Presentation 2020-03-17
Object area extraction with biased training data set
Ryo Nakamura, Yoshiaki Ueda, Jun Fujiki, Masaru Tanaka,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) In order to extract an object region using machine learning, it is necessary to give a teacher label to each pixel. Providing a teacher label for each pixel is a very laborious task. In this paper, we propose a method to extract an area of an unidentified object without labeling every pixel by identifying the unidentified object with high precision. In this method, the training image set is not input as it is, but plural small patches are extracted from the training image set, and the discriminator is learned by using them as input. The learned discriminator extracts an object region by obtaining a discrimination ratio by using raster scan for an image to be extracted. At that time, though it is necessary to discriminate the non-discrimination object with high precision, by using the asymmetry of the training image set, the discrimination bias is utilized, and by discriminating the non-discrimination object with high precision, the region extraction of the discrimination object is carried out. And, visualization is carried out by making the identification ratio to be an image of αch.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) BTD / Object area extraction
Paper # PRMU2019-88
Date of Issue 2020-03-09 (PRMU)

Conference Information
Committee PRMU / IPSJ-CVIM
Conference Date 2020/3/16(2days)
Place (in Japanese) (See Japanese page)
Place (in English)
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Yoichi Sato(Univ. of Tokyo)
Vice Chair Toru Tamaki(Hiroshima Univ.) / Akisato Kimura(NTT)
Secretary Toru Tamaki(NTT) / Akisato Kimura(OMRON SINICX)
Assistant Yusuke Uchida(DeNA) / Takayoshi Yamashita(Chubu Univ.)

Paper Information
Registration To Technical Committee on Pattern Recognition and Media Understanding / Special Interest Group on Computer Vision and Image Media
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Object area extraction with biased training data set
Sub Title (in English)
Keyword(1) BTD
Keyword(2) Object area extraction
1st Author's Name Ryo Nakamura
1st Author's Affiliation Fukuoka University(Fukuoka Univ)
2nd Author's Name Yoshiaki Ueda
2nd Author's Affiliation Fukuoka University(Fukuoka Univ)
3rd Author's Name Jun Fujiki
3rd Author's Affiliation Fukuoka University(Fukuoka Univ)
4th Author's Name Masaru Tanaka
4th Author's Affiliation Fukuoka University(Fukuoka Univ)
Date 2020-03-17
Paper # PRMU2019-88
Volume (vol) vol.119
Number (no) PRMU-481
Page pp.pp.115-119(PRMU),
#Pages 5
Date of Issue 2020-03-09 (PRMU)