Where is a place to start learning PGIE thing?

Accelerated Computing Intelligent Video Analytics DeepStream SDK
1

Dear all,

I try to learn sources/apps/sample_apps/deepstream-test2/README
In there, so many jargons that I did not understand, such as:
pgie, sgie1, sgie2, sgie3, PGIE_CLASS_ID_VEHICLE, etc.

What is pgie stands for? primary gstreamer i… e…?

#define PGIE_CLASS_ID_CAR 0
#define PGIE_CLASS_ID_BICYCLE 1
#define PGIE_CLASS_ID_PERSON 2
#define PGIE_CLASS_ID_ROADSIGN 3

How to specify that Car Color[2] is brown? How to create cyan as the 12th color?
How to create tesla as the 21st car make?

dstest2_pgie_config.txt → Primary_Detector
Car
Bicycle
Person
Roadsign

dstest2_pgie_config.txt → Secondary_CarColor
black;blue;brown;gold;green;grey;maroon;orange;red;silver;white;yellow

dstest2_sgie1_config.txt → Secondary_CarMake
acura;audi;bmw;chevrolet;chrysler;dodge;ford;gmc;honda;hyundai;infiniti;jeep;kia;lexus;mazda;mercedes;nissan;subaru;toyota;volkswagen

dstest2_sgie3_config.txt → Secondary_VehicleTypes
coupe;largevehicle;sedan;suv;truck;van

Thank you very much in advance.

Warmest Regards,
Suryadi

2

Hi,

You can find some information in the README file.

This sample run one detector and three classifiers.
These configure are for the inference engine separately;

dstest2_pgie_config.txt    <- primary-gie
dstest2_sgie1_config.txt   <- 1st secondary-gie
dstest2_sgie2_config.txt   <- 2nd secondary-gie
dstest2_sgie3_config.txt   <- 3rd secondary-gie

To update the class output, you will need to re-train the model for your own data.
Ex. brown color or car make

Thanks.

3

Hi,
For more information, please also check NVIDIA DeepStream SDK Developer Guide — DeepStream 6.1.1 Release documentation

4

Hi, I’d like to know the full name of PGIE and GIE. Why we use the term pgie to refer to nvinfer?
Thank you!

5

GIE = GPU Inference Engine, former name of TensorRT.
PGIE = Primary GIE
SGIE = Secondary GIE

7 Likes