K
Kathy Olson
Researcher at University of Arizona
Publications - 6
Citations - 644
Kathy Olson is an academic researcher from University of Arizona. The author has contributed to research in topics: Image segmentation & Scale-space segmentation. The author has an hindex of 6, co-authored 6 publications receiving 615 citations.
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Journal ArticleDOI
A hybrid 3D watershed algorithm incorporating gradient cues and object models for automatic segmentation of nuclei in confocal image stacks
Gang Lin,Umesh Adiga,Umesh Adiga,Kathy Olson,John F. Guzowski,Carol A. Barnes,Badrinath Roysam +6 more
TL;DR: This work has shown that tight clustering of nuclei in 3D confocal microscope images is a common source of segmentation error, and a compelling need to minimize these errors for constructing highly automated scoring systems.
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A multi-model approach to simultaneous segmentation and classification of heterogeneous populations of cell nuclei in 3D confocal microscope images.
Gang Lin,Monica K. Chawla,Kathy Olson,Carol A. Barnes,John F. Guzowski,CS Bjornsson,William Shain,Badrinath Roysam +7 more
TL;DR: The multi‐model method was found to achieve high accuracy on nuclear segmentation and classification by correctly resolving ambiguities in clustered regions containing heterogeneous cell populations.
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Hierarchical, model-based merging of multiple fragments for improved three-dimensional segmentation of nuclei.
TL;DR: To achieve higher accuracy without sacrificing scale, more sophisticated yet computationally efficient algorithms are needed.
Journal ArticleDOI
3D-catFISH: a system for automated quantitative three-dimensional compartmental analysis of temporal gene transcription activity imaged by fluorescence in situ hybridization
Monica K. Chawla,Gang Lin,Kathy Olson,Almira Vazdarjanova,Sara N. Burke,Bruce L. McNaughton,Paul F. Worley,John F. Guzowski,Badrinath Roysam,Carol A. Barnes +9 more
TL;DR: A comprehensive validation of data generated by the automated software against manual quantification by human experts on hippocampal and parietal cortical regions is presented, suggesting that the software will generalize well to multiple brain areas and eventually to large-scale brain analysis.
Journal ArticleDOI
Spatial behavior and seizure-induced changes in c-fos mRNA expression in young and old rats.
Monica K. Chawla,Marsha R. Penner,Kathy Olson,Vicki L. Sutherland,Melinda A. Mittelman-Smith,Carol A. Barnes +5 more
TL;DR: Though the networks of cells that participate in behavior or seizure-induced activity are largely maintained in aged rats, their RNA transcript levels are altered, which might contribute to cognitive deficits frequently observed with advancing age.