Driving assistance system and driving assistance method
AssigneePegatron Corporation
InventorsYu-Hung Tseng, Ping-Yao Wu, Chia-Wei Chen
Life of this patent
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Abstract
A driving assistance system and a driving assistance method are provided. The driving assistance system includes a plurality of image capturing devices, a congestion calculation module, and a determination module. The image capturing devices capture a plurality of regional images of a plurality of road sections of the target lane. The congestion calculation module calculates a plurality of congestion levels corresponding to the road sections according to the regional images. The determination module provides a lane changing message to the vehicle according to the congestion levels.
Claims11
A driving assistance system for navigating a vehicle comprising:
- a plurality of cameras, configured to capture a plurality of regional images of a plurality of road sections of a target lane, wherein the target lane is an exit lane of an expressway or a highway;
- a congestion calculation processor, configured to receive the regional images from the cameras and calculate a plurality of congestion levels corresponding to the road sections according to the regional images;
- and
- a determination processor, configured to receive the congestion levels from the congestion calculation processor and provide a lane changing message to the vehicle according to the congestion levels,
- wherein the congestion calculation processor comprises a plurality of calculators, coupled to the respective cameras,
- wherein each of the calculators generates a corresponding optical flow information according to a corresponding regional image among the regional images and calculates a corresponding congestion level according to the corresponding regional image and the corresponding optical flow information, and
- wherein each of the calculators determines the number of vehicles on a corresponding road section of the target lane according to a texture of the corresponding regional image, determines a traffic speed on the corresponding road section of the target lane according to the corresponding optical flow information, and calculates a congestion value of the corresponding congestion level according to complexity of the texture and an optical flux of the corresponding optical flow information.
A driving assistance method for navigating a vehicle and comprising:
- capturing a plurality of regional images of a plurality of road sections of a target lane by a plurality of cameras, wherein the target lane is an exit lane of an expressway or a highway;
- calculating a plurality of congestion levels corresponding to the road sections according to the regional images;
- and
- providing a lane changing message to the vehicle according to the congestion levels,
- wherein a congestion calculation processor comprises a plurality of calculators, wherein each of the calculators is coupled to a corresponding image capturing device among the cameras, and wherein the step of calculating the congestion levels corresponding to the road sections according to the regional images comprises:
- generating a corresponding optical flow information according to a corresponding regional image among the regional images by each of the calculators, and calculating a corresponding congestion level according to the corresponding regional image and the corresponding optical flow information, and
- wherein the step of calculating the corresponding congestion level according to the corresponding regional image and the corresponding optical flow information comprises:
- determining the number of vehicles on a corresponding road section of the target lane according to a texture of the corresponding regional image;
- determining a traffic speed on the corresponding road section of the target lane according to the corresponding optical flow information;
- and
- calculating a congestion value of the corresponding congestion level according to complexity of the texture and an optical flux of the corresponding optical flow information.
Dependencies are inferred from the claim text.