Dynamic Graphic Recognition for Shake-Tolerant Device Pairing

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Solution Overview

Problem

The challenge of identifying device identity through image scanning is hindered by device shake, causing angle changes in the collected image and preventing accurate reading of identity information.

Innovation Solution

An image processing method and apparatus that identifies primary and secondary graphic bodies within a preset range relative to the device's attitude, allowing character determination even with slight shakes, using dynamic image generation and preset ranges to maintain identification accuracy.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If device 1 shakes during image display, then the angle of the identity image changes, but the identity information cannot be read

Engineering Contradiction:
Improveidentity recognition reliabilityVSAvoidimage distortion due to device shake
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent applies dynamics by making the graphic structure adaptable to different orientations. The primary graphic body and secondary graphic body are designed to maintain their identification function regardless of the device's shaking angle, allowing the identity image to be recognized dynamically under various orientations without requiring perfect alignment

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the parameter of graphic position relationship by defining a preset range for the secondary graphic body's position on the primary graphic body. This range allows for positional variations caused by shaking while still enabling successful identification, effectively accommodating parameter changes due to device movement

Inventive Principle:
Principle #35Parameter changes

2Measurement precision

If the angle of the identity image changes due to shaking, then image distortion occurs, but accurate reading of identity information becomes impossible

Engineering Contradiction:
Improveidentity information reading accuracyVSAvoidimage shape distortion
Core Design Contradiction:
Measurement precisionVSShape

Solution Approach 1:

The patent defines a preset range for the position of the secondary graphic body on the primary graphic body, allowing positional parameter variations within this range to still enable accurate identification. This approach maintains measurement precision despite shape distortion caused by shaking

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The graphic structure is designed to be dynamically recognizable across multiple orientations. The relationship between primary and secondary graphic bodies maintains its identification function even when the overall image shape distorts due to shaking, separating the critical identification elements from the distorted background

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS12444218B2Image processing method and apparatus for establishing wireless connection between devices
Publication Date: 2025.10.14 VIVO MOBILE COMM CO LTD
  • US12444218B2 patent drawing
  • US12444218B2 patent drawing
  • US12444218B2 patent drawing

AI summary

An image processing method and apparatus are provided. The method includes: acquiring a target image. The target image is an image obtained by capturing a dynamic image displayed by a first device by means of a second device. The dynamic image is used for indicating configuration information of the first device. The first device has a first attitude. The methods further includes identifying a primary graphic body of a first graphic and a secondary graphic body of the first graphic. The first graphic is a graphic in the target image. The method also includes determining a first character corresponding to the first graphic and identifying the first device based on the first character.