Title
Towards the recovery of extrinsic camera parameters from video records of sewer surveys
Abstract
.   The aim of the work reported here is the recovery, from a single image taken inside a roughly cylindrical brick sewer pipe of diameter up to one meter, of the pose of the camera relative to the central axis of the pipe. It is shown that the vanishing point associated with the longitudinal mortar lines carries valuable information about the pose. A method for the automatic detection of this point is presented and used to analyse the camera rotations underlying a number of sewer survey videos. It is similarly shown how the angles between the images of the longitudinal lines can be used to recover information about camera pose. The techniques might form an active part of a more comprehensive image understanding system recovering the three-dimensional shape of a surveyed pipe from survey videos and/or be used as an experimental tool during the design of such a system.
Year
DOI
Venue
1998
10.1007/s001380050090
Mach. Vis. Appl.
Keywords
Field
DocType
vanishing point,camera calibration,brick sewers,three dimensional
Computer vision,Computer graphics (images),Computer science,Cylinder,Camera auto-calibration,Camera resectioning,Metre (music),Artificial intelligence,Brick,Vanishing point,Pinhole camera model
Journal
Volume
Issue
ISSN
11
2
0932-8092
Citations 
PageRank 
References 
10
1.01
11
Authors
3
Name
Order
Citations
PageRank
D. Cooper1101.01
Tony P. Pridmore214340.24
Neil Taylor3101.01