TDVision Systems, Inc., was a company that designed products and system architectures for

stereoscopic video coding 3D video coding is one of the processing stages required to manifest stereoscopic content into a home A home, or domicile, is a space used as a permanent or semi-permanent residence for one or more human occupants, and sometimes various ...

stereoscopic video game A stereoscopic video game (also S-3D video game) is a video game which uses stereoscopic technologies to create depth perception for the player by any form of stereo display. Such games should not be confused with video games that use 3D game ...

s, and

head mounted display A head-mounted display (HMD) is a display device, worn on the head or as part of a helmet (see helmet-mounted display for aviation applications), that has a small display optic in front of one (monocular HMD) or each eye ( binocular HMD). HM ...

s. The company was founded by Manuel Gutierrez Novelo and Isidoro Pessah in

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in 2001 and moved to the

United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...

in 2004. The company asserted that there were problems with some 3D deployment technologies, including lack of compatibility with 2D existing

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, side effects due to visual artifacts, and detriment on the quality, color, or resolution of the stereoscopic images. The company designed a

stereoscopic Stereoscopy, also called stereoscopics or stereo imaging, is a technique for creating or enhancing the illusion of depth in an image by means of stereopsis for binocular vision. The word ''stereoscopy'' derives . Any stereoscopic image is ...

system that it claimed can reduce some of these side effects by providing full HD left and right images to each eye rather than using interpolation or pixel sub-sampled images. This included a

codec A codec is a computer hardware or software component that encodes or decodes a data stream or signal. ''Codec'' is a portmanteau of coder/decoder. In electronic communications, an endec is a device that acts as both an encoder and a decoder o ...

called TDVCodec AKA 2D+Delta unveiled in 2007, designed to work with current hardware, such as Blu-ray discs, DVDs, set top boxes, and satellite receivers. The 2D+Delta method is similar to that used in the MPEG-2 Multiview profile and the more recent MVC (Multiview Video Coding) standard. Other TDVision products included the first consumer electronics stereoscopic 3D full HD video camera called TDVCam in 2006 and a

head-mounted display A head-mounted display (HMD) is a display device, worn on the head or as part of a helmet (see helmet-mounted display for aviation applications), that has a small display optic in front of one (monocular HMD) or each eye (binocular vision, bi ...

for 3D stereoscopic full HD 720p video viewing Head Mounted Display device called TDVisor in 2007.

Products

TDVisor

TDVisor is a

for stereoscopic 3D video viewing. In 2007, it was supported in a

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system called RainStorm., and many other training, remote controlled operations, surveillance, unmanned vehicles, educational and immersive video gaming applications.

TDVCodec

TDVision developed and patented worldwide the

2D+Delta D, or d, is the fourth letter of the Latin alphabet, used in the modern English alphabet, the alphabets of other western European languages and others worldwide. Its name in English is ''dee'' (pronounced ), plural ''dees''. History T ...

method of

Stereoscopic Video Coding 3D video coding is one of the processing stages required to manifest stereoscopic content into a home A home, or domicile, is a space used as a permanent or semi-permanent residence for one or more human occupants, and sometimes various ...

for an encoding and decoding method in 2003, also called the TDVCodec. Key features of the encoding format include up to Full HD (1920x1080) per-eye stereoscopic resolution, and 2D backwards compatibility with existing televisions and

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Satellite Television Satellite television is a service that delivers television programming to viewers by relaying it from a communications satellite orbiting the Earth directly to the viewer's location.ITU Radio Regulations, Section IV. Radio Stations and Systems ...

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, ATSC decoders and PC based systems. The first demonstration of a full HD 3D Blu-ray Disc running on

and compatible with 2D legacy players in the world was made by TDVision in April 2008 during the National Association of Broadcasters (NAB) Trade Show in Las Vegas, Nevada, as recorded on the press release ''Stereoscopic 3D Content at Home, Brought to You By TDVision's TDVCodec'' and then mentioned on the article ''3D Blu-ray Closer to Reality'' in May 2008. The company was then listed as key ''IP holder on the MVC standard on the ISO JTC Patent Database'' and the initiative evolved to what is now known as the selected spec of the Blu-ray Disc Association as mentioned in the article Final 3-D Blu-ray Specification Announced where all the characteristics of the 2D+Delta method were confirmed: ''"The Blu-ray 3D specification calls for encoding 3-D video using the Multiview Video Coding (MVC) codec, an extension to the ITU-T H.264 Advanced Video Coding (AVC) codec currently supported by all Blu-ray Disc players. MPEG4-MVC compresses both left and right eye views with a typical 50% overhead compared to equivalent 2-D content, and can provide full 1080p resolution backward compatibility with current 2-D Blu-ray Disc players."''

Comparison of the 2D+Delta method to other technologies

Some other 3-D formats like pixel sub-sampling (side-by-side or over-under or checkerboard, quincunx) require interpolation filters and antialiasing to reconstruct the views. The TDVCodec is said to provide Full HD 3D continuous video streams to the viewer. Frame Sequential: Frames alternating at 120 Hz effectively displaying full HD per eye sequentially Dual Input: Cinema Projectors and HMDs Horizontal Interleaved: DLP based displays Checkerboard (pixel) interlaced: Micropol Xpol

LCD shutter glasses An active shutter 3D system (a.k.a. alternate frame sequencing, alternate image, AI, alternating field, field sequential or eclipse method) is a technique for displaying stereoscopic 3D images. It works by only presenting the image intended for ...

Other methods include

autostereoscopy Autostereoscopy is any method of displaying stereoscopic images (adding binocular perception of 3D depth) without the use of special headgear, glasses, something that affects vision, or anything for eyes on the part of the viewer. Because head ...

holography Holography is a technique that allows a wavefront to be recorded and later reconstructed. It is best known as a method of generating three-dimensional images, and has a wide range of other uses, including data storage, microscopy, and interfe ...

, and

polarization Polarization or polarisation may refer to: Mathematics *Polarization of an Abelian variety, in the mathematics of complex manifolds *Polarization of an algebraic form, a technique for expressing a homogeneous polynomial in a simpler fashion by ...

methods using horizontal and vertical or

circular polarization In electrodynamics, circular polarization of an electromagnetic wave is a polarization state in which, at each point, the electromagnetic field of the wave has a constant magnitude and is rotating at a constant rate in a plane perpendicular to ...

Mergers and acquisitions

In 2014 the HMD division of TDVision was spun off into a company called ImmersiON. In 2014 ImmersiON acquired the Spanish VR company VRelia and became ImmersiON-VRelia.

References

External links

TDVision company website
{{DEFAULTSORT:Tdvision Stereoscopy