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Two Methods for Self Calibration of Digital Camera : Volume Xxxix-b1, Issue 1 (24/07/2012)

By Sampath, A.

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Book Id: WPLBN0004016366
Format Type: PDF Article :
File Size: Pages 6
Reproduction Date: 2015

Title: Two Methods for Self Calibration of Digital Camera : Volume Xxxix-b1, Issue 1 (24/07/2012)  
Author: Sampath, A.
Volume: Vol. XXXIX-B1, Issue 1
Language: English
Subject: Science, Isprs, International
Collections: Periodicals: Journal and Magazine Collection, Copernicus Publications
Historic
Publication Date:
2012
Publisher: Copernicus Publications, Göttingen, Germany
Member Page: Copernicus Publications

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Christopherson, J., Moe, D., & Sampath, A. (2012). Two Methods for Self Calibration of Digital Camera : Volume Xxxix-b1, Issue 1 (24/07/2012). Retrieved from http://www.nationalpubliclibrary.info/


Description
Description: SGT, Inc, U.S. Geological Survey (USGS) Earth Resources Observation and Science (EROS) Center, Sioux Falls, SD 57198 USA. Photogrammetric mapping using Commercial of the Shelf (COTS) cameras is becoming more popular. Their popularity is augmented by the increasing use of Unmanned Aerial Vehicles (UAV) as a platform for mapping. The mapping precision of these methods can be increased by using a calibrated camera. The USGS/EROS has developed an inexpensive, easy to use method, particularly for calibrating short focal length cameras. The method builds on a self-calibration procedure developed for the USGS EROS Data Center by Pictometry (and augmented by Dr. C.S Fraser), that uses a series of coded targets. These coded targets form different patterns that are imaged from nine different locations with differing camera orientations. A free network solution using collinearity equations is used to determine the calibration parameters. For the smaller focal length COTS cameras, the USGS has developed a procedure that uses a small prototype box that contains these coded targets. The design of the box is discussed, along with best practices for calibration procedure. Results of calibration parameters obtained using the box are compared with the parameters obtained using more established standard procedures.

Summary
TWO METHODS FOR SELF CALIBRATION OF DIGITAL CAMERA

 

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