US Patent 10996338 Systems and methods for detection by autonomous vehicles

According to aspects of the disclosed subject matter, an active non-visible reflective system can include one or more retroreflective sections coupled to one or more predetermined locations on an object designated for active non-visible reflection. The one or more retroreflective sections can be configured to actively reflect at least a portion of a predetermined frequency of incoming radiation back to a source of the incoming radiation, the incoming radiation being non-visible, wherein the one or more predetermined locations are illuminated. Additionally, the one or more retroreflective sections can be further configured to enable a perception system to determine that one or more retroreflectors are detected in response to the illumination, and enable processing circuitry communicably coupled to the perception system to detect the illuminated object defined by the one or more detected retroreflective sections.