Technology sharing|MIG-CL9000 splicer 3D implementation
Compared with the previous one, the 3D method described in this article also uses active shutter 3D technology. The difference is that the computer output of the 3D video source is played, the output of the video processing device is 60Hz, and finally the 3D transmission card is used. Up to 120Hz to the LED screen, this solution is mainly used in conjunction with the current 3D transmission card on the market.
Assume that the resolution of the led display is 1920×1080, and do a full-screen point-to-point 3D display. In the normal 2D mode, a 4 network port transmission card can carry the pixel, but in the 3D mode, the transmission card has to be multiplied. The load capacity is halved to 960×1080, so the display has a total of 2 3D transmission cards. The system connection diagram is as follows:
First, the point-to-point 3D video source: a single video source is divided into two left and right images, one left eye and one right eye; the left and right eye resolutions are all 1920×1080; the playback computer can select dual DVI mosaic output or DP to 3840 × 1080 × 60 Hz. (If you don't do point-to-point, the video source is 1920×1080, you can zoom in and display)
Secondly, the processing method of the video splicer: it is necessary to synthesize images of different positions in the video source into different DVI outputs to the sending card.
Finally, each 3D sending card will display the images received by the left and right eye frames alternately on the LED screen. At the same time, the infrared signal transmitter will synchronously control the left and right lens switches of the shutter type 3D glasses to present 3D. Stereo vision.
The requirements of the 3D solution for the video splicer are:
1. Input, output, and internal processing all require strict 60Hz. After the 3D transmission card is multiplied to 120Hz, there will be no frame loss. This is in line with the features of the CL9000 splicer's full-channel 60Hz processing.
2. It can perform multiple interception of images at different positions of the same signal source, which is the ZOOM function of the CL9000 splicer, especially when the size of the pixels of the multiple transmission cards is inconsistent, this function is particularly important.
3, multi-preset switching, convenient 3D mode and 2D mode one-button seamless switching and multi-window application in 2D mode (send card also needs to switch the corresponding mode).