Notice of Violation of IEEE Publication Principles: On computing code word utilization for component coded digital video
P.J. Kulkarni, Prajit Kulkarni, N. R. Phadnis · 1989
Notice of Violation of IEEE Publication Principles"On Computing Code Word Utilization for Component Coded Digital Video"by P.J. Kulkarni, P.P. Kulkarni, N.R. PhadnisProceedings of the Fourth IEEE Region 10 International Conference (TENCON), November 1989, pp. 678-681After careful and considered review of the content and authorship of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE's Publication Principles.This paper copied figures and text from the paper cited below. The original content was copied without attribution (including appropriate references to the original author(s) and/or paper title) and without permission."Code Utilization for Component-coded Digital Video"by D. Izraelevitz and J.L. KoslovProceedings of the 16th Annual SMPTE Television Conference, February 1982, pp. 22-30In the component coded digital video, luminance, (Y) and two color difference components (C1, C2) are separately converted to digital. The components are computed by multiplying red-green-blue (RGB) vectors by a matrix. This component matrix has a special structure in the sense that the color difference components become zero for white or gray shades being encoded. The matrixing operation alters the dynamic range of the computed, Y, C1, C2 components compared to the dynamic range of RGB signals. A mathematical treatment is presented by which the effect of quantization of these components on dematrixed RGB signals is studied; the efficiency with which a color system utilizes component codes can thereby be calculated. It is shown that of all the word combinations available for quantization, optimum code word utilization is only 25%. Matrices are presented for the optimum code utilization.>