Dual Inference Model for Offline Image Analysis

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Solution Overview

Problem

Information processing apparatuses with limited processing capability, such as digital cameras or mobile terminals, face challenges in analyzing image data accurately and efficiently due to their inability to meet the high processing requirements for learning and inference, especially when communication with external devices is disrupted.

Innovation Solution

The apparatus is equipped with both a simple inference model for offline analysis and a transmission unit to send data to an external device for detailed analysis when connected, allowing it to acquire analysis results even in offline conditions by using a less accurate second inference model for image data analysis.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If image data learning and analysis is performed by an external device with high processing capability, then analysis accuracy is improved, but the system cannot operate when network communication is disconnected

Engineering Contradiction:
Improveanalysis accuracyVSAvoidoperational reliability
Core Design Contradiction:
Measurement precisionVSReliability

Solution Approach 1:

The patent segments the inference model into two versions: a first inference model with high accuracy stored in the external device, and a second inference model with lower accuracy stored in the information processing apparatus. This segmentation allows the system to use the appropriate model based on network availability, resolving the contradiction between accuracy and reliability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent performs preliminary action by storing the second inference model in advance in the information processing apparatus. This allows the device to immediately switch to offline mode and perform image analysis without delay when network communication is disconnected, ensuring continuous operation.

Inventive Principle:
Principle #10Preliminary action

2Measurement precision

If a high processing capability apparatus is used for image data learning, then analysis accuracy is improved, but device complexity and processing requirements increase

Engineering Contradiction:
Improveanalysis accuracyVSAvoidprocessing capability requirements
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent applies local quality by having different inference models with different accuracy levels deployed in different locations. The high-accuracy first inference model resides in the external device, while the lower-accuracy second inference model is placed in the information processing apparatus. This allows each location to have the processing capability appropriate for its specific needs and constraints.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent uses copying by creating a second inference model that is a simplified version or copy of the first inference model. This copied model can be stored and executed in devices with limited processing capability, allowing accurate analysis when connected to the network while maintaining operational capability when disconnected.

Inventive Principle:
Principle #26Copying

3Measurement precision

If a more accurate first inference model is used, then analysis precision is improved, but processing time and computational resources increase

Engineering Contradiction:
Improveanalysis precisionVSAvoidprocessing time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The patent implements dynamics by making the inference model selection dynamic based on network availability. The system can switch between the first inference model (high accuracy, longer processing time) when the external device is accessible, and the second inference model (lower accuracy, shorter processing time) when operating offline. This dynamic adaptation resolves the contradiction between precision and processing time.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS11403841B2Information processing apparatus for analyzing image data, control method for the same, and storage medium
Publication Date: 2022.08.02 CANON KK
  • US11403841B2 patent drawing
  • US11403841B2 patent drawing
  • US11403841B2 patent drawing

AI summary

An information processing apparatus capable of communicating with an external device includes an analysis unit configured to analyze image data and to acquire a second analysis result using a second inference model that is less accurate than a first inference model of an external device when communication with the external device is not possible, a transmission unit configured to transmit the image data to the external device when communication with the external device is possible, and an acquisition unit configured to acquire, from the external device, a first analysis result obtained by analyzing, using the first inference model, the image data transmitted to the external device by the transmission unit. The first inference model and the second inference model are generated by performing machine learning.