Consider the least squares fit for optical flow: ... Best fit is degraded due to the outliers ... Use inliers only to fit a model. Bahadir K. Gunturk. 12 ...
Exploring Official Results for anomalies. Confirming Outliers and Inliers ... Create and train election officials in new process recording and Sample Vote ...
Create an Adjacency matrix where element {i,j}=consistency of measurements i and j ... Average Connectivity. Use average inlier connectivity as our metric: ...
Fitting Marc Pollefeys COMP 256 Some s and illustrations from D. Forsyth, T. Darrel, A. Zisserman, ... Tentative class schedule Final project presentation ...
Triangulation and Multi-View Geometry Class 9 Read notes Section 3.3, 4.3-4.4, 5.1 (if interested, read Triggs s paper on MVG using tensor notation, see http://www ...
Most interesting case is when criterion is not local. can't tell whether a set of points lies on a line by looking only at each point and the next. ...
Title: PowerPoint Presentation Last modified by: Georgios Giannakis Created Date: 1/1/1601 12:00:00 AM Document presentation format: Letter Paper (8.5x11 in)
Building Recognition Landry Huet Sung Hee Park DW Wheeler Problem Statement Identify Stanford buildings from photos 16 buildings Database of 300 pictures Fast enough ...
Corner Detection Basic idea: Find points where two edges meet i.e., high gradient in two directions Cornerness is undefined at a single pixel, because there ...
P-T-t Paths and Their Significance Metamorphic Field Gradient Trend of Thermal Maxima Across Metamorphic Facies Clockwise P-T-t Path P-T-t Path Reflecting Crustal ...
Recognising Panoramas M. Brown and D. Lowe, University of British Columbia Introduction Are you getting the whole picture? Compact Camera FOV = 50 x 35 Introduction ...
Select sample of m points at random. Calculate model parameters that fit ... Draw Tl samples from (1 ... l) Draw Tl 1 ... 1. Draw Tl 1 - Tl samples of ...
Maximum-Likelihood Image Matching Zheng Lu Introduction SSD(sum of squared difference) Is not so robust A new image matching measure Based on maximum-likelihood ...
ROBOT VISION Lesson 6: Shape from Stereo Matthias R ther Slides partial courtesy of Marc Pollefeys Department of Computer Science University of North Carolina ...
SVD from linearly computed F matrix (rank 3) Compute closest rank-2 approximation ... Compute possible l as eigenvalues of (only real solutions are potential ...
Parameter estimation Automatic computation of H Objective Compute homography between two images Algorithm Interest points: Compute interest points in each image ...
Clustering Methods: Part 7 Outlier removal Pasi Fr nti Speech and Image Processing Unit School of Computing University of Eastern Finland Outlier detection methods ...
Multiple View Geometry Marc Pollefeys University of North Carolina at Chapel Hill Modified by Philippos Mordohai * Uniqueness constraint In an image pair each pixel ...
Multiple View Geometry Problem with eight-point algorithm Weak-calibration Experiments Epipolar geometry example problem for epipolar transfer in trifocal plane!
Measurement Consistency. Consider pair-wise measurement consistency ... Create an Adjacency matrix where element {i,j}=consistency of measurements i and j ...
calibration' needs 3d info, point-correspondence does not, but not 3d reconstruction ... Take the pixel having the highest correlation score as the correspondence ...
by Josh Wills. Pictures. Algorithm Summary. Compute a set of correspondences ... Use Levenberg-Marquardt to get a better estimation of F (and therefore P and P' ...
Omnidirectional camera model analysis. Ref: 'Panoramic Mosaicing with a 180 Field of View Lens' Using epipolar curve to evaluate the estimated camera model ...
If a set of point correspondences in two views determine the ... Robust matcher also finds. support for wrong hypothesis. solution: detect repetition ...
Performance Characteristics of a. Pseudo-operational ... Altimeter. Surface. 18 UTC. 12 UTC. 06 UTC. 00 UTC. Variables. Obs. Type. Probabilistic Analyses ...
Mirror intersection (xm, ym, zm) Object ray: P = (X, Y, Z) Image ... Functions ci(x) and Jacobians Ci are given by composition of individual transforms. ...
courtesy of Andrew Zisserman. Computer. Vision. Example: motion ... courtesy of Andrew Zisserman. Computer. Vision. Fundamental matrix for pure translation ...
Let us start with affine transformations. Simple fitting procedure (linear least squares) ... Fitting an affine transformation ... Beyond affine transformations ...
Generalized Hough transform Vote for each potential match according to model ID and pose Insert ... Solution for affine parameters Affine transform of [x,y ...
two vectors a and b are 'mutual neighbors' if both links a b and b a. ... For each pair of vectors, create edge in mutual graph, if there are edges ab and ba. ...
Object Recognition with Invariant Features Definition: Identify objects or scenes and determine their pose and model parameters Applications Industrial automation and ...
Unknown camera viewpoints Applications For computer vision, ... Enforcing Metric Constraints Compute A such that rows of M have these properties Trick ...
The problem according to Phil Torr: how to detect a set of independently moving ... Many practical applications for motion segmentation. Navigation ...
Homography between. image plane. plane at infinity. Navigation by the stars: Image of stars ... e.g. translation, homography, Fundamental matrix, etc. ...
Wide-Area Localization from Omnidirectional Video and Known 3D Structure. Olivier Koch ... PointGrey Research Ladybug Camera. Field of view: ~75% of full sphere ...
Nasty, consistent-looking outliers. There's no signal at all here... Path with no priors (this work) Note accuracy up to global translation/rotation ...
Steps Towards A Hand-Held Scanner for Large-Format Images COMP 256 Adrian Ilie Previous Work: Panoramas Feature extracting: use SIFT, since they are scale ...
Chromosomal aberrations are being investigated as diagnostic indicators of ... Some false positives are they real? Pooling across chromosomes results in big gains ...