Second generation benchmarking and application oriented ... - CVML

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3. New quality metrics

Objective: Take into consideration the HVS!

• Weighted PSNR (global)

• Watson Model

• Local (no. of visible & possible visible blocks,TPE)

• Weight the errors for each DCT coefficient by its

corresponding sensivity threshold

• Sensivity threshold is function of luminance, texture

and frequency

Computer Vision Group

University of Geneva

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3. New quality metrics Objective: Take into consideration the HVS! • Weighted PSNR (global) • Watson Model • Local (no. of visible & possible visible blocks,TPE) • Weight the errors for each DCT coefficient by its corresponding sensivity threshold • Sensivity threshold is function of luminance, texture and frequency Computer Vision Group University of Geneva

3. New quality metrics Comparison • PSNR is greater than 40dB • Watson metric detects 2 visible blocks Computer Vision Group University of Geneva

Page 1 and 2: Second generation benchmarking and
Page 3 and 4: 1. Benchmarking state-of-art • Ro
Page 5 and 6: 1. Benchmarking state-of-art Classi
Page 7 and 8: 2. New attacks Estimation-based Ass
Page 9 and 10: 2. New attacks The copy attack (est
Page 11: 2. New attacks • Non-uniform line
Page 15 and 16: 4. Checkmark Application oriented e
Page 17 and 18: 5. Conclusions • Current Stirmark

Second generation benchmarking and application oriented ... - CVML

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