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RISS 인기검색어
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- 저자 : Zhuo Bian (검색결과 3 건)
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Detecting Moving Object via Projection of Forward-Backward Frame Difference
Zhuo Bian,LiangliangWang 보안공학연구지원센터 2016 International Journal of Future Generation Communi Vol.9 No.5
Frame difference is a quick dissimilarity based segmentation approach for object detection, unfortunately, it gets trapped in over-segmented when the pixels of interest over time overlap each other. This paper presents a rather fast visual object detection approach capable of approximating the location of moving object under heavy background noise or big overlap caused by negative similarity. Specifically, frame forward-backward difference concept is proposed to extract object features in current frame through fusion of pixel-based current-previous and current-following frame difference. Based on this, we formulate object localization applying the statistics of horizontal-vertical projection of the fused difference. Therefore, our object detection can be regarded as a direct thresholding process which guarantees high efficiency while holds good accuracy performance. We evaluate our method on Weizmann human action dataset and some traffic videos for both single and multiple objects detection which demonstrates its applicability and prospect.
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Exploring Transferred Information for Daur Traditional Craftwork
Zhuo Bian,Liangliang Wang 보안공학연구지원센터 2016 International Journal of Multimedia and Ubiquitous Vol.11 No.11
This paper focuses on the disappearing Chinese Daur traditional craftwork on the graphical scale to reveal the great value of Daur culture from the culture conservation perspective. Specifically, typical Daur craftwork samples are surveyed and selected as the objective for analysis, based on which, color features and interest points feature are respectively extracted employing our color card quantization method and Scale-Invariant Feature Transform technique. Moreover, in order to apply the two extracted features into practice, principle component analysis scheme is utilized to lower the complexity and improve the accuracy of the feature information. Experimental results are accomplilshed on the collected Daur craftwork dataset, which also proves the applicability and efficiency of our approach.
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Di Hu,Hui Zou,Tao Han,Junze Xie,Nannan Dai,Liling Zhuo,Jianhong Gu,Jianchun Bian,Yan Yuan,Xuezhong Liu,Zongping Liu 대한수의학회 2016 Journal of Veterinary Science Vol.17 No.1
Gap junctions mediate direct communication between cells; however, toxicological cascade triggered by nonessential metals can abrogate cellular signaling mediated by gap junctions. Although cadmium (Cd) is known to induce apoptosis in organs and tissues, the mechanisms that underlie gap junction activity in Cd-induced apoptosis in BRL 3A rat liver cells has yet to be established. In the present study, we showed that Cd treatment decreased the cell index (a measure of cellular electrical impedance) in BRL 3A cells. Mechanistically, we found that Cd exposure decreased expression of connexin 43 (Cx43), increased expression of p-Cx43 and elevated intracellular free Ca2+ concentration, corresponding to a decrease in gap junctional intercellular communication. Gap junction blockage pretreatment with 18b-glycyrrhizic acid (GA) promoted Cd-induced apoptosis, involving changes in expression of Bax, Bcl-2, caspase-3 and the mitochondrial transmembrane electrical potential (Δym). Additionally, GA was found to enhance ERK and p38 activation during Cd-induced activation of mitogen-activated protein kinases, but had no significant effect on JNK activation. Our results indicated the apoptosis-related proteins and the ERK and p38 signaling pathways may participate in gap junction blockage promoting Cd-induced apoptosis in BRL 3A cells.
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