Results 161 to 170 of about 2,705,238 (250)

Deposition of metal-organic frameworks within a porous protein crystal superstructure.

open access: yesJ Mater Chem B
DeRoo JB   +7 more
europepmc   +1 more source

Huffman Coding

ACM Computing Surveys, 2014
Huffman’s algorithm for computing minimum-redundancy prefix-free codes has almost legendary status in the computing disciplines. Its elegant blend of simplicity and applicability has made it a favorite example in algorithms courses, and as a result it is perhaps one of the most commonly implemented algorithmic techniques.
Alistair Moffat
openaire   +3 more sources

On breaking a Huffman code

IEEE Transactions on Information Theory, 1996
Summary: We examine the problem of deciphering a file that has been Huffman coded, but not otherwise encrypted. We find that a Huffman code can be surprisingly difficult to cryptanalyze. We present a detailed analysis of the situation for a three-symbol source alphabet and present some results for general finite alphabets.
Gillman, David W.   +2 more
openaire   +3 more sources

AHCM: Adaptive Huffman Code Mapping for Audio Steganography Based on Psychoacoustic Model

IEEE Transactions on Information Forensics and Security, 2019
Most 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.
Xiaowei Yi   +4 more
semanticscholar   +1 more source

Huffman-code based retrieval for encrypted JPEG images

Journal of Visual Communication and Image Representation, 2019
This paper proposes a retrieval scheme for encrypted JPEG images, based on Huffman code in the JPEG bitstream. Three parties are involved: content owner, cloud server, and authorized user.
Haihua Liang, Xinpeng Zhang, Hang Cheng
semanticscholar   +1 more source

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