Multiple Description Coding Schemes for the H.264/AVC Coder
نویسندگان
چکیده
The recent development of multimedia communications across unreliable channels has brought the need for robust coding techniques, such that a partial loss of information does not necessarily imply the loss of the whole video sequence. The implementation of Multiple Description Coding (MDC) schemes based on the H.264/AVC coding standard provides an affordable solution to this problem. This paper presents some MDC schemes that differently exploit the correlation (spatial or temporal) of a video sequence. Several efforts were made in order to develop H.264/AVC standard-compliant MD coders. Finally, the capabilities of the different schemes are evaluated and compared. Keywordsmultiple description coding, video coding, transform coding, H.264, MPEG-4 part 10, rate control, buffer control, coefficients statistics.
منابع مشابه
Low Complexity Integer Transform and High Definition Coding
In H.264/AVC, an integer 4×4 transform is used instead of traditional float DCT transform due to its low complexity and exact reversibility. Combined with the normalization for the integerr transform together, a division-free quantization scheme is used in H.264/AVC. H.264/AVC is the most outstanding video coding standard at far. But at first H.264/AVC targets to low bit-rate coding, and almost...
متن کاملA SNR Scalability Scheme Based on the H.264/AVC Video Coding Standard
This paper proposes an efficient SNR scalable extension for the H.264/AVC video coding standard. The coder consists of two motion compensated sub-coders generating the base and the enhancement layers. The base layer is fully H.264 compatible while the enhancement layer bitstream has been modified. The enhancement layer coder uses the information of both layers in order to improve the coding eff...
متن کاملLayered Multiple Description Coding For Robust Video Transmission Over Wireless Ad-Hoc Networks
This paper presents a video transmission system using layered multiple description (coding (MDC) and multi-path transport for reliable video communications in wireless ad-hoc networks. The proposed MDC extends a quality-scalable H.264/AVC video coding algorithm to generate two independent descriptions. The two descriptions are transmitted over different paths to a receiver in order to alleviate...
متن کاملIN PRESS MSG Encoder Dynamic Slice Group Interchanger SSG Encoder Description - 1 Encoder Description - 2 Encoder Video Sequence Description 1 Description
In this paper, an H.264/AVC-based multiple description video coding scheme is proposed. It utilizes the advanced video coding tools and features provided in H.264/ AVC to introduce redundancy into descriptions. Two independently decodable descriptions are generated, each consisting of two slice groups. One of them, called main slice group (MSG), is encoded normally as main information. The othe...
متن کاملH.264/AVC-Based Multiple Description Coding For Wireless Video Transmission
Multiple description coding is a promising solution for robust video communication over non-prioritized and unpredictable networks. In this paper, we propose a new multiple description coding scheme for the H.264/AVC video coding standard which enables adaptive and robust video transmission in wireless networks. In the proposed MDC, each description has a different prediction loop and contains ...
متن کامل