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CARLA 0.8.4 Data Collector

Repository for data collection in CARLA version 0.8.4. The data collected follows this format.

This repository contains the following features:

  • An expert demonstrator for data collection, documented here.
  • The possibility to launch several CARLAs with docker for systems with many GPUs to do scale up data collection.
  • We also provide a version of CARLA's release 0.8.4 that does not switch gears. We call it CARLA Gear. This problem is discussed in this issue.

System Overview

Overview

The data collection is divided into a set of episodes performed by an expert agent driver.

The user can configure a dataset configuration file. This file contains a set of start/end positions, weathers and number of dynamic objects to appear on every data collection episode. Further, the user also configure a CARLA settings object containing all the sensors that are going to be stored as a dataset.

This configuration file and the expert demonstrator are used inside a collector module that can be replicated on several docker instances. This instances produce a dataset on with several measurements and sensors stored on a specific format.

Getting Started

Installation

To install the CoIL large scale training framework, we provide a conda environment requirements file. Basically, just do:

conda env create -f requirements.yml

Downloading and starting the CARLA Gear server

To run this data collector you need a special version of the CARLA server version 0.8.4. It is a version where the ego-vehicle has a single gear. This problem is discussed in this issue.

The server can be dowloaded with this link.

It is possible to collect data on a regular CARLA version, however the controller will be less smooth.

Adding a single collection process

To run a single data collection process. First start a CARLA Gear Server. In a separate terminal, run:

sh CarlaUE4.sh /Game/Maps/Town01 -windowed -world-port=2000  -benchmark -fps=10

In a second terminal, start the data collector:

python3 collect.py

The collected dataset will be stored in the current folder. More configuration and visualization details can be seen here.

Massive data collection

To run a multi gpu data collection you need to have a docker image of CARLA Gear server. For that you need to install docker and build an image of CARLA Gear:

docker image build -f <carla_folder>/Util/Docker/Release.Dockerfile -t carlagear <path-to-carlagear/>CarlaGear

Where the CARLA folder is a checkout of the main CARLA repository.

The following command will open three CARLAs to collect 10 episodes each and store them at ~/Datasets/AmazingData path.

python3 multi_gpu_collection.py -n 3 -e 10 --data-path ~/Datasets/AmazingData

By default it opens three CARLAs per GPU. Note you will see some connection closed errors for a while until the CARLA dockers are ready to receive connections. The collected data will have the following data format

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