Image Generating System for Autonomous Driving Map Updates
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Solution Overview
Problem
The existing systems for generating high-precision maps for automatic driving vehicles face challenges in reducing communication traffic volume when transmitting images that include road features.
Innovation Solution
An image generating system that includes a server and an image generating device. The server generates area information based on past feature information and transmits it to the device, which uses this information to determine a cutout area from captured images and transmit only the partial images to the server.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If video (a plurality of images) is transmitted from the vehicle to the server to update map information, then the map information can be updated with road features, but the communication traffic volume increases significantly
Solution Approach 1:
The patent divides the entire image into multiple regions of interest (ROIs) based on the detected road feature location. Instead of transmitting the complete image, only the relevant ROI containing the road feature is extracted and transmitted to the server. This segmentation approach maintains map update accuracy while significantly reducing the volume of transmitted data.
Solution Approach 2:
The patent extracts only the essential portion (ROI) containing the road feature from the complete image. By identifying the specific location and boundaries of the road feature, the system extracts minimal necessary image data, removing unnecessary portions of the image that do not contribute to map information updates.
2Reliability
If the server requests the vehicle to transmit video when there is a change in map information, then the map can be updated, but the communication burden on the vehicle increases
Solution Approach 1:
The system segments the image transmission task by identifying and transmitting only the ROI containing changed road features. This segmentation maintains the reliability of map information updates while improving data transmission efficiency by reducing the amount of data that needs to be processed and transmitted.
Solution Approach 2:
The patent applies partial action by transmitting only the necessary portion (ROI) of the image rather than the complete image. This partial transmission approach provides sufficient information for map updates without the excessive data transmission that would result from sending full images.
3Reliability
If complete images are transmitted to ensure accurate road feature representation, then the map information is reliable, but the communication resources are wasted
Solution Approach 1:
The patent extracts only the ROI containing the road feature from the complete image for transmission. This extraction ensures that the essential road feature information is preserved for reliable map updates while eliminating the waste of communication resources that would occur with transmitting complete images.
Solution Approach 2:
The system applies local quality by focusing transmission resources on the specific ROI containing the road feature rather than uniformly transmitting the entire image. This localized approach ensures high-quality representation of the road feature while reducing overall communication resource consumption.
Data Source
AI summary
An image generating system has a server having a server processor configured to generate area information for determining an area in which a road feature is included in an image based on feature information representing the road feature acquired in the past, and transmit the area information using a server-communication device and an image generating device having a device processor configured to receive the area information using a device-communication device, determine a cutout area to be cut out from an image captured using an image capturing device based on the area information, and cut out the cutout area from the image to generate a partial image, wherein the device processor transmits the partial image to the server using the device-communication device.