A foot 3D scanner mainly adopts the principle of laser scanning to scan and measure the human foot. It can obtain more than 60 foot data items, with a measurement report as well as 3D data.
Advantages of the laser principle in foot 3D scanners:

1. High precision.
Laser scanning has relatively high precision, which can reach 0.5 mm.
It can scan complex curved surfaces, such as the instep, arch, and gaps between toes.
If it is a foot mirror, the precision is relatively rough, usually several centimeters, while laser scanning is many times more precise.
2. Ability to quickly build models.
It usually only takes 10–20 seconds to complete the foot scan and generate a 3D data model.
With high precision, it can collect dense point cloud data, making the acquired data more detailed and comprehensive.
3. Non-contact scanning.
During the scanning process, there is no need to touch the skin, which can avoid the occurrence of cross-infection.
This kind of non-contact scanning can also avoid errors caused by skin deformation due to contact.
For children, the elderly, and people with foot wounds, such non-contact scanning is the optimal solution, and it also makes us feel more assured when conducting measurements.
4. Ability to measure complex surfaces.
It can measure complex curved surfaces such as toes, instep, and arch.
Laser can also penetrate part of the hair and light-colored socks, so the acquired data is more detailed and comprehensive. It can also reduce some data loss and scan the “blind spots” of the foot.
5. High stability and not easily interfered with.
Laser scanning has relatively high stability. Compared with structured light and photographic methods, laser scanning has higher stability in bright and outdoor environments.