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Communication Engineering National Central University Video-Audio Processing Laboratory VAP HW3 Suggestion 指導教授:張寶基 研究生:鄭玉欣 音視訊處理實驗室 2006 / 10 / 24.

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Presentation on theme: "Communication Engineering National Central University Video-Audio Processing Laboratory VAP HW3 Suggestion 指導教授:張寶基 研究生:鄭玉欣 音視訊處理實驗室 2006 / 10 / 24."— Presentation transcript:

1 Communication Engineering National Central University Video-Audio Processing Laboratory VAP HW3 Suggestion 指導教授:張寶基 研究生:鄭玉欣 音視訊處理實驗室 2006 / 10 / 24

2 Communication Engineering National Central University Video-Audio Processing Laboratory 2 Agenda  Part 2 -- Laboratory Exercise  (2a) : Creating your Video Sequence  (2b) : Decimation and Interpolation of Video Frames in the temporal domain  (2c) : Pyramid Decomposition in Time  Part 3 -- Laboratory Write-Up  Attention

3 Communication Engineering National Central University Video-Audio Processing Laboratory 3 Part 2 -- Laboratory Exercise (1/3)  (2a) : Creating your Video Sequence  image17 : suzie40.y , image18 : suzie60.y  在適當的位置填入你的程式碼  請用不同的 frame rate (fps) 觀察 video sequence  可以試著用不同的係數內插,形成新的 video sequence ,並比較新舊之間的 PSNR ,那一種比較好 。

4 Communication Engineering National Central University Video-Audio Processing Laboratory 4 Part 2 -- Laboratory Exercise (2/3)  (2b) : Decimation and Interpolation of Video Frames in the temporal domain  在適當的位置填入你的程式碼  How does the video sequence look after decimation?  How close is the reinterpolated image to the original image for both image sequences (i.e. the sequence you created and the sequence I gave you.)? Express it by PSNRs.  何謂 PSNR ? 寫出 PSNR 的公式並解釋它.

5 Communication Engineering National Central University Video-Audio Processing Laboratory 5 Part 2 -- Laboratory Exercise (3/3)  (2c) : Pyramid Decomposition in Time  在 report 中說明原理  在適當的位置填入你的程式碼  Describe how you would implement pyramid decomposition in the spatial domain (i.e. a 512x512 image).

6 Communication Engineering National Central University Video-Audio Processing Laboratory 6 Part 3 -- Laboratory Write-Up  請討論你在此作業裡看到的每種使用不同方法得到的 video sequence 有什麼不同,你得到什麼樣的結論。  如果你覺得程式碼無法表現出你要的結果,你也可以自己 寫出自己的程式碼,讓它更完美。

7 Communication Engineering National Central University Video-Audio Processing Laboratory 7 Attention  作業須包含程式碼及報告兩部份,程式碼請在截止時間前 E-mail 給助教,報告請在 10/31( 二 ) 以紙本交給助教。  程式碼請加入詳細的註解,範例程式只有部份解答,你還 必需自行修正,當然也歡迎全部重新撰寫。  請務必確認 e-mail 為 vap-ta@vaplab.ee.ncu.edu.tw ,寄 信時可設定要求讀取回條。vap-ta@vaplab.ee.ncu.edu.tw  實驗室位置: R3-306, 分機: 57969


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