Vehicle Imaging Control Device Distance Measurement Correction

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Solution Overview

Problem

Existing imaging systems for vehicles struggle with accurate distance measurement, particularly in areas where camera views overlap, and fail to improve distance measurement accuracy in these regions.

Innovation Solution

An imaging control device and method that includes a detection unit to measure distances and a correction unit to correct detected distances based on overlap between multiple detection ranges from stereo camera systems, utilizing a set of cameras with overlapping views to enhance accuracy.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If multiple cameras are attached to monitor the entire periphery of the vehicle, then the monitoring coverage is improved, but the distance measurement accuracy in overlapping areas deteriorates

Engineering Contradiction:
Improvemonitoring coverageVSAvoiddistance measurement accuracy
Core Design Contradiction:
Area of stationary objectVSMeasurement precision

Solution Approach 1:

The system uses detection results from multiple cameras as feedback to correct and refine distance measurements. By comparing and cross-referencing measurements from overlapping camera views, the system continuously improves measurement accuracy through iterative correction processes.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent merges detection results from multiple camera systems into a unified measurement framework. By combining the observation data from multiple cameras and integrating their measurement results, the system achieves both comprehensive coverage and improved accuracy through consensus-based correction.

Inventive Principle:
Principle #5Merging (Combining)

2Adaptability or versatility

If stereo camera systems are used to measure distance in overlapping areas, then distance measurement capability is improved, but measurement accuracy in those areas deteriorates

Engineering Contradiction:
Improvedistance measurement capabilityVSAvoiddistance measurement accuracy
Core Design Contradiction:
Adaptability or versatilityVSMeasurement precision

Solution Approach 1:

The system employs feedback mechanisms where detection results from stereo camera pairs are used to correct each other's measurements. The overlap regions serve as feedback zones where measurement discrepancies are identified and corrected through comparative analysis of multiple observation points.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent applies parameter changes by adjusting measurement parameters based on the spatial relationship between cameras and observed objects. By modifying measurement calculations according to the specific geometric configuration and overlap characteristics, the system optimizes accuracy for different measurement scenarios.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If cameras are mounted in four directions to monitor the entire periphery, then the monitoring completeness is improved, but the distance measurement reliability in non-overlapping areas deteriorates

Engineering Contradiction:
Improvemonitoring completenessVSAvoiddistance measurement reliability
Core Design Contradiction:
ReliabilityVSMeasurement precision

Solution Approach 1:

The system segments the surrounding environment into multiple detection zones corresponding to different camera directions. By processing and correcting measurements within each segmented region using local overlap information, the system maintains reliability across all directional coverage areas.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces intermediary correction mechanisms that mediate between the completeness of four-directional monitoring and the reliability of individual measurements. These intermediary correction processes adjust measurements based on spatial relationships and overlap patterns, ensuring reliability throughout the complete monitoring perimeter.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS11158076B2Imaging control device and method, and vehicle
Publication Date: 2021.10.26 SONY GROUP CORP
  • US11158076B2 patent drawing
  • US11158076B2 patent drawing
  • US11158076B2 patent drawing

AI summary

The present technology relates to an imaging control device and method, and a vehicle that enable improvement of distance measurement accuracy. A distance of an observation point in a detection range is detected by a detection unit. The detected distance of the observation point is corrected by a correction unit on the basis of overlap of observation points in a plurality of detection ranges corresponding to a plurality of the detection units. For example, overlap between the observation point detected in the detection range on a side surface of the vehicle and the observation point detected in the detection range in front of the vehicle is detected, and the detected distance is corrected on the basis of the detected overlap of the observation points. The present technology can be applied to driving assistance of a vehicle.