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An unsupervised approach of the automatic collective motion group detection is proposed in this paper, which firstly extracted foreground-keypoints based Gaussian Mixture Models (GMMs) and Kanade-Lucas-Toma (KLT) trackers, then foreground-keypoints are multistage filtered by temporal and spatial distance adjacent filter operator, velocity angle filter operator and velocity correlations filter operator...
This paper presents a novel error concealment method for stereoscopic video which makes use of the illumination changes between different views. Our goal is to improve the quality of the reconstructed macroblocks with disparity compensation prediction in a stereoscopic video coding system by compensating illumination difference between two views. Experimental results show that the proposed method...
Illumination changes of different views of the 3D video can cause performance degradation in error concealment. In this paper we propose a new method of the error concealment for stereoscopic video to overcome this problem. We explore four implementations of an inter-view macro block (MB) matching algorithm which successfully compensates for illumination changes between stereo pairs. Experimental...
This paper analyzes the impact of venture capital on accounting performance of the firms, taking 66 Chinese listed companies in SME Board of Shenzhen Stock Exchange as examples. Although ANOVA and cross-section regression analysis show no significant differences of performance between venture capital backed firms and non venture capital backed firms, in a long term venture capital does show a positive...
When rotor rubbing acoustic emission(AE) signal propagates in the complex structure, multi-mode waves have different propagate speeds and signals are distorted seriously because of the complexity of the revolving mechanical structure. The accurate AE source location could not be gotten using traditional time-delay estimation. On the basis of inversely attenuation between propagation energy and source...
A method of using two-class classifiers in emotion recognition was discussed. Emotion classes were divided into pairs for improved feature selection and optimization. Each pair of emotions was classified by a two-class classifier and the final recognition result was reached by a correlation decoder. Compared with n-class classifier, using two-class classifiers for each pair of emotions is more suitable...
When locating the rub-impact source of rotating machines by acoustic emission technology, precise time-difference of arrival is always not available to calculate the faults location due to the deteriorated signal correlation relationship among different sensors. This is caused by both the dispersion phenomenon since the acoustic emission signal includes various waveform modes while each type of waveform...
Product optimization in product design is a very essential and time-consuming process especially at the variant design stage. A research project is introduced aiming to develop quickly a variant design system capable of competition and owning market shares. According to it, a new variant design idea, with a logical product structure model, is put forward based on product gene (PG). The product gene...
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