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Hybrid ImagesHybrid Images
Aude Oliva & Antonio TorralbaAude Oliva & Antonio TorralbaMassachusetts Institute of TechnologMassachusetts Institute of Technolog
yyPhilippe G SchynsPhilippe G Schyns
University of GlasgowUniversity of Glasgow
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The design of hybrid imagesThe design of hybrid images
• Combining two images (ICombining two images (I11 and I and I22))
– hybrid images (H = Ihybrid images (H = I11‧G‧G11 +I +I22 ‧ (1-G ‧ (1-G22))))
22
22
22
1,
yx
eyxG
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The perception of hybrid The perception of hybrid imagesimages
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Contrast Sensitivity Contrast Sensitivity FunctionFunction
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AlignmentAlignment
a
b
c
a’
b’
c’
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Experimental Results (1/3)Experimental Results (1/3)
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Experimental Results (2/3)Experimental Results (2/3)
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Experimental Results (3/3)Experimental Results (3/3)
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ConclusionsConclusions
•利用三角網格進行利用三角網格進行 AlignmentAlignment 時,若影像時,若影像差異太大時,將會造成影像嚴重扭曲。 差異太大時,將會造成影像嚴重扭曲。
• Gaussian filter Gaussian filter 模糊結果會產生模糊結果會產生 ringing efringing effectfect 問題,可進一步改進結果。問題,可進一步改進結果。
• Gaussian filterGaussian filter 之參數調整,可能隨著不同之參數調整,可能隨著不同影像而改變。影像而改變。