en.Wedoany.com Reported - Japan's Mitsubishi Heavy Industries (MHI) has completed the in-orbit demonstration of its artificial intelligence-based object detection system, AIRIS, which identified ships from satellite imagery using a next-generation space-grade microprocessor unit.

AIRIS, which stands for "Artificial Intelligence Retraining In Space," combines an AI-equipped data processor with an Earth observation camera developed by the Tokyo University of Science. The system operates on a satellite, utilizing the SOISOC4 space-grade microprocessor unit jointly developed by MHI and the Japan Aerospace Exploration Agency (JAXA).

In December 2025, the AIRIS system was launched aboard JAXA's RAISE-4 small demonstration satellite as part of JAXA's Innovative Satellite Technology Demonstration Program. MHI stated that during the in-orbit demonstration, the system successfully detected ships from maritime images acquired while operating in space.

MHI noted that future work will focus on establishing a continuous improvement cycle by retraining the AI model on the ground using operational images and remotely updating the AI on the satellite. The demonstration plan also includes in-orbit testing of the SOISOC4 microprocessor unit itself.

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