31 January 2018 Optical system for object detection and delineation in space
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Object recognition and delineation is an important task in many environments, such as in crime scenes and operating rooms. Marking evidence or surgical tools and attracting the attention of the surrounding staff to the marked objects can affect people’s lives. We present an optical system comprising a camera, computer, and small laser projector that can detect and delineate objects in the environment. To prove the optical system’s concept, we show that it can operate in a hypothetical crime scene in which a pistol is present and automatically recognize and segment it by various computer-vision algorithms. Based on such segmentation, the laser projector illuminates the actual boundaries of the pistol and thus allows the persons in the scene to comfortably locate and measure the pistol without holding any intermediator device, such as an augmented reality handheld device, glasses, or screens. Using additional optical devices, such as diffraction grating and a cylinder lens, the pistol size can be estimated. The exact location of the pistol in space remains static, even after its removal. Our optical system can be fixed or dynamically moved, making it suitable for various applications that require marking of objects in space.
© 2018 Society of Photo-Optical Instrumentation Engineers (SPIE)
Amir Handelman, Amir Handelman, Shoam Shwartz, Shoam Shwartz, Liad Donitza, Liad Donitza, Loran Chaplanov, Loran Chaplanov, } "Optical system for object detection and delineation in space," Optical Engineering 57(1), 013108 (31 January 2018). https://doi.org/10.1117/1.OE.57.1.013108 . Submission: Received: 1 November 2017; Accepted: 9 January 2018
Received: 1 November 2017; Accepted: 9 January 2018; Published: 31 January 2018


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