Patent ID: 11967132
Assignee: APOLLO INTELLIGENT CONNECTIVITY (BEIJING) TECHNOLOGY CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 6:
7. An electronic device, comprising:
at least one processor; and
a memory communicatively connected with the at least one processor,
wherein the memory stores thereon instructions executable by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to:
obtain a video stream comprising a lane marking;
extract a key image frame from the video stream at a predetermined interval of frames, with an image frame between adjacent key image frames being a non-key image frame;
detect, for the key image frame, a lane marking according to a feature map of the key image frame; and
detect, for the non-key image frame, a lane marking according to the non-key image frame and a feature map of a previous key image frame of the non-key image frame;
wherein the at least one processor is further enabled to:
feed the key image frame into a preset lane marking detecting model to obtain the feature map of the key image frame, and detect a lane marking according to the feature map of the key image frame,
wherein the lane marking detecting model is generated through a knowledge distillation process based on a lane marking sample image in a daytime scenario and a lane marking sample image in a nighttime scenario,
wherein the at least one processor is further enabled to:
feed the lane marking sample image in a daytime scenario and the lane marking sample image in a nighttime scenario into a residual network model and a lightweight network model for a knowledge distillation process, respectively, to obtain a first lane marking recognition result outputted by the residual network model, and a second lane marking recognition result outputted by the lightweight network model; and
iterate over the lightweight network model to obtain the lane marking detecting model based on the first lane marking recognition result and the second lane marking recognition result.