A Video Traffic Flow Detection System Based on Machine Vision

Xin-Xin Wang,Xiao-Ming Zhao,Yu Shen 한국정보처리학회 2019 Journal of information processing systems Vol.15 No.5

This study proposes a novel video traffic flow detection method based on machine vision technology. The threeframedifference method, which is one kind of a motion evaluation method, is used to establish initialbackground image, and then a statistical scoring strategy is chosen to update background image in real time. Finally, the background difference method is used for detecting the moving objects. Meanwhile, a simple buteffective shadow elimination method is introduced to improve the accuracy of the detection for moving objects. Furthermore, the study also proposes a vehicle matching and tracking strategy by combining characteristics,such as vehicle’s location information, color information and fractal dimension information. Experimentalresults show that this detection method could quickly and effectively detect various traffic flow parameters,laying a solid foundation for enhancing the degree of automation for traffic management.

Numerical Analysis of Molten Salt Droplets in Gas Flow with Solidification

Xin Ming Wang,Hirokuni Hiyama,Hiroyuki Hashimoto 대한기계학회 1998 KSME/JSME THERMAL and FLUID Engineering Conference Vol.1 No.1

OsMSR15 encoding a rice C2H2-type zinc finger protein confers enhanced drought tolerance in transgenic Arabidopsis

Xin Zhang,Bin Zhang,Ming Juan Li,Xu Ming Yin,Li Fang Huang,Yan Chun Cui,Man Ling Wang,Xin Jie Xia 한국식물학회 2016 Journal of Plant Biology Vol.59 No.3

Zinc nger proteins (ZFPs) play important roles in plant responses to biotic and abiotic stresses. Through microarray analysis, an Oryza sativa L. multi-stress-responsive gene, OsMSR15, was identied and subsequently cloned from rice Pei’ai 64S (Oryza sativa L.). Expression of OsMSR15 was strongly up-regulated by cold, drought and heat stresses in different tissues at different developmental stages of rice. OsMSR15 contains two C2H2-type zinc nger motifs, a nuclear localization signal (B box), a Leu-rich domain (L-box) and a conserved EAR-motif close to its C-terminus. The OsMSR15-GFP fusion protein was localized to the nucleus. Yeast-one hybrid assay showed that OsMSR15 possesses transcriptional activation ability. Expression of OsMSR15 in Arabidopsis conferred drought tolerance, and transgenic plants showed hypersensitivity to exogenous ABA during the seed germination and post-germination stages. Transgenic plants also showed higher levels of free proline, less electrolyte leakage and increased expressions of a number of stress-responsive genes, including LEA3, RD29A, DREB1A and P5CS1 under drought stress. The obtained results indicate that OsMSR15 is an important regulator involved in plant response to drought stress.

A Street-Centric Routing Protocol Based on Microtopology in Vehicular Ad Hoc Networks

Zhang, Xin Ming,Chen, Kai Heng,Cao, Xu Lei,Sung, Dan Keun IEEE 2016 IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY Vol.65 No.7

<P>In a vehicular ad hoc network (VANET), high-mobility and uneven distribution of vehicles are important factors affecting the performance of routing protocols. The high mobility may cause frequent changes of network topology, whereas the uneven distribution of vehicles may lead to routing failures due to network partition; even high density of vehicles may cause severe wireless channel contentions in an urban environment. In this paper, we propose a novel concept called the microtopology (MT), which consists of vehicles and wireless links among vehicles along a street as a basic component of routing paths and even the entire network topology. We abstract the MT model reflecting the dynamic routing-related characteristics in practical urban scenarios along streets, including the effect of mobility of vehicles, signal fading, wireless channel contention, and existing data traffic. We first analyze the endside-to-endside routing performance in an MT as a basis of routing decision. Then, we propose a novel street-centric routing protocol based on MT (SRPMT) along the streets for VANETs. Simulation results show that our proposed SRPMT protocol achieves higher data delivery rate and shorter average end-to-end delay compared with the performance of greedy perimeter stateless routing (GPSR) and greedy traffic-aware routing (GyTAR).</P>

