Title :
A study of efficient Block Matching Algorithms for real-time video compression applications
Author :
Ashok, Nayak B. ; Nagabhooshnam, E.
Author_Institution :
Osmania Univ.-Hyd., Hyderabad, India
Abstract :
Video compression is essential before transmitting or storing video data. A video encoder utilizes the redundancies in the raw data to produce a compressed output. Two types of redundancies are used in this respect. One is spatial redundancy and the other one is temporal redundancy. An encoder exploits both redundancies during compression. In a video frame, neighboring pixels usually have similar color information. This is called spatial redundancy. In a video frame, adjacent frames are highly correlated. This type of redundancy is called temporal redundancy. Discrete Cosine Transformation (DCT) is applied on video data to remove spatial redundancy.
Keywords :
data compression; discrete cosine transforms; image colour analysis; video coding; DCT; block matching algorithms; color information; discrete cosine transformation; real-time video compression; spatial redundancy; temporal redundancy; video data; video encoder; video frame; Abstracts; Algorithm design and analysis; Diamonds; Educational institutions; Ferroelectric films; PSNR; Random access memory; 4SS; ARPS; Block Matching Algorithms; DCT; DS; ES; IDSP; Motion Estimation; NTSS; SES; TSS; Video Codec; Video compression;
Conference_Titel :
Electronics and Communication Systems (ICECS), 2014 International Conference on
Conference_Location :
Coimbatore
Print_ISBN :
978-1-4799-2321-2
DOI :
10.1109/ECS.2014.6892765
