3dMDfoot System | Dynamic 4D Foot Capture and 3D Reconstruction

The human foot changes shape significantly between weighted, unweighted, and in-motion states… making it one of the most challenging anatomical structures to capture and reconstruct with near ground truth 3D-shape accuracy. Traditional measurement tools… laser and hand scanners that capture a motionless fully weighted foot, and pressure plates that record load distribution without 3D shape… miss the dynamic reality entirely. The 3dMDfoot system series was purpose-built to capture exactly that… the full foot including the plantar surface, in natural motion, with near ground truth 3D-shape accuracy.

Capturing 360-degree full foot coverage including the plantar surface dynamically in 3D/4D, the 3dMDfoot system delivers real-world dense-surface foot data at the anatomical fidelity that the most demanding applications require. In healthcare, 3dMDfoot data supports clinical teams in monitoring and measuring foot mobility, morphology, and dynamic shape change throughout treatment cycles… from diabetic foot assessment and deformity monitoring through to orthotic and prosthetic design and post-surgical evaluation. Beyond healthcare, the same near ground truth full foot geometry powers AI and Machine Learning foot model development… human factors and fit design for footwear, performance sports shoes, and orthotics across diverse subject populations… and real-world dynamic foot data for wearable tech and smart footwear development.

Region of Interest:	Provides 360-degree full foot coverage [including the bottom] of one or two feet. Captures natural step with foot articulation dynamically in 3D over a period of time (4D).
Capture Speed Options (3D frames per second):	1-40fps, 1-60fps, or 1-120fps with high precision 3D shape information generated for each frame, regardless of capture speed. Run system in record, burst, or single snap mode.
3D Image Reconstruction Technique:	Sophisticated software-driven triangulation technique called Active Stereo Photogrammetry.
3D Image Reconstruction per Frame:	Automatic generation of an individual 3dMD image from all stereo viewpoints within the system to create a single continuous 3D point cloud or mesh (no manual stitching or registration needed per frame).
3D Shape Accuracy:	Delivers ‘near-ground truth’, high-precision 3D dense surface images with a linear accuracy range of 0.7mm or better… also known as first generation, Real-World data.
Output Options:	A progressive sequence of 3dMD images from a recording, a short progressive sequence of 3dMD images from a burst, and a single 3dMD image from a single snap.
Output. File Formats Supported:	obj, stl, ply, gltf, glb, x3d, 3mf, as well as all other industry-standard open formats for use in downstream 3dMD and third-party software.
Baseline 3dMDfoot System Configuration:	3dMDfoot5 System captures a single foot. Incorporates optics-based technology with five (5) viewpoints synchronized with a robust LED lighting system.
Specialized 3dMDfoot System Configurations:	Depending on requirements [one or two feet; types of actions; areas of interest; etc.], 3dMD can configure the 3dMDfoot System to include additional MCUs to accommodate these requirements. 3dMDfoot system configurations range from the baseline of 5 viewpoints to 15+ viewpoints.
Camera Technology:	Industrial-grade Machine Vision camera technology.
Eye-Safe Lighting:	Safe and comfortable subject illumination within visible white light (100% LED lighting) which is necessary for prolonged sessions with subjects – no use of infrared (IR) or near Infrared (NIR) light waves.
3dMD Image(s) Downstream:	Either 1) select the most optimal 3dMD images from the sequence [e.g. foot articulation, heel-strike, fully weighted, etc.] OR 2) import the entire 3dMD image sequence into the downstream third-party/in-house software to transition a project from 2D video, sparse-3D, or static-3D to a dynamic-3D/4D dense-surface mobility paradigm.
Environment:	Utilized in normal R&D lab, clinical, and studio environments.
Safety:	International UL and CE safety certification.
Upgrade Path to:	Any specialized 3dMDfoot System (add 5-10+ viewpoints).
Third-Party Device Synchronization:	For advanced customer teams who qualify, 3dMD offers a range of 3dMDsync Unit options – e.g. Synchronization Output only, Synchronization Output and Input, and Synchronization Output and Input with Frame Level timestamping functionality.
Techniques and Technologies NOT Used by 3dMD:	To confirm, 3dMD does NOT use lasers, depth sensor cameras, pro/consumer cameras, or infrared (IR)/near Infrared (NIR) light waves within its systems. 3dMD does NOT use a ‘structured light’ capture/reconstruction technique.
Technology Description Review Resource Prior to Publication:	If your team is describing 3dMD’s technology for publication, 3dMD is happy to review the section of the copy related to 3dMD and provide input, if needed, to ensure that the technology (only) is described correctly. Please contact review@3dMD.com.

3dMDfoot System Specifications