4篇
您的检索式：作者名="Zhanyi SUN"
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| 1 | Geographic,Geometrical and Semantic Reconstruction of Urban Scene from High Resolution Oblique Aerial Images显示文摘An effective approach is proposed for 3D urban scene reconstruction in the form of point cloud with semantic labeling. Starting from high resolution oblique aerial images,our approach proceeds through three main stages: geographic reconstruction, geometrical reconstruction and semantic reconstruction. The absolute position and orientation of all the cameras relative to the real world are recovered in the geographic reconstruction stage. Then, in the geometrical reconstruction stage,an improved multi-view stereo matching method is employed to produce 3D dense points with color and normal information by taking into account the prior knowledge of aerial imagery.Finally the point cloud is classified into three classes(building,vegetation, and ground) by a rule-based hierarchical approach in the semantic reconstruction step. Experiments on complex urban scene show that our proposed 3-stage approach could generate reasonable reconstruction result robustly and efficiently.By comparing our final semantic reconstruction result with the manually labeled ground truth, classification accuracies from86.75% to 93.02% are obtained. | Xiaofeng Sun Shuhan Shen Hainan Cui Lihua Hu Zhanyi Hu | 2019 | IEEE/CAA Journal of Automatica Sinica2019，6，1： | 2 |
| 2 | Twining and dynamic precipitation upon hot compression of a Mg-Gd-Y-Nd-Gr alloy 显示文摘 | Hou Xiuli Cao Zhanyi Sun Xu | 2012 | Journal of Alloys and Compounds2012，525，： | 1 |
| 3 | Multi-source coordinated stochastic restoration for SOP in distribution networks with a two-stage algorithm显示文摘After suffering from a grid blackout, distributed energy resources(DERs), such as local renewable energy and controllable distributed generators and energy storage can be used to restore loads enhancing the system’s resilience. In this study, a multi-source coordinated load restoration strategy was investigated for a distribution network with soft open points(SOPs). Here, the flexible regulation ability of the SOPs is fully utilized to improve the load restoration level while mitigating voltage deviations. Owing to the uncertainty, a scenario-based stochastic optimization approach was employed,and the load restoration problem was formulated as a mixed-integer nonlinear programming model. A computationally efficient solution algorithm was developed for the model using convex relaxation and linearization methods. The algorithm is organized into a two-stage structure, in which the energy storage system is dispatched in the first stage by solving a relaxed convex problem. In the second stage, an integer programming problem is calculated to acquire the outputs of both SOPs and power resources. A numerical test was conducted on both IEEE 33-bus and IEEE 123-bus systems to validate the effectiveness of the proposed strategy. | Xianxu Huo Pan Zhang Tao Zhang Shiting Sun Zhanyi Li Lei Dong | 2023 | Global Energy Interconnection2023，6，2： | 0 |
| 4 | A comparative review of the state and advancement of Site-Specific Crop Management in the UK and China显示文摘Precision agriculture, and more specifically Site-Specific Crop Management(SSCM), has been implemented in some form across nearly all agricultural production systems over the past 25 years. Adoption has been greatest in developed agricultural countries. In this review article, the current situation of SSCM adoption and application is investigated from the perspective of a developed(UK) and developing(China) agricultural economy. The current state-of-the art is reviewed with an emphasis on developments in position system technology and satellite-based remote sensing. This is augmented with observations on the differences between the use of SSCM technologies and methodologies in the UK and China and discussion of the opportunities for(and limitations to)increasing SSCM adoption in developing agricultural economies. A particular emphasis is given to the role of socio-demographic factors and the application of responsible research and innovation(RRI) in translating agritechnologies into China and other developing agricultural economies. Several key research and development areas are identified that need to be addressed to facilitate the delivery of SSCM as a holistic service into areas with low precision agriculture(PA) adoption. This has implications for developed as well as developing agricultural economies. | Zhenhong LI James TAYLOR Lynn FREWER Chunjiang ZHAO Guijun YANG Zhenhai LI Zhigang LIU Rachel GAULTON Daniel WICKS Hugh MORTIMER Xiao CHENG Chaoqing YU Zhanyi SUN | 2019 | Frontiers of Agricultural Science and Engineering2019，6，2： | 0 |
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