3D Data Collection Using Non-Coaxial Omnidirectional Mirrors

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Solution Overview

Problem

Existing three-dimensional data collection techniques, such as those using three-mirror panoramic cameras, face challenges in miniaturization due to the need for sophisticated optical systems and precise alignment, which complicates the collection of accurate and portable 3D information.

Innovation Solution

An optical apparatus comprising a single optical detector and two omnidirectional mirrors with non-coaxial and non-co-planar reflection surfaces, allowing for the collection of three-dimensional information by reflecting light from an object onto the detector, enabling compact and efficient data acquisition.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If a three-mirror panoramic camera system is used to collect 3D information, then measurement precision is improved, but device complexity and volume increase

Engineering Contradiction:
Improve3D data accuracyVSAvoidoptical system complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent extracts and eliminates the complex three-mirror subsystem from the optical system, retaining only the essential components (single mirror or reflective surface and image sensor) while achieving the same 3D measurement function through simplified geometry and computational methods

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent replaces complex mechanical optical alignment systems with computational geometry and image processing algorithms, using software-based triangulation and perspective projection to achieve 3D reconstruction without requiring precise mechanical alignment of multiple mirrors

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Measurement precision

If a three-mirror panoramic camera system is used to collect 3D information, then measurement precision is improved, but the device size increases affecting portability

Engineering Contradiction:
Improve3D data accuracyVSAvoiddevice volume
Core Design Contradiction:
Measurement precisionVSVolume of moving object

Solution Approach 1:

The patent removes the bulky three-mirror subsystem and replaces it with a compact single-mirror or reflective-surface configuration, dramatically reducing the physical volume of the device while maintaining 3D measurement capability through computational methods

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent transitions from a purely optical 3D solution (requiring physical mirror arrangements in three-dimensional space) to a computational 3D solution where the reflective surface captures 2D image data that is then processed algorithmically to reconstruct 3D geometry, eliminating the need for complex physical mirror geometry

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Measurement precision

If a three-mirror panoramic camera system is used, then 3D data collection capability is improved, but alignment precision requirements increase

Engineering Contradiction:
Improve3D data accuracyVSAvoidalignment precision
Core Design Contradiction:
Measurement precisionVSManufacturing precision

Solution Approach 1:

The patent replaces mechanical alignment precision requirements with computational geometry and image processing algorithms, using software-based triangulation and perspective projection to achieve 3D reconstruction without requiring precise mechanical alignment of multiple mirrors

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the approach from physical parameter alignment (mirror angles and positions) to computational parameters (image coordinates, camera calibration, triangulation algorithms), where 3D accuracy is achieved through mathematical processing rather than mechanical precision

Inventive Principle:
Principle #35Parameter changes

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This configuration provides improved spatial resolution and compactness, facilitating the collection of accurate 3D data without the need for complex alignment, enhancing the portability and efficiency of 3D data collection.

Implementation Method 1

two omnidirectional mirrors with non-coaxial and non-co-planar reflection surfaces, allowing for the collection of three-dimensional information by reflecting light from an object onto the detector

Methodology Applied
Scientific EffectReflection: Reflection

Data Source

PatentUS10095014B2Optical apparatuses to collect three-dimensional information of an object
Publication Date: 2018.10.09 SONY GROUP CORP
  • US10095014B2 patent drawing
  • US10095014B2 patent drawing
  • US10095014B2 patent drawing

AI summary

The present disclosure relates to an optical apparatus of collecting three-dimensional information of an object, which includes an optical apparatus of collecting three-dimensional information of an object, which includes an optical detector, a first omnidirectional mirror and a second omnidirectional mirror. The second omnidirectional mirror is disposed between the optical detector and the first omnidirectional mirror.