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Weighted Adaptive Huffman Coding
2020 Data Compression Conference (DCC), 2020Huffman coding is known to be optimal in case the alphabet is known in advance, the set of codewords is fixed and each codeword consists of an integral number of bits. If one of these conditions is violated, optimality is not guaranteed. In the dynamic variant of Huffman coding the encoder and decoder maintain identical copies of the model; at each ...
Shmuel T Klein, Dana Shapira
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A fast-adaptive Huffman coding algorithm
IEEE Transactions on Communications, 1993The Huffman code in practice suffers from two problems: the prior knowledge of the probability distribution of the data source to be encoded is necessary, and the encoded data propagate errors. The first problem can be solved by adaptive coding, while the second problem can be partly solved by segmenting data into segments.
Wei-Wei Lu, Michael Paul Gough
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An Adaptive Huffman Decoding Algorithm for MP3 Decoder
2010 Fifth IEEE International Symposium on Electronic Design, Test & Applications, 2010This paper proposes a novel array data structure to represent Huffman code table and an adaptive algorithm for Huffman decoding based on Single-side Growing Huffman Coding approach which provides a memory efficient and high-speed decoding algorithm. The search time of the proposed algorithm for finding a symbol is the ceiling of (CL/4) where CL is the ...
Hoang-Anh Pham
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Huffman Coding-Based Adaptive Spatial Modulation
IEEE Transactions on Wireless Communications, 2017Antenna switch enables multiple antennas to share a common RF chain. It also offers an additional spatial dimension, i.e., antenna index, that can be utilized for data transmission via both signal space and spatial dimension. In this paper, we propose a Huffman coding-based adaptive spatial modulation that generalizes both conventional spatial ...
Wei Wang, Wei Zhang
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Adaptive Region Based Huffman Compression Technique with Selective Code Interchanging
Advances in Intelligent Systems and Computing, 2012Adaptive version of loss-less Region Based Huffman compression techniques are proposed where a proposed region formation algorithm is used to divide the input file into a number of regions that adapts region size depending on the ASCII value difference of symbols. Huffman codes are obtained for entire file after formation of regions. Code interchanging
Utpal Nandi, Jyotsana Kumar Mandal
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AHCM: Adaptive Huffman Code Mapping for Audio Steganography Based on Psychoacoustic Model
IEEE Transactions on Information Forensics and Security, 2019Most current audio steganographic methods are content non-adaptive which have poor security and low embedding capacity. This paper proposes a generalized adaptive Huffman code mapping (AHCM) framework for obtaining higher secure payload. To avoid the frame-offset effect of audio codec, we first establish a distortion-limited suppressible code space ...
Xiao-Wei Yi, Xianfeng Zhao
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Huffman coding of DCT coefficients using dynamic codeword assignment and adaptive codebook selection
Signal Processing: Image Communication, 1998In many image sequence compression applications, Huffman coding is used to eliminate statistical redundancy resident in given data. The Huffman table is often pre-defined to reduce coding delay and table transmission overhead. Local symbol statistics, however, may be much different from the global ones manifested in the pre-defined table. In this paper,
Byeungwoo Jeon
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High-performance reversible data hiding in encrypted images with adaptive Huffman code
Digital Signal Processing, 2023Guangyong Gao, Liping Zhang, Shikun Tong
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XAdap: An Adaptive Huffman Coding on Markup Languages
International Conference on Computational Intelligence and Multimedia Applications (ICCIMA 2007), 2007Suneeta Agarwal
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Adaptive Huffman Coding with Memory Optimization
2024 5th International Conference on Smart Electronics and Communication (ICOSEC)Ramyasri Maturi +3 more
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