Abstract: Disclosed herein are system, method, and computer program product embodiments for automated autonomous vehicle pose validation. An embodiment operates by generating a range image from a point cloud solution comprising a pose estimate for an autonomous vehicle. The embodiment queries the range image for predicted ranges and predicted class labels corresponding to lidar beams projected into the range image. The embodiment generates a vector of features from the range image. The embodiment compares a plurality of values to the vector of features using a binary classifier.

Abstract: Disclosed herein are system and method embodiments to implement a validation of a vector map. The validation process may merge proposed and persisted high-definition mapping data, evaluate the high-definition mapping data with a set of customizable validation rules, return/persist validation results, and provide a means to acknowledge validation failures to minimize creation of problematic vector map content.

Abstract: Systems and methods are provided herein for improved short range object detection in LIDAR systems. An example method may include providing, by a biasing voltage source, a first biasing voltage to a photodetector of a LIDAR system at a first time corresponding to a light emission from an emitter of the LIDAR system. The example method may also include providing, by the biasing voltage source, a second biasing voltage to the photodetector at a second time subsequent to the first time. The example method may also include receiving, by a pole/zero cancellation subcircuit of the LIDAR system, a first output signal from the photodetector. The example method may also include removing, by the pole/zero cancellation subcircuit, an undershoot or overshoot from the first output signal. The example method may also include receiving, by a first gain subcircuit, a second output signal from the pole/zero cancellation subcircuit.

Abstract: Systems and methods are provided herein for light backscattering mitigation in LIDAR systems in some embodiments, an example method may include emitting, by an emitter, an outbound light signal. The example method may also include receiving, by a circulator disposed a first path of the outbound light signal and a second path of a return light signal, the outbound light signal from the emitter. The example method may also include outputting the outbound light signal. The example method may also include receiving, by the circulator, the return light signal from an environment, the return light signal comprising a first portion in a first polarization state and a second portion in a second polarization state. The example method may also include providing, by the circulator and on a third path, the first portion of the return light signal to a first element.

Abstract: Devices, systems, and methods are provided for reducing electrical and optical crosstalk in photodiodes. A photodiode may include a first layer with passive material, the passive material having no electric field. The photodiode may include a second layer with an absorbing material, the second layer above the first layer. The photodiode may include a diffused region with a buried p-n junction. The photodiode may include an active region with the buried p-n junction and having an electric field greater than zero. The photodiode may include a plateau structure based on etching through the second layer to the first layer, the etching performed at a distance of fifteen microns or less from the buried p-n junction.

Abstract: A GmAPD imager with an increased field of view includes at least one array of movable mirrors. Each movable mirror in the array switches between at least two positions (states). The movable mirrors receive light coming from a first direction when the mirror is in the first state and a second direction when the mirror is in the second state, thus increasing the field of view of the imager.