Stereo Vision Project: Depth Estimation with OpenCV in Python

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In this video 📝 We'll talk about Depth Estimation Using Stereo Vision. In this video, we are going to create a project where we are going to track an object in two images and use stereo vision to estimate the depth of the detected object. We will have a short recap of the previous videos about stereo vision and multiview geometry. We will see the geometry behind depth estimation and talk about how we can calculate it. At the end of the video, we are going to see the actual implementation of the project in OpenCV with Python. I also have another video about this project in C++ if you are interested in that.

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Tags:
#DepthEstimation #StereoVision #OpenCV #3DVision #MultiViewGeometry #CameraGeometry #ComputerVision #OpenCVpython #Python

[NicolaiAI]

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[empowercode]

Hey Coding Library, nice to meet you! I just found your channel, love what you're doing!

I like how clear and detailed your explanations are as well as the depth of knowledge you have surrounding the topic! Since I run a tech education channel as well, I love to see fellow Content Creators sharing, educating, and inspiring a large global audience. I wish you the best of luck on your YouTube Journey, can't wait to see you succeed! Your content really stands out and you've put so much thought into your videos, I applaud you on that!

Cheers, take care, and keep up the great work ;)

[didienrie]

Hello, first of all thanks a lot for this video and all the others, you help us so much and present things like no one does, so I want to say that I really appreciate it!
Then I have 2 questions to ask you :
1) Is it possible to modify the shape detection in order to detect a square? If yes by modifying what?
2) I did not understand which the color detection parameters were and how to change the color detection range, can you tell me where to look at?

Again, thanks a lot, I love what you're doing!!

[candysugarsosweet]

Thanks for your tutorial. The instruction really nice and clear for me. Keep doing well!

[ThePOVaholic]

Wow that's the work I was looking for, a real motivation! Keep it up man. I just want to ask you if you can help find the focal length and field of view of my camera ( laptop camera) .Thanks in advance

[pudu]

Great Tutorial.. can you please make a video to estimate depth of multiple object.

[matheusaraujokurokawa]

How can i calculate de f_pixel if the cameras are different?

[chahine]

good morning, thank you for this great tutorial, although i have a question, did you ignore the calibration in this project? cause it worked well although you didnt uncomment the calibrate function,
thank you very much for responding asap ☺

[TheBriandegroot]

Will it be possible to use my own yolov8 object detection or do i then need to build it in a segmentation model for the best results? I also need it to track with id's

[coooliiioooo]

Hi Nicolai
Thanks for the video and the explainations nice work!
One question, how should I define the baseline? Is there any best practice or formula I can use?
My use case is to create a data set for volume prediction of cups pictured from above and fixed position. So max distance/depth to the table/ cup is always the same.

[fernandosutanto]

Sorry, Quick question, is the program accurate for other objects?

[technowingsproject]

Hello @nicolaiAI, you have not used focal length (f) in find_depth function. Why so ?

[alponurkaracayalumni]

hello sir, i just calibrated my stereo cameras but my disparity matrix second and third column is infinite how can i i overcome this problem?

[박규태-rd]

What if i use different stereo camera between? For example, one is pi camera module3 else is pi camera module 3 wide lens. What do i have to change?

[acronnn]

hi, where can i find the "calib_parameters.py" file which you mention in "calibration.py" :( ? Thnx

[ilmorto]

Hi Nicolai. Which dual camera do you recommend, I am using a RPi 4, and I´m not sure did a little research and I found StereoPi and some Arducam options. Thanks in advance.

[FalconSmart]

Thank you! Any recommendations on what camera to use? Maybe put a link here?

[MarcoPalmaubica]

Hi, thanks for the video. question for you. I have images from a stereo camera. I know the distance between optics. How can I take measures of the features in one couple of images? thanks in advance

[chends]

Is the variable f or alpha used in the code? I couldn't find where

[cynthiapatil]

Which camera are you using ? can put the link for so that we can buy it .