Time-of-Flight Camera
GdhdhdRange imaging camera system
Wide-Angle Lens
Range Imaging
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A time-of-flight camera (ToF camera) is a range imaging camera system that employs time-of-flight techniques to resolve distance between the camera and the subject for each point of the image, by measuring the round trip time of an artificial light signal provided by a laser or an LED. Laser-based time-of-flight cameras are part of a broader class of scannerless LIDAR, in which the entire scene is captured with each laser pulse, as opposed to point-by-point with a laser beam such as in scanning LIDAR systems. Time-of-flight camera products for civil applications began to emerge around 2000, as the semiconductor processes allowed the production of components fast enough for such devices. The systems cover ranges of a few centimeters up to several kilometers. The distance resolution is about 1 cm. The spatial resolution of time-of-flight cameras is generally low compared to standard 2D video cameras, with most commercially available devices at 320 × 240 pixels or less as of 2011. Compared to other 3D laser scanning methods for capturing 3D images, TOF cameras operate more quickly by providing up to 160 operations per second.
TOF-camera
PMD Sensor
Photonic Mixer Device
PMD Device
Time of flight camera
ToF camera
PMD camera
PMD principle
Time of flight ranging
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