Multi-Lens Camera Calibration Data Interpolation
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Solution Overview
Problem
Calibration data generated for a specific focus position of a multi-lens camera may not be appropriate for images captured at different focus positions, leading to inappropriate image processing when applied to general objects.
Innovation Solution
A data processing apparatus and method that performs interpolation to generate calibration data for a predetermined focus position using calibration data from multiple focus positions, obtained by capturing images of a known object with a multi-lens camera from two or more viewpoints, allowing for accurate image processing across varying focus positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If calibration data is generated for a specific focus position, then calibration accuracy for that focus position is improved, but applicability to images captured at different focus positions deteriorates
Solution Approach 1:
The patent performs calibration at multiple predetermined focus positions in advance, generating calibration data for each position. This preliminary action across multiple states enables subsequent interpolation to generate accurate calibration data for any intermediate focus position, resolving the contradiction between specialized accuracy and general applicability
Solution Approach 2:
The patent changes the focus position parameter during calibration, capturing images at multiple different focus positions. By collecting calibration data across a range of focus positions and using interpolation, the system adapts the calibration results to match the actual focus position of captured images, maintaining accuracy across varying conditions
2Ease of manufacture
If calibration is performed at a predetermined focus position, then calibration process simplicity is improved, but image processing accuracy for general objects deteriorates
Solution Approach 1:
The patent segments the calibration process into multiple discrete focus position measurements. Instead of attempting a single comprehensive calibration, it divides the task into capturing images at multiple predetermined focus positions, then combines these segmented results through interpolation to achieve high accuracy without excessive complexity
Solution Approach 2:
The patent introduces interpolation as an intermediary process between the discrete calibration measurements at predetermined focus positions and the continuous range of actual imaging conditions. This intermediary step generates appropriate calibration data for any given focus position based on the measured data from multiple predetermined positions
Data Source
AI summary
The present technology relates to a data processing apparatus, a data processing method, and a program that are capable of generating calibration data for performing appropriate image processing. The data processing apparatus performs interpolation to generate calibration data for a predetermined focus position by using calibration data for a plurality of focus positions. The calibration data for the plurality of focus positions is generated from a calibration image captured at the plurality of focus positions. The calibration image is obtained by capturing an image of a known object in the plurality of focus positions with a multi-lens camera that captures an image from two or more viewpoints. The present technology is applicable, for example, to a multi-lens camera that captures an image from two or more viewpoints.