中国科学院机构知识库网格系统: 检索

A Robust Infrared Small Target Detection Method Jointing Multiple Information and Noise Prediction: Algorithm and Benchmark 期刊论文 OAI收割
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, 2023, 卷号: 61, 页码: 17
作者: Meng, Siqiang; Zhang, Congxuan; Shi, Qi; Chen, Zhen; Hu, Weiming

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收藏 | 浏览/下载：19/0 | 提交时间：2023/11/17

Dataset infrared small target detection (IRSTD) multiple information noise prediction regional positioning

Research on Precision Positioning Technology of High Dynamic Target Based on Motion Platform 会议论文 OAI收割
Chongqing, China, 2022-03-04
作者: Xie, Meilin; Cao, Yu

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收藏 | 浏览/下载：147/0 | 提交时间：2022/04/27

High Dynamic Precision Measurement Target Positioning Motion Platform

Research on photogrammetry-based positioning of heavy ion radiotherapy and tumor target monitoring 期刊论文 OAI收割
RADIATION EFFECTS AND DEFECTS IN SOLIDS, 2021, 页码: 14
作者: Chen, W. J.; Yang, Y. Q.; Zheng, Y. J.; Zhang, B.; Wang, S. M.

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收藏 | 浏览/下载：35/0 | 提交时间：2021/12/09

Heavy ion radiotherapy photogrammetry 3D control network patient positioning target area monitoring

Location of Static Targets on the Seabed: A Study 期刊论文 OAI收割
JOURNAL OF INTERNET TECHNOLOGY, 2020, 卷号: 21, 期号: 5, 页码: 1563-1569
作者: Yao, Biyuan; Cao, Xinghui; Shen, Binjian; Li, Guiqing; Yin, Jianhua

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收藏 | 浏览/下载：29/0 | 提交时间：2020/12/17

Static target Weighted centroid localization algorithm Least square localization algorithm Positioning error

Visual Tracking and Positioning for an Astronaut Assistant Robot 会议论文 OAI收割
Shenyang, China, August 24-27, 2018
作者: Dai LH(戴立红); Liu JG(刘金国)

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收藏 | 浏览/下载：24/0 | 提交时间：2018/12/24

Astronaut Assistant Robot Positioning Target Feature Template Local Search

Design and research of automobile anti-collision warning system based on monocular vision sensor with license plate cooperative target 期刊论文 OAI收割
Multimedia Tools and Applications, 2016, 页码: 1-14
作者: Qin LJ(秦丽娟); Wang T(王挺)

收藏 | 浏览/下载：22/0 | 提交时间：2016/11/01

Automobile anti-collision warning system Monocular vision sensor License plate cooperative target Positioning

基于视觉的靶精密定位与多光束引导技术研究 学位论文 OAI收割
工学博士, 中国科学院自动化研究所: 中国科学院大学, 2014
作者: 张鹏程

收藏 | 浏览/下载：113/0 | 提交时间：2015/09/02

显微视觉标定靶的跟踪与定位多光斑跟踪与引导视觉反馈控制束靶耦合 Microscopic Camera Calibration Target Tracking and Positioning Multiple Laser Beams Tracking and Guiding Visual Feedback Control Beam and Target Alignment

3R intersection target positioning in real time based on distance (EI CONFERENCE) 会议论文 OAI收割
2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China
Nengwei W.; Juan C.; Jian C.

收藏 | 浏览/下载：15/0 | 提交时间：2013/03/25

The positioning error based on angle angle-distance or single station positioning increases with the distance increasing. 3R target positioning based on distance can obtain the high precision measurements in long distance. Here we give the 3R model for the intersection positioning provide the two necessary conditions for getting the optimum intersection point. The experimental results show that the intersection precision based on angle is over 2m and will degrade greatly with the increasing of distance while the one based on 3R model will improve and the error decrease gradually. That the precision of the distance measurement is about 1m means the 3R model is better than the angle positioning which can compensate the drawbacks of the angle positioning at short distance. 2010 IEEE.

Inspection focus technology of space tridimensional mapping camera based on astigmatic method (EI CONFERENCE) 会议论文 OAI收割
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Detector, Imager, Display, and Energy Conversion Technology, April 26, 2010 - April 29, 2010, Dalian, China
作者: Wang Z.; Wang Z.; Zhang L.; Zhang L.

收藏 | 浏览/下载：29/0 | 提交时间：2013/03/25

The CCD plane of the space tridimensional mapping camera will be deviated from the focal plane(including the CCD plane deviated due to camera focal length changed) under the condition of space environment and vibration impact when satellite is launching image resolution ratio will be descended because defocusing. For tridimensional mapping camera principal point position and focal length variation of the camera affect positioning accuracy of ground target conventional solution is under the condition of vacuum and focusing range calibrate the position of CCD plane with code of photoelectric encoder when the camera defocusing in orbit the magnitude and direction of defocusing amount are obtained by photoelectric encoder then the focusing mechanism driven by step motor to compensate defocusing amount of the CCD plane. For tridimensional mapping camera under the condition of space environment and vibration impact when satellite is launching if the camera focal length changes above focusing method has been meaningless. Thus the measuring and focusing method was put forward based on astigmation a quadrant detector was adopted to measure the astigmation caused by the deviation of the CCD plane refer to calibrated relation between the CCD plane poison and the asrigmation the deviation vector of the CCD plane can be obtained. This method includes all factors caused deviation of the CCD plane experimental results show that the focusing resolution of mapping camera focusing mechanism based on astigmatic method can reach 0.25 m. 2010 Copyright SPIE - The International Society for Optical Engineering.

Line-of-sight locating algorithm for staring imaging aerial remote sensor (EI CONFERENCE) 会议论文 OAI收割
2010 3rd IEEE International Conference on Computer Science and Information Technology, ICCSIT 2010, July 9, 2010 - July 11, 2010, Chengdu, China
作者: Li Y.; Li Y.; Li Y.; Li Y.; Li J.

收藏 | 浏览/下载：27/0 | 提交时间：2013/03/25

A line-of-sight (LOS) Locating algorithm for staring imaging is presented in this paper. Staring imaging is an imaging mode for aerial remote sensor which photographs the designated earth-fixed target in muItidirections. Therefore the details of interesting targets is available. For the target obscured or disguised its advantage becomes more apparent. This paper proposes the method using two-axis rotation to achieve staring imaging and establishes the system model and the associated coordinates. Adopting the method of coordinate transformation the LOS Locating algorithm is constructed which determines the LOS direction. For the validation of algorithm Target Geolocation Algorithm is established using Simulink library blocks. Eventually it proves the feasibility of the LOS Locating algorithm. This article provides a thought of LOS Locating algorithm for staring imaging. The method of coordinate transformation used in this paper can be applied to line-of-sight positioning in other imaging modes. 2010 IEEE.