Image analysis – Image compression or coding
Patent
1998-07-23
2000-12-12
Couso, Jose L.
Image analysis
Image compression or coding
382241, G06K 936
Patent
active
061609161
ABSTRACT:
A sending port makes compressed digital data of continually-tone changing picture or color picture by inputting the continually tone changing picture or color picture, dividing the original picture into regions having pixels of similar tones, making an average tone image by drawing the regions with the average tones, determining boundaries between neighboring regions, extracting branch points at which more than two boundaries joins, extracting turning points at which the gradient turns discontinuously, approximating subboundaries having ends of turning points or branch points by piecewise polynomials, making a subtracting image by subtracting the average tone image from the original picture, and sending the compressed data; transmitting media transmits the compressed data from the sending port to a receiving port through telephone lines, exclusive lines or wireless; the receiving port retrieves the boundaries, the regions, the average tone image, the subtracted image and the original picture.
REFERENCES:
patent: 5978511 (1999-11-01), Horiuchi et al.
Baseri et al., "Region-Based Coding of Images Using a Spline Model", Proceedings of the International Conference on Image Processing, vol. 3, No. conf. 1, 1994, p. 866-870.
Linnan Liu et al., "Optimal Contour Approximation by Deformable Piecewise Cubic Splines", Proceeding of the Computer Society Conference on Computer Vision a Pattern Recognition, 1991, 638-643.
Yasamuto et al., "Corner Detection and Curve Representation Using Cubic B-Splines", Systems and Computer in Japan, 1988, p. 73-80.
Eden et al., "On the Performance of a Contour Coding Algorithm in the Context of Image Coding Part 1: Contour Segment Coding", Signal Processing Euorpean Journal Devoted to the Methods and Application of Signal Processing, vol. 8, No. 4, 1985, p. 381-386.
Liow, Yuh-Tay, "A Contour Tracing Algorithm That Prserves Common Boundries between Regions", Computer Vision Graphics and Image Processing, vol. 53, No. 3, 1990, p. 313-321.
"A Study on adaptable system model and its application to desktop publishing system" by Takahiko Horiuchi, Dissertation, University of Tsukuba, pp. 100-105, 1995.
Couso Jose L.
Dang Duy M.
Tsukuba Software Laboratory Co., Ltd.
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