Wen-Hao Wang

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Video surveillance usually requires multiple cameras to monitor objects of interest, such as people. However, different appearances acquired from different cameras of the same people often make the construction of a robust individualized appearance model very challenging. In this paper, we present a kernel-based method that maps the bag-of-feature based(More)
We consider the volume corrected characteristics-mixed method (VCCMM) for tracer transport problems. The volume correction adjustment maintains the local volume conservation of bulk fluids and the numerical convergence of the method. We discuss some details of implementation by considering the scheme from an algebraic point of view. We show that the volume(More)
This paper presents an interactive video event retrieval system based on improved adaboost learning. This system consists of three main steps. Firstly, a long video sequence is partitioned into several video clips by using a distribution-based approach instead of detecting shot transition boundaries. Secondly, audiovisual features (i.e., color, motion and(More)
We consider the convergence of a volume corrected characteristics-mixed method (VCCMM) for advection-diffusion systems. It is known that, without volume correction, the method is first order convergent, provided there is a nondegenerate diffusion term. We consider the advective part of the system and give some properties of the weak solution. With these(More)
Secondary massive cerebral infarction (MCI) is the predominant prognostic factor for cerebral herniation from epidural hematoma (EDH) and determines the need for decompressive craniectomy. In this study, we tested the clinical feasibility and reliability of a novel pre-operative risk scoring system, the EDH-MCI scale, to guide surgical decision making. It(More)