Image segmentation and some of its applications

Challenges associated with image segmentation

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Image classification vs Object Detection vs Semantic Segmentation vs Instance segmentation

Focus here: Semantic Segmentation

Challenges: Annotation requires expertise, fuzzy boundaries, noisy labels

CNNs for segmentation

U-Net for image segmentation

U-Net ≈ “CNN encoder + mirrored decoder with skip connections”

→ Encoder compresses context, Decoder reconstructs fine details.

Encoder

Decoder