11845096
Integration of audio and visual information for content-based video segmentation
A video sequence usually consists of separate scenes, and each scene includes many shots. For video understanding purposes, it is most important to detect scene breaks. To analyze the content of each scene, detection of shot breaks is also required. Usually, a scene break is associated with a simultaneous change of image, motion, and audio characteristics, while a shot break is only accompanied with changes in image or motion or both. We propose to use audio information along with image and motion information to accomplish segmentation at different levels. Promising results have been obtained with videos digitized from TV programs.
28562
Content-based indexing and retrieval-by-example in audio
This paper presents a system for audio content-based indexing and retrieval-by-example. An unsupervised method to automatically index the audio content is proposed. To realize a retrieval system where the on-line query can be performed efficiently, a new parametric distance metric is used to allow faster identification of the audio segments that are similar to the given query example. Preliminary experimental results show that the proposed new approach can serve as an effective means in content based indexing and retrieval in audio streams.
8433230
A biologically inspired congestion control routing algorithm for MANETs
This paper presents EARA-CG, an improved version of a swarm-intelligence ad hoc routing algorithm EARA introduced in the work of Z. Liu et al. (2004). Based on the understanding of the evolutionary cooperation in the biological swarm, we use the principle of swarm intelligence to reinforce good quality routes with only local communication. The concept of stigmergy is adopted to reduce the amount of control traffic. By locally monitoring the network transmission queue and other MAC layer information, this algorithm can forward data traffic through paths that avoid network hotspots. The data traffic influences routing table updates at each node. We also discuss an evaluation methodology to simulate ad hoc networks, and the simulation results show that this novel routing algorithm scales well to a variety of network conditions.
1204986
A floating-point CORDIC based SVD processor
An SVD processor system is presented in which each processing element is implemented using a simple CORDIC unit. The internal recursive loop within the CORDIC module is exploited, with pipelining being used to multiplex the two independent microrotations onto a single CORDIC processor. This leads to a high performance and efficient hardware architecture. In addition, a novel method for scale factor correction is presented which only need be applied once at the end of the computation. This also reduces the computation time. The net result is an SVD architecture based on a conventional CORDIC approach, which combines high performance with high silicon area efficiency.
206638919
Stepwise Development of Fault-Tolerant Reactive Systems
Consider a reactive system of the form S1 ∥ S2. Given the specification of one component, say S1, methods are available to design S2 in a stepwise manner such that the composed system S1 ∥ S2 satisfies a given specification. In this paper, we use a similar paradigm to construct a fault-tolerant program. Given a program S1 that may suffer from hardware faults or software design faults, we show how a stepwise method can be used to design a program S2 so that S1 ∥ S2 meets a given specification. The main idea is demonstrated by solving a resource allocation problem.
3137419
Subtle Facial Expression Modeling with Vector Field Decomposition
Facial expression means not only the feature motions but also the subtle appearance changes in the face. The details are important to facial expression synthesis. In this paper, a novel method based on vector field decomposition is presented to model subtle facial expressions. The intensity change of facial expression image is represented by Helmholtz-Hodge vector field decomposition. Based on this method, subtle facial expression mapping is carried out much faster and better. Experiment results show that our method is robust and convincible to model the subtle facial expression.
6908345
A swarm intelligence routing algorithm for MANETs
This paper presents a novel swarm intelligence inspired routing algorithm (EARA) for mobile ad hoc networks. Based on the understanding of the evolutionary cooperation in the biological swarm, which provides an alternative solution resilient against changes in the dynamic environment, We use the principle of swarm intelligence for the reinforcement of optimal routes with only local communication (here, local communication is defined as neighbourto-neighbour one only). The data traffic is influenced at each node, and the communicating nodes observe this influence to update their tables. We also include an evaluation, and the simulation results show that this routing algorithm scales well to a variety of network conditions.