External Environment Recognition With Synchronized Event Recording
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Solution Overview
Problem
Existing devices for recognizing the external environment of moving bodies, such as vehicles or robots, face challenges in verifying events due to discrepancies in processing and recording times between image and object data, leading to reduced reliability in event verification.
Innovation Solution
A device comprising an image processing unit, recognition processing unit, control unit, and recording devices that generate and synchronize time information for image and object data, allowing for precise recording and verification of events by designating specific image data to be recorded and using time information generated in sync with the control clock, reducing storage capacity requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If image data and object data are recorded separately by different processing units at different times, then the recording system can handle multiple data types, but the verification reliability between image data and object data deteriorates due to time synchronization issues
Solution Approach 1:
The patent merges the time information management function into a unified time information generation unit that provides synchronized timestamps to both the image processing unit and control unit. This ensures that image data and object data are time-synchronized despite being processed by different units, resolving the contradiction between versatile recording capability and verification reliability.
2Manufacturing precision
If all image data is recorded at high quality, then the image quality is maintained, but the storage capacity requirement increases
Solution Approach 1:
The patent applies local quality by recording high-quality image data only for regions containing objects of interest identified by the recognition processing unit, while other regions are recorded at lower quality or not recorded at all. This reduces overall storage requirements while maintaining image quality where it matters most for verification purposes.
Data Source
AI summary
In a device (1) for recognizing an external environment of a moving body, an image processing unit (10) generates image data indicating the external environment of the moving body. Using this image data, object data indicating an object around the moving body is generated. At an occurrence of a predetermined event, a control unit (30) records the generated object data in a recording device (35), whereas the image processing unit (10) records, in another recording device (15), the image data corresponding to the object data recorded in the recording device (35). The time information generation unit (40) adds the same time information to the recorded object data and image data.