Gesture-Controlled Display Scaling via Eye-Loop Detection

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Solution Overview

Problem

Existing display and image forming technologies face challenges in providing intuitive and infection-prevention compliant methods for enlarging or reducing displayed images, with existing techniques either requiring contact operations or being difficult to intuitively perceive.

Innovation Solution

A display apparatus comprising a detection device and a control device that detects user gestures, specifically a loop shape and eye position, to calculate relative sizes and proportionally adjust the displayed image size, allowing for intuitive non-contact enlargement or reduction of images.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If contact operation is used to enlarge or reduce displayed image, then operation precision is improved, but risk of infection increases

Engineering Contradiction:

Improveoperation precisionVSAvoidinfection risk

Core Design Contradiction:

Measurement precisionVSObject-affected harmful factors

Solution Approach 1:

The patent replaces the mechanical contact operation system with an optical detection system. The gesture detector uses imaging to detect hand gestures and eye positions non-contactly, substituting physical touch with optical field-based detection. This resolves the contradiction by eliminating infection risk while maintaining operation precision through sophisticated image processing and gesture recognition algorithms.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces an intermediary medium (imaging field/light) between the user and the display system. Instead of direct contact, the user's gestures and eye movements are captured through imaging, which acts as an intermediary that transmits operational intent without physical contact. This intermediary mechanism eliminates infection risk while preserving precise control capability.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Object-affected harmful factors

If non-contact gesture detection is used, then infection risk is reduced, but ease of operation deteriorates

Engineering Contradiction:

Improveinfection riskVSAvoidease of operation

Core Design Contradiction:

Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The system performs self-service by automatically detecting and interpreting user intent through gesture and eye position analysis. The control device autonomously determines enlargement or reduction operations based on detected gestures, eliminating the need for users to learn complex non-contact control schemes. This makes the system as easy to operate as natural hand movements while maintaining infection prevention.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The system implements feedback by continuously monitoring gesture detector output and adjusting display magnification in real-time based on detected gestures and eye positions. This immediate feedback loop makes the non-contact operation intuitive and easy to control, resolving the contradiction between infection prevention and operational ease.

Inventive Principle:

Principle #23Feedback

3Measurement precision

If complex gesture recognition is used, then measurement precision is improved, but device complexity increases

Engineering Contradiction:

Improvegesture detection precisionVSAvoiddevice complexity

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The gesture detector and control device serve multiple functions: detecting hand gestures, tracking eye positions, calculating relative positions, and determining operational intent. By consolidating these functions into integrated components, the system achieves high measurement precision without proportionally increasing device complexity. The same imaging system performs multiple detection tasks simultaneously.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent merges gesture detection and eye position tracking into a unified detection and control system. The gesture detector and control device work as an integrated unit, combining multiple detection functions and processing algorithms into a cohesive system. This merging approach achieves sophisticated measurement precision while managing device complexity through functional integration.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS11778109B2Display apparatus that causes display device to enlarge or reduce image according to user gesture detection result from detector, and image forming apparatus

Publication Date: 2023.10.03 KYOCERA DOCUMENT SOLUTIONS INC

AI summary

A display apparatus includes a display device, a detection device, and a control device that acts as a controller. The controller displays a predetermined image on the display device, calculates, upon detecting a loop and a user's eye inside the loop through the detection device, a relative size of the user's eye with respect to the loop, as a reference size, causes the display device, upon detecting through the detection device that the relative size has changed to a size larger than the reference size, to enlarge the predetermined image, in proportion to a difference between the relative size and the reference size, and causes the display device, upon detecting through the detection device that the relative size has changed to a size smaller than the reference size, to reduce the predetermined image, in proportion to a difference between the relative size and the reference size.