Hledat
Zobrazují se záznamy 61-70 z 110
Efficient Representation of Local Geometry for Large Scale Object Retrieval
(IEEE, 2009-06)
State of the art methods for image and object retrieval exploit both appearance (via visual words) and local geometry (spatial extent, relative pose). In large scale problems, memory becomes a limiting factor - local ...
Tracking the Invisible: Learning Where the Object Might be
(IEEE, 2010-06)
Objects are usually embedded into context. Visual context has been successfully used in object detection tasks, however, it is often ignored in object tracking. We propose a method to learn supporters which are, be it only ...
Construction of Precise Local Affine Frames
(IEEE, 2010-08)
We propose a novel method for the refinement of Maximally Stable Extremal Region (MSER) boundaries to sub-pixel precision by taking into account the intensity function in the 2 × 2 neighborhood of the contour points. The ...
Face-TLD: Tracking-Learning-Detection applied to faces
(IEEE, 2010-09)
A novel system for long-term tracking of a human face in unconstrained videos is built on Tracking-Learning-Detection (TLD) approach. The system extends TLD with the concept of a generic detector and a validator which is ...
Forward-Backward Error: Automatic Detection of Tracking Failures
(IEEE, 2010-08)
This paper proposes a novel method for tracking failure detection. The detection is based on the Forward-Backward error, i.e. the tracking is performed forward and backward in time and the discrepancies between these two ...
Image Matching and Retrieval by Repetitive Patterns
(IEEE, 2010-08)
Detection of repetitive patterns in images has been studied for a long time in computer vision. This paper discusses a method for representing a lattice or line pattern by shift-invariant descriptor of the repeating element. ...
Wald’s Sequential Analysis for Time-constrained Vision Problems
(IEEE, 2007-04)
In detection and matching problems in computer vision, both classification errors and time to decision characterize the quality of an algorithmic solution. We show how to formalize such problems in the framework of sequential ...
Optimal Randomized RANSAC
(IEEE, 2008-08)
A randomized model verification strategy for RANSAC is presented. The proposed method finds, like RANSAC, a solution that is optimal with user-specified probability. The solution is found in time that is close to the ...
Multiview 3D Tracking with an Incrementally Constructed 3D Model
(IEEE, 2006-06)
We propose a multiview tracking method for rigid objects. Assuming that a part of the object is visible in at least two cameras, a partial 3D model is reconstructed in terms of a collection of small 3D planar patches of ...
Dense Linear-Time Correspondences for Tracking
(IEEE, 2008-06)
A novel method is proposed for the problem of frame-to-frame correspondence search in video sequences. The method, based on hashing of low-dimensional image descriptors, establishes dense correspondences and allows large ...