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IJCV
2012
13 years 8 months ago
Sparse Occlusion Detection with Optical Flow
Abstract We tackle the problem of detecting occluded regions in a video stream. Under assumptions of Lambertian reflection and static illumination, the task can be posed as a vari...
Alper Ayvaci, Michalis Raptis, Stefano Soatto
DICTA
2003
15 years 7 months ago
Fast Circle Detection Using Gradient Pair Vectors
The Circle Hough Transform (CHT) has become a common method for circle detection in numerous image processing applications. Because of its drawbacks, various modifications to the b...
Ali Ajdari Rad, Karim Faez, Navid Qaragozlou
ICASSP
2010
IEEE
15 years 6 months ago
A statistical model-based double-talk detection incorporating soft decision
In this paper, we propose a novel double-talk detection (DTD) technique based on a soft decision in the frequency domain. The proposed method provides an efficient procedure to d...
Yun-Sik Park, Ji-Hyun Song, Sang-Ick Kang, Woojung...
OIR
2006
129views more  OIR 2006»
15 years 6 months ago
Structural analysis of chat messages for topic detection
Purpose - This paper studies the characteristics of chat messages from analyzing a collection of 33,121 sample messages gathered from 1700 sessions of conversations of 72 pairs of...
Haichao Dong, Siu Cheung Hui, Yulan He
ICIP
2010
IEEE
15 years 4 months ago
Stationary foreground detection using background subtraction and temporal difference in video surveillance
In this paper we describe a new algorithm focused on obtaining stationary foreground regions, which is useful for applications like the detection of abandoned/stolen objects and p...
Álvaro Bayona, Juan C. SanMiguel, Jos&eacut...