Tuesday 18 May 2010

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Transactions: INTERNATIONAL JOURNAL of CIRCUITS, SYSTEMS and SIGNAL PROCESSING
Transactions ID Number: 19-310
Full Name: Siavash Eshaghi
Position: Lecturer
Age: ON
Sex: Male
Address: Islamic Azad University, Birjand
Country: IRAN
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E-mail address: esshaghi@gmail.com
Other E-mails: hs_farsi@yahoo.co.uk
Title of the Paper: An Enhanced Rate Control Based on Mode Decision and Early Motion Estimation for H.264/AVC
Authors as they appear in the Paper: Siavash Eshaghi, Hassan Farsi
Email addresses of all the authors: esshaghi@gmail.com, hs_farsi@yahoo.co.uk
Number of paper pages: 11
Abstract: The H.264/AVC video coding standard delivers a significantly better performance compared to previous standards, supporting higher quality video over lower bit rate channels. Rate control plays an important role in real-time video communication applications using H.264/AVC. An important step in many existing rate control algorithms is to determine the target bits for each P frame. This paper aims in improving video distortion by allocating more bits to frames with higher complexity and fewer bits to low complexity frames. In this work, the distribution of Macro Block (MB) modes in a frame is considered as a measure of its complexity. Also, an early motion estimation approach is introduced and used for complexity estimation. The bit budget is then allocated to frames according to their complexity and buffer status. Simulation results show that the proposed method effectively improves the PSNR average and meets the target bit rate more closely. In addition the propose!
d technique is less complex than other existing frame layer bit allocation schemes that are based on frame complexity.
Keywords: H.264, Rate Control, Bit Allocation, Frame Complexity, Mode Decision, Motion Estimation
EXTENSION of the file: .doc
Special (Invited) Session: Rate Control and Mode decision Jointly Optimization in H.264AVC
Organizer of the Session: 637-260
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