Use BinaExperts Annotate

An overview of the Labeling Interface for BinaExpert Annotation Tool, including shortcut keys.

You can access the labeling interface by selecting an image from the Assign or Dataset pages on the BinaExpert dashboard.

On the right-hand side of the labeling interface, you will find the toolbar. The toolbar has many features you can use for annotating images.

In this document, we talk through how to use the following features:

• Drag and select

• Bounding box annotation tool

• Polgyon annotation tool

• Smart polygon

• Label assist

• Zoom tool

Drag and Select

Represented by a hand icon, this feature allows you to select, edit, and drag individual annotations.

• Single-click an existing bounding box to select it. Once selected, you can change a bounding box's size with the circular white handles that appear on its corners and on each side. Or use the class editor to change the box's label.

• Drag a box to move it.

• press scroll wheel to move background.

• Click the background to deselect all boxes.

Bounding Box Annotation Tool

The bounding box annotation tool (represented by a rectangular box icon) allows you to draw new bounding-box annotations. In this mode, you will see crosshairs that will help you determine where to start drawing.

Click and drag across an image to create a new annotation, then use the Class Selector to choose its label.

Polygon Annotation Tool

The polygon annotation tool allows you to draw new polygonal annotations. In this mode, you will see crosshairs that will help you determine where to start drawing.

Click on the image around objects of interest to create an enclosed polygon annotation, then use the Class Selector to choose its label.

Smart Polygon

Smart Polygon allows you to draw new Smart Polygon annotations.

In this mode, you will see a green dot when you are selecting a new area of interest (new label); a red dot when selecting areas to remove from the area of interest (parts of the object or image that you don't want to label/enclose with the polygon); and options to adjust the polygon by Convex Hull, Smooth, and Complex settings.

Smart Polygon is particularly useful for (Instance and Semantic) Segmentation projects, however, you may see performance boosts in Object Detection models when labeling with Smart Polygons on BINA.

Undo, Redo, and Repeat Annotations

While in Bounding Box (B), Polygon (P), or Smart Polygon (S) mode:

• Undo reverts the previous action.

• Redo reverses a previously undone action.

• Repeat Previous reapplies label(s) on an image in the same location(s) as the last annotated image