Authors:
Zhuying Li, Yan Wang, Stefan Greuter, Florian Mueller
Fantastic Voyage is a 1966 science-fiction movie in which a crew enters a submarine that is then shrunk and injected into a physicist's bloodstream to facilitate the removal of a life-threatening blood clot. The film exemplifies the ever-present human desire to know more about the interior body. Among contemporary modern medical technologies, ingestible sensors—capsule-shaped digital devices that perform sensing and actuating functions [1]—are analogous to the movie's submarine. One common type of ingestible sensor in clinical uses is an imaging capsule, which contains a small video camera, an LED, a video transmitter, and a battery. After being swallowed, the…
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