Tag Archives: DNN

Jetson Xavier NX Lesson 15: Training the Face Recognition Program to Recognize People

In this video lesson we should you a simple method to train our face recognizer on larger data sets. We use the python os.walk command to step through, and train automatically on all the training images in our folder. We then show how to store our training set to our SD card using the pickle utility. This allows us to train once, and use the trained model over and over.

For your convenience, the code below is what we developed to allow training our face recognition model.

Then this is a simple program that loads the trained model, and uses it to recognize people in unknown images.


Jetson Xavier NX Lesson 14: Face Recognition and Identification on NVIDIA Xavier NX

In this video lesson we show you how to train the NVIDIA Jetson Xavier NX to recognize faces, and then demonstrate finding those faces in a new unknown image.  We show step by step instruction in this easy to follow tutorial. We develop two python programs. The first one simply finds the faces in an unknown image, and the second program actually identifies the known faces. For your convenience, the code is included below.

Simple face detection Python code:

This next python program will learn faces, and then recognize them in new images.


Jetson Xavier NX Lesson 1: Getting Started and First Boot on the NVIDIA Xavier NX


In this video lesson we take you thought the initial setup on the Xavier NX to get you to first boot.  Below are links to the equipment I am using. As you go through these lessons, it will help if we are working on identical hardware:

  1. First, you will need the Jetson Xavier NX, which you can get HERE:
  2. You will want a quality, large SD card, I have very good luck with this one HERE:
  3. You will need a camera. I have found that the Jetson Xavier NX works very well with most Logitech Webcams, but these cameras are a little hard to find right now. I suggest the best option if you do not have a logitech webcam is to get the Raspberry Pi Version 2 camera, which works very well. You can pick the camera up HERE.
  4. It is optional, but I have found that it is nice to have an extra, longer cable for the Raspberry Pi camera, which is available HERE. Also, a small case/stand for the camera is nice and you can get the one I use HERE.
  5. The Jetson Nano has a slot for a SSD drive. I really like having the SSD drive attached, and makes it much easier to keep your work backed up. The projects in these lessons will work fine with just the SD card, but if you like, the SSD drive makes life easier (note even with SSD drive, you will still need the SD card above). You can get the SSD drive I am using HERE.
  6. You can use USB keyboard and mouse, but I like to preserve my USB slots for other things, so like using a wireless keyboard and mouse. This is optional, but I have found these work well on the Jetson Xavier NX, and you can get what I am using HERE.
  7. You will need an HDMI cable and monitor, which you probably already have.

OK, that is it. Get your gear ordered and lets get ready to learn Artificial Intelligence, Machine Learning, Deep Neural Networks and some other really cool things.