Full-automatic calibration method and apparatus oriented to structured light 3D vision system

    公开(公告)号:US12002241B2

    公开(公告)日:2024-06-04

    申请号:US17622604

    申请日:2019-12-27

    申请人: Wuyi University

    IPC分类号: G06T7/80

    CPC分类号: G06T7/85

    摘要: A full-automatic calibration method and apparatus oriented to a structured light 3D vision system are disclosed. For an erected 3D vision system, full-automatic calibration can be completed without moving the 3D vision system; and for an unfixed 3D vision system, full-automatic calibration can be completed without manual operation. By using the full-automatic calibration method oriented to the structured light 3D vision system, on one hand, non-professionals can easily complete calibration of structured light 3D imaging; and on the other hand, a problem of calibrating a large number of 3D cameras can also be solved.

    Arrangement and method for runtime measurement of a signal between two events

    公开(公告)号:US11953620B2

    公开(公告)日:2024-04-09

    申请号:US16960019

    申请日:2018-01-03

    发明人: Eltaher Amr

    摘要: Method for a runtime measurement of a signal between two events. A phase shift between the signal on the occurrence of a first event and the signal on the occurrence of a second event is determined, and to an arrangement for performing the method has the underlying object of providing a runtime measurement of a signal between a first event and a second event that can be carried out with a high accuracy, at a high speed, and with a low computational effort. A modulation signal is generated whose phase position is determined as a first signature for the occurrence of the signal in the first event. The phase position of the modulation signal is determined as a second signature for the occurrence of the signal in the second event; and in that the runtime is determined as a difference of the phase positions of the first and second signatures.

    Vehicle data analytics system for multi-layer control software architecture

    公开(公告)号:US11934258B1

    公开(公告)日:2024-03-19

    申请号:US18063262

    申请日:2022-12-08

    IPC分类号: G06F11/07 B60W50/02

    摘要: A data analytics system for a vehicle includes one or more controllers having a multi-layered control software architecture including two or more software layers and a health monitoring structure. The one or more controllers execute instructions to receive a fault, and in response to receiving the fault, generate, by the health monitoring structure, a plurality of unique triggers as the fault propagates throughout the multi-layered control software architecture. The controllers build a network including a plurality of propagation paths and identify one or more main propagation paths that are part of the network based on a data analysis of a mock big data set. The one or more controllers build a complete propagation pathway including two or more main propagation paths. In response to determining only one main propagation path, the controllers determine a root cause of the fault based on the only one main propagation path.