intel realsense 435i and 3d design
I'm very new to Realsense and was wondering if the 435 series would work to create 3d images of people legs in order to manufacture riding boots. The idea is to get an image that can be 3d printed to use as a mould for the manufacturing of the boots. Could the images taken from these cameras be used to get the accurate actual measures of the leg and foot? What software do you recommend for this purpose, (Sketchup, Artec, Modo or other)?
Any help is welcome and many thanks for your help
Hi Real Carlos In 2018 there was a query (in the link below) about using RealSense for scanning heads to create individual custom moulds for riding helmets for disabled persons. That case should be a helpful reference.
The customer in that case was using a RealSense R200 stereo depth camera, the predecessor of the D435 / D435i camera models. A D435 or D435i would also be well suited to your planned application.
A solution that may fit your needs would be to use a free program called Kinfu (KinectFusion) with a single camera, moving that camera around the leg and foot and progressively building up a 360 degree 3D point cloud scan. When you are satisifed with the level of detail, you can export the point cloud as a .ply format pointcloud file that can then be imported into 3D modelling software tools that support ply file import.
A commercial single-camera 3D scanning tool that is suited to close-range 3D model scanning is LIPScan 3D Desktop. This tool requires a RealSense D415 camera model, so the camera would have to be placed at least 30 cm / 0.3 meters from the leg as the D415 has a larger minimum depth sensing distance (0.3 m) than the D435 and D435i models (10 cm / 0.1 m).
Typically, objects scanned with LIPScan are small ones that are rotated on a turntable to generate a 3D model. You may be able to replicate this with a human if the person turns around on their heel on the spot whilst the camera is scanning.
If your project is able to make use of multiple RealSense cameras then another option may be to use the RealSense-compatible commercial 3D scanning tool RecFusion Pro which supports multiple RealSense cameras and place the cameras in an inward-facing circle around the leg. The need to position the cameras closely around the leg whilst keeping the other leg out of the view of the cameras may make this impractical though.
If taking measurements of the leg is vital to your project then you could use the 3D pointcloud mode of Intel's free official RealSense Viewer tool, which has a built-in point to point 3D measuring mode that can measure between two or more selected coordinates. You could then export a ply file from the tool, making an individual scan for each side of the leg / foot, and then stitching the multiple ply files together into a single large 360 degree point cloud.
A professional measuring and comparison solution may be to use Artec Studio in combination with SOLIDWORKS, as described in the link below.
Please sign in to leave a comment.