On Testing MPEG Compressed Digital Video

摘要

One of the most difficult problems in testing MPEG compressed video quality is the encoder's performance evaluation, as there are no rigid specifications for its realization. The authors concluded that only a combination of objective and subjective test procedures could give a good approach for solving that problem. The paper presents both the theoretical foundation and the proposed test bench used for experiments. A set of tests have been carried out using selected video sequences and different MPEG codecs. Under different restrictions of bit-rate and different settings of the MPEG frame configuration, graphical presentations of the characterizing parameters have been obtained. The authors used the results for recommending different codecs for specific applications.