Results 151 to 160 of about 1,686,085 (194)
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Reconstruction of the block matching profiles
Human Immunology, 1999Block matching is a valuable tool for selecting donors for bone marrow transplantation. Identical, electrophoretic profiles of unrelated bone marrow donor-recipient pairs have been shown to be associated with long-term survival and a reduction of graft versus host disease (GVHD).
N, Ketheesan +6 more
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Mean Predictive Block Matching (MPBM) for fast block-matching motion estimation
3rd European Workshop on Visual Information Processing, 2011In this paper, a new technique called Mean Predictive Block Matching (MPBM) is proposed. This technique is based on adaptive rood pattern search algorithm, in which the size is dynamically determined for each macroblock, based on the mean of two motion vectors of the neighboring macroblocks instead of one as is the case with adaptive rood patter search.
Zaynab Ahmed +2 more
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VLSI Architectures For Block Matching Algorithms
SPIE Proceedings, 1988Architectures for the realization of block matching algorithms are discussed, with emphasis on highly concurrent systolic array processors. A mapping methodology for systolic arrays known from the literature is applied to block matching algorithms. Examples of two-dimensional and one-dimensional systolic arrays are presented.
Thomas Komarek, Peter Pirsch
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Block matching algorithm based on local codirectionality of blocks
2009 IEEE International Conference on Multimedia and Expo, 2009In this paper based on statistical analysis performed on a number of video sequences with different motion characteristics, we show that strong correlation exists between the direction of motion of a block and those of its neighboring blocks. Secondly, we show that a block moves in the same direction as a neighboring block that its prediction vector ...
S. Mohamad R. Soroushmehr +2 more
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Video tracking using block matching
Proceedings 2003 International Conference on Image Processing (Cat. No.03CH37429), 2004A tracking algorithm that predicts the object contour using motion vector information is proposed in this paper. Tracking is achieved by predicting the object boundary using motion vectors, followed by contour update, using occlusions/disocclusion detection. An adaptive block-based approach has been used for estimating motion between frames.
Karthik Hariharakrishnan +3 more
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A strategy of matching blocks at multi-levels
International Journal of Intelligent Systems, 2002Summary: We propose a size-variable block-matching algorithm for motion-vector estimation. The proposed algorithm dynamically determines the search area and the size of a block. We exploit the constraint of small velocity changes of a block through time to determine the origin of the search area.
Seok-Woo Jang, Hyung-Il Choi
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Fast full-search block matching
IEEE Transactions on Circuits and Systems for Video Technology, 2001A fast full-search block-matching algorithm is developed, The matching criterion is the sum of absolute differences or the mean-square error, The algorithm evaluates lower bounds for the matching criteria for subdivided blocks in order to reduce the number of search positions.
Michael Brünig, Wolfgang Niehsen
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Enhancement Techniques for Intra Block Matching
Multimedia and Expo, 2007 IEEE International Conference on, 2007The intra prediction techniques employed in H.264 predict the intensities of the pixels of the current block from the neighboring pixels. Coding of intra slices requires a large number of bits. Therefore, to improve the coding efficiency, another intra prediction technique is applied with several proposed enhancement techniques including best match ...
Kai Lam Tang, King Ngi Ngan
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Block-Matching Based Image Compression
2009 Ninth IEEE International Conference on Computer and Information Technology, 2009In this paper, the motion estimation technique used in video compression is extended to still image compression, for which we called it the Block-Matching based imagecompression. Using a small amount of sampled data in thespatial domain, an approximate image of the original image is reconstructed.
Yunxia Liu 0001 +2 more
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A Phase Transition for the Distribution of Matching Blocks
Combinatorics, Probability and Computing, 1996We show distributional results for the length of the longest matching consecutive subsequence between two independent sequencesA1,A2, …,AmandB1,B2, …,Bnwhose letters are taken from a finite alphabet. We assume thatA1,A2, … are i.i.d. with distribution μ andB1,B2, … are i.i.d. with distribution ν.
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