Spheron SceneCam scan setup
Above : SpheronVR SceneCam in situ – controlling laptop and camera battery on floor, behind left seat.
Above :SpheronVR SceneCam in situ. Interior of Lockheed EC-121T
The SpheronVR SceneCam was positioned between the front seats (as with iSTAR test).
As the system scans, operator can easily vacate the shot area (or use the delayed shutter method).
Note, the camera was positioned at the ‘eyeline’ of the pilots, for the most faithful representation of the interior. As will be seen later, the Spheron SceneCam ‘footprint’ is small, which means we can mount camera at a natural viewing height (even that of a person standing).
SpheronVR SceneCam : Available shooting resolutions
The Spheron camera has 4 capture resolutions available to the operator:
Available at capture
- Maximum @ 58.3MP (achieved in camera)
- High @ 14.5 MP
- Medium @ 3.6MP
- Low @ 0.9MP
Resolutions are equatable to EXR outputs of 8K, 4K, 2K and 1K. 4K being the optimal for point cloud colorization.
Available at post-processing stage
At post processing stage, it is possible to increase the original scans by another 300%, given a maximum 168.6 Megapixel output. This is only possible due to the Spheron system using a tri-linear RGB chip, allowing 100% RGB fill-factor and the fact the Spheron scans the scene.
Conventional digital cameras use either CCD or CMOS chips were image is exposed onto a sensor array. The most common Bayer method of RGB channel arraying means there are areas of the image (captured by systems using such chips) missing actual RGB data; requiring interpolation (guessing) to fill in those values…
Up-scaling those types of images merely compounds the guesswork.
Control software options
Spheron SceneCam Easy 2
This case study utilized the SceneCam Easy2 software solution – which is a very intuitive, user friendly interface that walks the camera operator through the capture process.
Key features that I was impressed with were:
- Calibration of system – ensuring optimum performance / capture
- Range of capture resolutions (one does not always need 50 MP image to convey data)
- Robust storage indication
- Robust battery life indication
Above : Screenshot of Spheron SceneCam Easy2 interface. (Windows OS)
Spheron SpheronCam solution
Alternatively, operators who require greater control at capture can use the SpheronCam control system, as below.
Above : Spheron SpheronCam interface (Windows OS)
The SpheronCam inteface allows almost infinite choice of options, to include:
- Shutter Speed
- CCD Sensor calibration
- Delay Start (variable)
- Aperture Control
- Pin Point Focus control – allowing exact specification of area of interest.
- Resolution Control
- White Balance
- ISO control
- Capture Direction
- Scanning control – eg camera rotation / scanning range
- Dynamic adjustment of capture settings (showing changes on preview screen)
- Histogram display
- Over exposure warning / highlighting
- Processing control – including tone-mapping
Next Page : Image Capture (Previews)