DocumentCode :
3533759
Title :
Improvements in intrinsic feature pose measurement for awake animal imaging
Author :
Goddard, J.S. ; Baba, J.S. ; Lee, S.J. ; Weisenberger, A.G. ; Stolin, A. ; McKisson, J. ; Smith, M.F.
Author_Institution :
Oak Ridge Nat. Lab., Oak Ridge, TN, USA
fYear :
2010
fDate :
Oct. 30 2010-Nov. 6 2010
Firstpage :
2814
Lastpage :
2818
Abstract :
Development has continued with intrinsic feature optical motion tracking for awake animal imaging to measure 3D position and orientation (pose) for motion compensated reconstruction. Prior imaging results have been directed towards head motion measurement for SPECT brain studies in awake unrestrained mice. This work improves on those results in extracting and tracking intrinsic features from multiple camera images and computing pose changes from the tracked features over time. Previously, most motion tracking for 3D imaging has been limited to measuring extrinsic features such as retro-reflective markers applied to an animal´s head. While this approach has been proven to be accurate, the use of external markers is undesirable for several reasons. The intrinsic feature approach has been further developed from previous work to provide full pose measurements for a live mouse scan. Surface feature extraction, matching, and pose change calculation with point tracking and accuracy results are described. Experimental pose calculation and 3D reconstruction results from live images are presented.
Keywords :
brain; feature extraction; image reconstruction; medical image processing; motion compensation; motion measurement; optical tracking; physiological models; position measurement; single photon emission computed tomography; 3D position measurement; SPECT brain analysis; awake animal imaging; clinical applications; human patients; intrinsic feature optical motion tracking; intrinsic feature pose measurement; motion compensated reconstruction; mouse scan; multiple camera images; retroreflective marker; surface feature extraction; Cameras; Feature extraction; Head; Mice; Three dimensional displays; Tracking;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Nuclear Science Symposium Conference Record (NSS/MIC), 2010 IEEE
Conference_Location :
Knoxville, TN
ISSN :
1095-7863
Print_ISBN :
978-1-4244-9106-3
Type :
conf
DOI :
10.1109/NSSMIC.2010.5874306
Filename :
5874306
Link To Document :
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