Glosarium AI

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R-CNN

Two-stage object detection architecture using candidate regions and convolutional neural networks to classify each region. This is a revolutionary approach that significantly improved object detection accuracy in images.

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Region of Interest

Rectangular area of the image likely to contain an object, identified during the region proposal phase. These RoIs are then processed individually for classification and localization refinement.

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Hard Example Mining

Training strategy preferentially selecting difficult examples with high losses to improve detector performance. Particularly effective in R-CNN for managing the imbalance between positive and negative examples.