Capture and Processing - 3DTV: Processing and Transmission of 3D Video Signals - page 44

BX3 -
21 st Century 3D
(USA)

- Can hold heavy cameras
- Two different mounting modes
- Polarization filter to avoid unbalanced reflections
on both camera lenses

- Not sold, but hired with specialized camera crew
- Initially produced for underwater video shooting
- Initial product to support only side-by-side
configuration - technical restrictions
- Later top-bottom configuration support was
added using mirror beam split technology

Cameron-Pace-rig -
Pace HD
(USA)

- Mirror rig to hold relatively lightweight camera pairs
- upside-down type mounting of the second
camera to prevent CMOS-Sync problems
- Primary use on the shoulder with Steadycam
- Made with patented carbon fibre technology

Freestyle rig -
P

S Technik
(Germany)

+

- Side-by-side configuration and mirror-rig
configurations available
- Major advantages is in providing an automation
facility (both manual and electronic)
- Stereo-aware analysis software allows camera
parameters to be changed

TS-2 & TS-4 -
3ality Digital
(USA)

Mini rig -
Stereotec
(Germany)

- Side-by-side configuration
- Flexibility of usage (in hand, on the shoulder,
with Steadycam)
- Small-scale cameras, including DSLR cameras
- Up to 12 cm adjustable baseline

- Univeral design to hold any type camera
- Stable construction, easy camera mounting and
lightweight design using carbon fibre
- upside-down type mounting for the second
camera
- Motorization support for remote control operation
(e.g. stereo baseline and convergence)

SwissRig -
SwissRig
(Switzerland)

Figure 2.4 Some off-the-shelf stereoscopic 3D rig products

of commercial/specialized stereoscopic video capture rigs by stereoscopic
camera manufacturers and their representative pictures.

2.2.2.1 Key Requirements of Stereoscopic
Video Capture Systems

Creating a stereoscopic video content, as mentioned, is not as easy as just
capturing two time-synchronized 2D video sequences with an approximate
eye-distance between each camera. Previous experience has shown that the
improper adjustment of many parameters that are involved in stereoscopic
video acquisition may lead to unacceptably poor 3D video quality that causes
eyestrain and headache [3].
Among the most basic two parameters of any stereoscopic video capture rig
is the adjustment of the inter-axial distance and the amount of convergence
introduced between the cameras. It should be noted that 3D visualization is
an illusion of creating the feeling of the real 3D scene on the screen plane.
Thus, every 3D video object should be exposed to the viewers within the