3D Model Reconstruction Compensating for Motion Blur Artifacts

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Solution Overview

Problem

Existing three-dimensional imaging technologies face challenges in accurately reconstructing objects due to motion blur artifacts caused by object movement during scanning, leading to incorrect representation of static and moving objects.

Innovation Solution

A method and apparatus that utilize a camera and scanner system, where a controller aligns scan lines or slice scans by intersecting them in three-dimensional space, compensating for object movement by maintaining a precise spatial relationship and using distinct visual features to correct for motion blur, allowing for accurate reconstruction of objects despite movement in x, y, and z directions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple scan lines or image slices are combined to reconstruct three dimensional shape, then three dimensional reconstruction capability is improved, but motion blur artifacts increase due to object movement during scanning

Engineering Contradiction:

Improvethree dimensional reconstruction capabilityVSAvoidreconstruction accuracy

Core Design Contradiction:

Adaptability or versatilityVSMeasurement precision

Solution Approach 1:

The patent introduces camera images as an intermediary reference frame to align scan lines. The camera captures images of the object at different times, and these images serve as a mediator to determine the spatial relationship between scan lines acquired at different times, thereby compensating for motion blur artifacts during 3D reconstruction

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The system uses camera images to provide feedback about the object's position and motion between scan acquisitions. By analyzing the camera images, the system determines how the object moved during scanning and adjusts the alignment of scan lines accordingly, creating a feedback loop that corrects motion-induced reconstruction errors

Inventive Principle:

Principle #23Feedback

2Adaptability or versatility

If scan lines are acquired at different times to capture object movement, then motion information is improved, but spatial relationship between scan lines becomes uncertain

Engineering Contradiction:

Improvemotion detection capabilityVSAvoidspatial relationship precision

Core Design Contradiction:

Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

Camera images serve as a stable intermediary reference that exists in both temporal and spatial domains. By anchoring scan lines to the camera image coordinate system, the patent establishes a precise spatial relationship between scans acquired at different times, while still allowing motion information to be extracted from the sequence of images

Inventive Principle:

Principle #24Intermediary (Mediator)

3Area of stationary object

If scanning time is extended to improve coverage, then three dimensional coverage is improved, but motion blur artifacts increase

Engineering Contradiction:

Improvethree dimensional coverageVSAvoidreconstruction accuracy

Core Design Contradiction:

Area of stationary objectVSMeasurement precision

Solution Approach 1:

The patent performs preliminary alignment of scan lines using camera images before final reconstruction. By pre-aligning the scan lines to the camera coordinate system and compensating for expected motion, the system can extend scanning time for better coverage while maintaining reconstruction accuracy through the pre-established spatial relationships

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS9972101B2Reconstruction of three dimensional model of an object from surface or slice scans compensating for motion blur

Publication Date: 2018.05.15 IMAGE RECOGNITION TECH LLC

AI summary

Techniques for creating a three dimensional model of an object and eliminate artifacts due to object motion. Such techniques are applied to line scans and slice scans of an object.