Umitron Develops a Smart Fish Body Measurement System Called “UMITRON LENS®”

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By Milthon Lujan

Umitron K. K. (Location: Tokyo, Co-founder / CEO Ken Fujiwara, hereinafter Umitron) has developed a new service using AI and IoT technology – a smart fish body measurement system for aquaculture farmers called “UMITRON LENS®”. Using a portable camera paired with a mobile app, Lens automatically measures fish size underwater and all of the data is accessible in the cloud.


Being able to track fish during their growth cycles is an essential part of farm management.The current way of measuring fish growth involves sampling an adequate
number of fish frequently, and this is not only a labour intensive operation for farmers, but can also cause stress to the fish, sometimes resulting in injuries or even death. Lens utilizes small stereo cameras and artificial intelligence (AI) to automatically measure fish size in the cages and connects to the Internet to store data in the cloud. In this way, the process of checking fish growth is made much easier for farmers, helping them to reduce their workload, manage their operations more efficiently, and in turn increase their profits.

We have been developing this system in Oita prefectures in Japan since 2018, focusing on improving the user experience on actual farming sites, gathering useful data sets from measurement operations and increasing the accuracy of the size estimations. In using small size stereo cameras to enhance usability, we realised there was a problem of lower accuracy, but we have developed a unique algorithm to overcome this and achieve a high fish body measurement accuracy level.

Umitron aims to create a sustainable aquaculture model in the future by integrating the data of from all our services such as our smart auto feeder “UMITRON CELL”, the fish appetite analysis system “UMITRON FAI”, our high-resolution ocean data service “UMITRON PULSE” and this new smart fish body measurement system “UMITRON LENS”.
We will gradually roll out Lens to aquaculture farmers from next year onwards and are seeking new project partners who are interested in Lens and a future aquaculture integration model.

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If you are a fish farmer, fishery cooperative, local and central government or an international organization who is interested in our services and projects, please do not hesitate to contact us.


UMITRON is a Singapore and Japan based deeptech company whose aim is to solve worldwide food and environmental problems by empowering aquaculture through
technology. We build user-friendly data platforms for aquaculture by using IoT, satellite remote sensing, and artificial intelligence (AI). Our technology helps farmers improve farm efficiency, manage environmental risks, and in turn increase business revenues. Our final goal is to utilize computer models in combination with aquaculture to help the world sustainably and efficiently deliver protein in a human-friendly and nature-friendly way. Ultimately, we aim to “install Sustainable Aquaculture on Earth”.

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