Anthropometry Research Group Institute of Biomechanics

Shape Analysis

Advanced 3D body shape analysis tools

Technology transfer and partnership for the development and application of innovative 3D body shape analysis tools:

  • Harmonisation of 3D body raw data
  • Accurate and automated creation of homologous avatars and statistics avatars
  • 3D avatar generation from body measures
  • Digital measuring tape including body dimensions of ISO 7250 and ISO 8559
  • Skeleton Rigging and KinematicsSizing recommendation systems
  • Sizing recommendation systems

Homology concept

Conducting a shape analysis requires necessary that digital 3D human representations share a common structure to describe shapes. The approach followed by our research team is to describe the surface of the human shape being represented with the same topology. This means that all the 3D shapes are represented by the same number of points and that make the models homologous among them, which means there is a point-to-point correspondence.

  • Point-to-point correspondence
  • Pre-defined and custom body regions
  • Pre-defined and custom anatomical body references

At present we have developed two template structures that have been optimised for garment, footwear and orthopaedic applications. Our full body template is made up of 50K vertices (99K faces) and is equipped with a 14-bone skeleton (17 joints). Our foot template is made up of 6K vertices (12K faces).

 

PUBLICATIONS

3D-based resources fostering the analysis, use, and exploitation of available body anthropometric data
Ballester, A., Parrilla, E., Uriel, J., Pierola, A., Alemany, S., Nacher, B. Gonzalez, J., Gonzalez, J.C.

5th International Conference and Exhibition on 3D Body Scanning Technologies, Lugano, Switzerland, October 2014.

[pdf]


Eurofit: Integration, homogenisation and Extension of the Scope of Large 2D Anthropometric Data Pools for Product Development
Trieb, R.; Ballester, A.; Kartsounis, G.; Alemany, S.; Uriel, J.; Hansen, G.; Sanguinetti, M.; Genabith, M.

4th International Conference on 3D Body Scanning Technologies, Long Beach 2013.

[pdf]

3D scans to avatars

We have developed a technology for the accurate and automated creation of avatars (closed homologous surfaces representing the human body shape equipped with a skeleton) from 3D raw scans. Since it is a fully automated process it can be applied massively to large 3D scan databases. Our technology is based on template_fitting methods and was developed by the IBV team within the EuroFit project.

  • Single surface creation
  • Hole filling
  • Natural slit modelling
  • Homologous topology

At present the technology is optimised for 3D scans in standing posture, and we are working on the shape registry of the sitting posture. It has been tested for different 3D-scanning technologies.

Our 3D homologous models or avatars are equipped with a 14-bone and 17-joint skeleton so that they can be reposed to a common posture for massive treatment or to be used in kinematic applications.

 

PUBLICATIONS

3D-based resources fostering the analysis, use, and exploitation of available body anthropometric data
Ballester, A., Parrilla, E., Uriel, J., Pierola, A., Alemany, S., Nacher, B. Gonzalez, J., Gonzalez, J.C.

5th International Conference and Exhibition on 3D Body Scanning Technologies, Lugano, Switzerland, October 2014.

[pdf]


Eurofit: Integration, homogenisation and Extension of the Scope of Large 2D Anthropometric Data Pools for Product Development
Trieb, R.; Ballester, A.; Kartsounis, G.; Alemany, S.; Uriel, J.; Hansen, G.; Sanguinetti, M.; Genabith, M.

4th International Conference on 3D Body Scanning Technologies, Long Beach 2013.

[pdf]

Measurements to avatars

We have developed a technology for the recreation of avatars (closed homologous surfaces representing the human body shape equipped with a skeleton) from a set of body measurements. Our technology uses a model that relates a PCA shape space synthesis to body measurements and then optimises the shape until it reaches the target measurements. Our solution is based on a homologous model database of over 10.000 individuals and was developed by the IBV team within the EuroFit project. Since it is a fully automated process it can be applied massively to large measurement databases.

  • Realistic human body shapes
  • Accurate matching of target measurements
  • Massive 3D recreation of 1D databases
  • Creation of avatars with skeleton from a small (or large) set of measurements

 

PUBLICATIONS

3D-based resources fostering the analysis, use, and exploitation of available body anthropometric data
Ballester, A., Parrilla, E., Uriel, J., Pierola, A., Alemany, S., Nacher, B. Gonzalez, J., Gonzalez, J.C.

5th International Conference and Exhibition on 3D Body Scanning Technologies, Lugano, Switzerland, October 2014.

[pdf]


Eurofit: Integration, homogenisation and Extension of the Scope of Large 2D Anthropometric Data Pools for Product Development
Trieb, R.; Ballester, A.; Kartsounis, G.; Alemany, S.; Uriel, J.; Hansen, G.; Sanguinetti, M.; Genabith, M.

4th International Conference on 3D Body Scanning Technologies, Long Beach 2013.

[pdf]

Digital tape

We have developed a digital measuring tape that enables the measurement extraction from the homologous representation of 3D bodies and avatars. At present, the measuring tape includes over 100 measurements including the most common ISO8559 and ISO7250 measurements and some additional ones typically used in garment and orthotic design.

  • Use of pre-defined measurements
  • Definition of new measurements

 

PUBLICATIONS

3D-based resources fostering the analysis, use, and exploitation of available body anthropometric data
Ballester, A., Parrilla, E., Uriel, J., Pierola, A., Alemany, S., Nacher, B. Gonzalez, J., Gonzalez, J.C.

5th International Conference and Exhibition on 3D Body Scanning Technologies, Lugano, Switzerland, October 2014.

[pdf]


Eurofit: Integration, homogenisation and Extension of the Scope of Large 2D Anthropometric Data Pools for Product Development
Trieb, R.; Ballester, A.; Kartsounis, G.; Alemany, S.; Uriel, J.; Hansen, G.; Sanguinetti, M.; Genabith, M.

4th International Conference on 3D Body Scanning Technologies, Long Beach 2013.

[pdf]

Statistical avatars

The shape analysis methods we conduct are based on Principal Component Analysis of the homologous representation of a set individual body sizes.

Principal Components can synthesise independent shape variations of human body.

 
 

We have developed different standalone software tools to explore, analyse and interpret this information to be used in design-based product innovation. These tools include:

  • PCA calculation by approximate methods (NIPALS and Random SVD)
  • Principal component visualisation of a sequence of shapes or overlapped shapes
  • Extraction of measurements from 3D shapes
  • Calculation of correlations between body measurements and Principal Components
  • Creation of representative digital mannequins of population groups or sizes
  • Segmentation of 3D body parts for product-oriented analyses
  • Creation/Edition of avatars based on Principal Components
  • Modelling of body measurements or other parameters through Principal Components

FULL BODY STATISTIAL AVATARS

 
 

STATISTIAL AVATARS OF BODY PARTS

 

PUBLICATIONS

3D-based resources fostering the analysis, use, and exploitation of available body anthropometric data
Ballester, A., Parrilla, E., Uriel, J., Pierola, A., Alemany, S., Nacher, B. Gonzalez, J., Gonzalez, J.C.

5th International Conference and Exhibition on 3D Body Scanning Technologies, Lugano, Switzerland, October 2014.

[pdf]


Eurofit: Integration, homogenisation and Extension of the Scope of Large 2D Anthropometric Data Pools for Product Development
Trieb, R.; Ballester, A.; Kartsounis, G.; Alemany, S.; Uriel, J.; Hansen, G.; Sanguinetti, M.; Genabith, M.

4th International Conference on 3D Body Scanning Technologies, Long Beach 2013.

[pdf]

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