Title :
Fast motion detection in compressed domain for video surveillance
Author :
Pons, J. ; Prades-Nebot, J. ; Albiol, A. ; Molina, J.
Author_Institution :
Departamento de Informatica de Sistemas y Computadores, Univ. Politecnica de Valencia, Spain
fDate :
4/25/2002 12:00:00 AM
Abstract :
A fast algorithm to detect motion in the compressed domain for video surveillance is presented. The algorithm partially decompresses the video bit stream and performs motion detection from its quantised discrete cosine transform coefficients. The very low computational cost makes this algorithm very useful when real-time motion detection has to be performed simultaneously in several video bit streams
Keywords :
data compression; discrete cosine transforms; image sequences; motion estimation; quantisation (signal); surveillance; video coding; compressed domain; computational cost; fast motion detection; motion detection; partially video bit stream decompression; quantised discrete cosine transform coefficients; real-time motion detection; video bit stream; video surveillance;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20020290
