PAL电视信号2D自适应Y-C分离器
A 2-D ADAPTIVE Y-C SEPARATOR FOR THE PAL TV SIGNALS
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摘要: 正 PAL制电视信号编码采用的是频谱交炽原理,如果仍利用以往的Y-C分离方法就难以达到完善的分离,会在图像上形成Y、C成分间的相互串扰,造成失真以及亮度和色度细节的损失。为了充分挖掘PAL制的潜力,获得高质量的重显图像,研究适合于此制式的、行之有效并易于实现的、新的Y-C分离方式是有实际意义的
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关键词:
Abstract: A PAL 2-D adaptive separating method with which the characteristies of filters can be controlled by image edge directions at local areas is proposed. The filters and control algorithm for the 4fsc sampling system are designed. This method has the advantages of multi-performences, reasonable structure and being able to be easily realized and integrated either by digrtal circuits or by analogous circuits. Some experimental results are also given. -
Y. Guinet, 10th international TV symposium (Sess. G), Montreux, pp. 2-1--2-5, June 1977.[2]杨克信,北京邮电学院学报,1983年,第3期,第22页.[3]N. F. Maxemchuk, et al., IEEE Trans. on COM, COM-26(1978), 583-593. -
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