Measure size of objects in real-time with Computer Vision | Opencv with Python

[@pysource-com]

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[@christianrazvan]

U could have a 1 cm length band taped to the rail( on the metal part) and from that u could calculate the pixel/cm distance value and apply that to your objects measure. It saves you a complex camera or two cameras

[@anuragarunedlabadkar8889]

Wonderful video. Please share dataset video and complete code for practice. Without dataset and code can't practice.

[@Itay-cv4bn]

During a live broadcast of the camera, when the model is running, it is possible to produce an image using a preset button and save the dimensions of the object on the image from the video?

[@pysource-com]

Yes it's possible to do that

[@Itay-cv4bn]

An object that is photographed under a surface with predetermined dimensions, can the code be used with one image?

[@Itay-cv4bn]

And where is the video you mentioned that teaches about building a model for identification?

[@nakulmali1413]

Hello Sir first upon thanks for this video. sir i request you please upload video on how to calculate size of irregular shapes using OpenCV (my camera is moving and capturing objects)

[@geraldinaroark1123]

Can this method be used to measure moving objects via a camera on a conveyor belt?

[@MakerTutor101]

Great video Thank you so much

[@onkarchaudhari626]

What type of camera you are using

[@MrStickyIggy]

What kind of accuracy can be obtained with computer vision? For example, if a 64 megapixel camera was used could a program be able to measure simple objects with a +\-2mm tolerance? Thank you so much for these videos!

[@pysource-com]

yes definitely with a precise industrial camera and an accurate study of the project into its minimal details it's possible to achieve such accuracy with computer vision.

[@piconano]

I'm starting my journey into computer vision and Ai. Would it be possible for me to train a raspberry pi to count the number of cars from a video, models made by Honda for example? Am I barking up the wrong tree? I don't know Python but know C/C++ very well and the migration will be a walk in the park. Does Pi3B+ and Camera have the power to do that or do I need much better hardware which I don't have? Thanks for any guidance.

[@connectrRomania]

Learning more and more from your tutos, keep it up 🥳

[@AmadeaPermanaS]

Hello, I want to ask about if the camera already calibrated, did it still need to calculate the pixel ratio to cm?

[@Queracus]

of course you do. you can move a calibrated camera further away form the part, and you will get a diferent measurement.

[@bbom9197]

@@Queracus so he already knew the correct size of the object ????

[@keepsecret7624]

OK, but would much like to see a written tuition + source for this video.

[@pysource-com]

I've just added the article including the information I shared in the video and with the code snipped I coded in realtime pysource.com/2022/11/29/measure-size-of-objects-in-real-time-with-computer-vision-opencv-with-python/

[@MrBLAA]

@@pysource-com​ thank you for the code snippets!! I have learned so much from your ML tutorials! Best instructor🤙

[@ОООИЗБА-ш4в]

Is it possible to do with feedback so that when a size with deviations is detected, turn off the conveyor?

[@pysource-com]

Yes, absolutely it's possible to do that

[@iyshwaryakannan6677]

Hi sir, most helpful video for my project work, I'm working on estimating height of a person using CCTV, can the same be applied for this sir

[@abdulrahmanmohammed5874]

dose the camera position effect the measurements of objects ? if yes how can i avoid that

[@spyts]

Nice video!!! How to insert a tolerance for the object and inform in a text box (GD / NG) if the object is within a defined tolerance? Tks

[@orhandag540]

That's great video buddy !! Can you please the source that you used in video. I want to try it myself.

[@_ABDULGHANI]

Thank you for this video, if I want to calculate the hight only I will use Y (Y2-Y1). is this right? And can I use this code with YOLOv8 sgmentation?

[@mayankmaurya7877]

Sir i have to detect the node of the sugarcane on a conveyor can you help?

