Pulse or digital communications – Bandwidth reduction or expansion – Television or motion video signal
Reexamination Certificate
2011-01-11
2011-01-11
Perungavoor, Sath V (Department: 2624)
Pulse or digital communications
Bandwidth reduction or expansion
Television or motion video signal
C348S699000
Reexamination Certificate
active
07869518
ABSTRACT:
A fast motion estimation apparatus and method in which motion estimation is carried out on a current block of a current frame of video image data with reference to a corresponding matching block of a previous frame are provided. The fast motion estimation apparatus includes: a determination unit which determines whether an SAD between pixel values of a current block of a current frame and a corresponding matching block of a previous frame is greater than a predefined threshold; an initial search unit which performs an initial search when the SAD is greater than the predetermined threshold to find which search point of a current search pattern is the minimal SAD point and to determine whether the minimal SAD point matches the center of the current search pattern; and a repetitive search unit which performs an iteration search when the minimal SAD point differs from the center of the current search pattern to reset the minimal SAD point to be a center of the current search pattern and to set a number of search points and the size of a search pattern based on from current search pattern to a center of the search window of the previous frame.
REFERENCES:
patent: 6563874 (2003-05-01), Lu
patent: 6590937 (2003-07-01), Ogura et al.
patent: 6671319 (2003-12-01), Chang et al.
patent: 7072398 (2006-07-01), Ma
patent: 7675974 (2010-03-01), Kawashima
patent: 2002/0114394 (2002-08-01), Ma
patent: 2008/0181310 (2008-07-01), Choi et al.
patent: 100286818 (2001-01-01), None
Yao Nie, Kai-Kuang Ma, “Adaptive rood pattern search for fast block-matching motion estimation”, Image Processing, IEEE Transactions on, Dec 2002, vol. 11 , No. 12, pp. 1442-1449, ISSN : 1057-7149.
Chun-Ho Cheung, Lai-Man Po, “A novel rood-diamond search algorithm for fast block motion estimation”, Acoustics, Speech, and Signal Processing, 2002. Proceedings. (ICASSP '02). IEEE International Conference on, vol. 4, pp. IV-3397-IV-3400, ISSN : 1520-6149.
Kai-Kuang Ma, Gang Qiu, “An improved adaptive rood pattern search for fast block-matching motion estimation in JVT/H.26L”, Circuits and Systems, 2003. ISCAS '03. Proceedings of the 2003 International Symposium on, May 25-28, 2003, vol. 2, pp. II-708-II-711, Print ISBN: 0-7803-7761-3.
Xuan-Quang Banh, Yap-Peng Tan, “Adaptive dual-cross search algorithm for block-matching motion estimation”, Consumer Electronics, IEEE Transactions on, May 2004, vol. 50 , No. 2, pp. 766-775, ISSN : 0098-3063.
Wei Zhenyu, Jiang Baochen, Zhang Xudong, Chen Yu, “A new full-pixel and sub-pixel motion vector search algorithm for fast block-matching motion estimation in H.264”, Image and Graphics, 2004. Proceedings. Third International Conference on, Dec. 18-20, 2004, pp. 345-348, print ISBN: 0-7695-2244-0.
‘Adaptive Rood Pattern Search for Fast Block-Matching Motion Estimation’ Nie et al., IEEE Transactions on Image Processing, vol. 11, No. 12, Dec. 2002, pp. 1442-1449.
Kim Byung Gyu
Kim Seon Tae
Mah Pyeong Soo
Song Suk Kyu
Electronics and Telecommunications Research Institute
Ladas & Parry LLP
Perungavoor Sath V
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