Electronic Device Image Processing for Authentication

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Solution Overview

Problem

Existing electronic devices face challenges in efficiently processing images for Region Of Interest (ROI) identification, power consumption, and authentication speed, particularly in high-resolution image handling and user interface operations.

Innovation Solution

The method involves displaying an image of a first resolution, determining a partial region of interest, and displaying a corresponding image of a higher or equal second resolution, using image sensors and processors to perform down sampling and user input-based ROI identification, thereby reducing power consumption and enhancing authentication speed.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If high resolution images are displayed for authentication, then authentication precision is improved, but power consumption increases

Engineering Contradiction:

Improveauthentication precisionVSAvoidpower consumption

Core Design Contradiction:

Measurement precisionVSUse of energy by moving object

Solution Approach 1:

The image is divided into multiple regions, with only the region containing the authentication target (e.g., iris) being processed at high resolution. Other regions are processed at lower resolution, reducing overall power consumption while maintaining authentication precision.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different resolution qualities are applied to different regions of the image. The authentication target region is processed with high resolution to ensure precision, while non-critical regions use lower resolution to reduce power consumption.

Inventive Principle:

Principle #3Local quality

2Speed

If high resolution images are processed, then authentication speed is improved, but power consumption increases

Engineering Contradiction:

Improveauthentication speedVSAvoidpower consumption

Core Design Contradiction:

SpeedVSUse of energy by moving object

Solution Approach 1:

The image processing is segmented into multiple stages: initial low-resolution scanning to locate the authentication target, followed by high-resolution processing only of the relevant region. This segmentation accelerates authentication while controlling power consumption.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

A preliminary low-resolution image analysis is performed first to identify the location of the authentication target before committing to high-resolution processing. This preliminary action reduces unnecessary high-power processing and speeds up the overall authentication process.

Inventive Principle:

Principle #10Preliminary action

3Measurement precision

If full resolution images are displayed, then image detail is improved, but user interface intuitiveness decreases

Engineering Contradiction:

Improveimage detailVSAvoiduser interface intuitiveness

Core Design Contradiction:

Measurement precisionVSEase of operation

Solution Approach 1:

The display is segmented to show different resolution levels in different regions. The authentication target region is displayed with high detail, while other regions use lower resolution, making the overall interface more intuitive and easier to navigate.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

High image detail is applied locally only where necessary for authentication, while the rest of the interface maintains lower resolution for better overall visibility and user interaction. This creates a more intuitive user experience.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS9633273B2Method for processing image and electronic device thereof

Publication Date: 2017.04.25 SAMSUNG ELECTRONICS CO LTD

AI summary

A method of operating an electronic device is provided. The method of operating an electronic device includes displaying an image of a first resolution, determining at least a partial region of the image, and displaying an image of a second resolution corresponding to the partial region.