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149
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EUROGRAPHICS
2010
Eurographics
15 years 5 months ago
Contrast-aware Halftoning
This paper proposes two variants of a simple but efficient algorithm for structure-preserving halftoning. Our algorithm extends Floyd-Steinberg error diffusion; the goal of our ex...
Hua Li and David Mould
ICMCS
2006
IEEE
125views Multimedia» more  ICMCS 2006»
15 years 10 months ago
Online Doubletalk Detector Calibration for Acoustic Echo Cancellation in Videoconferencing Systems
This paper addresses the problem of doubletalk detector calibration for acoustic echo cancellers in hands-free environments such as videoconferencing. A statistical model of a rec...
James D. Gordy, Rafik A. Goubran
122
Voted
IEEEIAS
2009
IEEE
15 years 10 months ago
Octagonal Search Algorithm with Early Termination for Fast Motion Estimation on H.264
: An adaptive threshold for early termination is proposed in this paper to enhance the cross octagonal search algorithm (COSA)[1]. In block motion estimation, search patterns have ...
Zhaopeng Cui, Dujuan Wang, Guang Jiang, Chengke Wu
ICMCS
2006
IEEE
119views Multimedia» more  ICMCS 2006»
15 years 10 months ago
A New Deblocking Algorithm Based on Adjusted Contourlet Transform
A new postprocessing method based on adjusted contourlet transform is introduced in this paper for suppressing blocking artifacts (BA) in block-based discrete cosine transform (BD...
Haohao Song, Songyu Yu, Chen Wang, Li Song, Hongka...
ICASSP
2011
IEEE
14 years 7 months ago
An iterative strategy to approach corners using a new saliency measurement
In this paper we propose a novel corner detection algorithm using local adaptive thresholding and iterative approaching. First, a new metric is defined to measure the saliency of ...
Lihong Ma, Xingjun Tan, Jing Tian