Image analysis – Image enhancement or restoration – Object boundary expansion or contraction
Patent
1996-01-19
1998-08-25
Vu, Kim Yen
Image analysis
Image enhancement or restoration
Object boundary expansion or contraction
382298, G06K 940
Patent
active
057991138
ABSTRACT:
Contraction and expansion of video images are important capabilities for multi-media, television picture-in-picture functionality, digital video archiving, browsing, and video transmission. A video image expansion process is used to expand contracted images. The video image expansion process uses a non-linear median filter to interpolate the original pixel values of the contracted image. The non-linear median filter provides good approximations of the original pixel values including pixel values in high contrast regions, such as boundary regions. The video image expansion process is fast, and provides excellent results for low bitrate video coding used for contracting and expanding video images. The video compression image expansion scheme is used with video compression encoding schemes such as MPEG to produce high quality expanded video images from contracted video images.
REFERENCES:
patent: 3873971 (1975-03-01), Levine
patent: 4745633 (1988-05-01), Waksman et al.
patent: 4751742 (1988-06-01), Meeker
patent: 4754492 (1988-06-01), Malvar
patent: 4802005 (1989-01-01), Kondo
patent: 4912549 (1990-03-01), Altman et al.
patent: 4999705 (1991-03-01), Puri
patent: 5020121 (1991-05-01), Rosenberg
patent: 5067014 (1991-11-01), Bergen
patent: 5070465 (1991-12-01), Kato et al.
patent: 5086477 (1992-02-01), Yu et al.
patent: 5103306 (1992-04-01), Weiman et al.
patent: 5117287 (1992-05-01), Koike et al.
patent: 5148497 (1992-09-01), Pentland et al.
patent: 5155594 (1992-10-01), Bernstein et al.
patent: 5214504 (1993-05-01), Toriu et al.
patent: 5251030 (1993-10-01), Tanaka
patent: 5258836 (1993-11-01), Murata
patent: 5259040 (1993-11-01), Hanna
patent: 5294979 (1994-03-01), Patel et al.
patent: 5295201 (1994-03-01), Yokohama
patent: 5329311 (1994-07-01), Ward et al.
patent: 5376971 (1994-12-01), Kadono et al.
patent: 5424783 (1995-06-01), Wong
patent: 5459519 (1995-10-01), Scalise et al.
patent: 5467442 (1995-11-01), Tsuboto et al.
patent: 5517327 (1996-05-01), Nakatani et al.
patent: 5572258 (1996-11-01), Yokoyama
patent: 5574572 (1996-11-01), Malinowski et al.
patent: 5598215 (1997-01-01), Watanabe
patent: 5621660 (1997-04-01), Chaddha et al.
patent: 5692063 (1997-11-01), Lee et al.
Fogg, Survey of Software and Hardware VLC Architectures, SPIE vol. 2186, pp. 29-37.
Video Coding for Low Bitrate Communication, Drat Recommendation H.263, International Telecommunication Union, Dec. 1995, 51 pages.
Foley et al., Computer Graphics Principles and Practice, Addison-Wesley Publishing Company, Inc., 1990, pp. 835-851.
Nieweglowski et al., A Novel Video Coding Scheme Based on Temporal Prediction Using Digital Image Warping, IEEE Transactions on Consumer Electronics, vol. 39, No. 3, Aug. 1993, pp. 141-150.
Orchard, Predictive Motion-Field Segmentaion for Image Sequence Coding, IEEE Transactions on Circuits and Systems for Video Technology, vol. 3, No. 1, Feb. 1993, pp. 54-70.
Seferidis et al. General Approach to Block-Matching Motion Estimation, Optical Engineering, vol. 32, No. 7, Jul. 1993, pp. 1464-1474.
Chang et al., Transform Coding of Arbitrarily-Shaped Image Segments, Proceedings of the ACM Multimedia 93, Aug. 1, 1993, pp. 83-90.
Chen et al., A Block Transform Coder for Arbitrarily Shaped Image Segments, ICIP-94, vol. I/III, Nov. 13, 1994, pp. 85-89.
Franke et al., Constrained Iterative Restoration Techniques: A Powerful Tool in Region Oriented Texture Coding, Signal Processing IV: Theories and Applications, Sep. 1988, pp. 1145-1148.
Pennebaker et al., JPEG Still Image Data Compression Standard, Chapter 20, pp. 325-349, 1993.et al.
Wong, Nonlinear Scale-Space Filtering and Multiresolution System, 1995 IEEE, pp. 774-787.
Defee et al., Nonlinear Filters in Image Pyramid Generation, 1991 IEEE, pp. 269-272.
Ranka et al, Efficient Serial and Parallel Algorithms for Median Filtering, 1991 IEEE, pp. 1462-1466.
Haddad et al, Digital Signal Processing, Theory, Applications, and Hardware, 1991, pp. 257-261.
PCT/US96/15892 search report dated Feb. 17, 1997.
PCT/US96/15892 search report dated Apr. 28, 1997.
PCT/US97/04662 search report dated Jun. 9, 1997.
Henri Sanson, "Motion affine models identification and application to television image coding," Visual Communications and Image Processing '91: Visual Communication, 1605:570-581 (Nov. 11, 1991).
Michael Hotter, "Optimization and Efficiency of an Object-Oriented Analysis-Synthesis Coder," IEEE Transactions on Circuits and Systems for Video Technology, 2:181-194 (Apr. 4, 1994).
A. Kakhor and F. Lari, "Edge-Based 3-D Camera Motion Estimation with Application to Video Coding," IEEE Transactions on Image Processing, 2:481-498 (Oct. 2, 1993).
Francios G. Meyer and Patrick Bouthemy, "Region-Based Tracking Using Affine Motion Models in Long Image Sequences," Image Understanding, 60:119-140 (Sep. 1994).
Ozer, "Why MPEG is Hot," PC Magazine, pp. 130-131 (Apr. 11, 1995).
Rabbani and Safranek, "Image and Video Compression," SPIE Proceedings Series, vol. 2186, pp. 29-37 (Feb. 1994).
Microsoft Corporation
Vu Kim Yen
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