Due to the enormous increase in the stored digital contents, search and retrieval functionalities are necessary in multimedia systems. Though processor speed for standard PCs (Per...
In this paper an optimized and efficient technique for keyframes extraction of video sequences is proposed, which leads to selection of a meaningful set of video frames for each g...
A novel digital image watermarking method based on wavelet domain fractal coding is presented in this paper. Employing the invariant parameters of the wavelet domain fractal trans...
When an ad hoc network with limited link capacities is used to transport high-rate, latency-constrained multimedia streams, it is important that routing algorithms not only yield ...
The goal of this communication is to present a weighted likelihood discriminant for minimum error shape classification. Different from traditional Maximum Likelihood (ML) methods...
This paper proposes a practical content-dependent lowpower DCT design with tolerable quality drop. Lowpower issue has become more and more important, especially for portable devic...
We present a streaming media test bed for IP networks. Besides a streaming server and a streaming media client, it consists of an IP network emulator, a high-performance packet ca...
Abstract Secure video communication on mobile handheld devices is challenging mainly due to (a) the significant computational needs of both video coding and encryption algorithms ...
This paper addresses the important issues of error control for video transmission over 3G. Based on the time-varying wireless channel conditions and the essential defects of the t...
This paper investigates performance measures of adaptive echo cancellers for packet-based telephony. It is shown that steady-state echo return loss enhancement (ERLE) does not acc...