Researchers have developed a mobile app that can find a hidden camera (real sound)

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Researchers at Singapore National University and South Korea's Josei University have devised an app that detects hidden cameras using the TOF (TIME OF FLIGHT) sensor mounted on a smartphone.The app boasts a higher accuracy than CC308+and K18, a camera detector, as well as the naked eye.[Image] What is "LAPD"?In recent years explaining the system, hidden cameras have been found in hotels and Airbnb rooms.The smaller the size of the camera, and it is difficult for non -experts to find them with the naked eye.In response to this problem, researchers have developed the "LASER Assisted Photography Detection" detection application using the TOF sensor.The paper they publish explained the mechanism of the app as follows."In the process of recognizing the camera, the TOF sensor radiates the pulse laser and receives the reflected light from the surrounding objects such as a plastic bottle. Specifically, the hidden camera embedded in the object is a lens sensor.The effect called recursion reflexes reflects the pulse laser at a higher strength than the surroundings. This occurs when almost all optical energy that collides with the object is reflected directly into the light source.With a high -intensity reflection from the camera, when a specific area of the TOF sensor is "saturated", it is displayed as a black pixel. LAPD automatically identifies the camera and its position by processing this saturated area.Displayed on the smartphone screen (partially excerpt).Researchers say that this app will be open source, and eventually anyone will be able to use a smartphone with a TOF sensor.As the voyeur of the voyeur is becoming more sophisticated, I hope this app will help prevent voyeurism. Singapore National University/Utsuyo University Paper about "LAPD" https: // DL.ACM.Org/DOI/PDF/10.1145/3485730.3485941

Horiguchi Satochi