A Motion-Compensated Overcomplete Temporal Decomposition for Multiple Description Scalable Video Coding
نویسندگان
چکیده
We present a new multiple-description coding (MDC) method for scalable video, designed for transmission over error-prone networks. We employ a redundant motion-compensated scheme derived from the Haar multiresolution analysis, in order to build temporally correlated descriptions in a t+2D video coder. Our scheme presents a redundancy which decreases with the resolution level. This is achieved by additionally subsampling some of the wavelet temporal subbanbds. We present an equivalent four-band lifting implementation leading to simple central and side decoders as well as a packet-based reconstruction strategy in order to cope with random packet losses.
منابع مشابه
Scalable video compression via overcomplete motion compensated wavelet coding
Recently, there have been a flurry of works on overcomplete motion compensated wavelet coding (OMCWC). In this paper, we address the importance of phase and focus on the design of scalable video coding algorithms within the OMCWC framework. Specifically, our new contributions consist of the following three components: 1) efficient block motion estimation techniques in the wavelet domain includi...
متن کاملFully scalable 3D overcomplete wavelet video coding using adaptive motion compensated temporal filtering
ABSTRACT In this paper, we present a fully scalable 3-D overcomplete wavelet video coder that employs a new and highly efficient 3D lifting structure for adaptive motion compensated temporal filtering (MCTF). Unlike the conventional interframe wavelet video techniques that apply MCTF on the spatial domain video data and then encode the resulting temporally filtered frames using critical sampled...
متن کاملMotion Compensation and the Overcomplete Discrete Wavelet Transform
In this paper, a wavelet-based spatially scalable video coding scheme with in-band prediction is investigated. The discrete wavelet transform is employed for the spatial decomposition of each video frame. A blockwise motion compensated prediction is computed for the individual subbands. For motion compensation the shift-invariant overcomplete discrete wavelet transform is exploited to achieve h...
متن کاملMotion compensated in-band prediction for wavelet-based spatially scalable video coding
In this paper, a wavelet-based spatially scalable video coding scheme with in-band prediction is investigated in combination with JPEG 2000 quantization and arithmetic coding. The wavelet decomposition of each frame of the video data is succeeded by the computation of a blockwise motion compensated prediction for the individual subbands. To achieve half-pixel motion vector accuracy the shift-in...
متن کاملMultiple description scalable coding using wavelet-based motion compensated temporal filtering
Packet delay jitter and loss due to network congestion pose significant challenges for designing and deploying delay sensitive multimedia applications over the best effort packet switched networks such as the Internet. Recent studies indicate that using Multiple Description Coding (MDC) in conjunction with path or server diversity can mitigate these effects. However, the proposed MDC coding and...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- EURASIP J. Image and Video Processing
دوره 2007 شماره
صفحات -
تاریخ انتشار 2007