Title :
Hierarchical motion estimation in Hadamard transform domain
Author :
Choi, Sun-Young ; Chae, Soo-Ik
Author_Institution :
Sch. of Electr. Eng., Seoul Nat. Univ., South Korea
fDate :
12/9/1999 12:00:00 AM
Abstract :
The authors propose a hierarchical motion estimation algorithm in which the sum of the absolute difference in the Hadamard transform domain is used as its matching measure. The computational complexity of this algorithm was reduced to ~5.6% while the image degradation of its reconstructed image quality was <0.1 dB on average, compared with that of the full search in the pixel domain
Keywords :
Hadamard transforms; computational complexity; image reconstruction; motion estimation; video coding; Hadamard transform domain; absolute difference; computational complexity; hierarchical motion estimation; hierarchical motion estimation algorithm; image degradation; matching measure; pixel domain; reconstructed image quality;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19991502
