103 search results - page 3 / 21 » Total Variation Based Oversampling of Noisy Images |
SIAMIS
2011
13 years 2 months ago
2011
In this paper we study finite-difference approximations to the variational problem using the BV smoothness penalty that was introduced in an image smoothing context by Rudin, Osh...
IBPRIA
2007
Springer
14 years 1 months ago
2007
Springer
Abstract. Tracking the Left Ventricle (LV) in ultrasound sequences remains a challenge due to speckle noise, low SNR and lack of contrast. Therefore, it is usually difficult to obt...
ICIP
2000
IEEE
13 years 11 months ago
2000
IEEE
In this paper, we propose using Partial Differential Equation (PDE) techniques in wavelet based image processing to reduce edge artifacts generated by wavelet thresholding. We emp...
ICIP
2008
IEEE
14 years 1 months ago
2008
IEEE
This paper presents a new adaptive post-processing algorithm for ringing artifact reduction after image interpolation (upsampling). The algorithm is based on the concept of total ...
ICIP
2010
IEEE
13 years 5 months ago
2010
IEEE
We introduce a novel functional for vector-valued images that generalizes several variational methods, such as the Total Variation and Beltrami Functionals. This functional is bas...