1 / 24

Extracting Depth and Matte using a Color-Filtered Aperture

Extracting Depth and Matte using a Color-Filtered Aperture. Extracting Depth and Matte using a Color-Filtered Aperture. 簡介 準備 原理 裁切 範例 比較. 簡介. 單一取景 深度資訊 RGB 分離造成偏移 相近色背景也可取出主體. 準備. 安裝分色濾鏡. 準備. 安裝分色濾鏡. 準備. 安裝分色濾鏡. 準備. 安裝分色濾鏡. 原理. 原理. 原理. 原理. 三種顏色，三個面 I r I g I b.

rufina
Download Presentation

Extracting Depth and Matte using a Color-Filtered Aperture

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Extracting Depth and Matte using a Color-Filtered Aperture

  2. Extracting Depth and Matte using a Color-Filtered Aperture • 簡介 • 準備 • 原理 • 裁切 • 範例 • 比較

  3. 簡介 • 單一取景 • 深度資訊 • RGB分離造成偏移 • 相近色背景也可取出主體

  4. 準備 • 安裝分色濾鏡

  5. 準備 • 安裝分色濾鏡

  6. 準備 • 安裝分色濾鏡

  7. 準備 • 安裝分色濾鏡

  8. 原理

  9. 原理

  10. 原理

  11. 原理 • 三種顏色，三個面 Ir Ig Ib • Ir(x+d, y), Ig(x, y−d), Ib(x−d, y)

  12. 原理 • 畫面分割為小視窗

  13. 原理 • 畫面分割為小視窗 • SI (x, y; d) = {(Ir(s+d, t), Ig(s, t−d), Ib(s−d, t)) | (s, t) ∈ w(x, y)} • 最小化

  14. 原理

  15. 裁切

  16. 裁切

  17. 裁切

  18. 裁切

  19. 裁切

  20. 裁切 • SF (x, y; d) = {(Fr(s+d, t), Fg(s, t−d), Fb(s−d, t)) | (s, t) ∈ w(x, y)} li is the distance of the i-th color in SF (x, y; d) from the line fitted to the elongated color cluster (i.e., the first principal axis).

  21. 裁切 • SF (x, y; d) = {(Fr(s+d, t), Fg(s, t−d), Fb(s−d, t)) | (s, t) ∈ w(x, y)}

  22. 裁切 決定下個α

  23. 範例

  24. 比較

More Related