Difference between revisions of "Stereo Vision Systems"

Revision as of 11:36, 5 October 2018

3D Vision System	Elphel MNC393-XCAM	Reviewed competing products
Released	2018	2015-2018
Depth sensing technology		Active IR and projected pattern variations or SLAM variations
Depth range, m	10-5000m	0.1-20m
Depth accuracy	Disparity accuracy is 0.05px: 1% at 100m 5% at 500m 10% at 1000m 20% at 2000m	Some do not have information The assumption is nobody can get below 0.5px disparity Passive systems (no IR), best: 1.5% at 10m 17.5% at 100m Active systems, best (ZiVID): 0.1mm @ 0.6m but the range is 0.6-1.1m HTC VIVE: 5% @ 2m (info by StereoLabs) ZED Mini by StereoLabs: 1% at 1m 9% at 10m
Depth Processing	Post-processing	Post-processing or real-time (mostly)
Number of image sensors	4 (square)	1-2
Stereo baseline, mm	250 (diagonal)	from single lens to 63-250
IR projectors	no	some have, some don't
Framerate	up to 10fps recording in high quality	ZED Mini: varies from 15fps @4k to 100fps @1344x376 Others are somewhat similar
Output interfaces	1 GigE USB2 eSATA (external storage) internal storage (m.2 SSD) Possible to precisely sync multiple systems	some have 1 GigE most - USB3
Position and orientation	GPS Compatible with Analog Devices IMUs: up to 2460Hz	some have IMU (100-500Hz), but most don't
Image sensor shutter type	ERS	ERS or Global
Output format	3D model: OBJ with textures X3D with textures	RGBD Unknown Z-map

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 * Some do not have information
+* The assumption is nobody can get below 0.5px disparity
 * Passive systems (no IR), best:
 ** 1.5% at 10m