Which camera should I use for outdoor applications?
We are planning to use one of your cameras in out outdoor UGV application. It will be used for object detection, localization, and live streaming in a city environment. It should be working both day and night. So far I checked D455, D435i , and T265. I couldn'T find some information on your website which will help me to choose between these cameras. Could you please recommend a model? Are there datasheets for these cameras? What is their IP code? Do they work in sunlight? What are their limitations? Do they work on low lux levels?
-
Hi Kgunbay Yes, there are data sheets for the RealSense range at the link below.
https://dev.intelrealsense.com/docs/datasheets
Intel have also published a comparison guide.
https://www.intelrealsense.com/which-device-is-right-for-you/
The type of camera that best meets your needs is the 400 Series (D415, D435, D455, etc). They can be used outdoors, as they contain 'Vision Processor D4' hardware that can adjust the camera automatically to real-time environmental conditions).. They work excellently in sunlight and can operate in low-light (less than 1 lux) or dark conditions. In total dark, you can optionally add an external IR illuminator lamp of your own choice to aid the camera's vision range.
https://github.com/IntelRealSense/librealsense/issues/2000
If you need IP protection, a RealSense partner company called FRAMOS offer a third-party industrial version of the D435 called the FRAMOS D435e that has IP66 rating and can be dropped into water without a protective casing. Please bear in mind though that as it is not an Intel product, FRAMOS rather than Intel provide technical support for it.
https://github.com/IntelRealSense/librealsense/issues/4769
It is fine though to use an official Intel RealSense camera in a protective casing that you provide yourself.
The 400 Series cameras have a depth sensing range of 10 meters, though accuracy on the D415 and D435 models may begin to reduce noticeably after 3 meters. The new D455 model though has 2x the accuracy of the D435 over distance (the same accuracy at 6 meters as the D435 has at 3 meters).
The stereo depth algorithm of the 400 Series cameras have excellent resistance to vibration (such as that which it might encounter when mounted to a vehicle on uneven terrain). If the vibration is severe - like the kind caused by travelling over agricultural terrain - then vibration damping pads could be installed on the camera's mounting point.
If your UGV will be moving quickly (faster than human walking pace) or observing such fast motion, using a D435 or D455 model is recommended, as their depth sensor has a faster shutter (global shutter) than the slower 'rolling' shutter on the D415. The D455 has the added benefit of a fast global shutter on the RGB color sensor for the first time too, helping to avoid blurring when moving fast or observing fast motion.
The T265 does not have depth sensing capability but can be paired with most depth cameras to provide high quality tracking data in conjunction with the benefits of depth sensing.
Please sign in to leave a comment.
Comments
1 comment