Signal Processing Stack Exchange
Signal Processing Stack Exchange

Questions tagged [perceived-quality]

8 questions
9
votes
2 answers

Why is PSNR used for image quality metrics instead of SNR?

I have been trying to determine why is PSNR used instead of SNR for image quality metrics? I have read through several books and most just say that PSNR is used instead of SNR, but don't give a reason as to why. I also read these posts: Signal…
Veridian
  • 145
  • 1
  • 8
6
votes
1 answer

How to Apply the SSIM Measure on RGB Images?

I want to compare the similarity of two images by looking at its structure and colors. I need a measure that takes both structural and color fidelity into account. When I checked the formulation of original paper, it is said only x and y mean and…
Lyrk
  • 185
  • 7
3
votes
2 answers

Is it possible to "determine"/"evaluate" the perceived quality of a music audio/video record by using software in an automatic way?

I have a fairly large collection of audio/video bootlegs recorded at live performances by various artists. The recordings all come from very different sources and people through decades, and all of the recordings in the collection are just…
user12232870
  • 131
  • 4
0
votes
0 answers

What set of non-intrusive measures (features) would help to identify bad recordings before speech recognition process?

I'd like to try various non-intrusive features (parameters) that could be calculated from speech recordings (no clean reference) to eliminate bad recordings before doing speech recognition. What set of parameters (features) could help to classify…
bully44
  • 1
0
votes
0 answers

PSNR and SSIM on non-rectangular image regions

My goal is to compare the quality of an image with its low-resolution versions using an object quality metric like PSNR. Since such metrics can only be applied on same-sized images, I first upscale the low-resolution images to the origina size…
chronosynclastic
  • 377
  • 1
  • 6
  • 13
0
votes
2 answers

Does Short-time Fourier transform impact quality of signal?

I am playing with spleeter to separate voice from an audio signal. They go to the frequency domain by computing the Short-time Fourier transform to create a spectrogram. As there are some approximation (windowing and overlap of window) in this…
Samos
  • 121
  • 2
0
votes
3 answers

Quality of experience engineer

I have noticed certain overlap between digital signal processing and quality assurance for jobs that require expertise in evaluating the quality of the transmitted signals on telecommunication systems like VoIP or IPTV. I have two…
JMFS
  • 344
  • 1
  • 3
  • 15
-1
votes
2 answers

Audio Quality Assessment

I need an algorithm to assess the quality of a given audio. The task, is considered to be no-reference. Can anyone help me whether there is any method for quality assessment of any given audio? edit1: Note that I do not want to just classify them to…
Quasar
  • 1
  • 2