The conventional rate-distortion image compression framework has been developed for more than 30 years. Although the peak-signal-to-noise-ratio (PSNR) index has been widely used to measure the quality of compressed image/video, it does not take the Human Visual System (HVS) characteristics into consideration. Several recently proposed IQA/VQA algorithms, such as SSIM, FSIM, EVQA, were built on top of limited quality datasets, the distorted clips have suprathreshold distortion with both the reference and each other. To address this problem, it is essential to explore new perceptual quality indices. In this project, we adopt a statistical approach to study the perceptual quality indices and propose a new methodology to characterize the human visual experience on coded clips based on the notion of just-noticeable difference (JND). We built a H.264/AVC encoded video dataset with a wide variety of video contents and invited a large number of subjects to participate in the subjective test.
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Contact Info: Haiqiang Wang, Email: haiqianw AT usc.edu
If you use this dataset in your work, please cite related papers:
Detailed description of the MCL-JCV
 H. Wang et al., “MCL-JCV: A JND-based H.264/AVC video quality assessment dataset,” 2016 IEEE International Conference on Image Processing (ICIP), Phoenix, AZ, USA, 2016, pp. 1509-1513. PDF
JND data processing
 Sudeng Hu, Haiqiang Wang and C.-C. Jay Kuo, “A GMM-based stair quality model for human perceived JPEG images,” IEEE International Conference on Acoustic, Speech and Signal Processing, Shanghai, China, March 20-25, 2016.. PDF
Overview on JND-based quality measure of coded image/video
 Joe Yuchieh Lin, Lina Jin, Sudeng Hu, Ioannis Katsavounidis, Anne Aaron and C.-C. Jay Kuo. “Experimental Design and Analysis of JND Test on Coded Image/Video.” SPIE Optical Engineering+ Applications. International Society for Optics and Photonics, 2015 . PDF
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