中国科学院机构知识库网格系统: 检索

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	Sub-Pixel Scanning High-Resolution Panoramic 3D Imaging Based on a SPAD Array 期刊论文 OAI收割 IEEE PHOTONICS JOURNAL, 2021, 卷号: 13, 期号: 4 作者: Xue, Ruikai; Kang, Yan; Zhang, Tongyi; Li, Lifei; Zhao, Wei \| 收藏 \| 浏览/下载：33/0 \| 提交时间：2021/10/11 3D imaging lidar SPAD array panoramic imaging sub-pixel scanning
	Research on cylindrical labels unfolding algorithm based on machine vision 会议论文 OAI收割 Chongqing, China, March 12-14, 2021 作者: Zhang ZL(张泽鲁); Xu M(许敏); Chen S(陈帅) \| 收藏 \| 浏览/下载：27/0 \| 提交时间：2021/05/10 cylindrical labels panoramic imaging machine vision image stitching distortion correction
	The fast formation of high-precision panoramic image for the processing of borehole camera video of deep rock mass structures 期刊论文 OAI收割 BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT, 2020, 页码: 15 作者: Zou, Xianjian; Song, Huan \| 收藏 \| 浏览/下载：30/0 \| 提交时间：2021/05/25 Digital panoramic borehole camera Image mosaic and fusion Feature detection Rock mass structure Hole-wall imaging
	Morphological Feature Description Method of Structural Surface in Borehole Image During In-Situ Instrumentation 期刊论文 OAI收割 ROCK MECHANICS AND ROCK ENGINEERING, 2020, 页码: 10 作者: Zou, Xianjian; Wang, Chuanying; Wang, Yiteng; Song, Huan \| 收藏 \| 浏览/下载：11/0 \| 提交时间：2021/05/25 Digital panoramic borehole imaging Structural surface Morphological feature In-situ instrumentation Joint roughness coefficient Dominant anti-slip direction
	Variable aperture panoramic imaging 期刊论文 OAI收割 MULTIMEDIA TOOLS AND APPLICATIONS, 2018, 卷号: 77, 期号: 20, 页码: 26677-26695 作者: Lv, Jing; Zhao, Qiang; Dai, Feng; Ma, Yike; Zhang, Yongdong \| 收藏 \| 浏览/下载：34/0 \| 提交时间：2019/12/10 Panoramic imaging Aperture Depth of field effect Focus cues
	A proposed method for estimating in-situ stress direction using panoramic stereo-pair imaging and stressed borehole geometric shapes 期刊论文 OAI收割 INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES, 2018, 卷号: 104, 页码: 94-99 作者: Zou, Xianjian; Wang, Chuanying; Han, Zengqiang \| 收藏 \| 浏览/下载：33/0 \| 提交时间：2018/06/05 In-situ stress direction Borehole geometry Panoramic stereo-pair imaging Elliptical shape
	Panoramic aerial camera image motion measurement using a hybrid system (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: Jia P. 收藏 \| 浏览/下载：27/0 \| 提交时间：2013/03/25 Image motion compensation is significantly important for aerial camera photograph. To execute the compensation we must determine the image motion exactly. This paper proposes a method of real-time image motion measurement for panoramic aerial cameras based on image processing using a hybrid system. Two cameras are simultaneously used in the hybrid system. One main linear CCD for imaging while the other auxiliary low resolution high frame rate area CCD for determining the image motion based on 2D spatial correlation. The demanding computational requirements for the real-time 2D spatial 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 IEEE.
	Design of aspherical surfaces for panoramic imagers using multipopulations genetic algorithm (EI CONFERENCE) 会议论文 OAI收割 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, November 19, 2008 - November 21, 2008, Chengdu, China 作者: Jin C.-S.; Wang L.-P.; Liang Z.-Z. 收藏 \| 浏览/下载：27/0 \| 提交时间：2013/03/25 A design method of aspherical surface for panoramic imaging system with two mirrors using multi-populations genetic algorithms is proposed. Astigmatism induced by mirrors may significantly compromise image resolution. To solve this problem we induced algebraic expression of astigmatism in panoramic imager based on generalized Coddington equation and theory of geometric optics. Then we propose an optimization process for mirror profile design to eliminate astigmatism and provide purposely-designed projection formula with aid of MPGA. A series of polynomial expressions of aspherical surfaces are obtained and procedures of the design are presented. In order to facilitate ray tracing and aberration calculation even asphere surface model is obtained by using of hybrid schemes combining MPGA and damped least squares. Finally a prototype of the catadioptric panoramic imager has been developed and panoramic ring image is obtained. 2009 SPIE.