You need to download the source code to your VIM4 board and compile on it.

Clone the NPU demo applications to somewhere, e.g. ~/workspace:

$ mkdir ~/workspace
$ cd ~/workspace
$ git clone https://github.com/khadas/vim4_npu_applications
$ cd vim4_npu_applications
$ ls
densenet_ctc  facenet  face_recognition  face_recognition_cap  retinaface  retinaface_cap  vgg16  yolov3  yolov3_cap  yolov7_tiny  yolov7_tiny_cap  yolov8n  yolov8n_cap

• densenet_ctc, facenet, retinaface, yolov3, yolov7_tiny, yolov8n - Different demo for VIM4 NPU.

$ sudo apt update
$ sudo apt install libopencv-dev python3-opencv cmake

Take yolov3 as an example, other demos are the same.

$ cd yolov3
$ mkdir build && cd build
$ cmake ..
$ make

Detect picture:

$ cd yolov3/build
$ ./yolov3 -p ../data/1080p.bmp  -m ../data/det_yolov3_int8.adla

Detection with camera:

$ cd yolov3_cap/build
$ ./yolov3_cap -m ../data/det_yolov3_int8.adla -d X -w 1920 -h 1080

x: the number for you camera device. such as /dev/video0, x is 0.