HMD Image-Based Authentication Character String Generation

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Solution Overview

Problem

Existing methods for entering authentication information, such as character strings, are cumbersome and compromise confidentiality, especially when using head-mounted display apparatuses.

Innovation Solution

A head-mounted display apparatus with a display unit, capturing unit, storage unit, image detection unit, and input controller that captures and processes images to generate and input character strings without revealing sensitive information, allowing for simple and secure authentication.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If traditional authentication methods are used to enter character strings, then confidentiality is maintained, but operational burden increases

Engineering Contradiction:

Improveease of entering character stringVSAvoidtime required for authentication

Core Design Contradiction:

Ease of operationVSLoss of time

Solution Approach 1:

The patent uses image data captured by the imaging unit as a copy or representation of the object, which is then processed to generate the authentication character string. Instead of directly interacting with the object or using traditional input methods, the system captures an image and extracts features from it to produce the authentication code, significantly reducing the operational steps required.

Inventive Principle:

Principle #26Copying

Solution Approach 2:

The patent replaces manual mechanical input operations (typing passwords or pressing buttons) with an automated image processing system. The imaging unit captures images, the processing unit extracts features, and the system automatically generates the authentication character string, substituting the mechanical typing process with optical capture and computational processing.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Ease of operation

If manual character input is used for authentication, then confidentiality is maintained, but device complexity increases

Engineering Contradiction:

Improveease of authentication processVSAvoidcomplexity of authentication system

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The imaging unit serves multiple functions: it captures images for authentication purposes, and can potentially be used for other functions such as environment sensing or additional verification methods. The processing unit performs multiple tasks including image analysis, feature extraction, and character string generation, making the system multi-functional and reducing the need for separate dedicated components.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system uses the user's own hand or body image as the authentication medium, eliminating the need for external authentication tools or complex verification systems. The imaging unit captures the user's natural movements or gestures, and the processing unit automatically converts these into authentication codes, making the system self-contained and reducing overall complexity.

Inventive Principle:

Principle #25Self-service

3Productivity

If image-based authentication is implemented, then ease of operation improves, but measurement precision requirements increase

Engineering Contradiction:

Improveauthentication speedVSAvoidprecision of object detection

Core Design Contradiction:

ProductivityVSMeasurement precision

Solution Approach 1:

The processing unit extracts only the essential features from the captured image data that are necessary for authentication, rather than processing the entire image in detail. By isolating and extracting specific characteristic points or patterns from the image, the system achieves accurate authentication while reducing the computational burden and precision requirements for the entire image processing pipeline.

Inventive Principle:

Principle #2Taking out (Extraction)

Data Source

PatentUS11321440B2Head-mounted display apparatus, authentication system, and method for controlling head-mounted display apparatus

Publication Date: 2022.05.03 SEIKO EPSON CORP

AI summary

An head mounted display (HMD) including an image display unit, a camera, a storage unit configured to store information about an image of a object and character information in association with the image of the object, an image detection unit configured to detect an image of a object from a captured image of the camera, a character string generating unit configured to retrieve character information in association with the image of the object detected by the image detection unit from the storage unit, and to arrange a character or character string represented by the retrieved character information in detection order of the object to generate a character string, and an input controller configured to input the character string generated by the character string generating unit to an input area arranged in a user interface.