OpenMV Cam M7 Text Recognition

Discussion related to "under the hood" OpenMV topics.
alpha91
Posts: 2
Joined: Thu May 16, 2019 10:17 pm

OpenMV Cam M7 Text Recognition

Postby alpha91 » Fri May 17, 2019 1:53 am

Hi all, I am new to OpenMV Cam and I am require to use OpenMV M7 to detect text and character and send the output to Raspberry Pi

I find this OpenMV from Youtube

https://www.youtube.com/watch?v=xK1V06AMZx8

and OpenMV side having this tutorial https://github.com/kwagyeman/openmv/tre ... ml/cmsisnn

I dont understand here is, is that i must setup the environment to achieve the text reading function of OpenMV M7?
Or is there anyone use M7 cam to recognize text before can guide me on this?
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kwagyeman
Posts: 2990
Joined: Sun May 24, 2015 2:10 pm

Re: OpenMV Cam M7 Text Recognition

Postby kwagyeman » Fri May 17, 2019 2:16 am

It doesn't run on the M7. It runs on the H7 model. If you want to run it on the M7 you have to re-train the network to be smaller.

If you buy the OpenMV Cam H7 we have the demo ready to run and included with the IDE.
Nyamekye,
alpha91
Posts: 2
Joined: Thu May 16, 2019 10:17 pm

Re: OpenMV Cam M7 Text Recognition

Postby alpha91 » Fri May 17, 2019 2:25 am

kwagyeman wrote:
Fri May 17, 2019 2:16 am
It doesn't run on the M7. It runs on the H7 model. If you want to run it on the M7 you have to re-train the network to be smaller.

If you buy the OpenMV Cam H7 we have the demo ready to run and included with the IDE.
Oh... I didnt know that and i already get the M7.
Is there any guide on how to re-train the network?
To be honest, i just get to understand the Neuron network thing and still trying to figure how it actually works.
I am totally beginner in this :D
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iabdalkader
Posts: 802
Joined: Sun May 24, 2015 3:53 pm

Re: OpenMV Cam M7 Text Recognition

Postby iabdalkader » Fri May 17, 2019 10:02 am

alpha91 wrote:
Fri May 17, 2019 2:25 am
Is there any guide on how to re-train the network?
Yes, to retrain a network just follow the guide for the network you want:

https://github.com/openmv/openmv/blob/m ... /README.md

Of course you need to reduce the size of the network to fit the F7 (maybe just reduce IP1 to 50 or something).

This is a good introduction to NNs:
https://adeshpande3.github.io/adeshpand ... -Networks/
https://adeshpande3.github.io/A-Beginne ... ks-Part-2/

And this is a practical tutorial:
http://adilmoujahid.com/posts/2016/06/i ... hon-caffe/

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