How to Calibrate Your Event Camera


How to Calibrate Your Event Camera


“Camera calibration is an essential component of computer vision systems and has been thoroughly researched for decades. Typically, camera calibration methods extract corners from a known calibration pattern, detect the pattern and solve an optimization problem that optimizes for intrinsic and extrinsic parameters of the cameras. This approach is nowadays widely used for standard frame-based cameras. Unfortunately, this method cannot directly be used for event cameras.

Event cameras are asynchronous sensors that pose a paradigm shift in the way visual information is acquired. In contrast to standard cameras that capture frames at regular intervals, event cameras report per-pixel brightness changes as a stream of asynchronous events. Due to this property image-based corner detection does not apply to event data such that standard calibration frameworks cannot be used…”



June 2, 2021
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