A stereoscopic shooting apparatus is described which comprises shooting means (10a, 10b) for taking a stereoscopic shot, which means are adapted to provide a pair of stereoscopic images comprising a right image and a left image, wherein said shooting apparatus comprises: a computation block (12) receiving at its input said pair of stereoscopic images from said shooting means (10a, 10b); a normalization and quantization block (14) subjecting the values of said parameter computed in said computation block (12) to normalization, and preferably also to quantization; association means (16) adapted to associate graphic information with said parameter; an overlay block (18) overlaying said graphic information on said pair of stereoscopic images and outputting said overlaid images to visualization means (22); visualization means (22) for displaying said graphic information through an image overlaid on at least one image of said pair of stereoscopic images, thus forming a composite image.