Japan Geoscience Union Meeting 2019

Presentation information

[J] Poster

M (Multidisciplinary and Interdisciplinary) » M-IS Intersection

[M-IS19] Paleoclimatology and paleoceanography

Thu. May 30, 2019 3:30 PM - 5:00 PM Poster Hall (International Exhibition Hall8, Makuhari Messe)

convener:Yusuke Okazaki(Department of Earth and Planetary Sciences, Graduate School of Science, Kyushu University), Akira Oka(Atmosphere and Ocean Research Institute, The University of Tokyo), Michinobu Kuwae(Center for Marine Environmental Studies), Hitoshi Hasegawa(Faculty of Science and Technology, Kochi University)

[MIS19-P10] A system for automatic collection of specific microfossil species using a deep learning classification

*Takuya Itaki1, Yosuke Taira2, Naoki Kuwamori2, Toshinori Maebayashi3, Satoshi Takeshima4, Kenji Toya4 (1.Geological Survey of Japan, AIST, 2.NEC Corporation, 3.Microsupport Co.Ltd, 4.Mitani-Corporation)

Keywords:Microfossil, AI, Automatic classification

For geochemical analysis such as stable isotope ratio, radiocarbon age and minor elements for a single species of microfossils, a large number of their skeletons is required to pick up one by one with enormous time and effort by a person under a microscope. In this study, we have developed a device that automates these efforts. Even if experts are absent, microfossils are accurately classified their taxonomic species level using deep learning which is one of the learning methods of artificial intelligence, and they are picked up using a micromanipulator installed in the microscope with motorized X-Y stage. It is possible to collect a large number of particles with speed and accuracy that could not be achieved with human hands. This technology to accumulate only specific species of microfossils contributes not only to greatly reduce hand work of picking up, but also to be enable chemical analysis such as isotope ratios and minor elements for small microfossil species that hitherto difficult because the necessary measurement amount cannot be collected.In addition to microfossils, it can be applied to various particles, and it is also expected to be utilized in various fields such as medical, food, horticulture and materials.