http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
An Anti-occlusion and Scale Adaptive Kernel Correlation Filter for Visual Object Tracking
( Yingping Huang ),( Chao Ju ),( Xing Hu ),( Wenyan Ci ) 한국인터넷정보학회 2019 KSII Transactions on Internet and Information Syst Vol.13 No.4
Focusing on the issue that the conventional Kernel Correlation Filter (KCF) algorithm has poor performance in handling scale change and obscured objects, this paper proposes an anti-occlusion and scale adaptive tracking algorithm in the basis of KCF. The average Peak-to Correlation Energy and the peak value of correlation filtering response are used as the confidence indexes to determine whether the target is obscured. In the case of non-occlusion, we modify the searching scheme of the KCF. Instead of searching for a target with a fixed sample size, we search for the target area with multiple scales and then resize it into the sample size to compare with the learnt model. The scale factor with the maximum filter response is the best target scaling and is updated as the optimal scale for the following tracking. Once occlusion is detected, the model updating and scale updating are stopped. Experiments have been conducted on the OTB benchmark video sequences for compassion with other state-of-the-art tracking methods. The results demonstrate the proposed method can effectively improve the tracking success rate and the accuracy in the cases of scale change and occlusion, and meanwhile ensure a real-time performance.
Lane Detection Based on Inverse Perspective Transformation and Kalman Filter
( Yingping Huang ),( Yangwei Li ),( Xing Hu Wenyan Ci ) 한국인터넷정보학회 2018 KSII Transactions on Internet and Information Syst Vol.12 No.2
This paper proposes a novel algorithm for lane detection based on inverse perspective transformation and Kalman filter. A simple inverse perspective transformation method is presented to remove perspective effects and generate a top-view image. This method does not need to obtain the internal and external parameters of the camera. The Gaussian kernel function is used to convolute the image to highlight the lane lines, and then an iterative threshold method is used to segment the image. A searching method is applied in the top-view image obtained from the inverse perspective transformation to determine the lane points and their positions. Combining with feature voting mechanism, the detected lane points are fitted as a straight line. Kalman filter is then applied to optimize and track the lane lines and improve the detection robustness. The experimental results show that the proposed method works well in various road conditions and meet the real-time requirements.
( Shanze Yi ),( Dewei Niu ),( Fang Bai ),( Shuaiguang Li ),( Luyuan Huang ),( Wenyan He ),( Anand Prasad ),( Alexander Czachor ),( Lee Charles Tan ),( Narasaiah Kolliputi ),( Feng Wang ) 한국미생물 · 생명공학회 2016 Journal of microbiology and biotechnology Vol.26 No.11
Manganese superoxide dismutase (MnSOD) is a vital enzyme that protects cells from free radicals through eliminating superoxide radicals (O<sup>2-</sup>). Hirudin, a kind of small active peptide molecule, is one of the strongest anticoagulants that can effectively cure thrombus diseases. In this study, we fused Hirudin to the C terminus of human MnSOD with the GGGGS linker to generate a novel dual-feature fusion protein, denoted as hMnSOD-Hirudin. The hMnSOD-Hirudin gene fragment was cloned into the pET15b (SmaI, CIAP) vector, forming a recombinant pET15b-hMnSOD-Hirudin plasmid, and then was transferred into Escherichia coli strain Rosetta-gami for expression. SDS-PAGE was used to detect the fusion protein, which was expected to be about 30 kDa upon IPTG induction. Furthermore, the hMnSOD-Hirudin protein was heavily detected as a soluble form in the supernatant. The purification rate observed after Ni NTA affinity chromatography was above 95%. The hMnSOD-Hirudin protein yield reached 67.25 mg per liter of bacterial culture. The identity of the purified protein was confirmed by western blotting. The hMnSOD-Hirudin protein activity assay evinced that the antioxidation activity of the hMnSOD-Hirudin protein obtained was 2,444.0 ± 96.0 U/㎎, and the anticoagulant activity of the hMnSOD-Hirudin protein was 599.0 ± 35.0 ATU/㎎. In addition, in vitro bioactivity assay showed that the hMnSODHirudin protein had no or little cytotoxicity in H9c2, HK-2, and H9 (human CD<sub>4</sub> <sup>+</sup>, T cell) cell lines. Transwell migration assay and invasion assay showed that the hMnSOD-Hirudin protein could suppress human lung cancer 95-D cell metastasis and invasion in vitro.
Katsuki, Hiroaki,Choi, Eun-Kyoung,Lee, Won-Jun,Cho, Woo-Seok,Hwang, Kwang-Taek,Huang, Wenyan,Komarneni, Sridhar Elsevier 2017 CERAMICS INTERNATIONAL Vol.43 No.16
<P><B>Abstract</B></P> <P>The effect of mixing process of FeCl<SUB>3</SUB> and NaOH solution on the formation of platy (hexagonal) α-Fe<SUB>2</SUB>O<SUB>3</SUB> was investigated at 160 and 180°C by the hydrothermal process. The crystal growth of platy α-Fe<SUB>2</SUB>O<SUB>3</SUB> was promoted at higher hydrothermal temperature, higher concentration of NaOH solution and by the addition of FeCl<SUB>3</SUB> solution to NaOH solution instead of the reverse addition. Platy crystals of α-Fe<SUB>2</SUB>O<SUB>3</SUB> showed dark red wine color while nanophase equiaxed crystals showed yellowish red color. The platy crystals of 3–6µm in average diameter kept their platy structure after heating at 900 and 1100°C in air due to their higher thermal stability towards sintering.</P>