公开(公告)号：US20230186486A1

公开(公告)日：2023-06-15

申请号：US17995752

申请日：2020-10-30

Applicant: BEIJING BAIDU NETCOM SCIENCE TECHNOLOGY CO., LTD.

Inventor： Wei Zhang ,  Xiao Tan ,  Hao Sun ,  Shilei Wen ,  Hongwu Zhang ,  Errui Ding

IPC: G06T7/20 ,  G06V10/25 ,  G06V10/44 ,  G06V10/74 ,  G06V10/762 ,  G06V20/40 ,  G06T9/00

CPC classification number: G06T7/20 ,  G06V10/25 ,  G06V10/44 ,  G06V10/761 ,  G06V10/762 ,  G06V20/46 ,  G06T9/00 ,  G06V2201/08 ,  G06T2207/30241 ,  G06T2207/30252

Abstract: A method for tracking vehicles includes: extracting a target image at a current moment from a video stream obtained during traveling of vehicles; performing instance segmentation on the target image to obtain detection boxes corresponding to individual vehicles in the target image; extracting, from the detection box for each vehicle, a set of pixel points corresponding to each vehicle; processing image features of each pixel point in the set of pixel points corresponding to each vehicle to determine features of each vehicle in the target image; and determining, according to the features of each vehicle in the target image and the degree of matching between the features of each vehicle in past images, movement trajectory of each vehicle in the target image, wherein the past images are n images adjacent to and before the target image in the video stream, and n is a positive integer.