Imaging Device Subject Blur Correction Position Selection

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Solution Overview

Problem

Existing imaging devices often fail to accurately match the position for subject blur correction with the photographer's expectations, as the automatic correction position does not consistently align with the intended subject blur correction position.

Innovation Solution

An imaging device with a first and second detection unit, a display unit, and a control unit that displays candidate correction positions for subject blur based on detection results from both units and controls blur correction accordingly, allowing user selection of the correction position.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Extent of automation

If automatic subject blur correction is performed by the imaging device, then correction processing is executed, but the correction position does not match the photographer's expected position

Engineering Contradiction:

Improveautomatic correctionVSAvoidcorrection position accuracy

Core Design Contradiction:

Extent of automationVSMeasurement precision

Solution Approach 1:

The system displays multiple candidate correction positions detected by different methods on the display unit, allowing the photographer to select the correct position based on visual feedback. This feedback mechanism enables the photographer to identify which candidate matches their intended correction position, resolving the mismatch between automatic correction and photographer expectations.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The subject blur correction function is segmented into multiple candidate positions detected by different detection methods. Instead of providing a single automatic correction position, the system divides the correction targets into multiple candidates and presents them separately for selection, allowing the photographer to choose the most appropriate one.

Inventive Principle:

Principle #1Segmentation

2Adaptability or versatility

If multiple detection methods are used to identify correction positions, then more candidate positions are available, but the system complexity increases

Engineering Contradiction:

Improvedetection accuracyVSAvoidsystem complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The imaging device integrates multiple subject detection functions into a single system that serves the common purpose of identifying subject blur correction positions. Different detection methods (first and second detection units) are unified under the same control framework, allowing them to work together to provide multiple candidate positions without requiring separate independent systems.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS11838658B2Imaging device controlling correction of subject blur and control method for imaging device

Publication Date: 2023.12.05 CANON KK

AI summary

A camera control unit detects a subject using a first method, detects a subject using a second method different from the first method, displays a candidate for a correction position at which subject blur is corrected on an LCD based on each of a detection result obtained using the first method and a detection result obtained using the second method. The camera control unit and a lens control unit perform control of correcting the subject blur by driving a shift lens based on a correction position specified from among candidates.