机构

• 长春光学精密机械与物... [2]
• 沈阳自动化研究所 [1]

采集方式

• OAI收割 [3]

内容类型

• 会议论文 [2]
• 期刊论文 [1]

发表日期

• 2014 [1]
• 2010 [1]
• 2005 [1]

学科主题

筛选

浏览/检索结果: 共3条，第1-3条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 Obstacle classification and 3D measurement in unstructured environments based on ToF cameras 期刊论文  OAI收割 SENSORS, 2014, 卷号: 14, 期号: 6, 页码: 10753-10782 作者:  Yu HS(余洪山);  Zhu J(朱江);  Wang YN(王耀南);  Jia, Wenyan;  Sun, Mingui   |  收藏  |  浏览/下载：17/0  |  提交时间：2014/11/03 Mobile Robotic Navigation  Obstacle Detection And Classification  Time-of-flight Camera  Region Of Interest Detection  Unstructured Environment Perception   Method of improving the accuracy of image motion measurement for panoramic aerial cameras (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:  Jia P. 收藏  |  浏览/下载：25/0  |  提交时间：2013/03/25 To improve the accuracy of image motion measurement for panoramic aerial cameras  the paper proposed a method of real-time image motion measurement based on 2D spatial correlation. An auxiliary area CCD is positioned paralleled to the main linear TDI CCD in the focal plane of the camera. For every frame of the image sequence taken by the auxiliary CCD  a prediction on the displacement of the current image in the flight direction is made based on the forward image motion velocity. The current and the reference images are combined together for 2D-correlation  which products an image motion vector. By decomposing the vector  both the forward and pendulum-swing image motions can be determined. The demanding computational requirements for the real-time 2D-correlation are covered by a joint transform optical correlator. Simulation test results show that the accuracy is improved and the measurement error is within 0.2 pixels for input images with SNR=1 dB. 2010 Copyright SPIE - The International Society for Optical Engineering.   High-speed CCD camera system for the measurement of flight time of cannonballs (EI CONFERENCE) 会议论文  OAI收割 2005 Beijing International Conference on Imaging: Technology and Applications for the 21st Century, May 23, 2005 - May 26, 2005, Beijing, China 作者:  Gong Y. 收藏  |  浏览/下载：27/0  |  提交时间：2013/03/25 We have built a high-speed  sensitive camera system to capture the image sequence of cannonballs with accurate time reference  which can measure the flight time of cannonballs between leaving the cannon and explosion precisely. The camera system is composed of two identical cameras of high frame frequency linear CCD calibrated with the same time base. In this paper we present the operating principle of the camera system and discuss the scheme of high-speed processing of volumes of image data. The real-time measurement less than 1 millisecond can be achieved by the proposed approach.