Patent ID: 9039194
Filing Date: 2015-05-26
Classification: G03B,H04N

Abstract:
1. A method for controlling at least one video projector in a video projection system comprising multiple video projectors amongst which is the at least one video projector, each of the video projectors of the video projection system having a modifiable focal length and being adapted to project sub-images of the images to be projected by the video projection system, the method comprising: determining at least one first calibration parameter associated with a first predetermined focal length of the video projectors; computing at least one second calibration parameter corresponding to a second predetermined focal length of the video projectors, the at least one second calibration parameter being computed as a function of the at least one first calibration parameter, the second predetermined focal length being different from the first predetermined focal length; computing at least one display parameter for at least the at least one video projector, the at least one display parameter being computed as a function of the at least one second calibration parameter; and calculating at least one sub-image to be projected by the at least one video projector, according to the at least one computed display parameter.