NVIDIA-AI-IOT / deepstream-occupancy-analytics

People count application With Deepstream SDK and Transfer Learning Toolkit

• Description
• Prerequisites
• Getting Started
• Build
• Run
• Output
• References

Description

This is a sample application for counting people entering/leaving in a building using NVIDIA Deepstream SDK, Transfer Learning Toolkit (TLT) and pre-trained models. This application can be used to build real-time occupancy analytics application for smart buildings, hospitals, retail, etc. The application is based on deepstream-test5 sample application.

It takes streaming video as input, counts the number of people crossing a tripwire and sends the live data to the cloud. In this application, you will learn:

• How to use PeopleNet model from NGC
• How to use NvDsAnalytics plugin to draw line and count people crossing the line
• How to send the analytics data to cloud or another microservice over Kafka

You can extend this application to change region of interest, use cloud-to-edge messaging to trigger record in the DeepStream application or build analytic dashboard or database to store the metadata.

To learn how to build this demo step-by-step, check out the on-demand webinar on Creating Intelligent places using DeepStream SDK.

Prerequisites

• Install Deepstream: [https://docs.nvidia.com/metropolis/deepstream/dev-guide/index.html#page/DeepStream_Development_Guide/deepstream_quick_start.html#]

• Download PeopleNet model: [https://ngc.nvidia.com/catalog/models/nvidia:tlt_peoplenet]

• This application is based on deepstream-test5 application. More about test5 application: [https://docs.nvidia.com/metropolis/deepstream/dev-guide/index.html#page/DeepStream_Development_Guide/deepstream_reference_app_test5.html]

• Install Kafka: [https://kafka.apache.org/quickstart] and create the kafka topic:

  tar -xzf kafka_2.13-2.6.0.tgz

  cd kafka_2.13-2.6.0

  bin/zookeeper-server-start.sh config/zookeeper.properties

  bin/kafka-server-start.sh config/server.properties

  bin/kafka-topics.sh --create --topic quickstart-events --bootstrap-server localhost:9092

Getting Started

• Preferably clone the repo in $DS_SDK_ROOT/sources/apps/sample_apps/
• Download peoplnet model: cd deepstream-occupancy-analytics/config && ./model.sh
• For Jetson use: bin/jetson/libnvds_msgconv.so
• For x86 use: bin/x86/libnvds_msgconv.so

Build

cd deepstream-occupancy-analytics && make

Run

./deepstream-test5-analytics -c config/test5_config_file_src_infer_tlt.txt

In another terminal run this command to see the kafka messages:

bin/kafka-console-consumer.sh --topic quickstart-events --from-beginning --bootstrap-server localhost:9092

Output

The output will look like this:

Where you can see the kafka messages for entry and exit count.

References

• CREATE INTELLIGENT PLACES USING NVIDIA PRE-TRAINED VISION MODELS AND DEEPSTREAM SDK: [https://info.nvidia.com/iva-occupancy-webinar-reg-page.html?ondemandrgt=yes]
• Deepstream SDK: [https://developer.nvidia.com/deepstream-sdk]
• Deepstream Quick Start Guide: [https://docs.nvidia.com/metropolis/deepstream/dev-guide/index.html#page/DeepStream_Development_Guide/deepstream_quick_start.html#]
• Transfer Learning Toolkit: [https://developer.nvidia.com/transfer-learning-toolkit]