http://reply.papertrans.cn/2/161/16088/16088-31.png
http://reply.papertrans.cn/2/161/16088/16088-32.png
http://reply.papertrans.cn/2/161/16088/16088-33.png
Submitted on: 08 November 2012.
Revised on: 15 January 2013.
Accepted on: 27 February 2013.
___________________JOURNAL OF COMPUTER ASSISTED TOMOGRAPHY
http://reply.papertrans.cn/2/161/16088/16088-35.png
Submitted on: 13 March 2011.
Revised on: 13 May 2011.
Accepted on: 28 June 2011.
___________________JOURNAL OF COMPUTER ASSISTED TOMOGRAPHY