Dual Fisheye Lens Alignment Feedback for Positional Displacement

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Solution Overview

Problem

Existing digital cameras with dual optical systems face challenges in determining whether positional displacement between images captured by the two optical systems can be reduced through user adjustments, as existing techniques only consider inherent system differences and do not provide a clear method for user intervention.

Innovation Solution

The imaging apparatus includes an image sensor and a processor that analyze images from a dual-lens circular fish-eye lens unit to acquire inclination information, allowing the system to notify users about the lens unit's inclination relative to the image sensor, enabling adjustments to reduce positional displacement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If existing techniques are used to determine positional displacement, then inherent system differences are considered, but users cannot easily grasp whether positional displacement can be reduced by adjustment

Engineering Contradiction:

Improveinformation about adjustability of positional displacementVSAvoiduser ability to assess and perform adjustment

Core Design Contradiction:

Loss of informationVSEase of operation

Solution Approach 1:

The system calculates positional displacement between images captured by two optical systems and provides feedback information to the user. This feedback mechanism enables users to understand the current displacement state and whether adjustment is necessary, directly addressing the information loss problem while guiding user operations.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The system performs preliminary calculation of positional displacement and provides assessment information before the user performs adjustment operations. This preliminary action allows users to grasp the current state and determine whether adjustment is needed, improving ease of operation by preventing unnecessary adjustment attempts.

Inventive Principle:

Principle #10Preliminary action

2Adaptability or versatility

If dual optical systems are used to capture images, then stereoscopic vision and omnidirectional imaging are enabled, but positional displacement between images occurs

Engineering Contradiction:

Improvecapability for stereoscopic vision and omnidirectional imagingVSAvoidalignment precision of dual optical systems

Core Design Contradiction:

Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The system automatically calculates and assesses positional displacement between images from two optical systems without requiring manual measurement or complex adjustment procedures. This self-service approach maintains the versatility of dual optical systems while simplifying the precision alignment task for users.

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS12513278B2Imaging apparatus, control method of imaging apparatus, and non-transitory computer readable medium

Publication Date: 2025.12.30 CANON KK

AI summary

An imaging apparatus according to the present invention includes an image sensor, a processor, and a memory storing a program which, when executed by the processor, causes the imaging apparatus to acquire inclination information that is information of inclination of a dual-lens circular fish-eye lens unit with respect to the image sensor by analyzing a third image including a first circular fish-eye image area and a second circular fish-eye image area formed on the image sensor via two circular fish-eye lenses in the dual-lens circular fish-eye lens unit in a case where the dual-lens circular fish-eye lens unit is mounted to the imaging apparatus, and perform control to notify the inclination of the dual-lens circular fish-eye lens unit with respect to the image sensor based on the acquired inclination information.