eprintid: 122 rev_number: 2 eprint_status: archive userid: 1 dir: disk0/00/00/01/22 datestamp: 2023-11-09 15:15:45 lastmod: 2023-11-09 15:15:45 status_changed: 2023-11-09 15:12:50 type: conference_item metadata_visibility: show creators_name: Juahir, I.M. creators_name: Badruddin, N. title: Block mode decision based on motion vectors for H.264/AVC ispublished: pub keywords: Computation theory; Image coding; Image quality; Motion estimation, Block sizes; Low motion activity; Motion vectors; Particular video sequence, Image compression note: cited By 0; Conference of 2006 IEEE Region 10 Conference, TENCON 2006 ; Conference Date: 14 November 2006 Through 17 November 2006; Conference Code:70043 abstract: The H.264/AVC video compression standard incorporates new features to enhance video coding. It supports a variety of block sizes and shapes for motion estimation (ME), and gives more flexibility than previous standards. In this paper, we propose a method of determining the block mode to be used for a particular video sequence to give the optimum performance for the encoder. To reduce the number of computations involved, the block mode decision phase is done on the first few frames only and fixed for subsequent frames. The decision is based on motion vectors (MVs) found from previous frames. From our results, the block computation time can be reduced as much as 47.72 for a video sequence with low motion activity. On average, most of the test video sequences suffer degradation in PSNR value of less than 0.5dB. © 2006 IEEE. date: 2006 publisher: Institute of Electrical and Electronics Engineers Inc. official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-34547576922&doi=10.1109%2fTENCON.2006.343923&partnerID=40&md5=4714122f4897d9566286da99d9a5ddaf id_number: 10.1109/TENCON.2006.343923 full_text_status: none publication: IEEE Region 10 Annual International Conference, Proceedings/TENCON place_of_pub: Hong Kong refereed: TRUE isbn: 1424405491; 9781424405497 issn: 21593442 citation: Juahir, I.M. and Badruddin, N. (2006) Block mode decision based on motion vectors for H.264/AVC. In: UNSPECIFIED.