What is 3D photogrammetry?

PHOTOGRAMETRY is the use of a two -dimensional (2D) image or images such as a photo to allow one to analyze an image to perform accurately measure the size and orientation of the objects in the image in terms of the original three -dimensional (3D) space. The process allows a person to measure the height, width and depth of objects in a photo or a similar 2D image, which can then be used to re -create objects that change in 3D space. For 3D photogrammetry, the application is used to take pictures of objects such as photos, and re -create the original object as a 3D computer model, usually for use in computer animation or similar applications.

This technique is almost as old as the photograph itself and was used with some of the earliest Daguerreotype with pictures. With progress on computers and technologies, however, this process has become easier because computers have managed to manage many technical aspects of photogrammetry and create non -incidence of essentials based on 2D images.This allowed 3D photogrammetry to become more practical and lead to a number of commercial uses for this technology.

3D Photogrammetry is basically a modern application of the original concept. Rather than simply perform calculations to understand the size of the object, for purely mathematical or geometric reasons, measurements are used to create a 3D object model. This can be done for use in ads, movies or many other potential applications. For example, a car's advertising can contain images of a car passing through an untouched environment that seems too perfect for the real world, but too accurate for computer images (CGI).

This is because it is a combination of real and CGI. Rather than creating a 3D model of a car and buildings around it via traditional CGI modeling techniques, 3D photogemes can be used to create incredibly realistic models. The reason is that the computerThe software can take pictures of the car, buildings around it and any other parts of the environment in the figure and perform accurate measurements of each line, angle and object size.

3D Photogrammetry can even be used to create textures for models, so texture mapping is also based on the original photos and creates ultraalistic models and textures. Due to the usually very high number of polygons of models produced by this method with 3D photogrammetry used for applications such as video games, rarely. For realistic applications such as advertising and film special effects, this technique is often ideal for allowing relatively easy creating photorealistic 3D images.