Image analysis – Image compression or coding – Interframe coding
Reexamination Certificate
2004-04-14
2011-10-18
Mariam, Daniel (Department: 2624)
Image analysis
Image compression or coding
Interframe coding
C382S300000
Reexamination Certificate
active
08041134
ABSTRACT:
A motion compensation apparatus to provide block-based motion compensation, and a method thereof. A first motion compensation interpolator calculates a first interpolation pixel by reading a first and a second pixel corresponding to a motion vector of an estimated current block respectively from a current and a previous frame or field. A second motion compensation interpolator calculates a second interpolation pixel by reading a third and a fourth pixel corresponding to a motion vector of peripheral blocks adjacent to the current block respectively from the inputted current and previous frame or field. A candidate interpolation pixel calculator calculates a candidate interpolation pixel by allocating a predetermined weight to the first and the second interpolation pixels, among the current blocks. A motion analyzer analyzes the motion vectors of the current block and the peripheral blocks, and determines discontinuities between the blocks. A final interpolation pixel selector selects either of the first interpolation pixel and the candidate interpolation pixel as a final interpolation pixel, according to the discontinuities determined at the motion analyzer. Accordingly, by applying an overlap block motion compensation according to discontinuities between the current and the peripheral blocks, an image can be provided in which the block artifacts are removed or reduced.
REFERENCES:
patent: 6430316 (2002-08-01), Wilkinson
patent: 2000-299864 (2000-10-01), None
patent: 1996-28436 (1996-07-01), None
patent: 1001442950000 (1998-04-01), None
patent: 1020010045433 (2001-06-01), None
patent: WO 99/38316 (1999-07-01), None
J.-R. Ohm: “Motion Grid Interpolation with Simple Contour Adaptation” Proceedings of International Picture Coding Symposium PCS'96, Mar. 13, 1996, pp. 285-290, XP002290774 Melbourne, Australia.
Chinese Office Action issued on Dec. 9, 2005 in Chinese Appln 200410044769X.
G. Heising et al.; “Wavelet-based very low bit-rate video coding using image warping and overlapped block motion compensation”; IEEE Proceedings: Vision, Image and Signal Processing, vol. 148, No. 2, Apr. 2001; pp. 93-101.
Byung-Tae Choi et al.; “New Frame Rate Up-Conversion Using Bi-Directional Motion Estimation”; IEEE Transactions on Consumer Electronics, vol. 46, No. 3, pp. 603-609.
Hur Bong-soo
Lee Sung-hee
Mariam Daniel
Rice Elisa
Samsung Electronics Co,. Ltd.
Stanzione & Kim LLP
LandOfFree
Apparatus to provide block-based motion compensation and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus to provide block-based motion compensation and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus to provide block-based motion compensation and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4268503