Intelligent vehicle trajectory measurement method based on binocular stereo vision system
Intelligent vehicle trajectory measurement method based on binocular stereo vision system
- New search for: SONG XIAOWEI
- New search for: YANG LEI
- New search for: LI MENGLONG
- New search for: XIA JIANLEI
- New search for: LI SHAN
- New search for: CHANG YIPING
- New search for: SONG XIAOWEI
- New search for: YANG LEI
- New search for: LI MENGLONG
- New search for: XIA JIANLEI
- New search for: LI SHAN
- New search for: CHANG YIPING
The invention provides a method for intelligently measuring vehicle trajectory based on a binocular stereo vision system, including the following steps: inputting a dataset into an SSD (Single Shot Multibox Detector) neural network to train a license plate recognition model; calibrating the binocular stereo vision system, and recording videos of moving target vehicles; detecting the license plates in the video frames with the license plate recognition model; performing stereo matching on the license plates in the subsequent frames of the same camera and in the corresponding left-view and right-view video frames by a feature-based matching algorithm; reserving correct matching point pairs after filtering with a homography matrix; screening the reserved matching point pairs, and reserving the one closest to the license plate center as the position of the target vehicle in the current frame; performing stereo measurement on the screened and reserved matching point pairs to get the spatial position coordinates of the vehicle in the video frames; and generating the moving trajectory of the vehicle in time sequence. The present invention is easy to install and adjust, and can simultaneously measure multiple target vehicles in multiple directions and on multiple lanes.
Document information
Intelligent vehicle trajectory measurement method based on binocular stereo vision system
2024-02-13
Patent
Electronic Resource
English
| IPC: | G06T Bilddatenverarbeitung oder Bilddatenerzeugung allgemein , IMAGE DATA PROCESSING OR GENERATION, IN GENERAL / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung / G06N COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS , Rechnersysteme, basierend auf spezifischen Rechenmodellen / G06V / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS / H04N PICTORIAL COMMUNICATION, e.g. TELEVISION , Bildübertragung, z.B. Fernsehen |
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