Forum Discussion
New ContributorWhat is the accuracy of the RealSense D435i?
Hello everyone.
I'd like to use the D435i to capture a point cloud/3D Map of an object. The distance between camrea and object would be between 100-1000mm.
What is the best/worst distance between the captured points? What dependencies are relevant in this context?
Best regard,
Imran
9 Replies
MartyGThe depth accuracy of the 400 Series cameras is less than one percent of the distance from the object. So if the camera is 1 meter from the object, the expected accuracy is between 2.5 mm to 5 mm.
There are numerous environmental factors that can have an impact on accuracy. Also, in regard to technical factors, the 'RMS error' in the depth readings will increase as the distance from the object increases. It only becomes really noticeable at around the 3 m point though, so you should not experience much accuracy drift if using a distance between 100 and 1000 mm.
Pages 13 and 14 of Intel's excellent illustrated tuning guide provide information and charts about the camera's RMS error factor.
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Please also note that the RealSense forum has moved location, so future questions should be posted at the new forum linked to below. Thanks!
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hien_vuHi @MartyG,
I work for logistic company, we have a project measure dimensions small objects like USB, lipsticks, ... please see my attachment.
Follow this topic: https://github.com/IntelRealSense/librealsense/tree/master/wrappers/python/examples/box_dimensioner_multicam I have clone and run successfully, but we have a problem, with 2 cameras model D435i I have detected dimensions with not high accuracy. The dimensions which receives from 2 D435i are Length x Width x Height 1.7 x 7.3 x 2.1 (cm) , but real dimension are 1.5 x 7 x 1.5.
the distance from cameras to chessboard is 40 cm.
Kindly give me a advise to improve the result because our boss need more accuracy.
Thank you so much.
