In this paper, we present a Gibbs Random Field (GRF) modeling based Nonnegative Matrix Factorization (NMF) algorithm, called GRF-NMF. We propose to treat the component matrix of NMF as a Gibbs random field. Since each...
详细信息
In this paper we present a new "one-shot" method to reconstruct the shape of dynamic 3D objects and scenes based on active illumination. In common with other related prior-art methods, a static grid pattern ...
详细信息
ISBN:
(纸本)9781424444427
In this paper we present a new "one-shot" method to reconstruct the shape of dynamic 3D objects and scenes based on active illumination. In common with other related prior-art methods, a static grid pattern is projected onto the scene, a video sequence of the illuminated scene is captured, a shape estimate is produced independently for each video frame, and the one-shot property is realized at the expense of space resolution. The main challenge in grid-based one-shot methods is to engineer the pattern and algorithms so that the correspondence between pattern grid points and their images can be established very fast and without uncertainty. We present an efficient one-shot method which exploits simple geometric constraints to solve the correspondence problem. We also introduce De Bruijn spaced grids, a novel grid pattern, and show with strong empirical data that the resulting scheme is much more robust compared to those based on uniform spaced grids.
Multiple object tracking is particularly challenging when many objects with similar appearances occlude one another. Most existing approaches concatenate the states of different objects, view the multi-object tracking...
详细信息
With the recent development on image affine region descriptors, we can extract more salient and useful local information from images. That information can be used to help us to better solve a fundamental problem in co...
详细信息
Dynamic texture (DT) is an extension of texture to the temporal domain. How to segment DTs is a challenging problem. In this paper, we propose significant improvements to a recently published DT segmentation method. W...
详细信息
Face recognition is one of the most intensively studied topics in computervision and patternrecognition. A constrained optical flow algorithm, which combines the advantages of the unambiguous correspondence of featu...
详细信息
There are two important research topics in the field of Music Information Retrieval (MIR). One is how to improve the robustness of features and the other is how to speed up the retrieval process. This paper improved t...
详细信息
The major theme of the program is to identify challenges facing the work toward a unifying theoretical foundation of stochastic image grammars. The program has research topics that deals with stochastic image grammars...
The major theme of the program is to identify challenges facing the work toward a unifying theoretical foundation of stochastic image grammars. The program has research topics that deals with stochastic image grammars. The topics include learning vocabularies of visual primitives and parts; hierarchical models of events, activities, and scenes; taxonomies and ontologies for activities; inference algorithm for image grammars; use of grammars for image parsing, and generating sentences of image interpretation; and image datasets and evaluating stochastic image grammars.
We demonstrate a concept of computervision as a secure, live service on the Internet. We show a platform to distribute a real time vision algorithm using simple widely available web technologies, such as Adobe Flash,...
详细信息
ISBN:
(纸本)9781424439942
We demonstrate a concept of computervision as a secure, live service on the Internet. We show a platform to distribute a real time vision algorithm using simple widely available web technologies, such as Adobe Flash, We allow a user to access this service without downloading an executable or sharing the image stream with anyone. We support developers to publish without distribution complexity. Finally the platform supports user-permitted aggregation of data for computervision research or analysis. We describe results for a simple distributed motion detection algorithm. We discuss future scenarios for organically extending the horizon of computervision research.
暂无评论