Sentence examples for uncompressed reference from inspiring English sources
Figure 4 Full-reference scenario with original uncompressed reference.
Figure 8 Scatter plot VQM for HDTV video database uncompressed reference.
Further, in Figure 8, the scatter plot of VQM using uncompressed reference is shown including the fitting function.
Two outliers were found in the case of compressed reference and no outliers in the case of uncompressed reference.
The DMOS values were calculated both for the scenario with compressed reference (QP26, HRC1) and with uncompressed reference (HRC0).
The case where VQM is used to measure a combination of compression and transmission distortions (for example, different QP and packet loss rate with uncompressed reference) is not evaluated in this paper.
SSIM was developed to evaluate JPEG compression techniques by assessing image similarity relative to a reference uncompressed image.
In Table 4, the values of the coefficients corresponding to all the metrics for the HDTV video database when the reference is uncompressed are presented.
The structural similarity (SSIM) index is another full-reference metric used for measuring the similarity between two frames based on an initial uncompressed or distortion-free image as reference [21].
The reference is always the uncompressed file.
As it can be seen in the figure, the VQM metric was applied (after conversion to packed 4 2 2 format) between the compressed reference (video compressed and uncompressed) and the reconstructed video.
