Title :
Techniques for objectively measuring motion distortion in video teleconferencing systems
Author :
Schaphorst, Richard ; Roth, John
Author_Institution :
Delta Inf. Syst., Horsham, PA, USA
Abstract :
A description is presented of three different techniques for measuring motion distortion in video teleconferencing and videophone (VTC/VP) systems: temporal frequency response, scene cut response, and transmitted frame rate. All three techniques satisfy the two basic requisites for a measurement procedure to be practical. First, the measurements are performed using only the output processed picture. Second, the techniques for generating the test signal and analyzing the output signal are not excessively complex so there is promise of developing practical test equipment to implement the test procedure
Keywords :
electric distortion measurement; frequency response; picture processing; teleconferencing; videotelephony; motion distortion measurement; object measurement; output processed picture; scene cut response; temporal frequency response; test signal; transmitted frame rate; video teleconferencing systems; videophone systems; Distortion measurement; Frequency measurement; Frequency response; Layout; Motion measurement; Performance evaluation; Signal analysis; Signal generators; Teleconferencing; Testing;
Conference_Titel :
Communications, Computers and Signal Processing, 1991., IEEE Pacific Rim Conference on
Conference_Location :
Victoria, BC
Print_ISBN :
0-87942-638-1
DOI :
10.1109/PACRIM.1991.160752