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Core Process

Atlas Registration

Automated alignment of brain sections to reference atlases

Definition
The computational process of aligning an image of an experimental brain section to the corresponding reference atlas plate through affine and non-rigid transformations. Every pixel in the section can then be given a standardized anatomical label.
Fully Automated
One-click registration, as specified for PanoBrain
Per-Pixel Annotation
Every pixel assigned to an anatomical region
Damage Tolerant
Works on torn, folded, and partial sections

How It Works

Atlas registration involves several computational steps:

  1. Section detection: identify the tissue boundary and orientation
  2. AP-level estimation: determine which atlas plate best matches the section based on morphological features
  3. Affine alignment: rotate, scale, and translate the atlas to roughly match the section
  4. Non-rigid deformation: warp the atlas boundaries to account for tissue shrinkage, tearing, or compression
  5. Region projection: transfer atlas labels onto every pixel of the experimental image

PanoBrain is specified to run this entire process automatically from one click, and to handle common tissue artifacts such as tears, folds, and missing pieces.

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