Remote 3D Annotation Trajectory Sharing With Inflection-Point Encoding

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Solution Overview

Problem

Existing remote transmission mechanisms for augmented and mixed reality systems face challenges in efficiently sharing three-dimensional trajectory annotations in real-time, leading to imaging delays due to large data volumes.

Innovation Solution

A method and system for remote sharing of three-dimensional trajectory annotations that involves detecting inflection points and diameters of movement trajectories, encoding this information, and transmitting it between electronic apparatuses, allowing reconstruction of the trajectories based on reference points, thereby reducing the data volume transmitted.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If complete three-dimensional trajectory data is transmitted in real-time remote sharing, then the trajectory information is complete and accurate, but the data transmission volume is large causing imaging delays

Engineering Contradiction:
Improvetrajectory information completenessVSAvoidimaging delay
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The patent extracts only the essential inflection point information and diameter parameters from the complete three-dimensional trajectory data. Instead of transmitting the entire trajectory dataset, the system identifies and transmits only the critical inflection points that define the trajectory's shape and characteristics, significantly reducing data volume while preserving the essential trajectory information needed for accurate reconstruction at the remote end.

Inventive Principle:
Principle #2Taking out (Extraction)

2Manufacturing precision

If detailed three-dimensional trajectory data is shared remotely, then the reconstruction accuracy is high, but the data transmission time increases

Engineering Contradiction:
Improvetrajectory reconstruction accuracyVSAvoiddata transmission time
Core Design Contradiction:
Manufacturing precisionVSLoss of time

Solution Approach 1:

The patent transforms the trajectory representation from a dense set of three-dimensional coordinate points to a simplified parameter set consisting of inflection point coordinates and diameter values. This parameter transformation maintains the essential geometric characteristics needed for accurate reconstruction while dramatically reducing the data size that needs to be transmitted over the network.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If full trajectory data is transmitted for remote annotation sharing, then the annotation quality is high, but the network bandwidth consumption is excessive

Engineering Contradiction:
Improveannotation qualityVSAvoiddata transmission volume
Core Design Contradiction:
ReliabilityVSQuantity of substance

Solution Approach 1:

The patent creates a simplified conceptual model or 'copy' of the trajectory that captures its essential features through inflection points and diameter parameters. This abstracted representation serves as a sufficient copy for remote annotation purposes, eliminating the need to transmit the complete original trajectory dataset while maintaining annotation quality.

Inventive Principle:
Principle #26Copying

Data Source

PatentUS12412281B2Method and system for remote sharing three dimensional space annotation trajectory
Publication Date: 2025.09.09 IND TECH RES INST
  • US12412281B2 patent drawing
  • US12412281B2 patent drawing
  • US12412281B2 patent drawing

AI summary

A method and a system for remote sharing annotation trajectory in a three-dimensional space are provided. In response to activating a first electronic apparatus, the first electronic apparatus obtains a first reference point of a designated object presented in the first space. After the first space is displayed, the first electronic apparatus detects a three-dimensional movement trajectory of a target object in the first space, detects inflection point information of the three-dimensional movement trajectory and captures a diameter of the three-dimensional movement trajectory, and sends the inflection point information and the diameter to a second electronic apparatus. In response to activating the second electronic apparatus to display a second space, the second electronic apparatus reconstructs the three-dimensional movement trajectory based on the inflection point information and the diameter, and presents the three-dimensional movement trajectory in the second space based on a second reference point relative to the first reference point.