Presentation 2021-03-15
Evaluation of Bayesian Active Learning for Segmentation of Liver and Spleen in Large Scale Abdominal MR Data Sets
Bin Zhang, Yoshito Otake, Mazen Soufi, Masatoshi Hori, Noriyuki Tomiyama, Yoshinobu Sato,
PDF Download Page PDF download Page Link
Abstract(in Japanese) (See Japanese page)
Abstract(in English) Manual annotation in image segmentation is time-consuming and expensive. In order to obtain large number of annotated data set efficiently, Bayesian active learning has been proposed. The key component in the iteration in Bayesian active learning is the selection of query slices (or voxels) which maximize the performance of the model trained in the next iteration. We need to take account for (1) uncertainty estimated from the model trained in the previous iteration, i.e., the distance from the existing training data set, and (2) similarity among the query images. The large batch acquisition with diverse images far from the existing data set enables higher efficiency in active learning. In this study, we investigated the performance and efficiency of several Bayesian active learning approaches specifically for segmentation of liver and spleen in a realistic simulation study using 251 fully annotated abdominal MR data set.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Bayesian U-net / Bayesian active learning
Paper # MI2020-60
Date of Issue 2021-03-08 (MI)

Conference Information
Committee MI
Conference Date 2021/3/15(3days)
Place (in Japanese) (See Japanese page)
Place (in English) Online
Topics (in Japanese) (See Japanese page)
Topics (in English) Medical Imaging
Chair Yoshiki Kawata(Tokushima Univ.)
Vice Chair Takayuki Kitasaka(Aichi Inst. of Tech.) / Hidekata Hontani(Nagoya Inst. of Tech.)
Secretary Takayuki Kitasaka(Yamaguchi Univ.) / Hidekata Hontani(Univ. of Hyogo)
Assistant Hotaka Takizawa(Tsukuba Univ.) / Yoshito Otake(NAIST)

Paper Information
Registration To Technical Committee on Medical Imaging
Language ENG
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Evaluation of Bayesian Active Learning for Segmentation of Liver and Spleen in Large Scale Abdominal MR Data Sets
Sub Title (in English)
Keyword(1) Bayesian U-net
Keyword(2) Bayesian active learning
1st Author's Name Bin Zhang
1st Author's Affiliation Nara Institute of Science and Technology(NAIST)
2nd Author's Name Yoshito Otake
2nd Author's Affiliation Nara Institute of Science and Technology(NAIST)
3rd Author's Name Mazen Soufi
3rd Author's Affiliation Nara Institute of Science and Technology(NAIST)
4th Author's Name Masatoshi Hori
4th Author's Affiliation Kobe University, Graduate School of Medicine(Kobe University)
5th Author's Name Noriyuki Tomiyama
5th Author's Affiliation Osaka University, Graduate School of Medicine(Osaka University)
6th Author's Name Yoshinobu Sato
6th Author's Affiliation Nara Institute of Science and Technology(NAIST)
Date 2021-03-15
Paper # MI2020-60
Volume (vol) vol.120
Number (no) MI-431
Page pp.pp.62-65(MI),
#Pages 4
Date of Issue 2021-03-08 (MI)