Traffic sign position calculation method and system based on image key point detection

The invention relates to a traffic sign position calculation method and system based on image key point detection, and the method comprises the following steps: collecting a traffic sign in an image, and carrying out the inverse perspective calculation of the collected image, and obtaining an invers...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: ZHANG XIAOMING, ZHOU SHENZHANG, YAN JINGQI, HUANG QIANHUA
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention relates to a traffic sign position calculation method and system based on image key point detection, and the method comprises the following steps: collecting a traffic sign in an image, and carrying out the inverse perspective calculation of the collected image, and obtaining an inverse perspective transformation matrix; detecting a traffic sign grounding point through a key point detection algorithm; when the vehicle shakes, the pitch angle needs to be dynamically calculated, so that the inverse perspective transformation matrix is dynamically adjusted to obtain a dynamic inverse perspective transformation matrix; the real distance between the traffic sign and the vehicle is calculated according to the traffic sign grounding point and the dynamic inverse perspective transformation matrix, and accurate GPS information of the traffic sign is calculated according to the real distance between the traffic sign and the vehicle and the GPS of the vehicle. According to the method, the grounding points