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Št. zadetkov: 7
30Hz Object Detection with DPM V5
David Forsyth
Video in druga učna gradiva
Oznake: computer science;computer vision
We describe an implementation of the Deformable Parts Model [1] that operates in a user-defined time-frame. Our implementation uses a variety of mechanism to trade-off speed against accuracy. Our implementation can detect all 20 PASCAL 2007 objects simultaneously at 30Hz with an mAP of 0.26. At 15Hz ...
Leto: 2014 Vir: videolectures.net
Motion Capture of Hands in Action using Discriminative Salient Points
Luca Ballan , Bernt Schiele , David Forsyth
Video in druga učna gradiva
Oznake: computer science;computer vision;motion and tracking
Capturing the motion of two hands interacting with an object is a very challenging task due to the large number of degrees of freedom, selfocclusions, and similarity between the fingers, even in the case of multiple cameras observing the scene. In this paper we propose to use discriminatively learne ...
Leto: 2012 Vir: videolectures.net
Photo-Sequencing
Tali Basha , Bernt Schiele , David Forsyth
Video in druga učna gradiva
Oznake: computer science;computer vision;computational photography
Dynamic events such as family gatherings, concerts or sports events are often captured by a group of people. The set of still images obtained this way is rich in dynamic content but lacks accurate temporal information. We propose a method for photo-sequencing --- temporally ordering a set of still i ...
Leto: 2012 Vir: videolectures.net
Streaming Hierarchical Video Segmentation
Bernt Schiele , David Forsyth , Jason Corso
Video in druga učna gradiva
Oznake: computer science;computer vision;video analysis
The use of video segmentation as an early processing step in video analysis lags behind the use of image segmentation for image analysis, despite many available video segmentation methods. A major reason for this lag is simply that videos are an order of magnitude bigger than images; yet most method ...
Leto: 2012 Vir: videolectures.net
Reflectance and Natural Illumination from a Single Image
Stephen Lombardi , Bernt Schiele , David Forsyth
Video in druga učna gradiva
Oznake: computer science;computer vision;color, texture, illumination & reflectance
Estimating reflectance and natural illumination from a single image of an object of known shape is a challenging task due to the ambiguities between reflectance and illumination. Although there is an inherent limitation in what can be recovered as the reflectance band-limits the illumination, explic ...
Leto: 2012 Vir: videolectures.net
Frequency-Space Decomposition and Acquisition of Light Transport under Spatially Varying Illumination
Ravi Ramamoorthi , Bernt Schiele , David Forsyth
Video in druga učna gradiva
Oznake: computer science;computer vision;color, texture, illumination & reflectance
We show that, under spatially varying illumination, the light transport of diffuse scenes can be decomposed into direct, near-range (subsurface scattering and local inter-reflections) and far-range transports (diffuse inter-reflections). We show that these three component transports are redundant ei ...
Leto: 2012 Vir: videolectures.net
A Naturalistic Open Source Movie for Optical Flow Evaluation
Daniel J. Butler , Bernt Schiele , David Forsyth
Video in druga učna gradiva
Oznake: computer science;computer vision
Ground truth optical flow is difficult to measure in real scenes with natural motion. As a result, optical flow data sets are restricted in terms of size, complexity, and diversity, making optical flow algorithms difficult to train and test on realistic data. We introduce a new optical flow data set ...
Leto: 2012 Vir: videolectures.net
Št. zadetkov: 7
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