Threshold value for acceptable video quality using signal-to-noise ratio

Mikko Vaahteranoksa; Tero Vuori

doi:10.1117/12.702995

29 January 2007 Threshold value for acceptable video quality using signal-to-noise ratio

Mikko Vaahteranoksa, Tero Vuori

Proceedings Volume 6494, Image Quality and System Performance IV; 649405 (2007) https://doi.org/10.1117/12.702995
Event: Electronic Imaging 2007, 2007, San Jose, CA, United States

Abstract

Noise decreases video quality considerably, particularly in dark environments. In a video clip, noise can be seen as an unwanted spatial or temporal variation in pixel values. The object of the study was to find a threshold value for signal-to-noise ratio (SNR) in which the video quality is perceived to be good enough. Different illumination levels for video shooting were studied using both subjective and objective (SNR measurements) methodologies. Five camcorders were selected to cover different sensor technologies, recording formats and price categories. The test material for the subjective test was recorded in an environment simulator, where it was possible to adjust lighting levels. Double staircase test was used as the subjective test method. The test videos for objective measurements were recorded using an ISO 15739 based environment. There was a correlation found between objective and subjective measurements, between measured SNR and perceived quality. Good enough video quality was reached between SNR values of 15.3 dB and 17.2 dB. With 3CCD and super HAD-CCD technologies, video quality was brighter, less noisy, and the SNR was better in low light conditions compared to the quality with conventional CCDs.

Citation Download Citation

Mikko Vaahteranoksa and Tero Vuori "Threshold value for acceptable video quality using signal-to-noise ratio", Proc. SPIE 6494, Image Quality and System Performance IV, 649405 (29 January 2007); https://doi.org/10.1117/12.702995

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available