be used for recording the video while the pan amp scan may be used for display by having multiple viewpoints a perfect stitch may be possible however at the overlapping region double or missing images may result the problem may be more serious for near objects than distant objects for surveillance application which has mostly distant objects the problems may be reduced for close up applications such as for example video conferencing three cameras may be used so that the centre camera has the full picture of the human head and shoulder each camera should preferably send thirty frames each second for real time stereoscopy the virtual camera may perform the stereoscopic image formation such as for example by interlacing odd and even rows and stacking the images for a top to bottom stereoscopy for post processing of video the virtual camera may be used to combine or merge video from different cameras and it may be used for the generation of lenticular stereoscopic image video the virtual camera 32 is able to convert multiple video streams into a single stream in a stereo format by performing interlacing resizing and translation resizing is preferably performed with proper filtering such as for example u201c cubic u201d and u201c lanczos u201d interpolations for upsizing and u201c box u201d or u201c area filter u201d for downsizing row interlace stereoscopy format interlaces the stereo pair with odd rows representing the left eye and even rows representing the right eye this can be viewed using de multiplexing equipment such as for example u201c stereographic 39 s simuleyes u201d and that is compatible with standard video signals the.