Overexpression of Chalcone Isomerase (CHI) Increases Resistance Against Phytophthora sojae in Soybean

Jin-ming Zhao;Han Xing,Yang Zhou; Jian-li Huang; Xiao-li Zhang; Long-ming Zhu; Xin-fang Wang 한국식물학회 2018 Journal of Plant Biology Vol.61 No.5

Chalcone isomerase (CHI) is a key enzyme ofthe flavonoid pathway that plays crucial roles in plant responsesto various pathogens. Our previous study using comparativetranscriptome analysis of soybean inoculated with or withoutPhytophthora sojae revealed Glyma.20G241500, a homologof CHI1A in Arabidopsis thaliana, to be induced by P.sojaein soybean. In the present study, we isolated the gene fromsoybean cultivar Nannong 10-1, designating it GmCHI1A. GmCHI1A transcripts were detected in soybean roots, stemsand leaves, with the highest levels in roots. Interestingly,GmCHI1A localizes to the cortical endoplasmic reticulum(ER). GmCHI1A was overexpressed in hairy roots to furtheruncover the roles of CHIs in soybean. Compared to emptyvector-expressing hairy roots (EV) infected with P. sojae,hairy roots overexpressing GmCHI1A (OE) exhibited decreasedP. sojae biomass accumulation, shortened the lesion lengthsand reduced zoospores germination. These results demonstratethat GmCHI1A plays positive roles in the response ofsoybean to P. sojae.

Evaluation and Utilization of Xinjiang Melon (Cucumis melo ssp. melo) Germplasm Resources

Wu ming zhu,Yi hong ping,Feng jiong xin,Li jin song,Wang deng ming,Aken ya sheng,Zhang yong bing,Zhai wen qiang,Wu hai bo 한국원예학회 2006 한국원예학회 기타간행물 Vol.- No.-

중국 공공문화 서비스체계 시범지구 조성의 성과에 관한 연구

명흠 ( Ming Xin ),이현성 ( Lee Hyunsung ),김주연 ( Kim Jooyun ) 한국공간디자인학회 2022 한국공간디자인학회논문집 Vol.17 No.7

