Photogrammetry can be defined simply as the measurement of the photographs. It is a process that depends, in large measure, the accessible, the placement of the camera around the subject given and the control of light to create high-resolution details of the skin and clothing. The scan can be used to capture data for multiple projects, including face replacements and the characters CG. With so many variables to control, photogrammetry scan can be overwhelming. There is a lot of trial and error involved to achieve the best practices, but with a couple of useful tips, it is very possible to achieve precision and high quality with the process Photogrammetry Scanning Quality.
Tip 1 –
Think about the overlap of coverage. When building your setup, you should use as many cameras as possible, so that you are able to reduce or minimize the manual cleaning later. Insufficient coverage translates into very decent leisure and also rarely miss any information when you use enough cameras manual cleaning is very minimum.
Tip 2 –
Put in measures to minimize the distortions. When there are distortions, is that, given that the system has problems of alignment of the images. The fact is that most of Photogrammetry systems come with a lens, which helps to reduce the images, but it is always a much better option to try to minimize the camera. The use of the tools which match the format of camera that is used to get the best results every time.
Tip 3 –
Mask the background to dramatically improve the overall quality of the generated mesh and post-processing time. It is a process that can take a long time, especially when you need to go through each image, but it’s worth it in the end. If the manual masking is something I would rather avoid, then you can use systems that provide for control of the masking function to obtain a clean background. It also helps to tie the cables together and eliminating any waste of the structure, especially when using the camera rig.
Tip 4 –
Approach to the largest available resolution when it is in operation. You can use as much as needed from the sensor due to more than the resolution that can be achieved, then, the more detailed your mesh will be. Try out each mode of not losing a single pixel if, in fact, can be used for the quality of the services.
Tip 5 –
Remember that lighting is the key to all types of photography. To increase the displayed depth and remove the picture noise, keep the opening small and the ISO as low as you can. But because, by doing so, you will decrease the amount of light that reaches the work, make sure that you have other light sources to replace. Consider the use of a flash over continuous lighting, which are less efficient, less color accuracy and expensive for that matter. Flashes retain the talent comfortable and sufficiently illuminated, the difference of continuous light that can produce heat leaving the closed rig hot.
Tip 6 –
pay attention to the orientation of the photo. It is the factor that plays a very important role in the accuracy of the projects and has to be exact for each position of the camera. Increase the number of well-positioned points to improve the guidance for the quality. These points should take a larger percentage of the picture area.