Here are links to the latest Piper tool and model (Use 7zip to extract the 7z archives).

Piper software:

• PIPER software to position and personalize human body models for Windows 64-bit, version 1.1.0 (released 27.8.2020). Available under the GPLv2 or later license. The up-to-date documentation of the tool is in the archive (can be opened from the application by pressing F1). You can try the patch below if you already have 1.0.3. See the Changelog for list of changes.
• Patch 1.1.0 (released 27.8.2020) for Piper (windows 64). This patch will update version 1.0.3 to 1.1.0. In case you don't have Piper 1.0.3, download directly the full package 1.1.0 (link above).
• The source code can be found on the https://gitlab.com/piper-project.org/application. The original versions of sofa and plugins needed for compilation can be found here: piper-project-org_sofa_reqs.7z.

Piper child model (version 1.0.0):

• The PIPER child model. Available under the GPLv3 +liability and open science clauses. The last public document is a manuscript written for the Conference on the Protection of children in Cars end of 2016. The pdf is available here. There are a few evolutions.
• The pedestrian version. Under the same license and derived from the occupant. v1.0.2 with minor update on mass and instrumentation (Thanks PDB for the contribution!)
• The pedestrian version in Pamcrash. Under the same license and derived from the occupant. (Thanks PDB and ATD Models for the contribution!)
• The occupant Radioss version. Derived from the occupant Ls-dyna version (under the same license). Thanks to Altair for the contribution. It is provided with metadata to import into the PIPER software (warning: there seems to be an issue with bone collisions in the preposition module).

Preemie body shapes:

• Update to version 1.0.1. available as an archive at https://gitlab.com/piper-project.org/preemie/-/archive/1.0.1/preemie-1.0.1.zip on the gitlab. It was contributed by Karin Brolin, Victor Alvarez, August Brandberg and Magnus Fridsell from Lightness by Design (lightness.eu).
• The first version (1.0.0) of preemie body shapes representing the 5th, 50th and 95th percentiles as an archive preemie_body_shapes_package_v1.0.7z. It was contributed by Karin Brolin, Victor Alvarez and August Brandberg from lightness.eu. It is on the gitlab at https://gitlab.com/piper-project.org/preemie in case of difficulties downloading it.

Others:

• a wiki with tutorials and guidelines also on the gitlab. For communication, please use the issue function.
• All videos from the final workshop in Paris (talks only, no audience) are available on PIPER youtube channel

Older versions:

• PIPER software to position and personalize human body models for Windows 64-bit, version 1.0.3 (released 4.3.2020). Available under the GPLv2 or later license. You can try the patch below if you already have 1.0.2. See the Changelog for list of changes.
• Patch 1.0.3 (released 4.3.2020) for Piper (windows 64). This patch will update version 1.0.2 to 1.0.3. In case you don't have Piper 1.0.2, download directly the full package 1.0.3 (link above).
• PIPER software to position and personalize human body models for Windows 64-bit, version 1.0.2 (released 5.12.2017). Available under the GPLv2 or later license. Use the patch below instead of this full package download in case you already have Piper 1.0.1 to save time!
• Patch 1.0.2 (released 5.12.2017) for Piper (windows 64). This patch will update version 1.0.1 to 1.0.2. In case you don't have Piper 1.0.1, download directly the full package (link above).
• PIPER software to position and personalize human body models for Windows 64-bit, version 1.0.1 (released 19.7.2017). Available under the GPLv2 or later license. The documentation of the tool is in the archive and also online.

Besides the software and the child model, the Git repository (https://gitlab.com/piper-project.org/ also provides:

• some anthropo models (to be used with scalable constraints)
• a reference geometrical model (see also data below)
• vehicle environments (including generic child restraint systems released by VFSB. Thank you)

Many questions right now are related to the use of the software with commercial models (e.g. Thums, GHBMC). We are currently still discussing with the model owners on the best way to make available the metadata for these. In the meantime, we cannot provide metadata examples for these models. Some metadata are provided (in particular for the GHBMC models) or available from third parties.

You can now find more info on the Metadata page.

An excel sheet with regressions to predict postural parameters in reclined seating. Based on Grebonval et al. (2026)Reclined postures when changing both seat back and seat pan angles (Traffic Injury Prevention): surca_posturepredict_2026-04.xlsx

The project also decided to release most data generated or formatted during the project. Please see the files for documentation (license, source, …). A list is provided below:

• Formatted public anthropometric databases (ANSUR, Snyder, CCTanthro): on the Gitlab (within PIPER)

• PIPER reference model (geometric) with landmarks (LTE635)
  • In the PIPER format
  • In the slicer format, with the full body CT scan (264MB)

• PIPER landmark database (22 subjects)
  • documentation and landmarks files (3MB)
  • full database with bone meshes, landmarks, scripts (319 MB)
  • Slicer plugin to help adding subjects (40k)
  • Database description and a few helper scripts (in Scilab)

• Full body skeletal segmentations (Volmo):
  • LTE605 (32MB)
  • LTE628 (42MB)

• Partial skeletal segmentations:
  • Meshes generated using Anatoreg (www.anatoscope.com): 14 sets (50MB) (7 sets of upper and lower limbs in 2 different coordinate systems, 6 sets of upper and lower limbs in the same coordinate system, 1 set of lower limbs)
  • Meshes generated using an older version of Anatoreg: 25 sets (all partial, draft meshes) (374 MB)
  • Meshes generated semi automatically on 1 subject (670) (54 MB)

• Other datasets
  • Lower Limb Bony Landmarks derived from the raw measurements of the data from Thomas M. Kepple, H.J. Sommer III, Karen Lohmann Siegel, Steven J. Stanhope. (1998) A three-dimensional musculoskeletal database for the lower extremities. Journal of Biomechanics 31 77—80. Formatted for PIPER.