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I am looking to implement a CNN to detect Alzheimer disease using 3D MRI dataset containing healthy and diseased samples. I am getting a very low efficiency using LeNet and VGG16. My models aren't learning and I have around 300 images total. I am trying 3D as well as 2D convolution.

The main problem is handling the 3D images. Please do help

FURION
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  • Welcome to SO! It might help if you posted some code so we can better assist you. [More details](https://stackoverflow.com/help/minimal-reproducible-example) and [some advice](https://codeblog.jonskeet.uk/2010/08/29/writing-the-perfect-question/) from [SO's king](https://codeblog.jonskeet.uk/2012/11/24/stack-overflow-question-checklist/), Jon Skeet – Nathan majicvr.com Apr 03 '20 at 07:46
  • For starters, what do you mean by "low efficiency" ? Training time, or accuracy with your models? What kind of GPU do you have, if any? You will probably need to vectorize your code. cs231n is a great course on this that I've taken, and [this assignment](http://cs231n.github.io/assignments2019/assignment1/) teaches you to vectorize your code in numpy. There are [many solutions sets](https://github.com/Arnav0400/CS231n-2019) to these problems online, if you ever get stuck, but please attempt them on your own first. Or you could hire someone reputable to do this for you. Best of luck! – Nathan majicvr.com Apr 03 '20 at 07:53
  • I am getting 50% validation accuracy after training for 50 epochs on the LeNet architecture. I am using Google Colab to train the model. But the problem is the val_acc just remains the same after each epoch that means the model is not learning. I couldn't find any other way . – FURION Apr 03 '20 at 12:50
  • What time frame do you have? If you need it soon, I don't really have good advice. If you have some time, I would recommend the course. Also, please post some intermediate steps in the question so someone can help you – Nathan majicvr.com Apr 06 '20 at 01:27
  • Hope this helps. Sorry I don't have time to debug your work right now. Please add further comments if you have questions – Nathan majicvr.com Apr 09 '20 at 06:29

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