The MANAGING Workflow - 3D Postproduction: Stereoscopic Workflows and Techniques - page 41

FOOTAGE &
METADATA

WORKFLOW 1

WORKFLOW 2

WORKFLOW 3

WORKFLOW X

FINAL
DELIVERABLE

Figure 2.2.B How Work Flows - Reality.

A Quick Guide to 3D Imaging Systems,
Compression and Layouts

This topic does not address 3D production. Nevertheless, managing teams need
to be aware of the various capture methods and formats for 3D imagery so
they can develop appropriate post workl ows. Such understanding may also
come in handy when discussing issues with members of the imaging team still
on the project in postproduction. To help us navigate this potentially complex
environment we make the following distinctions:

• Rigs vs. Single-Body Imaging Systems
• Raw vs. Compressed vs. Proxy Imagery
• Discrete vs. Muxed (Multiplexed) Imagery

Remember that regardless of the type of imaging system used we are working
with two streams of 2D images, one L and one R.

Rigs vs. Single-body systems

A rig in a 3D context refers to two or more imagers (i.e., cameras) linked
together by mechanical or electromechanical means. Typically this refers to a
beam splitter or a side-by-side coni guration in which L and R imagers are
housed in a separate units and are linked together to adjust focus, iris, zoom,
convergence and interaxial. Typically these imagers share a common temporal
link such as timecode signal to insure proper L/R synchronization. Rigs capture
imagery either as a video stream containing multiple L and R frames or as a
sequence of individual L and R frames.

( Continued )