Spatial Parking Detection by Fusing Ultrasonic and Image Data
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Solution Overview
Problem
Current spatial parking place detection schemes using ultrasonic sensors have a limited parking space retrieval range and are prone to crosstalk due to ultrasonic waves of the same frequency from other vehicles, resulting in a low detection rate.
Innovation Solution
A method and device that combine ultrasonic data and image data to detect spatial parking places, where ultrasonic data is used to determine a first spatial parking place and image data is used to determine a second spatial parking place, which are then fused to improve detection accuracy and range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If ultrasonic sensor signals are used for spatial parking place detection, then the detection method is simple, but the detection range is limited and detection rate is low due to crosstalk
Solution Approach 1:
The patent combines ultrasonic sensor data with image data from cameras to detect spatial parking places. By merging the advantages of both sensing modalities, the system achieves both simplicity (from ultrasonic) and high detection accuracy (from image fusion), resolving the contradiction between simple detection method and low detection rate
Solution Approach 2:
The patent introduces image data as an intermediary to mediate the detection process. The image collection apparatus captures visual information that complements ultrasonic data, serving as a mediator that enhances detection capability without requiring complete redesign of the ultrasonic detection system
2Ease of operation
If ultrasonic sensor signals are used for spatial parking place detection, then the implementation is straightforward, but the detection range is limited
Solution Approach 1:
The patent merges ultrasonic sensor detection with image-based detection to expand the overall detection range. The image collection apparatus provides wide-area coverage while ultrasonic sensors provide precise distance measurement, together achieving both ease of operation and expanded detection range
3Device complexity
If ultrasonic waves are used for detection, then the system is simple, but crosstalk from other vehicles reduces reliability
Solution Approach 1:
The patent uses image data as an intermediary verification mechanism to reduce the impact of ultrasonic crosstalk. When image data confirms the presence of a parking place, it validates the ultrasonic detection result, thereby improving reliability without significantly increasing system complexity
Solution Approach 2:
The patent implements feedback through data fusion where image detection results provide verification feedback for ultrasonic detections. This cross-validation mechanism reduces false positives from crosstalk while maintaining system simplicity through integrated processing
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The method significantly improves the detection accuracy and rate of spatial parking places by expanding the detection range and mitigating the issue of ultrasonic crosstalk, allowing for more reliable autonomous parking and driving systems.
Implementation Method 1
acquiring, during a vehicle traveling process, ultrasonic data around a vehicle collected by an ultrasonic sensor on the vehicle
Data Source
AI summary
The present disclosure provides a spatial parking place detection method and device, a storage medium and a program product, which relate to the field of data processing and, in particular, to the fields of computer vision, autonomous parking and autonomous driving. A specific implementation lies in: acquiring ultrasonic data around a vehicle collected by an ultrasonic sensor on the vehicle, and image data around the vehicle collected by an image collection apparatus; determining a first spatial parking place around the vehicle according to the ultrasonic data, and determining a second spatial parking place around the vehicle according to the image data; fusing the first spatial parking place and the second spatial parking place that are located at an identical position to determine a spatial parking place at that position; and checking the availability of the detected spatial parking place, and determining available spatial parking places of the vehicle.