Image analysis – Histogram processing – For setting a threshold
Reexamination Certificate
2006-05-30
2006-05-30
Wu, Jingge (Department: 2623)
Image analysis
Histogram processing
For setting a threshold
C382S171000, C382S173000
Reexamination Certificate
active
07054485
ABSTRACT:
A method for detecting edges in an image is disclosed along with corresponding apparatus and system for accurately extracting edges in the image. The edge detecting apparatus comprises a reading means, an image gray-level statistical means, an image classification means, a segmenting threshold generating means, an edge criterion determining means, and an image edge extracting means. The present invention realizes a reliable and accurate method for detecting edges in an image so as to extract edges in various file images.
REFERENCES:
patent: 4722008 (1988-01-01), Ibaraki et al.
patent: 5379130 (1995-01-01), Wang et al.
patent: 5583659 (1996-12-01), Lee et al.
patent: 5754312 (1998-05-01), Fujimoto et al.
patent: 6094508 (2000-07-01), Acharya et al.
patent: 6192153 (2001-02-01), Suzuki et al.
patent: 6813386 (2004-11-01), Noguchi et al.
patent: 0096219 (1983-12-01), None
patent: 61-194968 (1986-08-01), None
patent: 6-150059 (1994-05-01), None
patent: 8-149297 (1996-06-01), None
Perez et al., “Dynamic Threshold Selection For Image Segmentation of Natural Structures Based Upon a Performance Criterion”, 3ECPA-3 European Conf. On Precision Agriculture, Montpellier. Jun. 2001.
Kittler et al., “Minimum Error Thresholding”, Pattern Recognition vol. 19 No. 1 p. 41-47, 1985.
Krishnapuram, Handbook of Fuzzy Computation, Chapters F7.3-F7.4, 1998.
Nobuyuki Otsu, “A Threshold Selection Method from Gray-Level Histograms,” IEEE Trans. On Systems, Man, and Cybernetics, vol. SMC-9, No. 1, pp. 62-66, Jan. 1979.
Oivind Due Trier and Anil K. Jain, “Goal-Directed Evaluation of Binarization Methods,” IEEE Trans. On Pattern Analysis And Machine Intelligence, vol. 17, No. 12, pp. 1191-1201, Dec. 1995.
Runsheng Wang,Image Analysis, Section 3.6.2 (Oct. 1995, ISBN 7-81024-313-6).
Yujin Zhang,Image Segmentation, pp. 9-19 (Feb. 2001, ISBN 7-03-007241-3).
Henstock, P.V. et al., “Automatic Gradient Threshold Determination for Edge Detection”, IEEE Trans. on Image Proc., vol. 5, No. 5, May 1996, pp. 784-787.
Otsu, N., “A Threshold Selection Method from Gray-Level Histograms”, IEEE Trans. on Systems, Man and Cybernetics, vol. 9, No. 1, Jan. 1979, pp. 62-66.
Rosin, P., “Edges: saliency measures and automatic thresholding”, Mach. Vision and Applns., vol. 9, No. 4, 1997, pp. 139-159.
Search Report, dated Aug. 3, 2004, in EP 02 25 5149.
Li Yulin
Wang Jie
Zhao Hongsheng
Kuhn Jordan
Wu Jingge
LandOfFree
Image processing method, apparatus and system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Image processing method, apparatus and system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image processing method, apparatus and system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3525619