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Solar Panel Recognition

July 16, 2018 - 5:59am #1

Hi guys, I am new to Vuforia. I managed to run a sample app with the sample assets present in the SDK. However, I am unable to have the image target in my project recognized. It is a solar cell, hence hass vey little color variation, and also has a reflective surface over it. I am not sure if these factors are the cause of the problem though. I managed to create a database successfully, and have it imported and loaded. I created a new image target for my solar panel and can see it in the scene. I have attached images of the solar cell(and the same image was used for the database) and a screenshot of my editor. Am I supposed to be optimizing the recognition in some way? Have I missed out on any steps? Any help is appreciated

 

Thanks!!

 

 

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Image icon solar_target_image.jpg672.1 KB
Image icon SMFScreenshot.png389.93 KB

Solar Panel Recognition

July 25, 2018 - 8:14am #6

Just an update. If you are curious to know where we stand. VuMarks can work, but it could be a potential problem if there is not enough space on the solar panel sides to stick it. We are contemplating also using some stackable e-paper type device that can be configured with the right code each time. Although QR codes and bar codes could be a solution, they lack the appeal of a VuMark and also require us to be much closer to the solar panel than VuMarks. Although not mandatory, we do want the augmentation to be right above the solar panel. It makes a big difference when we want to display faults in the Solar panel. This way we can map the faults / cracks right on to the exact location of the solar panel. Thanks for the reply both of you!

Solar Panel Recognition

July 20, 2018 - 8:59am #5

If you have the ability to affix a marker to the panel then go for it, VuMarks would work great.  Note that small Vumarks might not work that well, so camera might need to be close or the marker needs to be somewhat big, test out the Vuforia samples to get an idea.   Honestly, if you don't need to do AR on top of the panel, Vuforia is probably overkill and you should probably just be using a QR code/barcode reader plugin.  

 

Solar Panel Recognition

July 20, 2018 - 8:59am #4

Hello @rahulkj,

What you mentioned is an excellent use case for VuMarks.

Thanks,

Vuforia Engine Support

Solar Panel Recognition

July 20, 2018 - 6:54am #3

Thanks for the reply. Any suggestions on using VuMarks? I am thinking of using VuMarks for recognizing the solar cell as well as for encoding a serial code for each solar cell that can help give us additional information about the cell

Solar Panel Recognition

July 16, 2018 - 8:14am #2

Probably not enough variation in feature points.  If you read through this, it might help you understand what makes a good image (or object) for tracking.  https://library.vuforia.com/articles/Solution/Optimizing-Target-Detection-and-Tracking-Stability

I'd probably do this with rectangle and line detection in something like opencv.  But it'd be a big undertaking if you're not familiar with it.    

 

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