Sciweavers

PR
2007
136views more  PR 2007»
13 years 4 months ago
Image denoising with complex ridgelets
In this paper, we propose a novel image denoising method by incorporating the dual-tree complex wavelets into the ordinary ridgelet transform. The approximate shift invariant prop...
Guangyi Chen, Balázs Kégl
PR
2007
340views more  PR 2007»
13 years 4 months ago
Fast and robust fuzzy c-means clustering algorithms incorporating local information for image segmentation
— Fuzzy c-means (FCM) algorithms with spatial constraints (FCM_S) have been proven effective for image segmentation. However, they still have the following disadvantages: 1) Alth...
Weiling Cai, Songcan Chen, Daoqiang Zhang
PR
2007
104views more  PR 2007»
13 years 4 months ago
Optimizing resources in model selection for support vector machine
Tuning SVM hyperparameters is an important step in achieving a high-performance learning machine. It is usually done by minimizing an estimate of generalization error based on the...
Mathias M. Adankon, Mohamed Cheriet
PR
2007
125views more  PR 2007»
13 years 4 months ago
Calculating geometric properties of three-dimensional objects from the spherical harmonic representation
The volume, location of the centroid, and second order moments of a threedimensional star-shaped object are determined in terms of the spherical harmonic coefficients of its bound...
Artemy Baxansky, Nahum Kiryati
PR
2007
96views more  PR 2007»
13 years 4 months ago
Weighted and robust learning of subspace representations
A reliable system for visual learning and recognition should enable a selective treatment of individual parts of input data and should successfully deal with noise and occlusions....
Danijel Skocaj, Ales Leonardis, Horst Bischof
PR
2007
112views more  PR 2007»
13 years 4 months ago
The effect of imbalanced data sets on LDA: A theoretical and empirical analysis
This paper demonstrates that the imbalanced data sets have a negative effect on the performance of LDA theoretically. This theoretical analysis is confirmed by the experimental r...
Jigang Xie, ZhengDing Qiu
PR
2007
205views more  PR 2007»
13 years 4 months ago
Active learning for image retrieval with Co-SVM
In relevance feedback algorithms, selective sampling is often used to reduce the cost of labeling and explore the unlabeled data. In this paper, we proposed an active learning alg...
Jian Cheng, Kongqiao Wang
PR
2007
155views more  PR 2007»
13 years 4 months ago
Fast and versatile algorithm for nearest neighbor search based on a lower bound tree
Yong-Sheng Chen, Yi-Ping Hung, Ting-Fang Yen, Chio...