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	An Improved Instance Segmentation Approach for Solid Waste Retrieval with Precise Edge from UAV Images 期刊论文 OAI收割 REMOTE SENSING, 2025, 卷号: 17, 期号: 20, 页码: 3410 作者: Huang, Yaohuan; Chen, Zhuo \| 收藏 \| 浏览/下载：1/0 \| 提交时间：2025/12/19 solid waste deep learning instance segmentation Mask R-CNN precise edge
	The research of rigid lapping technique on diamond grating ruling tool (EI CONFERENCE) 会议论文 OAI收割 2010 International Conference on Materials Science and Engineering Science, ICMSES 2010, December 11, 2010 - December 12, 2010, Shenzhen, China Jirigalantu A.; Bayanheshig; Dong Q. X. 收藏 \| 浏览/下载：49/0 \| 提交时间：2013/03/25 One of the effective method of improving diamond tool life on rulling large diffraction gratings is developing precise double-cone edged on line edge transfering tool. But traditional died weight or manual lapping technique couldn't meet the precision requirement of on line edge transfering tool. So preliminary studied rigid lapping of diamond grating ruling tool. Choosing traditional BC6063 shaping machine and made a series of alteration on it achieved the automation of lapping process of diamond grating ruling tool. Through lapping grating ruling tool and AFM measurement find that the surface roughness of tool is 1.51nm the radius of tool edge is 160nm edge quality is good enough this verified the feasibility of rigid lapping of diamond grating ruling tool and lay the foundation for developing precision lapping machine. (2011) Trans Tech Publications Switzerland.
	Far-field focusing of laser beam based on digital image processing techniques (EI CONFERENCE) 会议论文 OAI收割 Optoelectronic Imaging and Multimedia Technology, October 18, 2010 - October 20, 2010, Beijing, China 作者: Zhao S.; Tian Y.-Z.; Liu L.-S.; Guo J.; Zhang H.-Y. 收藏 \| 浏览/下载：47/0 \| 提交时间：2013/03/25 In order to lead the laser beam transmit in the atmosphere convergently an experiment of laser focus at the distance of 450m and 300m has been operated in the outdoor place. The actual manipulations are as follows: Firstly the laser was collimated by a beam expander then the near-parallel laser beam was transmitted with a Galileo telescope system and the distance between the concave lens and the convex lens can be tuned through a precise displacement platform so the focus of the system changed due to the tiny displacement of the concave lens. Secondly the average power of the laser spot can be measured using power meter the power is 47.67mW and the standard deviation is 0.67mW while the focal length is 450m. Thirdly the energy distribution was found through the laser beam analyzer. The spot images were saved using the beam analyzer then the saved image can be processed with Matlab software afterwards. The function named EDGE and Sobel operator was used in the pre-processing of the saved image then method of median filter was used in the course of image de-noising and 53H filter was adopted in the signal analysis. The diameter of laser spot was obtained by the method above the diameter is 5.56mm and the standard deviation is 0.24mm. The spot center excursion is 0.56mm it is 10.43% of the total diameter of the laser spot. At last the key factors of the energy dissipation in the focusing system can be summarized as follows: restriction of the diffraction limit attenuation in the atmosphere geometrical aberration of optical system and the diffraction limit and the geometrical aberration are significant in the three factors above so we can reduce the impact of the both factors during the design of optical system. The reliable referenced data of the system design can be acquired through the primary experiment research. 2010 SPIE.
	Application of airborne hyperspectral data for precise agriculture 会议论文 OAI收割 Igarss 2004: Ieee International Geoscience and Remote Sensing Symposium Proceedings, Vols 1-7: Science for Society: Exploring and Managing a Changing Planet, New York Guan, YN; Guo, S; Xue, Y; Liu, JG; Zhang, X 收藏 \| 浏览/下载：48/0 \| 提交时间：2014/12/07 hyperspectral data algorithms chlorophyll a precise agriculture RED EDGE LEAVES REFLECTANCE VEGETATION