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Technical GlossaryComputer Vision

Anchor Boxes

TR: Anchor Box

In One Line

A design approach that facilitates object detection by using predefined candidate boxes of different scales and aspect ratios.

The anchor box approach makes object detection more structured than directly predicting free-form coordinates. The model classifies and refines predefined box templates. This can be especially useful in scenes containing objects at multiple scales and aspect ratios. However, anchor design and count directly affect both accuracy and computational cost.