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ICMCS
2006
IEEE
113views Multimedia» more  ICMCS 2006»
16 years 25 days ago
Fast Multi-Reference Frame Motion Estimation via Downhill Simplex Search
Multi-reference frame motion estimation improves the accuracy of motion compensation in video compression, but it also dramatically increases computational complexity. Based on tr...
Chen-Kuo Chiang, Shang-Hong Lai
ICMCS
2006
IEEE
133views Multimedia» more  ICMCS 2006»
16 years 25 days ago
A Captcha Based on the Human Visual Systems Masking Characteristics
In this paper, a CAPTCHA is presented based on the masking characteristics of the Human Visual System (HVS). Knowing that noise can be masked by high activity regions and showing ...
Rony Ferzli, Rida A. Bazzi, Lina J. Karam
ICMCS
2006
IEEE
89views Multimedia» more  ICMCS 2006»
16 years 25 days ago
Motion and Mode Mapping for MPEG-2 to H.264/AVC Transcoding
— This paper describes novel low-complexity transcoding techniques for an efficient MPEG-2 to H.264/AVC transcoder. We present a motion and mode mapping algorithm that directly m...
Jun Xin, Anthony Vetro, Shun-ichi Sekiguchi, Kazuo...
ICMCS
2006
IEEE
129views Multimedia» more  ICMCS 2006»
16 years 25 days ago
Minimum Distortion Look-Up Table Based Data Hiding
In this paper, we present a novel data hiding scheme based on the minimum distortion look-up table (LUT) embedding that achieves good distortion-robustness performance. We first ...
Xiaofeng Wang, Xiao-Ping Zhang
ICMCS
2005
IEEE
79views Multimedia» more  ICMCS 2005»
16 years 12 days ago
Error Concealment for Facial Animation Based on Prediction of Muscle Data
An error concealment algorithm is proposed based on flow of facial expression to improve communication of animated facial data over a limited bandwidth and error prone channel. F...
Insu Park, Shahram Shirani, David W. Capson