Abstract: Apparatus and methods are provided for distance calibration of an autonomous vehicle in a nominally short distance calibration environment. In particular, apparatus, methods and systems are provided using reflective materials to artificially augment a distance to a known target. In various implementations, reflective planes are disposed in pathway between the autonomous vehicle and target. Targets of known sizes can be used to calculated a distance from the autonomous vehicle to the target. Utilizing the known optical pathway, a calibration can be performed. With the aid of an Autonomous Vehicle Rotation Table, the autonomous vehicle is rotated such that a matrix of range-angle calibrations can be executed. Frequency spectra include LiDAR and radar, but any suitable bandwidth and/or detection protocol is not beyond the scope of the present disclosure.

Abstract: A sensor calibration evaluation system evaluates the quality of control point detection by translating a control object within a scene by a measured amount to generate a sequence of sensor views of the scene as the control object is translated by a known (measured) amount. The control points within each of the sequence of sensor views are detected with a control point detection algorithm. By detecting the control points and determining the detected movement of the control points, a correlation between the measured movement and detected movement can be determined and represent the quality of the control point detection given the set of detection conditions.