18-4 A method for estimating PSNR of coded pictures using embedded invisible markers by manipulating WHT coefficients

Abstract

As an objective picture quality measurement method without reference, the authors propose a method for estimating PSNR by use of embedded invisible markers. Invisible markers embedded by manipulating WHT coefficient after spreading spectrum of the original pictures, are detected from the decoded pictures and the PSNR is estimated from false detection rate of the markers. The proposed method can be applicable for high quality video transmission since the degradation caused by the markers is quite small.