Imaging Support Control for Backlash-Induced Image Misregistration

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Solution Overview

Problem

Imaging systems face misregistration issues when the revolution direction of an imaging apparatus is reversed due to mechanical displacement caused by backlash in the revolution mechanism, leading to inaccuracies in captured images.

Innovation Solution

An imaging support device that acquires reversal information and uses a shake correction portion to adjust the image position, correcting for misregistration by calculating and applying a correction amount based on the focal length and sensitivity of the imaging apparatus, employing both mechanical and electronic shake correction mechanisms.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the revolution mechanism reverses the revolution direction of the imaging apparatus, then the imaging apparatus can capture images from different directions, but mechanical displacement caused by backlash leads to misregistration of the captured image

Engineering Contradiction:
Improverevolution direction reversibilityVSAvoidimage position accuracy
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The patent replaces the mechanical revolution mechanism with an electronic image processing system. Instead of physically rotating the imaging apparatus to change directions, the system captures images from fixed positions and uses electronic image synthesis to create the effect of revolution. This eliminates mechanical backlash and displacement errors while maintaining the ability to capture images from different directional perspectives.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent creates a virtual copy of the revolution effect through image processing. Rather than physically moving the imaging apparatus through revolution, the system captures multiple images from stationary positions and synthesizes them to produce images that appear as if captured from revolutioned positions. This copying approach maintains directional versatility without the mechanical errors of physical revolution.

Inventive Principle:
Principle #26Copying

2Manufacturing precision

If the shake correction portion adjusts the image position to correct misregistration, then image accuracy is improved, but the device complexity increases due to additional correction mechanisms

Engineering Contradiction:
Improveimage position accuracyVSAvoidcorrection mechanism complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent replaces complex mechanical shake correction mechanisms with electronic image processing. Instead of using physical actuators and optical elements to adjust image position, the system uses digital signal processing to correct misregistration. This substitution maintains high image position accuracy while significantly reducing device complexity by eliminating mechanical correction components.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces an electronic image processing intermediary between image capture and display. This software-based intermediary performs misregistration correction through algorithmic processing rather than mechanical adjustment. The intermediary layer handles position accuracy corrections without requiring complex physical correction mechanisms, thereby reducing overall device complexity.

Inventive Principle:
Principle #24Intermediary (Mediator)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Effectively resolves misregistration issues by accurately adjusting image positions, improving image quality and accuracy, especially when the focal length is greater than or equal to a reference value, and displaying the required correction amount for user adjustment.

Implementation Method 1

the revolution mechanism causes misregistration of the captured image due to movement, in accordance with the reversal of the revolution direction about the one axis as the central axis, of the other axis along the one axis

Methodology Applied
Scientific EffectBacklash: Backlash

Data Source

PatentUS11917297B2Imaging support device, imaging apparatus, imaging system, imaging support system, imaging support method, and program
Publication Date: 2024.02.27 FUJIFILM CORP
  • US11917297B2 patent drawing
  • US11917297B2 patent drawing
  • US11917297B2 patent drawing

AI summary

Provided is an imaging support device including an acquisition portion that acquires reversal information indicating that a revolution direction of an imaging apparatus that is caused to revolve about one axis out of a first axis and a second axis intersecting with the first axis as a central axis by a revolution mechanism enabling the imaging apparatus to revolve about each of the first axis and the second axis as the central axis is reversed, and a control portion that, in a case where the reversal information is acquired by the acquisition portion, performs a control of operating an adjustment portion capable of adjusting a position of a captured image obtained by imaging performed by the imaging apparatus.