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TMI
1998
181views more  TMI 1998»
14 years 9 months ago
Image Contrast Enhancement Based on a Histogram Transformation of Local Standard Deviation
Abstract— The adaptive contrast enhancement (ACE) algorithm, which uses contrast gains (CG’s) to adjust the highfrequency components of images, is a well-known technique for me...
Dah-Chung Chang, Wen-Rong Wu
ITS
2004
Springer
94views Multimedia» more  ITS 2004»
15 years 3 months ago
A Model for Student Knowledge Diagnosis Through Adaptive Testing
This work presents a model for student knowledge diagnosis that can be used in ITSs for student model update. The diagnosis is accomplished through Computerized Adaptive Testing (C...
Eduardo Guzmán, Ricardo Conejo
TIP
2011
164views more  TIP 2011»
14 years 4 months ago
Multiregion Image Segmentation by Parametric Kernel Graph Cuts
Abstract—The purpose of this study is to investigate multiregion graph cut image partitioning via kernel mapping of the image data. The image data is transformed implicitly by a ...
Mohamed Ben Salah, Amar Mitiche, Ismail Ben Ayed
WCNC
2008
IEEE
15 years 4 months ago
Simulation of Doubly-Selective Compound K Fading Channels for Mobile-to-Mobile Communications
A computer simulation model is proposed for discretetime doubly-selective compound-K fading channel. It first generates multiple independent mobile-to-mobile Rayleigh fading Chan...
Yuan Liu, Jian Zhang, Yahong Rosa Zheng
WSC
2000
14 years 11 months ago
Analyzing transformation-based simulation metamodels
We present a technique for analyzing a simulation metamodel that has been constructed using a variancestabilizing transformation. To compute a valid confidence interval for the ex...
Maria de los A. Irizarry, Michael E. Kuhl, Emily K...