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Paper Abstract and Keywords
Presentation 2023-02-22 13:45
A Note on Age Estimation of Chum Salmon based on Characteristics of Annulus
Mikiyasu Nishiyama, Genki Suzuki, Hiroyuki Shioya (Muroran IT)
Abstract (in Japanese) (See Japanese page) 
(in English) In Hokkaido, fishing salmon, squid, and other representative regional marine products could be better, and research and development in fisheries science utilizing information technology are required to sustain marine resources.
Furthermore, since forecasting the salmon catch and operation period is based upon the prediction for the amount of salmon migrations, a salmon-age estimation system with the high accuracy and efficient procedure has been required.
In this paper, we propose a method to determine the age of salmon by using false age rings and contour information of scale images to automate the age determination process using salmon scales. The method achieves stable age estimation by removing fake annual ring and contour regions that cause misjudgment when estimating age from resting zone images detected using a neural network. In experiments, the proposed method is applied to the detection results using the resting zone detection model, and its performance is evaluated to verify its effectiveness.
Keyword (in Japanese) (See Japanese page) 
(in English) salmon scale / age estimation / fake annual ring / neural network / fisheries science / / /  
Reference Info. ITE Tech. Rep., vol. 47, no. 6, ME2023-50, pp. 231-234, Feb. 2023.
Paper # ME2023-50 
Date of Issue 2023-02-14 (MMS, ME, AIT) 
ISSN Print edition: ISSN 1342-6893    Online edition: ISSN 2424-1970
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Conference Information
Conference Date 2023-02-21 - 2023-02-22 
Place (in Japanese) (See Japanese page) 
Place (in English) Hokkaido Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Image Processing, etc. 
Paper Information
Registration To ME 
Conference Code 2023-02-MMS-ME-AIT-IE-ITS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Note on Age Estimation of Chum Salmon based on Characteristics of Annulus 
Sub Title (in English)  
Keyword(1) salmon scale  
Keyword(2) age estimation  
Keyword(3) fake annual ring  
Keyword(4) neural network  
Keyword(5) fisheries science  
1st Author's Name Mikiyasu Nishiyama  
1st Author's Affiliation Muroran Institute of Technology (Muroran IT)
2nd Author's Name Genki Suzuki  
2nd Author's Affiliation Muroran Institute of Technology (Muroran IT)
3rd Author's Name Hiroyuki Shioya  
3rd Author's Affiliation Muroran Institute of Technology (Muroran IT)
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Speaker Author-1 
Date Time 2023-02-22 13:45:00 
Presentation Time 15 minutes 
Registration for ME 
Paper # MMS2023-30, ME2023-50, AIT2023-30 
Volume (vol) vol.47 
Number (no) no.6 
Page pp.231-234 
Date of Issue 2023-02-14 (MMS, ME, AIT) 

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