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
资源简介: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...
上传时间: 2014-01-16
上传用户:6546544
资源简介:This paper introduces a software visualization system that: creates animations of programs without the programmer writing any animation code and provides a window interface that automatically displays program information, explicitly showing...
上传时间: 2015-09-28
上传用户:xsnjzljj
资源简介:This paper presents an overview of mobile WiMAX technology and discusses the key role of spectrum analysis for ensuring reliable systems’ operation and deployment
上传时间: 2013-12-24
上传用户:yyq123456789
资源简介:This paper presents an interactive technique that produces static hairstyles by generating individual hair strands of the desired shape and color, subject to the presence of gravity and collisions. A variety of hairstyles can be generate...
上传时间: 2013-12-20
上传用户:sssl
资源简介:This book presents an insightful view of XML that places this emerging technology in the context of the ongoing Web revolution. Written for business and technical professionals, this book revals the true value of XML for distributed informa...
上传时间: 2015-09-24
上传用户:思琦琦
资源简介:The purpose of this paper is to provide a practical introduction to the discrete Kalman filter. This introduction includes a description and some discussion of the basic discrete Kalman filter, a derivation, description and some discussio...
上传时间: 2014-11-14
上传用户:familiarsmile
资源简介:This assessment creates an initial version of the auction project that allows user to register, login, and logout. Registered users can post items (advertisements) for auction.
上传时间: 2013-12-22
上传用户:star_in_rain
资源简介:This paper is most important topic of digital photogrammetry and introduce fast stereo matching algorithm.
上传时间: 2013-12-30
上传用户:sdq_123
资源简介:This collection of 28 research papers provides an insightful overview of past and current research findings in Project Management, and takes an eye-opening excursion along frontiers fertile for future investigation.
上传时间: 2014-01-02
上传用户:ecooo
资源简介:This paper provides an introduction to writing concurrent programs with 鈥渢hreads鈥?
上传时间: 2017-04-24
上传用户:wys0120