Python package provinding tools for artistic interactive applications using AI

Jul 18, 2021 1 min read

redrawing

Created by ReDrawing Campinas team for the OpenCV AI 2021 Competition.

Stages

Stages are the basic processing units of the redrawing package. They receive data objects from input channels, processes them and output data in the output channels.

Examples of stages:

Stage name	Use
OAK_Stage	Handles a OAK camera. Can be changed using OAK_Substages, like a Body detector or a Hand gesture detector
PCR_Viewer	Visualizer for image, depth and body pose data
CameraReceiver/IMUReceiver	Receives data from a smarthphone
UKF_IMU	UKF filter for orientation estimation using IMU data

Data and communication

All inter stage data communication occours using Data classes.

Examples of data classes:

Data class	Use
BodyPose	Stores body pose data (keypoints)
Image	Stores image data
Depth_Map	Stores depth data
IMU	Stores IMU data

For exchange data with client applications, the UDP_Stage can be used, using UDP protocol with JSON converted messages. We also have client libraries for receiving and decoding data:

redrawing_java: client library for Java
ReDrawing for Processing: client library for Processing, encapsulates the redrawing_java library

Tool

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