| （英） |
In the many kinds of video system, it is desired that the picture quality is controlled to provide the better picture. For this purpose, an objective picture quality estimation method without the reference picture is required. However, the objective estimation is not easy in the display, because of lack of the bit-stream information. To respond this, we discuss the non-referenced general estimation method using the reported estimation methods of the block artifact, the mosquito noise and the temporal degradation. This method works to give the absolute results which match to the subjective picture quality using reconstructed picture only. Further, a spatial blur estimation using DCT is also discussed. The results of general estimation are given as the estimated value for the subjective quality of reconstructed picture. In the comparison, high correlation were measured for each sequences, however, overall performance is not enough. |