Jetson Inference Object Detection with Python

CostGazelle · April 1, 2023, 9:40am

Hi, I followed the below link to detect objects with Python. I need to use some python libraries (such as serial) with it but, because of this python code works inside docker/run.sh, I’m not able to import any other libraries. How can I import python libraries? and also I’m wondering is it possible to run this script without using docker/run.sh.
Thanks.

github.com

dusty-nv/jetson-inference/blob/master/docs/detectnet-example-2.md

<img src="https://github.com/dusty-nv/jetson-inference/raw/master/docs/images/deep-vision-header.jpg" width="100%">
<p align="right"><sup><a href="detectnet-camera-2.md">Back</a> | <a href="detectnet-tao.md">Next</a> | </sup><a href="../README.md#hello-ai-world"><sup>Contents</sup></a>
<br/>
<sup>Object Detection</sup></p>

# Coding Your Own Object Detection Program

In this step of the tutorial, we'll walk through the creation of the previous example for realtime object detection on a live camera feed in only 10 lines of Python code.  The program will load the detection network with the [`detectNet`](https://rawgit.com/dusty-nv/jetson-inference/master/docs/html/python/jetson.inference.html#detectNet) object, capture video frames and process them, and then render the detected objects to the display.

For your convenience and reference, the completed source is available in the [`python/examples/my-detection.py`](../python/examples/my-detection.py) file of the repo, but the guide below will act like they reside in the user's home directory or in an arbitrary directory of your choosing.  

Here's a quick preview of the Python code we'll be walking through:

``` python
import jetson.inference
import jetson.utils

net = jetson.inference.detectNet("ssd-mobilenet-v2", threshold=0.5)
camera = jetson.utils.videoSource("csi://0")      # '/dev/video0' for V4L2
display = jetson.utils.videoOutput("display://0") # 'my_video.mp4' for file

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dusty_nv · April 4, 2023, 1:20pm

Hi @CostGazelle, you would need to install the Python modules inside the container if they aren’t already. Also, you would want to mount a directory containing your customized version of detectnet.py so that your modifications to it are present inside the container (see here for more info about doing that)

Yes, you can build from source and run the whole project outside of container: https://github.com/dusty-nv/jetson-inference/blob/master/docs/building-repo-2.md

CostGazelle · April 4, 2023, 8:07pm

Hi @dusty_nv building from source is solved my problem, now I can use jetson inference libraries and other python libraries without docker thank you.

system · April 19, 2023, 11:55pm

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Jetson Inference Object Detection with Python

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