9
DOI :
10.1109/WCICA.2010.5554053
