In recent recent the creation of 3d human models have evolved to a point where photorealistic models of people are sought after by software engineers, game developers, visual effects artist and even the e-commerce industry.
Nowadays it’s possible to create 3D human models using several technologies for 3D human scanning, each with strengths and weaknesses. The production process in all of them starts with scanning real people and then processing the raw data. The best technology for 3D human scanning depends on the specific use case and requirements. Here are some standard technologies used for 3D human scanning:
Structured Light Scanning
This technology uses a projector to project a pattern of light onto the subject, and a camera captures the reflection of the pattern. The software then analyzes the distortion of the pattern to create a 3D model. Structured light scanning is fast and accurate, making it a popular choice for scanning human faces and bodies.
Time-of-Flight (TOF) Scanning
TOF scanners use infrared light to measure the time it takes for the light to bounce back from the subject. The software then uses this data to create a 3D model. TOF scanning is fast and can capture large areas quickly, making it suitable for full-body scans.
Laser scanners use a laser to create a 3D model of the subject. The laser scans the subject from different angles, and the software uses the data to create a 3D model. Laser scanning is accurate and can capture fine details, making it suitable for producing high-quality human face and body models.
Creating 3D Human Models with Photogrammetry
Creating 3D human models using photogrammetry involves capturing a series of photographs of a person from different angles. The photographs are then processed using photogrammetry software to create a 3D model of the person.
Photogrammetry involves capturing photographs of a person while they remain stationary. This is typically done using a rig that holds the camera fixed while the person is photographed from different angles.
Photogrammetry has several advantages over traditional methods of creating 3D models. These include:
Cost-effective: Photogrammetry is a cost-effective way to create 3D models. It requires only a camera and photogrammetry software.
Non-invasive: Photogrammetry is a non-invasive method of creating 3D models. It does not require any contact with the object being modelled.
Accurate: Photogrammetry can create highly accurate 3D models. The accuracy of the models depends on the number of photographs taken and the quality of the photogrammetry software.
Fast: Photogrammetry can create 3D models quickly. It only takes a few hours to create a 3D model of a person using photogrammetry.
Applications of 3D Human Models
By now you’re probably thinking “What’s this all about?”. There are several applications of 3D human models created using photogrammetry. Some of these applications include:
Entertainment: 3D human models are used extensively in the entertainment industry for creating digital characters. These characters can be used in movies, video games, and virtual reality experiences.
Medicine: 3D human models are used in the medical field for various purposes, such as surgical planning and training. They can also be used to create prosthetics and orthotics.
Fashion: 3D human models are used in the fashion industry for creating digital clothing designs. This allows designers to see how their plans will look on a real person before creating physical prototypes.
Anthropology: 3D human models can be used in anthropology to study human anatomy and evolution. They can also be used to create replicas of fossils.
But let’s go back to where we started – what is the best technology for 3d human scanning? The truth is that it really depends on the specific use case and the different requirements you have. Structured light scanning and TOF scanning are suitable for fast and accurate full-body scans, while photogrammetry and laser scanning are better suited for capturing fine details in human faces and bodies.