Why shoot nine images, filling up the frame at different angles per shot, when I can shoot one image with the chart filling up the entire frame at once?
Lens Profile Creator employs the state-of-the-art multi-view image geometry algorithm to estimate all the camera model parameters, such as the principal point (image center), focal length, and distortion parameters. It requires a minimum of three images of the checkerboard. We recommend shooting nine images instead of the minimum three because it would permit the use of a smaller checkerboard to sample data points closer to the edges of the image frame where the lens aberration are typically more pronounced, and provide fallback images if for some reason the Lens Profile Creator fails to process all the images successfully. In general, additional images will improve the robustness and the accuracy of the camera model parameter estimates. The multi-view image calibration setup utilized by the Lens Profile Creator also eliminates the need of an expensive and controlled studio setup, making the technology more accessible to ordinary photographers. In this new setup, the camera and the cal
