Digital Video Image Quality

Digital Video Image Quality

Kapitola, resp. kapitoly v odborné knize

There are several dimensions of digital video image quality evaluation, generally splitted into subjective and objective measurements. Subjective measurements are obtained as the human observers' opinion on the video image quality, while objective measurements are performed with an aid of instrumentation, calibrated scales and mathematical algorithms. The subjective quality evaluation based on group of observers is very time consuming and exhausting. There are various objective metrics available, designed to substitute the subjective tests. The chapter contains an overview of subjective test procedures and objective test metrics. A summary of different available approaches to objective testing, dasic principles of full-reference and comparison metrics, their performance and applicability are outlined. Experimental results based on computer simulations and real laboratory environment measurements made by authors themselves are included to support the theoretical conclusions.

There are several dimensions of digital video image quality evaluation, generally splitted into subjective and objective measurements. Subjective measurements are obtained as the human observers' opinion on the video image quality, while objective measurements are performed with an aid of instrumentation, calibrated scales and mathematical algorithms. The subjective quality evaluation based on group of observers is very time consuming and exhausting. There are various objective metrics available, designed to substitute the subjective tests. The chapter contains an overview of subjective test procedures and objective test metrics. A summary of different available approaches to objective testing, dasic principles of full-reference and comparison metrics, their performance and applicability are outlined. Experimental results based on computer simulations and real laboratory environment measurements made by authors themselves are included to support the theoretical conclusions.

digital video, digital quality, subjective measurements, objective measurements, full reference metric, no-reference metric

digital video, digital quality, subjective measurements, objective measurements, full reference metric, no-reference metric

KRATOCHVÍL, T.; SLANINA, M.

2011

01.02.2010

INTECH Excelence in Education and Publishing

Vienna, Austria

978-953-7619-70-1

Digital Video, Edited by: Floriano De Rango, Chapter 23: Digital Video Image Quality

INTECH

487

500

14

http://www.sciyo.com/articles/show/title/digital-video-image-quality