Patent ID: 11887473
Assignee: BEIJING BAIDU NETCOM SCIENCE TECHNOLOGY CO., LTD.
Field: Control (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A road congestion detection method realized by a computer, comprising:
obtaining K images taken by L cameras corresponding to a first road at a same target time point, the first road comprising M road sections, each road section corresponding to at least one camera, M, L and K each being a positive integer, and L being greater than or equal to M;
performing target detection on each image to obtain area ratio information, the area ratio information representing a ratio of an area of vehicles on a lane of a target road section to an area of the lane of the target road section, the target road section being a road section corresponding to the image in the M road sections; and
determining a first congestion detection result of the first road at the target time point in accordance with K pieces of area ratio information corresponding to the M road sections;
wherein the first congestion detection result represents whether the first road is in a congested state, and the determining the first congestion detection result of the first road at the target time point in accordance with the K pieces of area ratio information corresponding to the M road sections comprises, in the case that the K pieces of area ratio information meet a predetermined condition, determining that the first road is in the congested state at the target time point,
wherein the predetermined condition comprises that there are N pieces of target area ratio information in the K pieces of area ratio information, the N pieces of target area ratio information being area ratio information corresponding to N consecutive road sections in the first road, the target area ratio information is area ratio information where the ratio is greater than a first predetermined threshold, where N is a positive integer smaller than or equal to M, and a ratio of N to M is greater than or equal to a second predetermined threshold.