Vehicle Image Extraction Using Obstruction Distance
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Solution Overview
Problem
Existing image management devices capture images based on vehicle speed, leading to potential obstructions in the images, which can hinder the transmission of necessary information in obstruction-free situations, thereby increasing communication volume.
Innovation Solution
A data extraction device that extracts images for transmission only when the vehicle travels a predetermined extraction distance, determining and calculating an obstruction distance to identify and transmit images without obstructions, using an image analysis unit to determine objects for analysis and an extraction distance determining unit to set the next extraction distance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If images are captured at fixed time intervals or distances based on vehicle speed, then communication volume is reduced through selective transmission, but images may include obstructions that prevent transmission of necessary information
Solution Approach 1:
The patent performs preliminary analysis of captured images to calculate obstruction distances before determining whether to transmit images. By pre-calculating obstruction distances and comparing them against threshold values, the system identifies images captured in obstruction-free situations before transmission decisions are made, ensuring necessary information is not lost while maintaining reduced communication volume
Solution Approach 2:
The patent implements a feedback mechanism where obstruction distance calculations inform subsequent image selection decisions. The system continuously monitors obstruction distances from captured images, uses this information to determine which images meet transmission criteria, and adjusts transmission decisions based on real-time obstruction analysis, creating a closed-loop system that prevents information loss
2Loss of information
If all captured images are transmitted to ensure complete information, then information loss is prevented, but communication volume increases significantly
Solution Approach 1:
The patent extracts only the essential information needed for transmission by calculating obstruction distances and selecting only images captured in obstruction-free situations. Instead of transmitting all captured images, the system extracts and transmits only those images that meet specific criteria (obstruction distance greater than threshold), thereby preventing information loss while minimizing communication volume
Solution Approach 2:
The patent changes the transmission parameter from transmitting all images to transmitting only images with obstruction distances exceeding a predetermined threshold. By introducing the obstruction distance parameter as a selection criterion, the system efficiently filters images to transmit only those containing necessary information, achieving both information completeness and reduced communication volume
Data Source
AI summary
A data extraction device, which extracts an image for transmission from images obtained by capturing surroundings outside a vehicle with an imaging device mounted on the vehicle each time the vehicle travels an extraction distance, includes: processing circuitry configured to acquire an image obtained by capturing the surroundings outside the vehicle; determine, as an object to be analyzed, an image captured at a position advanced by the extraction distance from a position at which a previously extracted image has been captured, and calculate an obstruction distance which indicates an actual distance from an imaging start position of the image having been determined as the object to be analyzed to a position of an obstruction included in the determined image; output the calculated obstruction distance as a next extraction distance; and extract the image that has been determined as the object to be analyzed.