Intel® Distribution of OpenVINO™ Toolkit
Community assistance about the Intel® Distribution of OpenVINO™ toolkit, OpenCV, and all aspects of computer vision-related on Intel® platforms.

Smart Classroom demo Error

SC_Huang
Beginner
1,105 Views

I tried executing smart classroom demo in OpenVINO 2019 R1,

I've create a faces_gallery.json with create_list.py and had been successfully create.

But when executed the demo, error happened as following.

[ ERROR ] OpenCV(4.1.0-openvino) /opt/intel/openvino_2019.1.094/deployment_tools/inference_engine/samples/smart_classroom_demo/src/reid_gallery.cpp:72: error: (-215:Assertion failed) item.size() == 1 in function 'EmbeddingsGallery'

 So why the error happened? Could anyone help with this kind of problem?

Thank you.

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1 Solution
Tien_Dung__Tom___Ngu
1,105 Views

Dear all,

I use version 2019R1.144.

@SC Huang: I got the error when I put multiple images in gallery.

I tried to use 1 image for each identity. Then it worked.

Hope it helps.

Best Regards,

View solution in original post

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11 Replies
Tien_Dung__Tom___Ngu
1,105 Views

I got the same error.

@SC Huang

Did you fix it yet?

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Shubha_R_Intel
Employee
1,105 Views

Dear folks,

Can you kindly download R2019R1.1 (just released this week) and try again ? Please report your findings here.

Thanks,

Shubha

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Tien_Dung__Tom___Ngu
1,106 Views

Dear all,

I use version 2019R1.144.

@SC Huang: I got the error when I put multiple images in gallery.

I tried to use 1 image for each identity. Then it worked.

Hope it helps.

Best Regards,

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SC_Huang
Beginner
1,105 Views

Hi Tom,

Thanks for your information.

I've try with one image for each identity and it works too.

Maybe multiple images will be supported in the future...

 

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Shubha_R_Intel
Employee
1,105 Views

Dear Tom, 

Thanks for reporting your findings to the OpenVino community. It seems 1 image for each identity is required. I will file a bug because create_list.py doesn't check for multiple images, and throw an error accordingly. See the following code :

files_list = glob.glob(dir + '*.png') + glob.glob(dir + '*.jpg')

I will certainly file a bug on this !

Thanks !

Shubha

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SC_Huang
Beginner
1,105 Views

Shubha R. (Intel) wrote:

Dear Tom, 

Thanks for reporting your findings to the OpenVino community. It seems 1 image for each identity is required. I will file a bug because create_list.py doesn't check for multiple images, and throw an error accordingly. See the following code :

files_list = glob.glob(dir + '*.png') + glob.glob(dir + '*.jpg')

I will certainly file a bug on this !

Thanks !

Shubha

 

 

Hi Shubha,

I've tried with openVINO 2019R2, 

python3 create_list.py /location_to_the_gallery'

although the faces_gallery.json can be create, but it seems no items in json file.

{}

 

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Shubha_R_Intel
Employee
1,105 Views

Dear SC Huang,

Did you follow these instructions taken from the README.md within C:\Program Files (x86)\IntelSWTools\openvino_2019.2.242\inference_engine\demos\smart_classroom_demo ?

## Creating a Gallery for Face Recognition

To recognize faces on a frame, the demo needs a gallery of reference images. Each image should contain a tight crop of face. You can create the gallery from an arbitrary list of images:
1. Put images containing tight crops of frontal-oriented faces to a separate empty folder. Each identity could have multiple images. Name images as `id_name.0.png, id_name.1.png, ...`.
2. Run the `create_list.py <path_to_folder_with_images>` command to get a list of files and identities in `.json` format.
 

 

In your command python3 create_list.py /location_to_the_gallery it should be python3 create_list.py <full_path>/location_to_the_gallery . Or maybe you need a dot in front of your slash like :  python3 create_list.py ./location_to_the_gallery

Let me know if that helps.

Thanks !

Shubha

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SC_Huang
Beginner
1,105 Views

Shubha R. (Intel) wrote:

In your command python3 create_list.py /location_to_the_gallery it should be python3 create_list.py <full_path>/location_to_the_gallery . Or maybe you need a dot in front of your slash like :  python3 create_list.py ./location_to_the_gallery

Let me know if that helps.

Thanks !

Shubha

 

Hi Shubha,

Sorry that i simplify the location, actually my command location is full path with

python3 create_list.py $HOME/Picture/TestImage/

inside that location

ls $HOME/Picture/TestImage/
FCT.0.png    FCT.1.png    FCT.2.png    FCT.3.png    FCT.4.png    FCT.5.png    SCH.0.png    SCH.1.png    SCH.2.png    SCH.3.png    SCH.4.png    SCH.5.png

I think I've totally follow the instruction from README.md, did I miss anything?

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Liang__Alex
Beginner
1,105 Views

I have the same problem on openvino R2.

Only "{}" on faces_gallery.json after running create_list.py 

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Shubha_R_Intel
Employee
1,105 Views

Dear SC Huang

 Please attach as a *.zip file your images and I will reproduce.

Thanks for your cooperation !

Shubha

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nmam
Novice
1,008 Views

why don't we just fix the create_list.py script by introducing a slash infromnt of the png and jpg pattent strings ?

so instead of :

files_list = glob.glob(dir + '*.png') + glob.glob(dir + '*.jpg')

have this:

files_list = glob.glob(dir + '/*.png') + glob.glob(dir + '/*.jpg')

without this any one who gives the gallery folder as c:\abc\pqr  or /abc/pqr would get an empty json

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