3.02.01 – Case Study 01 – Aircraft interior scan : NCTech iSTAR : Post Processed Image analysis

NCTech iSTAR Post Processed Image AnalysisAbove : Captured images as ‘post-processed’ using NCTech’s Immersive Studio software. (Original 10,000 x 5,000 pixels, resized to 1000 pixels wide)

Processing turns the raw data into an automatically stitched, exposure balanced image, exported as a JPEG format image.

  • Take note of the ‘footprint’ area (highlighted by red outline in image BELOW), which designates areas of the scene uncaptured by the camera.
  • This is a significant proportion of the 50 mega pixel resolution image captured.
  • Raising the camera higher, eg to eye-line does not increase ‘footprint’ area within the image, however it will mean the uncaptured area underneath the camera increases in diameter.

20160322-220433_Preview@1000px_Footprint_Outline

iSTAR Fusion Image Analysis

  • Total Image = 50,000,000 pixels
  • Footprint = 11,494,251 pixels (contained with red outlined area above)
  • Effective (usable pixels) = 38,505,749 pixels (77%)
  • The iSTAR is pretty in-efficient in its data capture, wasting approx 23% of potential data to the systems footprint. Mounting the system lower will improve the systems coverage of data at the nadir, but will then provide an unrealistic ‘perspective’ of the environment.
  • Therefore, your choice is simple:
    • set camera at human ‘eyeline’ and accept the large void of uncaptured data at nadir.
    • mount camera lower and see the world as if you are sat on the floor.

Next Page : Immersive Viewing of Processed images

Banner Image : iSTAR capture