To meet the need for better 3D imaging that works during live surgery, researchers recently developed a new kind of surgical microscope called the Fourier light-field multiview stereoscope, known as FiLM-Scope.
FiLM-Scope simultaneously deploys 48 tiny cameras arranged in a grid, all focused through a single high-throughput lens. Each camera captures the surgical field from a slightly different angle, producing 48 high-resolution images (each 12.5 megapixels) of the same scene. The field of view is large — about 28 x 37 mm — with fine detail down to 22 μm. It can also stream video at up to 120 frames per second.
These multiple perspectives are processed by a specially designed algorithm that creates a detailed 3D map of the scene in real time. The algorithm is self-supervised, meaning it doesn’t need pre-existing data or models to work. It can reconstruct surface shapes with a precision of 11 μm over a depth range of 1 cm. Because each frame captures the full scene from many angles, users can digitally zoom or shift the view without moving the microscope — making surgery smoother and more efficient. (Image credit: Duke University)
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