[@iyadhh2]

Can you deliver the same but using Azure services??? , highly application your feedback for future collaboration

[@МаксВеличко-з1к]

Hello and thanks for such a great video! I was wondering if it was possible to measure a size of an object via a ruler or a scale line, which appears on the same image as the object? For example if i am working with maps of different scale and need to get a measurement of object on such maps.

[@nikitamitrofanov3113]

cant you just crank up the contrast and then make the image black and white to identify the borders that way?

[@NTechVision]

Thank you so much! Greate

[@Itay-cv4bn]

Is it possible to do this on a single image??

[@pysource-com]

yes, but you need a stable camera or some reference in the image in order to calculate the pixel to cm ratio

[@peterr2237]

Thanks for sharing this wonderful idea that estimates the width of the boudning box of rois. However, as you said, a more practical application would need to put the camera right on top of the belt conveyor with the correct calibration. So in this case, I believe that a Mask-RCNN might not be helpful as it cannot obtain a percise mask and pretty clunky. In my view, any version of YOLO above 3 would be fair enough. Moreoever, some projects need to estimate the inner diameter of the nuts or to calculate the area of them which lead to the application of bernouli random variable.

[@petersobotta3601]

Great video once again. Can mask-rcnn be run on an edge device like a Jetson? I need object detection and the orientation of the object. Thanks

[@pysource-com]

The detectron2 version of Mask R-CNN can run on jetson xavier

[@ajaykushwah6793]

Can mask r cnn be run on raspberry Pi 4 B??

[@pysource-com]

@@ajaykushwah6793 Nope, raspberry pi 4 is too weak. Minimum you need a Jetson Xavier with 8GB of RAM

[@ajaykushwah6793]

@@pysource-com thank you

[@mhh5002]

Hi, do u have the data source used?

[@Itay-cv4bn]

And can you help me with that? Or at least tell me how to learn to do it? If I want to take a picture of an electric harness and identify its length in centimeters with the model you created and then save the picture with the measurements

[@pysource-com]

It will be too complex to explain how to do it in a short message, but I'm thinking about making new videos about object size measurements as I'm getting this topic requested a lot of times.

[@Itay-cv4bn]

​@pysource-com This will be very helpful and have been wanting to know more for a long time

[@kunthanakorn4234]

hello,my name is kun ,i am doing miniproject to sent teacher, i have problem about setting size object,can you teach me please?

[@upgradeu3928]

How to catch events, if object cross the 3 lines?

[@dansimek6790]

Hi, does anybody know how to measure size of rectangular box that can be rotated? Imagine same example as in the video, but instead of bolt nuts, it is packages and they can lay in any orientation on the conveyor belt. How would you approach that?

[@bbom9197]

you have coordinates of left and right vertices then the oritentation of the box doesnt matter . does it??? can you explain ur problem?

[@Jeziorowski242]

when the nuts rotate how to measure how many degrees they have turned?👏😊

[@ANSCENTER-yw8jb]

Can you provide draw video ?

[@vechesinishto]

I can't download a resource from the site, it sends it to the subscribe screen, I write my e-mail, but it does not approve or send a code to the e-mail. Can you please take care mr. sergio?

[@pysource-com]

please contact us at pysource.com/contact and provide the link of the page of the code you want and we'll help you with that

[@bbom9197]

how the size of the object is measured directly without knowing the depth of the video???

[@bbom9197]

26:33 got it

[@UocLv]

Will it work for object bigger then 2m? What precision i could get?

[@nakulmali1413]

Sir please upload your course on udemy

[@paulikhane]

Can you give me discount for this course? Let me know where t request for this if you have a discount code? Thank you

[@kamrangul2876]

Please make a video on counting of these nuts

[@suphasud]

Thank youuuuuuuuuuuuuuuuuuuuuuu ❤

[@francescofabbri5398]

Please can you do in 3d😍

[@Xiaoxiaoxiaomao]

👍🏻

[@nakulmali1413]

Hello Sir first upon thanks for this video. sir i request you please upload video on how to calculate size of irregular shapes using OpenCV (my camera is moving and capturing objects)