(연구배경 및 목적) 본 연구는 중국 공공문화 서비스체계 시범지구 성과의 문헌고찰을 통해 시범지구 조성에서 나타날 수 있는 문제점을 가설한다. 가설을 검증하기 위해 다기 이중차분법(Difference-in-Difference, DID)을 활용하여 공공문화 서비스체계 시범지구 정책의 효과성과 시간적 효과를 실증분석하며 이를 통해 중국 공공문화 서비스체계 시범지구 후속 정책에 대한 제언을 한다. (연구방법) 연구방법으로는 첫째, 중국 공공문화 서비스체계 시범지구 조성성과 관련 문헌고찰을 통해 시범지구 조성에서 발생할 수 있는 문제점을 도출하고 가설로 세운다. 둘째, 도출된 가설적 문제점과 다주기 이중차분법에 따라 연구 모형을 설정한다. 셋째, 중국 도시통계연보에서 도출된 기초지표 데이터를 정리 및 실증분석을 통해 분석 결과를 도출하고 검증한다. 넷째, 실증적 결과를 분석하고 시범지구 조성정책의 문제점에 대하여 중국 공공문화 서비스체계의 후속 정책을 제언한다. (결과) 연구 분석의 결과로서는 첫째, 시범지구를 공공문화 서비스 정책의 하나로 시행하는 것이 효과적이며, 시범지구를 만드는 것이 지역의 공공문화 서비스 수준을 높이는 데 도움이 되었다. 둘째, 시간적 효과의 결과를 보면 시범지구 정책 시행 후 첫해 공공문화 서비스 수준 향상이 뚜렷하지 않고 정책 시행이 다소 지연되고 있음을 보였다. 셋째, 시범지구 정책 시행 3년 후 공공문화 서비스 수준 향상이 미진하다는 것은 시범지구 조성이 단기 효과는 있고, 장기적 효과는 없다는 것을 보였다. 그러나 2차 시범지구 시행 2년 후 공공문화 서비스 수준이 뚜렷하게 향상되었다. (결론) 연구의 결론으로는 공공문화 서비스 정책을 계속 추진하면서 공공문화 서비스 정책 시행 경험을 바탕으로 다른 공공사업 관련 정책을 보완할 수 있다. 공공문화 서비스 정책이 제대로 시행될 수 있도록 공공문화 서비스 정책과 관련한 감독·관리 제도를 강화해 시범지구 공공문화 서비스 수준을 더욱 높여야 한다. 정부에서 시행하는 공공문화 서비스체계 시범지구를 지속적인 조성하는 것은 필요하지만 각 시범지구 조성 시기를 조정해 공공문화 서비스 수준이 지속적인 향상을 도모해야 한다. (Background and Purpose) Based on a review of the literature on the achievements of demonstration areas in China's public cultural service system, this report makes certain assumptions about potential problems in the development of these areas. An empirical analysis and verification of the effectiveness and timeliness of the policy on demonstration areas in the public cultural service system was performed using the double difference method. This paper attempts to validate the hypothesis that has been proposed and offers some recommendations for follow-up by the policy on demonstration areas in the public cultural service system in China. (Method) First, potential issues in the development of a demonstration area were identified and a hypothesis was established after a review of the literature was completed on the outcomes that followed the creation of a demonstration area in China's public cultural service system. Second, the research was performed using the multi-period double difference method according to the hypothesis. Third, the study examined the fundamental index data published in the annual urban statistical report by China, and then conducted an empirical analysis to obtain its findings and confirm them. Fourth, after an empirical examination of the findings, recommendations for follow-up by the policy were made in light of the issues that were identified with the policy on building demonstration zones. (Results) First, the establishment of a demonstration area by a public cultural service policy was effective and will raise the level of regional public cultural service. Second, in the first year following the implementation of the policy, the level of public cultural services in the pilot areas did not witness a noticeable improvement. A time lag was also noted after the implementation of the policy. Third, three years after the implementation of the demonstration zone policy, the level of public cultural services did not improve significantly, which showed that the creation of demonstration zones has a short-term―rather than long-term― effect. (Conclusions) This study concludes that the implementation of the public cultural service policy can be complemented by other policies that are related to public utilities. The standard of public cultural services in demonstration areas must be enhanced to ensure that public cultural service policies are carried out and to strengthen the supervision and management system associated with public cultural service policies. Moreover, the building of demonstration areas under the public cultural service system by the government must continue. Nevertheless, the construction and interval cycles of every batch of demonstration areas must be adjusted to improve the level of public cultural service.

스마트 디바이스 기반 게임에 적합한 중국어 편방(偏旁) 입력기법의 UI 디자인 연구

명심지(Xin zhi Ming),이충헌(Choung Hun Lee),이원형(Won Hyung Lee) 한국컴퓨터게임학회 2013 한국컴퓨터게임학회논문지 Vol.26 No.4

In this paper we offered a new UI design for Chinese input method on smart devices during Gameplay. Currently the well-known conventional stroke-based Chinese input method using only five basic stroke types could achieve low leaning curve and small keypad implementation, we made the UI design base on this stroke-based input method compensating the problem that input speed is limited and finally relatively higher the input speed. For experiment we designed and implemented the new UI for input method by Unity3D. Input by pressing or typing keys is replaced by more using sliding. To improve the input speed of the stroke-based method slide direction arrows are used and selected character will be intuitively shown to user in real time as designed. And the Four Tones(四声) in Chinese pronunciation is also been used to improve the input speed for this input method. In addition, to evaluation the new input method UI, we have conducted experiments on smart device comparing with four basic Chinese input methods. Through the numeric values recorded in the evaluation by inputting random 20 Chinese characters and two-letter Chinese words, comparing the input speed, click times, the typo rate shows the advantages of the new UI and proved that the new UI is better than others for using in smart device game.

