20130021438 | 3D VIDEO PROCESSING UNIT - The 3D video processing unit combines video feeds from two unsynchronized video sources, such as left and right video cameras, in real-time, to generate a 3D image for display on a video monitor. The processing unit can also optionally receive video data from a third video source and use that data to generate a background image visible on all or a selected portion or portions of the video monitor. An alpha data generator inspects the video data held within respective buffer circuits associated with the left and right channels and generates an alpha data value for each pixel. These alpha data values are used within an alpha blending mixer to control whether a pixel is displayed or suppressed. Synchronization of the unsynchronized video sources occurs within the processing unit after alpha data values have been generated for each left and right channels. | 01-24-2013 |