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Safety helmet wearing detection is very essential in power substation. This paper proposed a innovative and practical safety helmet wearing detection method based on image processing and machine learning. At first, the ViBe background modelling algorithm is exploited to detect motion object under a view of fix surveillant camera in power substation. After obtaining the motion region of interest, the...
In this paper, a new method for the estimation of 3D human body poses from monocular images is proposed. Histograms of oriented gradients are used as the features for modeling human body poses. Human body poses are represented as 3D limb angles, which can remove the structure information from pose vector. Relevance Vector Machine is used to infer the mapping from image features to body poses. Experiments...
Incorporating constraints into the kernel-based regression is an effective means to improve regression performance. Nevertheless, in many applications, the constraints are continuous with respect to some parameters so that computational difficulties arise. Discretizing the constraints is a reasonable solution for these difficulties. However, in the context of kernel-based regression, most of existing...
This paper studies a discrete conditional value-at-risk (DCVaR) model with multiple losses based on weight and present a new support vector machine model. We introduce the concept of alpha-CVaR for the case of multiple losses with discrete random variable under the confidence level vector alpha. The alpha-CVaR indicates the conditional expected losses corresponding to the alpha-VaR. The problem of...
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