Microscopy Contest Winner Faces Backlash Over Alleged AI Use in Winning Video

A controversy has erupted within the scientific community following accusations that the winner of the annual Nikon Small World in Motion contest used artificial intelligence to alter his submission. Dr. Ning Xu, a researcher at Tsinghua University, has faced criticism after his winning video, which depicted hair-like structures called cilia moving in the airways of a child with primary ciliary dyskinesia (PCD), was scrutinized for its authenticity.

Questions about the video's integrity emerged shortly after Nikon announced the winners in September. Scientists pointed to the "unnatural" movement of the cilia, which were presented in a bright green hue, and raised concerns about the structures' depicted size. Ian Donovan, a doctoral student at UT Southwestern Medical Center in Texas, noted that one version of the film appeared to display a Google SynthID watermark, an indicator that content was generated or modified by AI. Edward Phelps, an associate professor at the University of Florida, observed that some cilia seemed to materialize and disappear.

Dr. Xu has denied that AI was used to create the core scientific footage, stating that the experimental movie, the cilia, and their motion were not generated by AI. However, he acknowledged employing AI in the post-processing stage to color the black-and-white data. "AI was applied afterwards to the reconstructed grayscale data to distinguish and colour structures with similar morphology," Dr. Xu explained online. He differentiated between using an image for scientific claims and using visualization to highlight the beauty of scientific data, emphasizing the importance of clarity regarding each purpose.

Nikon has launched an investigation into the matter, stating it is "carefully re-reviewing the information" provided by Dr. Xu. In a LinkedIn post, the company noted that Dr. Xu is cooperating and has supplied technical documentation detailing the microscopy equipment, imaging methods, and processing techniques used for the source video. The competition, now in its 16th year, prohibits AI-generated videos but permits AI use during specific processing stages. Nikon stated that "at this time, we don't see that any rules were violated."

Coloring scientific images and videos to enhance visibility is a common practice. The judges' task now involves discerning whether AI was used to emphasize existing details or to create elements that were not originally present. Dr. Patrick Hickey, a past participant in the Nikon Small World contest, highlighted the significance of the award beyond its $3,000 prize, describing it as an opportunity for scientists to share their work with the public. He noted the fusion of science and art in scientific imagery. Dr. Hickey also commented that any unfair alteration of a winning video through AI would be inequitable to other contestants, given the contest's rules against generative AI for content creation.

Dr. Xu's entry was titled "Rendition of abnormal beating of airway cilia from a child with Primary Ciliary Dyskinesia (PCD), a genetic disorder affecting respiratory function. AI-assisted in post-processing." Tsinghua University has been contacted for comment, and attempts have been made to reach Dr. Xu.