04 Image analysis for medical visualization ぱらぱらめくる『Visual Computing for Medicine Theory, Algorithms, and Applications』

• Image segmentationの話(画像領域を分ける)
  • 境界を探して決める
  • 同一セグメントに帰属する範囲を定めて結果として境界を決める
• Preprocessing
  • ROI (Region of Interest) selection
  • 補間、規格グリッド適合
  • 分布補正〜ヒストグラム変換
  • Noise reduction techniques
    • Static noise reduction filters
      • Gaussian filter
    • Separable filters
    • Dynamic noise reduction filters
      • -filter
    • Diffusion filtering
    • Filtering on boundaries
  • Gradient filtering for edge detection
• Segmentation
  • Manual segmentation
  • Threshold-based segmentation
    • Threshold selection
    • Probabilistic models
      • Multidimensional thresholding
      • Connected component analysis
  • Region growing
  • Watershed segmentation
    • Merging basins
    • Marker-based watershed
  • Graph-based segmentation
    • Livewire segmentation
      • Cost functionを入れて探索する
    • Contour-based segmentaion
    • Graph cuts
    • Random walker
  • Advanced and model-based segmentation methods
    • Active contour models
    • Level sets and fast marching methods
    • Statistical shape model
    • Active appearance models
• Inteaction for segmentation
  • 完全自動化は無理！なので、何かしらマニュアルな手を入れる
  • Mesh-based補正
  • 形の補正
• Validation方法
• 統合
  • 同一個人の複数画像データの統合