Title :
A video steganography scheme based on H.264 bitstreams replaced
Author :
Niu Ke ; Zhong Weidong
Author_Institution :
Key Lab. of Network & Inf. Security of APF, Eng. Univ. of APF, Xi´an, China
Abstract :
Analyze H.264 standard´s excellent, an information hiding scheme compatible with H.264 baseline is proposed. The scheme takes into account the features of Context Adaptive Variable Length Coding (CAVLC) which is used in H.264 baseline entropy coding. By modifying trailing ones sign flag and levels´ words in CAVLC, embedding information can be achieved. This scheme directly operates on the 4×4 residual data blocks. New codeword replacing original one make the embedding algorithm has a greater capacity and does not increase the rate. Meanwhile, the scheme modifies the high-frequency coefficients, which has good invisibility.
Keywords :
adaptive codes; embedded systems; entropy codes; steganography; variable length codes; video coding; CAVLC; H.264 baseline entropy coding bitstream; codeword; context adaptive variable length coding; embedding information; information hiding scheme; residual data block; video steganography scheme; Bit streams replaced; H.264/AVC; video steganography;
Conference_Titel :
Software Engineering and Service Science (ICSESS), 2013 4th IEEE International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4673-4997-0
DOI :
10.1109/ICSESS.2013.6615345