U-Net: A Convolutional Network for Image Segmentation
U-Net: Convolutional
Network for Segmentation
Presented by: Chanon Chantaduly
What does a U-Net do?
Input Image
Output Segmentation Map
Learns Segmentation
U-Net Architecture
Ronneberger et al. (2015) U-net Architecture
U-Net Architecture
Ronneberger et al. (2015) U-net Architecture
- Increases field of view
- Lose Spatial Information
“Contraction” Phase
U-Net Architecture
Ronneberger et al. (2015) U-net Architecture
-
Create High Resolution
Mapping
“Expansion” Phase
U-Net Architecture
Ronneberger et al. (2015) U-net Architecture
Concatenate with high-resolution feature
maps from the Contraction Phase
U-Net Summary
•
Contraction Phase
•
Reduce spatial dimension, but increases the “what.”
•
Expansion Phase
•
Recovers object details and the dimensions, which is the “where.”
•
Concatenating feature maps from the Contraction phase helps the Expansion
phase with recovering the “where” information.
Ronneberger et al. (2015) ISBI cell tracking challenge
Author Results
U-Net is a convolutional neural network designed for image segmentation. It consists of a contracting path to capture context and an expanding path for precise localization. By concatenating high-resolution feature maps, U-Net efficiently handles information loss and maintains spatial details. The architecture's unique design has been successfully applied in tasks like the ISBI cell tracking challenge.
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Presentation Transcript
U-Net: Convolutional Network for Segmentation Presented by: Chanon Chantaduly
What does a U-Net do? Learns Segmentation Output Segmentation Map Input Image
U-Net Architecture Ronneberger et al. (2015) U-net Architecture
U-Net Architecture Contraction Phase - Increases field of view - Lose Spatial Information Ronneberger et al. (2015) U-net Architecture
U-Net Architecture Expansion Phase - Create High Resolution Mapping Ronneberger et al. (2015) U-net Architecture
U-Net Architecture Concatenate with high-resolution feature maps from the Contraction Phase Ronneberger et al. (2015) U-net Architecture
U-Net Summary Contraction Phase Reduce spatial dimension, but increases the what. Expansion Phase Recovers object details and the dimensions, which is the where. Concatenating feature maps from the Contraction phase helps the Expansion phase with recovering the where information.
Author Results Ronneberger et al. (2015) ISBI cell tracking challenge
