1405 search results - page 43 / 281 » Perceptual Image Distortion |
AFRIGRAPH
2001
ACM
15 years 3 months ago
2001
ACM
The distortion operator transforms 2D images in a manner similar to image warping or morphing, allowing source pixels to be mapped to any destination pixel. This operator can be i...
MICCAI
2000
Springer
15 years 3 months ago
2000
Springer
This paper deals with the correction of distortions in EPI acquisitions. Echo-planar imaging (EPI) data is used in functional resonance imaging (fMRI) and in diffusion tensor MRI (...
ICIP
1999
IEEE
15 years 4 months ago
1999
IEEE
Due to magnetic field inhomogeneities, EPI images are geometrically distorted, predominantly along the phase-encoding direction. Currently, the distortion is either ignored or com...
ICIP
2008
IEEE
15 years 6 months ago
2008
IEEE
In this paper, we present a novel algorithm for wavelet domain image denoising using the soft thresholding function. The thresholds are designed to be locally optimal with respect...
ETRA
2010
ACM
15 years 6 months ago
2010
ACM
We introduce an algorithm for space-variant filtering of video based on a spatio-temporal Laplacian pyramid and use this algorithm to render videos in order to visualize prerecor...