3D Model Generation from 2D Images for Wearable Sizing
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Solution Overview
Problem
The challenge in e-commerce is that products like glasses and wearable devices cannot be tried on for a suitable size, leading to increased exchange or return processes, hindering the development of online shopping due to size inappropriateness.
Innovation Solution
A measurement device and processor system that captures two-dimensional images and generates three-dimensional models by correlating two-dimensional and three-dimensional positioning points, allowing for precise measurement of body parts without the need for physical presence, enabling accurate data transmission for customized product sizing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If two-dimensional image measurement is used, then the measurement process is simple and fast, but the measurement precision is insufficient for accurate product sizing
Solution Approach 1:
The patent transitions from two-dimensional image capture to three-dimensional model construction by mapping multiple two-dimensional positioning points to three-dimensional positioning points. This dimensional transformation enables accurate measurement of body part dimensions (length, width, depth) that cannot be obtained from flat 2D images alone, directly resolving the measurement precision limitation while maintaining operational simplicity through automated processing.
Solution Approach 2:
The system creates a three-dimensional digital model (virtual copy) of the target object's body parts based on captured images and positioning point correspondence. This 3D model serves as an accurate digital replica that can be measured precisely without requiring physical contact or complex measurement devices, achieving high measurement precision through computational modeling rather than physical measurement tools.
2Measurement precision
If three-dimensional model construction is implemented, then measurement precision is improved, but the processing time and computational complexity increase
Solution Approach 1:
The system pre-establishes the correspondence relationships between two-dimensional positioning points in captured images and three-dimensional positioning points in the target model before actual measurement occurs. By preparing this mapping framework in advance, the system enables rapid 3D model construction and measurement when images are captured, reducing real-time processing time while maintaining high measurement precision through the pre-configured spatial relationships.
3Ease of operation
If physical store visits are required for size measurement, then accurate measurements can be obtained, but the convenience of online shopping is reduced
Solution Approach 1:
The patent replaces physical mechanical measurement systems (rulers, tape measures, fitting rooms) with an optical-digital measurement system using camera capture, image processing, and 3D model construction. This substitution allows measurements to be performed remotely through digital imaging and computational algorithms, maintaining measurement precision while eliminating the need for physical store visits, thereby greatly improving ease of operation and enabling convenient online shopping.
Data Source
AI summary
A measurement device adapted to cooperate with a three-dimensional image is provided. The three-dimensional image includes a plurality of three-dimensional positioning points. The measurement device comprises: a first camera unit for providing a two-dimensional image; an analysis module for analyzing the two-dimensional image to define a plurality of two-dimensional positioning points; a matching module for making the two-dimensional positioning points correspond to the three-dimensional positioning points, respectively, to generate a three-dimensional model; an input module for receiving a starting point and a destination in the two-dimensional image; a measurement module for obtaining first position information and second position information that correspond to the starting point and the destination respectively and calculating data; and an output module. A processor configured to execute a measurement method is also provided.