Monika Zibolyte & Michal Zu (Bentley) described the use of helmet mounted cameras for photogrammetry during the tech soapbox section of the COMIT community day, held at Bentley's offices in London, 2nd March 2017

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Wearable Photogrammetry
Site Inspection Reality Capture with Helmet Cameras

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Physical world and Digital world Converging…!
Digital EngineeringCapturing Context
Connecting “Virtuality” and Reality
Reality
Modeling

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Can automate the
generation of high-
resolution, fully-3D
representations from digital
photographs
Taken with any camera,
whether embedded in a
smartphone, DSLR, drone
or plane.
ContextCapture

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To integrate reality capture technology with a routine activity (i.e.
Site Inspection) on site, in order to create a “self-regulating” data
capture process.
And apply reality modelling to anything from site safety, inspection to visualisation, training, etc.
Brief

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First Tests

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Test 1
2 cameras:
One on the helmet, another on the
chest

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Test 2
2* cameras:
Both on the helmet
*3rd additional side camera has been used, but data not retrieved

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Further investigations
More tests, different scenarios…

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– A person using the camera-helmet does not know the context behind capturing,
etc. Just walks and does his job.
– Roughly familiar with the survey process thus puts in a bit of effort to capture
the required overlap, etc.
– Fully understands the process and moves in the trajectory needed for proper
image capture while simultaneously doing his job.
Scenarios

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Lessons learned and the feel of carrying several cameras
on the head…