Image Sensor Module Memory Board Calibration Transfer

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Solution Overview

Problem

Multi-sensor cameras face issues when image fusion fails, leading to distorted images due to unknown unique information about image sensors, especially when the main board processing the images is replaced, as the calibration information is stored on the replaced camera's main board.

Innovation Solution

An image sensor module with a memory board that stores calibration information, including distance and sensor characteristics, which is transmitted to a new main board when connected or powered on, allowing for easy replacement and maintenance of the image processing module without replacing the entire camera system.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If calibration information is stored in the main board of the replaced camera, then image fusion can be performed accurately, but the entire camera system must be replaced when the main board fails

Engineering Contradiction:
Improveimage fusion accuracyVSAvoidsystem replacement requirement
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent divides the calibration information storage function from the main board and places it in a separate memory board within the image sensor module. This segmentation allows the calibration data to be independently stored and transferred, so when the main board fails, only the main board needs replacement while the memory board with calibration information can be reused or transferred to a new main board.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent implements a copying mechanism where calibration information stored in the memory board can be copied to the main board or a new main board. This ensures that when the main board fails, the calibration data can be replicated to a replacement board, avoiding the need to replace the entire camera system and maintaining image fusion accuracy.

Inventive Principle:
Principle #26Copying

2Ease of repair

If the main board is replaced, then system maintenance is improved, but unique sensor information is lost causing image distortion

Engineering Contradiction:
Improvemain board replaceabilityVSAvoidcalibration information
Core Design Contradiction:
Ease of repairVSLoss of information

Solution Approach 1:

The patent stores calibration information in advance in the memory board, which is part of the image sensor module that remains in place. Before the main board is replaced, the calibration data is already prepared and stored in the memory board, enabling quick restoration of image fusion functionality after main board replacement without information loss.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The memory board acts as an intermediary that holds the calibration information independently of the main board. This intermediary storage allows the calibration data to be transferred from the old main board to the new main board, or directly accessed from the memory board, preventing information loss during main board replacement.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Adaptability or versatility

If calibration information is transferred to a new main board, then system adaptability is improved, but additional transmission steps are required

Engineering Contradiction:
Improvemain board interchangeabilityVSAvoidinformation transfer process
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines the calibration information storage function with the image sensor module by placing it in the memory board, which is integrated with the image sensors. This merging ensures that when a new main board is installed, the calibration data is already available in the memory board, simplifying the adaptation process and reducing the complexity of information transfer.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS11394951B2Image sensor module
Publication Date: 2022.07.19 HANWHA VISION CO LTD
  • US11394951B2 patent drawing
  • US11394951B2 patent drawing
  • US11394951B2 patent drawing

AI summary

Provided are an image sensor module, an image processing module, and an imaging device including the two modules. The image sensor module includes: a plurality of image sensors: a frame in which the image sensors are mounted to have different imaging angles; and at least one memory configured to store calibration information reflecting distance information generated from images obtained by the image sensors, respectively.