Distance detection with Depth Camera (Intel Realsense d435i) - Opencv with Python tutorial

In this video tutorial, we will see how to detect the distance using the Intel Realsense d435I camera.

The tutorial will be divided in two steps:
1. Get the frames from the depth camera
2. Distance detection on mouseover

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[nguyenmanhtuan]

A great video. Hope to see your tutorials on how to work with point cloud from Depth Camera.

[FernandaZ-uc]

I get it succeed by following this video you presented, it is super helpful. Thanks a lot ！:)

[mediocre]

Could you please explain about the IMU in the intel realsense?
How to get the values using python? How to calibrate the IMU?

[ycdcherokee]

you should better normalize the depth image between 0-255 for a better vision.

[dafech_]

Hi Sergio. Thank you for your video. I have a question for you. Currently I don't have acces to the camera, but would be the case if we go out of the 2 meters value? Which value would I get? The maximum value, a random distance, 0, null-value?

Also I wanted to remark the the link that you provided for the codes is no longer available.

Thank you again for your great job explaining this.

[alexisgomezhernandez]

Thanks so much!! I have a video from Intelreal sense that Im trying to get the distance to the camera. However, the video I have is different than yours. It is a color video; thus, I get an array distance. How could I get the distance in mm that way?

[MikeNewham]

Great tuition. Good command of English.. Have Pixy2 camera here - so am on the lookout for scripts for that..

[granatapfel]

Combined with a bounding box it's a powerful detection with class and distance

[mk-xxvj]

Hi dear Sergio, Firstly tank you for everything. Can we measure the width and height of these objects at the same time?

[quentinjames]

More about filtering for more accurate readings please!

[aymenbenammar]

Impressive work! can I use my phone's camera as depth camera ?

[giorcks]

i think you shoudl have aligned the depth information with the RGB camera

[YazeedAlkosai]

great video, how to measure the depth of the holes of the objects is it possible to use this camera to get precise holes diameter. thanks in advance

[LINZ]

@ 12:46 to "filter" out zeros i added >> if distance == 0: continue

[christopherpalazzo]

This is great, but arent the depth and RGB image not aligned. Won't this will lead to incorrect readings? Thanks!

[autonomousselfdrivingnonco]

Thats awesome...what can be done if we want to detect object and create bounding box using intel camera...can u share insights

[OFP]

Thanks ever so much! This tutorial was eye opening for me! :)

[purushottamarao]

Nice video. When I am trying to initialize the camera using Depthcamera(), I am getting an error "RuntimeError: No device connected". Could u plz help in this?. Thanks in advance

[bharathgm]

can you please explain how to find distance from Depth images

[MrSri]

Thanks for the video.
Does it work accurately on night or with out light?
And curious if it works underwater?