02.04 Photogrammetry

Photogrammetry software uses multiple 2D images takes from different yet overlapping angles to create a 3D mesh with textures. To achieve the highest detail and most accurate 3D model from the real world, 3D scanning is recommended.

Photogrammetry Best Practices

• Keep the object in focus. Ensure that the aperture of your camera is small enough to have a wide depth of field. A high F-stop such as F-22, which has a small aperture, will give a deep depth of field.
• Use a high shutter speed.
• Refer to basic camera settings for more information about setting up a camera for photogrammetry.
• Add multiple scale references. Lay down rulers, markers and other scale calibration devices near the object or location to scan. Make sure to capture the scale devices in detail so they can be used to tell the software what the real world scale and dimensions are. It is best to use long scale distances to improve accuracy. If you lay down a 2 meter measuring stick, then use the full 2 meters to set scale, rather than just a few millimeters or centimeters, even if the object is small.

Photogrammetry Tutorials

Photogrammetry Software

• Photogrammetry with Adobe Substance Sampler - needs a folder of images
• Photogrammetry with Photocatch - works with a video or a folder of images

Exporting Frames from Video for Photogrammetry

• Export Video Frames with Adobe Media Encoder
• Export Image Sequence from Adobe Premiere
• Export only Keyframes with ffmpeg Video Tutorial
• Export Frames from Video as Images with ffmpeg

Working with Photogrammetry Created 3D Meshes

• Calibrate Photogrammetry Scanned Object Scale in Blender
• Place 3D Models in 2d Photos with Blender