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AIED
2005
Springer
15 years 3 months ago
Automatic Textual Feedback for Guided Inquiry Learning
We briefly introduce the online learning environment INFACT, and then we describe its textual feedback system. The system automatically provides written comments to students as the...
Steven L. Tanimoto, Susan Hubbard, William Winn
VISUALIZATION
1994
IEEE
15 years 1 months ago
An Evaluation of Reconstruction Filters for Volume Rendering
To render images from a three-dimensional array of sample values, it is necessary to interpolate between the samples. This paper is concerned with interpolation methods that are e...
Stephen R. Marschner, Richard Lobb
FGR
2008
IEEE
202views Biometrics» more  FGR 2008»
14 years 10 months ago
Illumination transfer using homomorphic wavelet filtering and its application to light-insensitive face recognition
In this paper, we propose a novel homomorphic wavelet filtering based illumination transfer technique to change the dominant lighting of one face image (source face image) to anot...
Hu Han, Shiguang Shan, Xilin Chen, Wen Gao
SIGPRO
2008
113views more  SIGPRO 2008»
14 years 9 months ago
Design of maximally flat IIR filters with flat group delay responses
Digital filters with linear phase responses, that is, constant group delay responses are needed in many applications for signal and image processing. In this paper, a novel method...
Xi Zhang
ICIP
2008
IEEE
15 years 11 months ago
A post-compensation scheme for Nonlocal Means filter based image restoration
Recent Nonlocal Means filter (NLM) [1] is lack of mean conservation property, that is, image can have different mean before and after being processed. It is not suppose to happen ...
Hao Xu, Jizheng Xu, Feng Wu