Distinctive Image Features from Scale-invariant Keypoints
標簽： Scale-invariant Distinctive Keypoints Features
上傳時間： 2013-12-26
上傳用戶：黃華強
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
標簽： introduces constraint invariant explicit
上傳時間： 2014-01-16
上傳用戶：6546544
Degraded Image Analysis:An invariant Approach一篇經典的關于不變矩的文章。
標簽： invariant Degraded Analysis Approach
上傳時間： 2016-01-05
上傳用戶：ddddddos
A Matlab toolbox for exact linear time-invariant system identification is presented. The emphasis is on the variety of possible ways to implement the mappings from data to parameters of the data generating system. The considered system representations are input/state/output, difference equation, and left matrix fraction. KEYWORDS: subspace identification, deterministic subspace identification, balanced model reduction, approximate system identification, MPUM.
標簽： identification time-invariant presented emphasis
上傳時間： 2013-12-28
上傳用戶：wfl_yy
（1）ICCV1999 Object Recognition from Local Scale-invariant Features.pdf提出（2）IJCV2004 Distinctive image features from scale invariant keypoints.pdf總結（3）CVPR2004 PCA-SIFT：A More Distinctive Representation for Local Image Descriptors.pdf加PCA降維
標簽： Scale-invariant Distinctive Recognition Features
上傳時間： 2013-12-27
上傳用戶：yepeng139
Robust Pose invariant Facial Feature Detection and Tracking in Real-Time
標簽： invariant Detection Real-Time Tracking
上傳時間： 2017-04-12
上傳用戶：gmh1314
A set of functions to calculate Hu s seven invariant moments. Good accuracy. Written for my Project work
標簽： functions calculate invariant accuracy
上傳時間： 2017-05-02
上傳用戶：yangbo69
Hu s invariant moments, easy to undersy\tand
標簽： invariant moments undersy easy
上傳時間： 2017-05-20
上傳用戶：stvnash
Affine invariant moments
上傳時間： 2017-05-20
上傳用戶：417313137
Affine invariant moments using Graph method
標簽： invariant moments Affine method
上傳時間： 2017-05-20
上傳用戶：ippler8
