TDVision TDVCodec Solution

TDVision stores the 3D stereoscopic perspective in such a way that the Left video stream (2D) is kept intact and stored into the video_data section of the digital video stream. The Right perspective or the "Stereo Disparity" or the "Delta" (option selected at encoding time) is stored at a different section of the video stream, therefore, ignored by the legacy 2D decoders, providing full 2D compatibility.

The TDVCodec has the flexibility to store the full right frame, the Stereo Disparity (SD) or the XOR difference (Delta) on that section to optimize the bandwidth as well as an optimized delta. When received on a TDVision decoder, it will automatically read our identifier and decode the Left frame, retrieve the Right section and provide the stereoscopic decoded info to the respective frame buffer(s) preparing it in any possible way for the display in use (checkerboard, full stereo, side by side) using the HDMI EDID/DDC.

TDVision has overcome all the drawbacks associated with previous 3D technologies:
- TDVCodec is fully compatible with 2D legacy decoders and 3D when TDVision technology is available or implemented.
- By using any of the available 3D options, the video stream can be optimized for quality and/or bandwidth.
- TDVCodec doesn't present any visual artifacts like the Side by Side and the 2D plus depth counterparts (TDVision does not present occlusion, transparency or depth limitations).
- Implementation requires just a modification on the firmware and/or our TDVCodec decoder in software.
- No loss in quality or resolution.
- Provides the best HD quality for both, 3D and 2D formats.

Once a video stream is encoded with TDVision's technology, it can be played back in a normal legacy 2D decoder since the 3D complimentary information will just be discarded at playback time, whereas a new updated decoder will retrieve the 3D information properly.

Depending on the method selected at encoding time, the Right information, Delta information or Stereo Disparity can optimize the bandwidth or the quality, providing up to full HD 3D.

There are no visual artifacts or distortions, since TDVision stores the complete stereoscopic pair and it's reconstructed and decoded as originally captured, no visual artifacts, no detriment, no invented pixels, no occlusion.

Modifying the firmware by adding our decoding method or using our software decoder is all it takes for the end user to achieve full 3D immersive experience everywhere, basically a simple download or firmware update.

TDVision's TDVCodec just requires:
– ENCODING: Encoding of the Left/Right video streams using our TDVCodec is all you need to do to the content.
– DECODING: A TDVCodec Firmware update on the set-top box/DVD/Receiver or our software decoder is all it's needed to decode simultaneously in 3D or in 2D.

On the receiver side, we can have any of the following:
– A legacy 2D hardware decoder (Satellite, cable, DVD player, set top box).
– A TDVision 3D hardware decoder (Firmware updated set-top boxes).
– A 2D software decoder (Windows Media player).
– A 3D software decoder (TDVision's DejaView or AlterSpace both using our TDVCodec).

On the visualization side, the TDVCodec can provide information to:
- 2D Legacy Monitor.
- 3D Checkerboard (for Samsung and Mitsubishi RPTVs).
- 3D stereoscopic cinema projectors or any other 3D display.
- Our TDVisor, the 3D HD 720p portable immersive multipurpose display.

All of them in full 3D HD 720p, 1080p and the best 2D resolution.

You can download the full whitepaper by TDVision for further information.