Title :
Spatio-temporal visibility function for image sequences
Author :
Ahn, J.H. ; Kim, Jung Kuk
Author_Institution :
Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol., Seoul, South Korea
fDate :
3/28/1991 12:00:00 AM
Abstract :
The conventional visibility function of a still image is extended to a spatio-temporal visibility function for image sequences. The visibility of impairment noise is subjectively measured as a function of both spatial and temporal gradients by an A/B sequence test. Some characteristics of the spatio-temporal visibility function are presented such as approximated forms and comparisons with spatial visibility functions.
Keywords :
picture processing; random noise; A/B sequence test; approximated forms; image sequences; impairment noise; spatial visibility; spatio-temporal visibility function; temporal gradients;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19910369
