3D Human Body Model Reconstruction from 2D Images

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Current three-dimensional human body modeling techniques are costly and inconvenient due to the high expense of human body scanners and the requirement for specific positioning and minimal clothing, limiting the accessibility and efficiency of model establishment.

Innovation Solution

A method using electronic devices to acquire human body images, extract original profiles, calculate body surface profiles, and construct three-dimensional human body models without the need for scanners, allowing for flexible positioning and clothing, employing image segmentation algorithms and human-like templates to determine body features and interpolate profiles.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If a human body scanner is used to obtain three-dimensional human body model, then the measurement precision and manufacturing precision are improved, but the cost and device complexity increase significantly

Engineering Contradiction:

Improvethree-dimensional human body model accuracyVSAvoidscanner requirement

Core Design Contradiction:

Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent uses two-dimensional human body images as copies or projections of the actual human body, instead of requiring direct three-dimensional scanning. By processing multiple 2D images from different angles and reconstructing the 3D model from these image copies, the system achieves accurate modeling without needing complex scanner hardware

Inventive Principle:

Principle #26Copying

Solution Approach 2:

The patent replaces the mechanical scanning system with an image processing system. Instead of using physical scanners to directly capture 3D data, the system uses cameras or image acquisition devices to capture 2D images, then uses computational algorithms to reconstruct the 3D model, substituting mechanical scanning with optical imaging and digital processing

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Manufacturing precision

If a human body scanner is used to obtain three-dimensional human body model, then the manufacturing precision is improved, but the ease of operation deteriorates due to positioning and clothing requirements

Engineering Contradiction:

Improvethree-dimensional human body model accuracyVSAvoidmodeling process convenience

Core Design Contradiction:

Manufacturing precisionVSEase of operation

Solution Approach 1:

The patent captures human body images in natural states wearing regular clothes, creating image copies that represent the body's external appearance. The processing system then extracts the body profile from these images, eliminating the need for specialized positioning and undressing procedures required by traditional scanners

Inventive Principle:

Principle #26Copying

Solution Approach 2:

The patent makes the modeling process universally applicable to normal daily life scenarios. The system can process images taken with ordinary cameras in various environments and clothing conditions, making the technology adaptable to diverse situations rather than requiring controlled scanning conditions

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Measurement precision

If traditional scanning methods are used, then the measurement precision is improved, but the loss of time increases due to complex preparation and positioning

Engineering Contradiction:

Improvehuman body measurement accuracyVSAvoidmodel establishment time

Core Design Contradiction:

Measurement precisionVSLoss of time

Solution Approach 1:

The patent performs preliminary actions by capturing multiple 2D images from different angles in advance, which are then processed to reconstruct the 3D model. This approach allows the actual modeling to proceed more quickly since the image data is already captured and can be processed automatically without real-time scanning delays

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent replaces time-consuming mechanical scanning with faster image capture and automated digital processing. The system uses computational algorithms to rapidly reconstruct 3D models from 2D images, significantly reducing the time required compared to traditional scanning methods that require precise mechanical positioning and scanning sequences

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS10832472B2Method and/or system for reconstructing from images a personalized 3D human body model and thereof

Publication Date: 2020.11.10 THE HONG KONG POLYTECHNIC UNIV

AI summary

A human body modelling method and apparatus and an electronic device. The method comprises: acquiring at least one human body image; extracting an original profile of a human body from the human body image; calculating a body surface profile of the human body according to the original profile; and constructing a three dimensional human body model according to the body surface profile. The establishment of a three dimensional human body model originates from two dimensional human body images, without using a human body scanner to scan a human body, which reduces the cost of establishing the three dimensional human body model. Moreover, there is no requirement for the position and dressing of a human body object, and the process of establishing the three dimensional human body model is more convenient.