Around View Image Calibration via Area Pattern Compensation

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Solution Overview

Problem

Current around view provision systems for vehicles lack accuracy in generating around view images due to calibration issues and overlapping image discrepancies, leading to potential image breaking or edge increase phenomena during vehicle operation, especially when cameras' positions change.

Innovation Solution

The system employs multiple cameras mounted on a vehicle, a display, and a processor that uses first and second area patterns to calibrate images by compensating parameters based on overlapping areas, generating an accurate around view image by calculating specific points and synthesizing images.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If multiple cameras are used to capture images for around view provision, then the coverage area is improved, but image accuracy deteriorates due to calibration issues and overlapping discrepancies

Engineering Contradiction:

Improvecoverage areaVSAvoidimage accuracy

Core Design Contradiction:

Area of stationary objectVSMeasurement precision

Solution Approach 1:

The patent replaces manual mechanical calibration methods with an automated image processing system that uses area patterns and parameter compensation algorithms to calibrate multiple camera images, eliminating the need for physical adjustment of camera positions and angles

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes image parameters (such as position, size, and shape parameters) through automated compensation based on detected area patterns in overlapping regions, adjusting the images to achieve accurate alignment without physical camera repositioning

Inventive Principle:

Principle #35Parameter changes

2Adaptability or versatility

If camera positions are adjusted to improve viewing angles, then the around view coverage is improved, but image breaking and edge increase phenomena occur due to calibration errors

Engineering Contradiction:

Improveviewing angleVSAvoidimage integrity

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The patent performs preliminary calibration of camera parameters before image synthesis by detecting area patterns in overlapping regions and compensating position, size, and shape parameters in advance, preventing image breaking and edge increase phenomena during image generation

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent replaces mechanical camera position adjustment with automated digital parameter compensation, using image processing algorithms to correct calibration errors and maintain image integrity across different viewing angles

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS10366512B2Around view provision apparatus and vehicle including the same

Publication Date: 2019.07.30 LG ELECTRONICS INC

AI summary

Disclosed herein are an around view provision apparatus and a vehicle including the same. The around view provision apparatus includes a plurality of cameras mounted on a vehicle, a display, and a processor configured to receive a plurality of images from the plurality of cameras, to check locations of the images using first area patterns in the plurality of images, to compensate a parameter in an image using second area patterns located in overlapping areas between the plurality of images, and to generate an around view image based on the compensated parameter. Accordingly, it is possible to provide an accurate around view image based on a calibrated image.