In this paper, we propose a new design algorithm for the asymmetrical RVLC using the property of the Huffman code and the average length function. In addition, comparing the robustness of RVLCs shows that proposed efficient asymmetrical …

Abstract: In this paper, we propose several generic algorithms that can construct symmetric and asymmetric reversible variable length codes (RVLC). RVLC, adopted in emerging video coding standards such as MPEG-4 and H.263+, can be used to enhance the corresponding error resilience capability in the presence of transmission bit errors.

2002年8月6日 · Proposes some reversible variable length codes (RVLCs) which can be decoded instantaneously both in the forward and backward directions and have high transmission efficiency. These codes can be used, for example, in the backward reconstruction of video signals from the data last received when some signal is lost midway in the transmission.

2003年2月1日 · Reversible variable length codes (RVLCs) have been used to enhance the error-resilient capability of variable length codes (VLCs). A fast and simple new algorithm that can be used to construct asymmetrical RVLCs is to be proposed here. It generates asymmetrical RVLCs by means of extending the leaf nodes of the Huffman tree.

In recent days, the reversible variable-length code (RVLC) has been introduced to reduce the effect of channel errors in the coded bitstream. In RVLC with resynchronization, we can decode the bitstream both in the forward and backward directions and recover unaffected video data as much as possible from the received errone-

2006年4月23日 · Reversible variable length codes (RVLCs) have received much attention due to their excellent error resilient capabilities. In this paper, a novel construction algorithm for symmetrical RVLC is proposed which is independent of the Huffman code. The proposed algorithm’s codeword assignment is only based on symbol occurrence probability.

2016年8月20日 · 可逆变长编码（ReversibleVariableLengthCodes，简称RVLCs），当遇到传输错误时，充分利用了可用的数据，错误恢复能力强于VLCs。 本文对有代表性的RVLCs的码表构成，解码算法及其实现进行介绍，并给出本文设计的MPEG－4RVLCs解码器的结构及VLSI实现结果。

2004年10月24日 · In this paper, we propose a new design algorithm for efficient symmetrical and asymmetrical RVLCs by employing essential information from the Huffman code and the property of the average length function. The proposed algorithm has demonstrated improved coding efficiency over existing RVLC algorithms.

We propose the use of reversible variable length codes (RVLC) to solve this problem. RVLC not only prevents error propagation in one segment but also efficiently detects the distorted portion of the bitstream due to their capability of two-way decoding. This would allow the recovery of a large portion of data from a corrupted segment.

2004年11月24日 · In this paper, we propose a new design algorithm for efficient symmetrical and asymmetrical RVLCs by employing essential information from the Huffman code and the property of the average length...