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» Dequantizing image orientation
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SIBGRAPI
2006
IEEE
15 years 9 months ago
Estimation of Multiple Orientations and Multiple Motions in Multi-Dimensional Signals
The estimation of multiple orientations in multidimensional signals is a strongly non-linear problem to which a two-step solution is here presented. First, the problem is lineariz...
Ingo Stuke, Erhardt Barth, Cicero Mota
WWW
2009
ACM
16 years 4 months ago
What's up CAPTCHA?: a CAPTCHA based on image orientation
We present a new CAPTCHA which is based on identifying an image's upright orientation. This task requires analysis of the often complex contents of an image, a task which hum...
Rich Gossweiler, Maryam Kamvar, Shumeet Baluja
105
Voted
ICRA
2008
IEEE
129views Robotics» more  ICRA 2008»
15 years 10 months ago
Orthogonal wall correction for visual motion estimation
— A good motion model is a prerequisite for many approaches to simultaneous localization and mapping. Without an absolute reference, it is however difficult to prevent drift whe...
Jörg Stückler, Sven Behnke
108
Voted
ICIP
2001
IEEE
16 years 5 months ago
The orientation adaptive lapped biorthogonal transform for efficient image coding
A lapped biorthogonal transform adapted for local directionality of an image is proposed. The proposed transform consists of overlapping basis functions and non-overlapping basis ...
Toshihsa Tanaka, Y. Yamashita
125
Voted
DAS
2006
Springer
15 years 7 months ago
Finding the Best-Fit Bounding-Boxes
The bounding-box of a geometric shape in 2D is the rectangle with the smallest area in a given orientation (usually upright) that complete contains the shape. The best-fit bounding...
Bo Yuan, Leong Kwoh, Chew Lim Tan