Training custom yolo model

niloofarsabouri

Hi,

I am training my custom data set to detect window.

I have tried on many versions of YOLO. the problem is when the training is completed I have to jump to next level to convert the weights but I got the error.

Can some one help me??

Thanks.

erik

Hi niloofarsabouri ,
Have you also tried notebooks with newer yolo versions (yolov6-yolov8)?

niloofarsabouri

erik

Hi,

yes I have now started to train with YOLO7. but I discovered that it has used PASCAL VOC and then converted to YOLO format.

I will respond you as soon as possible.

following step by step.

niloofarsabouri

erik

Hi, Erik

Can you explain in YOLO7 , it has been discussed that prepare your own dataset in yolo format but, why VOC format is used and has been converted to YOLO format then?

thanks

jakaskerl

Hi niloofarsabouri
I think the voc is used here for ease of use. since the dataset is pre-made. Also it helps show how to convert between formats since many datasets exist in VOC. According to yolov6 training notebook:

If you are using a custom dataset, you will have to prepare your dataset for training YOLOv6 Wiki. Once you have set up YAML and sorted labels and images into the right directories, you can continue with the next step.
Luckily, we are using VOC, for which YAML already exists. If you inspect the YAML. We'll be the following tutorial on how to train YOLOV6 on the VOC data set.

Thanks,
Jaka

niloofarsabouri

jakaskerl

Hi,

Thanks for your reply.

Can you explain what these lines are talking about?

wget http://host.robots.ox.ac.uk/pascal/VOC/voc2007/VOCtrainval_06-Nov-2007.tar -O ./VOCdevkit/VOCtrainval_06-Nov-2007.tar

I think by this line, we can download a data set and I don't understand this part" -O ./VOCdevkit/VOCtrainval_06-Nov-2007.tar"

If I want to substitute my own data set what should I do?

can you explain more.

Thanks

jakaskerl

Hi niloofarsabouri

wget http://host.robots.ox.ac.uk/pascal/VOC/voc2007/VOCtrainval_06-Nov-2007.tar -O ./VOCdevkit/VOCtrainval_06-Nov-2007.tar

Let's break it down:

wget - This is a command-line utility to download files from the internet. It supports downloading via HTTP, HTTPS, and FTP.
http://host.robots.ox.ac.uk/pascal/VOC/voc2007/VOCtrainval_06-Nov-2007.tar - The URL of the file you want to download, in this case, the PASCAL VOC 2007 training/validation data.
-O - An option for wget that allows you to specify the output filename and path.
./VOCdevkit/VOCtrainval_06-Nov-2007.tar - Where you want the downloaded file to be saved. The . indicates the current directory, so it will save in the VOCdevkit subdirectory with the provided filename.

If you wish to substitute your data, just place the data some folder on your machine and point to it later in the tutorial when path for the dataset is used.

Thanks,
Jaka

niloofarsabouri

jakaskerl

Hi,

as it mentioned on site.

we have to make 2 paths for test and trian.

my dataset is already in yolo format so i ignore the cells which are discussing about converting VOC to YOLO.

but I got this error:

I don't understand what to do…

can you explain and help me more?

niloofarsabouri

@jakaskerl

Hi again,

I just skipped and now faced with a new error I think:

I think in last line which is relating to a class is not correct!

my class has not been recognized and these two files in exp5 are not exist!

jakaskerl

cc. @Matija

niloofarsabouri

jakaskerl

sorry for replying too much…

the main problem is:

I don't know where the problem is!

Thanks all for help

Matija

niloofarsabouri

If you've got it trained, path to weights should likely be runs/train/exp5/weights/best.pt. Notice the 5 in exp5 (not just exp). Which number it is should be based on the experiment that was successful. Assuming it was the last run, check what the exp with the highest number is in runs/train folder.

niloofarsabouri

Matija

Hi..

and thanks alot!

I got the result folder..

i mean go to the Luxions page and convert best.pt to the file

now to clone to git I got this error. I googled it but it does not make sense.

can you help me?

Thanks

niloofarsabouri

jakaskerl

Matija

Hi,

Thanks for your help

I faced with a new problem…

requests.exceptions.HTTPError: 400 Client Error: BAD REQUEST for url: https://blobconverter.luxonis.com/compile?version=2021.4&no_cache=False

why this is happening?

I renamed my file to 2021.4, but I still got the errors again.

I am still trying to solve the problem but get new error lines…

as you had mentioned in your repository:

python3 main_api.py -m <model_name> --config <config_json>

I put yolov7 in <model name> also I tried putting yolo but the same error…

and best.json for rest, and I got this error:

python3 main_api.py -m <model_name> --config <config_json>

can you explain more

I appreciate for your helps.

jakaskerl

Hi niloofarsabouri
Clone it using https:
git clone https://github.com/luxonis/depthai-experiments.git

What you are doing is cloning it using SSH, for which you need a key.

Hope this helps,
Jaka

Matija

niloofarsabouri

When you specify -m yolo it tries to download it from our cloud. You should pass the path to your .blob path there. So, in .zip from tools.luxonis.com you will get the .json (which you are using correctly) and a .blob file. -m should be path to that blobfile.

niloofarsabouri

Matija

Hi,

sorry I am new in these commands .

Would you mind explaining more … you are great.

I want to write the command.

If I don't mixed it up I have to specify my own path from this folder??

I use this commad:

python3 main.py --config best.json

it gives me an error 400 bad request!!

Matija

python3 main_api.py -c best.json -m best_openvino_2022.1_6shave.blob

niloofarsabouri

Matija

sorry for my questions…

it finally works by your help.

how can I make it more accurate?

I used 114 images to train it.

and my oak can not detect good.

Matija

114 images is barely the minimum. You should try to use more. The quality of annotations will also affect how well the model works.