Effective Use of Digital Video for Subsea IRM

everything remotely possible

Effective Use of

Digital Video for Subsea IRM


Bill Parker-Jervis

VisualSoft Technical Manager


Use of Digital Video

Digital Video offshore is not new...

…and VisualSoft is not new

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• 12 years

• Well over 1000 licenses

• Well over 100 companies

• Over 30 countries


SD Video Standards

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Picture Resolution and Frame Rate

PAL 704 x 576 25 frames per second

NTSC 640 x 480 30 frames per second

Analogue standards, not digital, but a useful shorthand.


Bitrates and Quality

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More data means better quality:

High bitrates generally mean better quality video…

…Low bitrates mean more compression so lower quality

No exact comparison because CODEC efficiencies differ.

WMV Most commonly being used at 4 Mbps

MPEG-2 Most commonly being used at 6 Mbps


Video Resolutions

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PAL: 704 x 576


Video Resolutions

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PAL: 704 x 576

HD 720: 1280 x 720


Video Resolutions

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PAL: 704 x 576

HD 720: 1280 x 720

HD 1080: 1920 x 1080


Resolutions, Bitrates & CODECs

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PAL: 704 x 576

HD 720: 1280 x 720

HD 1080: 1920 x 1080

Has usually been encoded as

WMV or MPEG-2, at 4 to 6 megabits per second

With H.264, we can use 5 megabits per second

With H.264 we can use

10 megabits per second, and possibly even lower


Video Stills from Full HD 1080p

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Looking further ahead…

3D: More questions than answers?

• How many cameras?

• How are we going to watch it?

• Do we also need 2D recordings?

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Looking further ahead…

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• Increasing use of AUVs for pipeline survey

• Increasing use of video streaming to shore

• Increasing use of video streaming on ships

All of these indicate a need for ever better video

compression.

For now we have H.264, soon we’ll have H.265,

and no doubt more to follow.


Camera views

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More and better data

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Overlay, online and offline

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Subsea 2013


Data structure and access

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QC

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Pipeline History

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Year 1

Year 1

Year 2

Year 2


Structure History

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ArcGIS plus VisualGIS

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Effective Use of


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“Effective Use” requires flexibility:

What is effective for one task may not be effective

for another.

• Multiple formats (WMV, MPG-2, H.264)

• Multiple resolutions (PAL SD, HD 720, HD 1080)

• Multiple bitrates and qualities


Effective Use of


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“Flexibility” should not mean “Complexity”:

Changes and improvements should not cause

undue confusion and complexity.

• Configuration should be guided and “educated”

• If things can be automated they should be


Effective Use of


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Flexibility requires cooperation – we can’t exist in

isolation, even if sometimes we’d like to.

Application Programming Interface (API)

• Open API commands to stop or start recording

• Open API commands for file names and locations

• Open API command for still images & video clips

• Open API commands for playback control


Effective Use of


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“Effective Use” requires:

Flexible methods

Flexible configurations

Flexibility without complexity

Flexibility through cooperation


VisualSoft Suite

Visit us at stand B56

Effective Use of Digital Video for Subsea IRM

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