Angle of view

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Technologies

Published in Henry H. Perritt, Eliot O. Sprague, Domesticating Drones, 2016

The focal length of a lens (about 55 mm is the standard for 35 mm film cameras) determines the angle of view of the image imparted to the sensor. Bigger sensors require greater focal-length lenses for the same angle of view obtainable on a smaller sensor. Longer focal length generally requires a bigger lens. Stock GoPros have 6 element aspherical glass lenses. Sony AX100s have 17 element glass lenses, with 24–120mm (35 mm equivalent) optical zoom capability, unlike the GoPro lenses.

Performance assessment of Kinect as a sensor for pothole imaging and metrology^*

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Published in International Journal of Pavement Engineering, 2018

Khurram Kamal, Senthan Mathavan, Tayyab Zafar, Imran Moazzam, Ahsan Ali, S. Usman Ahmad, Mujib Rahman

Kinect sensor is a low-cost sensor that costs around $100. It consists of an IR camera and an Red Green Blue (RGB) camera. The IR camera operates at 30 fps with image resolution of 640 × 480 pixels and with higher image resolution of 1280 × 1024 pixels at 10 fps. The angle of view is 58° horizontal, 45° vertical and 70° diagonal. The operating range is 0.8–3.5 m (Cruz et al. 2012). A tilt motor, an accelerometer, and microphones are built-in. Kinect provides two types of images, an RGB image and a depth image. The sensor has found its use in areas such as robotics and gaming (Rakprayoon et al.2011, Correa et al.2012, El-laithy et al.2012).

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Technologies

Performance assessment of Kinect as a sensor for pothole imaging and metrology*

Performance assessment of Kinect as a sensor for pothole imaging and metrology^*