Garment Fit Determination Using Interocular Distance Scaling

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Solution Overview

Problem

Existing methods for determining a subject's body measurements remotely are often inaccurate and require external reference objects, which can be inconvenient and unreliable.

Innovation Solution

The use of interocular distance (IOD) as a stable anthropometric parameter to automatically scale images of a subject, allowing for accurate measurement of body dimensions without the need for external references, using a computing device with a camera to determine IOD and apply a scaling factor for precise garment sizing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If external reference objects are used to scale images for body measurement, then measurement accuracy can be improved, but device complexity and ease of operation deteriorate due to requiring additional objects and proper positioning

Engineering Contradiction:

Improvebody measurement accuracyVSAvoidoperational convenience

Core Design Contradiction:

Measurement precisionVSEase of operation

Solution Approach 1:

The system uses the subject's own anatomical feature (interocular distance between eyes) as the reference standard for scaling measurements. This eliminates the need for external reference objects and allows the measurement system to self-calibrate using inherent subject characteristics, thereby improving ease of operation while maintaining measurement precision

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The patent extracts and utilizes a specific anatomical parameter (interocular distance) from the subject as the scaling reference. By taking out this reliable anatomical feature and using it as the basis for all measurements, the system removes the dependency on external reference objects while preserving measurement accuracy

Inventive Principle:

Principle #2Taking out (Extraction)

2Reliability

If external reference objects are used to correct image distortions, then measurement reliability can be improved, but device complexity increases due to requiring additional equipment and setup

Engineering Contradiction:

Improvemeasurement reliabilityVSAvoidsystem complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The system performs self-calibration by using the subject's interocular distance as an inherent reference standard. This approach makes the measurement system self-sufficient, eliminating the need for external calibration objects or complex setup procedures while maintaining reliable measurements

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The interocular distance serves multiple functions: it acts as both the scaling reference and the distortion correction baseline. This universal anatomical parameter enables the system to perform multiple calibration functions without requiring separate reference objects, thereby reducing device complexity while maintaining reliability

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Measurement precision

If conventional manual measurement methods are used, then measurement accuracy can be maintained, but productivity and ease of operation deteriorate due to requiring manual assistance and time-consuming processes

Engineering Contradiction:

Improvegarment fitting accuracyVSAvoidmeasurement efficiency

Core Design Contradiction:

Measurement precisionVSProductivity

Solution Approach 1:

The patent replaces manual mechanical measurement processes with an automated optical measurement system. The system captures images and automatically calculates body measurements using image processing and the interocular distance reference, eliminating the need for manual measurement tools and human operators while maintaining accuracy and significantly improving productivity

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system performs preliminary automated image capture and processing to determine body measurements. By pre-processing the images and automatically calculating dimensions based on the interocular distance reference, the system eliminates the need for time-consuming manual measurement steps, thereby improving productivity while maintaining measurement precision

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS10699403B2Systems and methods to automatically determine garment fit

Publication Date: 2020.06.30 L I F E

AI summary

Systems and methods for automatically determining of garment sizing (e.g., fit) using a images including video images. The method may perform non-contact estimations of garment fit from visual (e.g., video) input by receiving an video of the subject's head and face and profile and determining a scaling factor from the subject's intraocular spacing and using this scaling factor when analyzing images of other body regions to determine garment sizing.