Difference between revisions of "Eyesis4Pi 393"
From ElphelWiki
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We have developed full calibration process and post-processing software to compensate for: | We have developed full calibration process and post-processing software to compensate for: | ||
* '''Optical aberrations''', allowing to preserve full sensor resolution over the camera FoV. | * '''Optical aberrations''', allowing to preserve full sensor resolution over the camera FoV. | ||
| − | * '''Distortions''' – for precise pixel-mapping for photogrammetry and 3D reconstruction. | + | * '''Distortions''' – for precise pixel-mapping for photogrammetry and 3D reconstruction. |
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| + | The [[Eyesis4Pi_Calibration|calibration]] is performed using the machine ('''goniometer''') that rotates the camera about 2 axes (y & z on the drawing) by precisely known angles. To calibrate IMU one needs to match the goniometer angles with the IMU data. | ||
| + | |||
Check out this [http://blogs.elphel.com/2010/06/elphel-eyesis-camera-optics-and-lens-focus-adjustment/ Elphel Development Blog post] for more details. | Check out this [http://blogs.elphel.com/2010/06/elphel-eyesis-camera-optics-and-lens-focus-adjustment/ Elphel Development Blog post] for more details. | ||
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|[[File:Eyesis4pi393 calibration resized.jpeg|450px|thumb| Calibration process]] | |[[File:Eyesis4pi393 calibration resized.jpeg|450px|thumb| Calibration process]] | ||
|[[File:Eyesis4pi393 calibration closer resized.jpeg|200px|thumb]] | |[[File:Eyesis4pi393 calibration closer resized.jpeg|200px|thumb]] | ||
| + | |[[File:Eyesis-with-cradle-pattern_small_2.jpeg|340px|thumb| Calibration process drawing]] | ||
|} | |} | ||
Revision as of 09:53, 22 December 2016
Contents
Status
Available
Overview
Elphel Eyesis4Pi-26-393 is the newer generation of the full-sphere multi-camera systems for stereophotogrammetric applications.
Automated panoramic imagery and 3-dimensional panoramas are the 2 main applications of Eyesise4Pi-393 camera. * Car and backpack mounts are not included. Improvements over older generation Eyesis4Pi
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Features
- 4*π (360x180) full sphere coverage
- 64 MPix panoramic image resolution after stitching
- Final panoramic image equirectangular projection dimensions - 14000x7000
- 0.05 Pix stitching precision
- Calibrated fixed lens to compensate for the lenses distortions
- 10" (0.1 pix) in the center 80% x 80% area
- 30" (0.3 pix) maximal error over the full FoV
- <0.03um/° thermal expansion
- 5 FPS - maximum frame rate
- Integrated high-precision IMU and GPS
- Recording to:
- internal SSDs
- external SSDs
- a PC over network
- Web Based GUI
- Free Software and Open Hardware
Calibration
We have developed full calibration process and post-processing software to compensate for:
- Optical aberrations, allowing to preserve full sensor resolution over the camera FoV.
- Distortions – for precise pixel-mapping for photogrammetry and 3D reconstruction.
The calibration is performed using the machine (goniometer) that rotates the camera about 2 axes (y & z on the drawing) by precisely known angles. To calibrate IMU one needs to match the goniometer angles with the IMU data.
Check out this Elphel Development Blog post for more details.
3D Model
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