Nikon Disqualifies AI-Generated Video That Won Its Small World In Motion Microscopy Competition

Nikon has disqualified the winning entry of its Small World In Motion competition after determining the video was composed using generative AI, violating contest rules. The entry, submitted by Dr. Ning Xu of Tsinghua University, depicted cilia moving in the airway of a child with the respiratory condition PCD — but scientists, including former competition judges, flagged it on LinkedIn as appearing fabricated. Xu had acknowledged using AI but said he believed he had acted within the rules and cooperated with Nikon's investigation.

Nikon said the disqualification was "not a judgement of the entrant's professional reputation or scientific contributions" and announced it would review the rules and procedures of the 15-year-old annual contest going forward. Dr. Robert Hirst, a PCD diagnostics specialist at the University of Leicester and one of the first to raise concerns, said he "knew immediately that the video was fabricated," citing discrepancies in cell and cilia morphology inconsistent with PCD patients. The case has prompted broader debate about AI disclosure standards in scientific imaging competitions.