722 search results - page 21 / 145 » Semantics of multimedia in MPEG-7 |
PCM
2001
Springer
15 years 2 months ago
2001
Springer
A novel motion activity descriptor and its extraction from a compressed MPEG (MPEG-1/2) video stream are presented. The descriptor consists of two parts, a temporal descriptor and ...
CSIE
2009
IEEE
15 years 4 months ago
2009
IEEE
The paper presents an evaluation of four clustering algorithms: k-means, average linkage, complete linkage, and Ward’s method, with the latter three being different hierarchical...
MTA
2006
14 years 9 months ago
2006
In this paper, an object-based video retrieval methodology for search in large, heterogeneous video collections is presented. The proposed approach employs a real-time, compressed-...
ICIP
2001
IEEE
15 years 11 months ago
2001
IEEE
Videotext refers to text superimposed on video frames. A videotext based Multimedia Description Scheme has recently been adopted into the MPEG-7 standard. A study of published wor...
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ICMCS
2007
IEEE
15 years 4 months ago
2007
IEEE
— An important problem in color based image retrieval is the lack of efficient way to represent both the color and the spatial structure information with single descriptor. To so...