284 search results - page 28 / 57 » Detecting image spam using visual features and near duplicat... |
IVC
2000
14 years 11 months ago
2000
Regular structures, flat and non-flat, are perceived as regular in a wide range of viewing angles and under varying illumination. In this papers, we exploit this simple observatio...
101
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3DPVT
2006
IEEE
15 years 6 months ago
2006
IEEE
Range sensing technology allows the photo-realistic modeling of large-scale scenes, such as urban structures. A major bottleneck in the process of 3D scene acquisition is the auto...
128
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DAGM
2003
Springer
15 years 5 months ago
2003
Springer
We present a system capable of visually detecting pointing gestures and estimating the 3D pointing direction in real-time. We use Hidden Markov Models (HMMs) trained on different ...
ICCV
2003
IEEE
16 years 1 months ago
2003
IEEE
This paper presents an approach to build high resolution digital elevation maps from a sequence of unregistered low altitude stereovision image pairs. The approach first uses a vi...
NPAR
2009
ACM
15 years 6 months ago
2009
ACM
We present an algorithm for rendering high-quality line primitives of controllable on-screen width within a ray tracing framework, which can render simple NPR-style feature lines,...