How to Control a PTZ Camera with Computer Vision and Roboflow Workflows

Louis Loizides' blog post, published on July 3, 2025, explores the integration of PTZ (pan, tilt, zoom) cameras into computer vision applications using Roboflow workflows. These cameras, which can move to focus on objects of interest, offer cost-effective solutions for various applications such as security, manufacturing inspection, and workplace safety. The post explains how the PTZ tracking block in Roboflow workflows simplifies the development of computer vision applications by using graphical logic and provides advanced usage examples. It highlights the importance of workflow design, including the use of the ONVIF protocol for camera control, and discusses the challenges of camera movement, such as potential lag and the need for precise PID tuning. Additionally, the blog details how to configure camera settings, utilize tracker IDs to filter previously inspected objects, and adapt workflows for specific applications like label inspection or security monitoring. The discussion also addresses the limitations of PTZ cameras, such as the inability to track undetected objects, coordinate system constraints, and difficulties with zooming during movement, emphasizing the potential of PTZ cameras in enhancing computer vision capabilities.