Mixed Reality Sensor Management via Segmented Information Processing

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Solution Overview

Problem

Existing mixed reality systems require users to manually manage sensor combinations and calibrate cameras and sensors, which is labor-intensive and prone to errors due to interdependent tool processes and fixed tool orders.

Innovation Solution

An information processing apparatus and method that acquires images and sensor data to calculate position and orientation, allowing for dynamic parameter setting through a user interface that determines options based on stored parameter information, enabling flexible system modification without requiring source code changes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the type of alignment function or sensor is modified in the software library, then the system can accommodate new sensor types and alignment methods, but the source code of the application program must be rewritten and recompiled

Engineering Contradiction:
Improvesensor type compatibilityVSAvoidapplication modification effort
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The system separates the sensor management and parameter configuration functions from the application logic. The information processing apparatus handles sensor type identification, parameter dependency management, and calibration coordination independently, allowing applications to remain unchanged when sensors are modified.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The information processing apparatus acts as an intermediary between the sensors and the application program. It manages the parameter information, determines valid parameter combinations based on stored dependencies, and presents appropriate user interfaces, thereby shielding the application from sensor-specific details.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If users manually manage sensor combinations and calibration processes, then system configuration flexibility is maintained, but the process becomes labor-intensive and error-prone

Engineering Contradiction:
Improvesystem configuration flexibilityVSAvoidcalibration process complexity
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The information processing apparatus automatically manages parameter configurations and calibration processes. It retrieves stored parameter information, determines valid combinations based on dependencies, and coordinates calibration tools automatically, reducing manual intervention while maintaining configuration flexibility.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system uses stored parameter information to provide feedback on valid parameter combinations and dependencies. The presentation unit displays only applicable parameters based on current sensor configurations, guiding users through appropriate settings and preventing erroneous configurations.

Inventive Principle:
Principle #23Feedback

3Measurement precision

If dedicated calibration tools are used for camera and sensor, then measurement precision is improved, but the fixed tool order and interdependent data create operational complexity

Engineering Contradiction:
Improvecalibration accuracyVSAvoidtool usage complexity
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The system performs preliminary identification of sensor types and retrieval of related parameter information before executing calibration processes. The information processing apparatus determines the appropriate calibration sequence and parameter combinations in advance, eliminating the need for users to understand complex tool dependencies.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS7558403B2Information processing apparatus and information processing method
Publication Date: 2009.07.07 CANON KK
  • US7558403B2 patent drawing
  • US7558403B2 patent drawing
  • US7558403B2 patent drawing

AI summary

A configuration for measuring the position and the orientation specific to a mixed reality is separated from an application 70 to operate independently, and a shared memory 60 or process-to-process communication is used for data communication between them. This allows to modify configuration associated with the measurement of the position and the orientation such as the type of the sensor or an alignment method without modifying or recompiling the application 70. This facilitates providing the mixed reality system and supporting system modification.