Oriented Bounding Boxes Object Detection Example

Introduction

Oriented object detection surpasses standard object detection by adding angular precision to pinpoint objects in images.

Usage

To annotate rotated objects:

• Import the image file.
• Click the Rotation button on the left toolbar, or press O, to draw a rotated box.
• Select the corresponding rotated box object and drag the rotation handle above it to adjust the angle directly, or use the following shortcut keys:

Shortcut Key	Description
z	Rotate counterclockwise by a large angle (default: 1.0°)
x	Rotate counterclockwise by a small angle (default: 0.1°)
c	Rotate clockwise by a small angle (default: 0.1°)
v	Rotate clockwise by a large angle (default: 1.0°)

To display rotation angles, open View in the menu bar and enable Show Degrees.

Note

Rotation increment customization

You can customize the rotation increment angles by configuring the .xanylabelingrc file in your user directory. Add or modify the following settings under the canvas section:

canvas:
  rotation:
    large_increment: 1.0  # degrees, corresponds to Z/V keys
    small_increment: 0.1  # degrees, corresponds to X/C keys

The increment values are specified in degrees and can be adjusted to suit your annotation precision requirements.