Title :
Optimal object-based scalability for video content adaptation according to the usage environment
Author :
Doulamis, Anastasios ; Doulamis, Nikolaos
Author_Institution :
Dept. of Electr. & Comput. Eng., Nat. Tech. Univ. of Athens, Greece
Abstract :
Efficient video content adaptation requires techniques for content analysis and the development of appropriate mechanisms for content scaling in terms of the network properties, terminal devices characteristics and users´ preferences. In this paper, we propose an adaptive optimal rate distortion scheme able to allocate different priorities for each video object with respect to the users´ needs, network platform capabilities and terminal characteristics without violating the target bit rate of the sequence. In this paper, we consider that video objects have been already detected by a content segmentation algorithm. The proposed scheme minimizes the effects of objects on non-interest compared to objects of interest.
Keywords :
image segmentation; image sequences; rate distortion theory; adaptive optimal rate distortion scheme; content analysis; content scaling; content segmentation algorithm; optimal object-based scalability; video content adaptation; Bit rate; Computer networks; Encoding; Frequency; Layout; Optimal control; Rate-distortion; Scalability; Spatial resolution; Video sequences;
Conference_Titel :
Signal Processing Systems Design and Implementation, 2005. IEEE Workshop on
Print_ISBN :
0-7803-9333-3
DOI :
10.1109/SIPS.2005.1579945