VR 환경 속에서 색온도 및 조도(照度)가 환경인지도와 길찾기에 미치는 영향

고흔명(Xin Ming Gu),이일남(Yi Nan Li) 한국디자인리서치학회 2022 한국디자인리서치 Vol.7 No.4

본 연구의 목적은 가상 환경에서 조명의 색온도, 광속(lx) 조건이 인간의 길찾기 및 환경지각에 대한 주관적 판단에미치는 영향을 탐구하는 데에 있다. 또한 CG 가상현실 환경을 통해 복잡한 평면도와 지속적 공간이 있는 가상 환경에서 색온도, 광색 및 광속의 변량을 이용하여 가상 환경의 인식 및 길찾기 능력을 해결하고 향상하게 시키는 방법을 연구하였다. 다양한 광색 조건 변수의 가상현실 환경에서 실험 참가자(N=60)의 자료를 조사하고 SD의 심리적조사 방법을 사용하여 이러한 조건 아래의 차이를 평가하였다. 그 결과 고(高)색 온도 및 중(中) 색온도의 광원 환경보다 저색 온도(난색)의 흡인력과 기억 분수가 더 높다. 하지만 고색 온도(한색) 환경은 선택의 망설임을 줄이고 더나은 통과 효율을 얻을 수 있는 것으로 나타났다. 또한 연구에 따르면 고아속이 낮은 가상 환경에서 고색 온도를 사용하든 저색 온도를 사용하든 다 부정적인 효과를 낼 것이라고 한다. 따라서 저색 온도 조명 환경은 효과적인 도로찾기 표시로 사용될 수 있고, 광범위적으로 고색 온도를 사용하는 공간 조명 조건이 도로 찾기 및 통행 효율에 더도움이 되는 것으로 간주한다. 또 여성이 남성보다 고광도 수준의 가상 환경을 선호한다는 연구 결과도 나왔다. The purpose of this study is to investigate the influence of color temperature and lx conditions on human pathfinding and environmental perception in virtual environment.In addition, in CG virtual reality environment, how to use color temperature, light color and light flux variables to solve and improve the cognitive and pathfinding ability of virtual environment is studied.The data of participants (N=60) in virtual reality environment with various light and color conditions were investigated, and the differences were evaluated using SD psychological survey method.The results show that low color temperature (warm color) has higher attraction and memory score than high color temperature and neutral color temperature.Furthermore, the study confirmed that the use of color temperature in a virtual environment with low-throughput light levels, regardless of color temperature, results in negative effects.Therefore, low color temperature (warm color) lighting environment can be used as an effective wayfinding landmark, but wider use of high color temperature (cold color) lighting conditions are considered to be more conducive to pathfinding and traffic efficiency.In addition, the results show that women prefer high-brightness virtual environments to men.

A Video Traffic Flow Detection System Based on Machine Vision

Wang, Xin-Xin,Zhao, Xiao-Ming,Shen, Yu Korea Information Processing Society 2019 Journal of information processing systems Vol.15 No.5

This study proposes a novel video traffic flow detection method based on machine vision technology. The three-frame difference method, which is one kind of a motion evaluation method, is used to establish initial background image, and then a statistical scoring strategy is chosen to update background image in real time. Finally, the background difference method is used for detecting the moving objects. Meanwhile, a simple but effective shadow elimination method is introduced to improve the accuracy of the detection for moving objects. Furthermore, the study also proposes a vehicle matching and tracking strategy by combining characteristics, such as vehicle's location information, color information and fractal dimension information. Experimental results show that this detection method could quickly and effectively detect various traffic flow parameters, laying a solid foundation for enhancing the degree of automation for traffic management.