424 search results - page 21 / 85 » A locally adaptive zooming algorithm for digital images |
CBMS
2003
IEEE
14 years 1 months ago
2003
IEEE
Vertebra shape can effectively describe various pathologies found in spine x-ray images. There are some critical regions on the shape contour which help determine whether the shap...
ICDAR
2007
IEEE
14 years 2 months ago
2007
IEEE
We describe an unsupervised learning algorithm for extracting sparse and locally shift-invariant features. We also devise a principled procedure for learning hierarchies of invari...
ICDAR
2011
IEEE
12 years 8 months ago
2011
IEEE
—Content-based video indexing and retrieval has become an interesting research area with the tremendous growth in the amount of digital media. In addition to the audio-visual con...
TMI
1998
13 years 8 months ago
1998
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...
GECCO
2005
Springer
14 years 1 months ago
2005
Springer
Digital subtraction is a promising technique used in radiographic studies of periapical lesions and other dental disorders for which the treatment must be evaluated over time. Thi...