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- W2039711511 abstract "A new approach to composite predictive coding for NTSC color TV signals has been proposed by Yamamoto et al. This technique involved integrating a comb filtering operation into an arbitrary linear predictor function tailored for monochrome signals. The prediction algorithms are valid as long as the sampling rate is half the integer multiple of the horizontal scanning frequency (15.7 KHz). Four intrafield predictors based on comb filtering integration (CFI) are applied to three test pictures sampled at 3fsc where fsc = 3.58 MHz is the color subcarrier frequency. With phase alternating line encoding (PALE) the data is aligned vertically. The predictors and the position of pels are shown in Table 1 and Figure 1, respectively. The variances of the prediction error were computed without the quantizer in the DPCM loop. Comparison of these variances shows that the CP1 is the best among the four predictors. Max quantizers with 5 bit, 4 bit and 3/6 bit (13 levels normal mode, 7 levels forced mode) based on the statistics of the prediction error of the CP1 are developed. Based on the occurrence frequency of the long word code (6 bit code) for the three test pictures, the buffer is designed, for constant bit rate transmission. For this processing, a single color TV channel can be transmitted at 32 MBPS which includes audio, error correcting code and synchronization bits.© (1983) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only." @default.
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- W2039711511 date "1983-03-17" @default.
- W2039711511 modified "2023-09-23" @default.
- W2039711511 title "<title>Composite Predictive Coding Of The NTSC Color TV Signal</title>" @default.
- W2039711511 doi "https://doi.org/10.1117/12.965984" @default.
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