![]() ![]() ![]() It keeps its wellknown 3D reconstruction workflow, from Structure from Motion step up to the texture generation. the action you described, to pick the distance in 3D, is by nature not accurate and won't allow you to measure the accuracy of the rescaling operation (as you will do it only on two points, and thus, you won't be able to compare it to other control distances and calculate the residuals) and is generally used where accuracy is not a big problem (e.g. 3Dflow has recently released the longawaited Lite version of Zephyr. by using a total station) then you can also use that information to drive the reconstruction in the SfM stage, which will act and potentially change/aid the camera calibration If you have the 3D coordinate of your control points (e.g. Note that scaling using control distances is a rigid scaling, so you will not change any camera position at all. Tutorial on control points and distances is available here : This is the preferred way and the most accurate way using control distances, available in zephyr Pro and Aerial only. Then, add them as control distances, and use the scale world using control distances function. the height of a door) and pick those points in 2D from the images to create the control points in zephyr. ![]() the first one is to place control points in your scene (which can be with markers you measured, or any other known distance in the scene, e.g. The obtained solution is in all probability the most accurate, completely automatic, best engineered multiview-stereo algorithm available on the market.What you described is rescaling via control distances. Here in 3Dflow, we worked hard to build up both the core technologies and the user interface. Furthermore, 3DF Zephyr has a lot of advances functionalities, and you can, for example, edit your models, create true orthophotos, digital elevation models (DTM), manage laser scan data and calculate areas, volumes, angles, contour lines, and much more. 3DF Zephyr is built on top of our proprietary, cutting-edge, reconstruction technology.ģDF Zephyr comes with a user-friendly interface, and the possibility to export in many common 3D formats or even to generate lossless video without the need for external tools. The process is entirely automatic, and no coded targets, manual editing or special equipment are needed. 3DF Zephyr allows you to reconstruct 3D models from photos automatically. ![]()
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