A system for controlling a display of image data is presented including a first imaging unit for capturing a first set of images and a second imaging unit for capturing a second set of images. The system also includes a display unit configured to display the image data in a picture-in-picture mode, such that the display unit displays the first set of images in a first panel having a first size and the second set of images in a second panel having a second size, where the first size is greater than the second size.