Abstract: A tri-phosphor light having a reduced emission spectrum is matched with program encoding variables for a video encoder, such that the video encoder substantially encodes only those portions of the visible spectrum corresponding to wavelength bands centered around intensity peaks of the light's output, and substantially does not encode wavelengths which fall above or below the high-wavelength and low-wavelength peaks, respectively, of the light's spectral output.
Abstract: Frequency information is selectively removed from a video signal in order to decrease the number of color values required for video compression. Removal of the frequency information includes both periodic raking out of narrow frequency bands, and rounding of frequency values. The frequency information removal is carried out selectively in those portions of the visible light spectrum in which the human eye's color response is strongest, thus allowing increases in video compression ratios without visible degradation of image quality.
Abstract: Frequency information is selectively removed from a video signal in order to decrease the number of color values required for video compression. Removal of the frequency information includes both periodic raking out of narrow frequency bands, and rounding of frequency values. The frequency information removal is carried out selectively in those portions of the visible light spectrum in which the human eye's color response is strongest, thus allowing increases in video compression ratios without visible degradation of image quality.