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是一本电子图书，与创业相关，对于商业设计大赛有参考作用-Is an electronic book, and entrepreneurship related to business has reference to the role of Design Competition

This paper introduces an affine invariant of trapezia, and the explicit constraint equation between the intrinsic matrix of a camera and the similarity invariants of a trapezium are established using the affine invariant. By this constraint, the inner parameters, motion parameters of the cameras and the similarity invariants of trapezia can be linearly determined using some prior knowledge on the cameras or the trapezia. The proposed algorithms have wide applicability since parallel lines are not rare in many scenes. Experimental results validate the proposed approaches. This work presents a unifying framework based on the parallelism constraint, and the previous methods based on the parallelograms or the parallelepipeds can be integrated into this framework. Key words: invariant parallelism constraint camera calibration 3D reconstruction

－、电力新技术的社会需求 二、高效洁净的燃煤发电技术 三、输电技术进展 四、新型紧凑化电气设备 五、分布式发电装置 六、现代配电系统 --, The power of new technology needs of the community second, clean and efficient coal-fired power generation technology three to four transmission of technical progress, the new compact five of electrical equipment, distributed power generation device 6, a modern distribution system

中国移动的彩信业务规范，对于才发基于彩信的业务平台和应用软件很有帮助-China Mobile MMS business standards for the only fat based on the MMS platform and the business application software helpful

这里给出ORL人脸库，以及应用VC++实现人脸图像的分类识别，希望对大家有所帮助。-here is the ORL, and the application of VC Face Image Recognition, We want to help.

通软Prolution集团管理软件白皮书,正在做相关行业初期了解的同志们可以-Qualcomm soft Prolution Group Management Software White Paper, is to do the initial understanding of related industries can Comrades

北京大学gis的发展研究历史，对于研究gis的人来说具有一定的参考利用价值。-University of Development Studies gis history research gis people who have a certain reference value.

好的ARM书籍，包括在ARM上的移植，技术，和展望，来自国内外著名的期刊-ARM good books, including the transplantation in the ARM, technology, and outlook, a well-known periodicals from home and abroad

stream mutimedia 中国P2P流媒体研究报告-stream mutimedia China P2P Streaming Media Report

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