WebGL Pix4d Potree

The system, implemented by our app and website development company, is designed to convert photos of TV towers taken from the drone into a 3D point cloud to inspect the state of the tower structure




Point cloud converter and inspector

A platform for converting and displaying 3D reconstructions made using conventional photos that were taken on a drone, and all together they formed a 3D model. The pix4d program allows you to simultaneously process and combine thousands of photos taken from different angles, and automatically create topographic maps and 3D terrain models. You can get in touch with our custom software consulting to get more information.

  • 0001

    Information about each photo is recorded in an EXIF ​​file: at what height it was taken, at what angle the camera was rotated, and what data is longitude and latitude. The program uses machine vision and photogrammetry technology to find common points in many photographs.

  • 0002

    Every match becomes a key point. If the key point is found in three photographs or more, the program builds this point in space. The more key points, the easier it is to determine the coordinates of a point in space. From here follows the main rule – to maintain a large intersection between photos.

  • 0003

    The spatial coordinates of each point are calculated by the method of triangulation: a line of sight or ray is automatically drawn from each survey point to the selected point, and their intersection gives the desired value.

  • 0004

    The collection of all 3D points is called a point cloud. During the photo processing, an expanded cloud of points is created, which is used to generate a surface composed of triangles (polygons, meshes). The last step is to calculate the resolution (pixel size) and which pixel in the photo corresponds to which mesh.



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