A New High-Resolution Computed Tomography (CT) Segmentation Method for Trabecular Bone Architectural Analysis.
A study was conducted to examine the ray casting algorithm (RCA), a new, reproducible, accurate, and fully automated computerized segmentation method for high-resolution computed tomography (CT) data sets of fossil and recent cancellous bone. Data were obtained from tests of extant and fossil mater...
| Published in: | American Journal of Physical Anthropology Vol. 140; no. 1; pp. 39 - 52 |
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| Main Authors: | , |
| Format: | Article |
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John Wiley & Sons, Inc.
September 2009
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| Online Access: | View this record in EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ssf&AN=511441829&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 511441829 longDbName: Social Sciences Full Text (H.W. Wilson) uiTag: AN controlInfo: bkinfo: jinfo: jid: 00029483 APX jtl: American Journal of Physical Anthropology issn: 00029483 maglogo: N pubinfo: dt: September 2009 vid: 140 iid: 1 pid: 1246 pub: John Wiley & Sons, Inc. artinfo: ui: 511441829 ppf: 39 ppct: 13 formats: tig: atl: A New High-Resolution Computed Tomography (CT) Segmentation Method for Trabecular Bone Architectural Analysis. aug: au: Scherf, Heike Tilgner, Rico su: Digital image processing Tomography Primates -- Anatomy Primate physiology Radiography Brain Physical anthropology sug: subj: Digital image processing Tomography Primates -- Anatomy Primate physiology Radiography Brain Physical anthropology ab: A study was conducted to examine the ray casting algorithm (RCA), a new, reproducible, accurate, and fully automated computerized segmentation method for high-resolution computed tomography (CT) data sets of fossil and recent cancellous bone. Data were obtained from tests of extant and fossil material. The RCA method was compared with commonly used techniques of image thresholding—the half-maximum height protocol and the automatic, adaptive iterative thresholding procedure. While the quality of the input images is vital for conventional image segmentation, findings revealed the RCA method to be robust with regard to the signal to noise ratio, beam hardening, ring artifacts, and blurriness. Findings indicated a need for careful consideration of optimal CT scanning parameters. Findings are discussed in detail. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: N holdings: @attributes: islocal: N |
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