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» Robust Algorithms for Object Localization
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JOTA
2011
149views more  JOTA 2011»
15 years 1 months ago
Globally Convergent Cutting Plane Method for Nonconvex Nonsmooth Minimization
: Nowadays, solving nonsmooth (not necessarily differentiable) optimization problems plays a very important role in many areas of industrial applications. Most of the algorithms d...
Napsu Karmitsa, Mario Tanaka Filho, José He...
ICMCS
2006
IEEE
133views Multimedia» more  ICMCS 2006»
16 years 16 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
IVC
2006
99views more  IVC 2006»
15 years 6 months ago
People tracking in surveillance applications
This paper presents a real-time algorithm that allows robust tracking of multiple objects in complex environments. Foreground pixels are detected using luminance contrast and grou...
Luis M. Fuentes, Sergio A. Velastin
TSP
2008
166views more  TSP 2008»
15 years 6 months ago
Audio Denoising by Time-Frequency Block Thresholding
Abstract--Removing noise from audio signals requires a nondiagonal processing of time-frequency coefficients to avoid producing "musical noise." State of the art algorith...
Guoshen Yu, Stéphane Mallat, Emmanuel Bacry
SIGPRO
2010
58views more  SIGPRO 2010»
15 years 4 months ago
Signal-dependent constraints for perceptually motivated suppression of late reverberation
—The suppression of late reverberation by spectral subtraction tends to degrade disproportionally low-level signal regions and signal transients. This work proposes two novel rel...
Alexandros Tsilfidis, John Mourjopoulos