Document Detail

Feature-based tracking of urethral motion in low-resolution trans-perineal ultrasound.
MedLine Citation:
PMID:  22255861     Owner:  NLM     Status:  MEDLINE    
This paper describes a novel algorithm for tracking the motion of the urethra from trans-perineal ultrasound. Our work is based on the structure-from-motion paradigm and therefore handles well structures with ill-defined and partially missing boundaries. The proposed approach is particularly well-suited for video sequences of low resolution and variable levels of blurriness introduced by anatomical motion of variable speed. Our tracking method identifies feature points on a frame by frame basis using the SURF detector/descriptor. Inter-frame correspondence is achieved using nearest-neighbor matching in the feature space. The motion is estimated using a non-linear bi-quadratic model, which adequately describes the deformable motion of the urethra. Experimental results are promising and show that our algorithm performs well when compared to manual tracking.
Frédéric Jean; Alexandra Branzan Albu; Chantal Dumoulin
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference     Volume:  2011     ISSN:  1557-170X     ISO Abbreviation:  Conf Proc IEEE Eng Med Biol Soc     Publication Date:  2011  
Date Detail:
Created Date:  2012-01-18     Completed Date:  2012-08-08     Revised Date:  2014-08-21    
Medline Journal Info:
Nlm Unique ID:  101243413     Medline TA:  Conf Proc IEEE Eng Med Biol Soc     Country:  United States    
Other Details:
Languages:  eng     Pagination:  6639-42     Citation Subset:  IM    
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Artificial Intelligence
Equipment Design
Imaging, Three-Dimensional / methods
Models, Statistical
Phantoms, Imaging
Reproducibility of Results
Ultrasonography / methods*
Urethra / pathology*,  ultrasonography*
Urinary Incontinence / therapy,  ultrasonography
Video Recording

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Gap detection in endoscopic video sequences using graphs.
Next Document:  Bleeding detection in wireless capsule endoscopy images based on color invariants and spatial pyrami...