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home/Knowledge Base/Camera Features/Using Multiple ROIs with LUCID Cameras

Using Multiple ROIs with LUCID Cameras

1145 views 2 March 7, 2022 Updated on April 12, 2022

Introduction

This document will explain how to use the multiple region of interest (ROI) feature with LUCID cameras.

Requirements

Arena SDK:

  • Windows: Arena SDK v1.0.31.8 or higher
  • Linux x64: Arena SDK v0.1.59 or higher
  • Linux ARM64: Arena SDK v0.1.43 or higher

Firmware:

  • Phoenix: firmware v1.64 or higher
  • Triton: firmware v1.75 or higher

Setup Instructions

The following instructions explain how to use multiple ROIs with LUCID cameras. These instructions assume a ROI height of 256 pixels will be used.

  1. Stop acquisition if already streaming
  2. (optional) Set Acquisition Control -> ISP Clock Speed = Fast
    On supported cameras, this control enables the camera’s ISP to run at a faster rate, which can enable faster framerates.
  3. Set Image Format Control -> Multi ROI Rows Enable = True

Set Row 1 ROI:

  • Set Image Format Control -> Multi ROI Row Selector = 0
  • Set Image Format Control -> Multi ROI Row Enable = True
  • Set Image Format Control -> Multi ROI Row Size = 256
  • Set Image Format Control -> Multi ROI Row Offset = 0

Set Row 2 ROI:

  • Set Image Format Control -> Multi ROI Row Selector = 1
  • Set Image Format Control -> Multi ROI Row Enable = True
  • Set Image Format Control -> Multi ROI Row Size = 256
  • Set Image Format Control -> Multi ROI Row Offset = 900

These settings will select the following ROIs in the image:

The framerate of the camera will depend on the placement of the ROI rows.

Node Row 1 Row 2 Framerate
Multi ROI Row Selector 0 1 94.09108 Hz
Multi ROI Row Enable True True
Multi ROI Row Size 236 236
Multi ROI Row Offset 0 500
Node Row 1 Row 2 Framerate
Multi ROI Row Selector 0 1 62.196791 Hz
Multi ROI Row Enable True True
Multi ROI Row Size 236 236
Multi ROI Row Offset 0 900
Node Row 1 Row 2 Framerate
Multi ROI Row Selector 0 1 61.364752
Multi ROI Row Enable True True
Multi ROI Row Size 236 236
Multi ROI Row Offset 326 1228
Node Row 1 Row 2 Framerate
Multi ROI Row Selector 0 1 48.668905
Multi ROI Row Enable True True
Multi ROI Row Size 236 236
Multi ROI Row Offset 0 1228

Multiple ROI columns are not supported.

Acquisition must be stopped before changing the ROI settings.

Example Visualization

Full ROI displayed in ArenaView

Multiple ROIs displayed in ArenaView

Both ROIs will have the same width, which is controlled by the Width property. Two (2) rows are currently supported.

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