Autonomous Vehicle Trajectory Planning via Static Image Extraction

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Solution Overview

Problem

Current unmanned vehicle trajectory determination methods rely on extensive data processing, which is inefficient and prone to over-fitting due to the inclusion of dynamic objects, leading to suboptimal processing efficiency and accuracy.

Innovation Solution

The method involves acquiring a vehicle environment image, extracting a static environment image using image recognition technology, and using this static image as input for a trajectory planning model to plan the vehicle's trajectory, thereby avoiding over-fitting and reducing data requirements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If extensive data processing is used for trajectory determination, then comprehensive environment information is obtained, but processing efficiency decreases and over-fitting occurs due to dynamic objects

Engineering Contradiction:
Improvetrajectory determination accuracyVSAvoidprocessing efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent extracts only the static environment images from the complete vehicle environment images, separating the useful static background information from the dynamic objects that cause over-fitting. This extraction process removes distracting dynamic elements while preserving the essential static environmental context needed for accurate trajectory planning, thereby improving both accuracy and processing efficiency.

Inventive Principle:
Principle #2Taking out (Extraction)

2Adaptability or versatility

If complete vehicle environment images are used for trajectory planning, then comprehensive environmental context is provided, but data volume increases leading to suboptimal processing efficiency

Engineering Contradiction:
Improveenvironmental context coverageVSAvoidprocessing time
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The system extracts only the static environment portions from complete vehicle environment images, removing dynamic objects that consume processing resources. This extraction maintains comprehensive environmental context for trajectory planning while significantly reducing the data volume that requires processing, thereby decreasing processing time without sacrificing adaptability.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent segments the vehicle environment image into static environment images and dynamic object regions, processing only the static portion for trajectory planning. This segmentation separates the permanent environmental structure from transient objects, allowing efficient processing of essential spatial information while ignoring time-varying elements that would increase processing time.

Inventive Principle:
Principle #1Segmentation

3Adaptability or versatility

If dynamic objects are included in trajectory determination data, then complete environment is captured, but over-fitting occurs reducing determination accuracy

Engineering Contradiction:
Improveenvironment completenessVSAvoidtrajectory determination accuracy
Core Design Contradiction:
Adaptability or versatilityVSMeasurement precision

Solution Approach 1:

The patent explicitly extracts and removes dynamic objects from the vehicle environment images, keeping only static environment images for trajectory determination. This extraction eliminates the source of over-fitting while preserving the complete static environmental context, thereby improving trajectory determination accuracy without sacrificing environmental completeness.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The system segments environment images into static and dynamic components, using only the static segment for trajectory planning. This segmentation strategy captures the complete environmental structure while excluding dynamic objects that cause over-fitting, thus resolving the contradiction between environment completeness and determination accuracy.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS11215996B2Method and device for controlling vehicle, device, and storage medium
Publication Date: 2022.01.04 APOLLO INTELLIGENT DRIVING (BEIJING) TECHNOLOGY CO LTD
  • US11215996B2 patent drawing
  • US11215996B2 patent drawing
  • US11215996B2 patent drawing

AI summary

The present disclosure provides a method and a device for controlling a vehicle, a device and a storage medium, and relates to the field of unmanned vehicle technologies. The method includes: acquiring a vehicle environment image by an image acquirer during traveling of the vehicle; extracting a static environment image included in the vehicle environment image; obtaining a planned vehicle traveling trajectory by taking the static environment image as an input of a trajectory planning model; and controlling the vehicle to travel according to the planned vehicle traveling trajectory.