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用空间光栅(也称为空间编码器)将彩色景物记录到一张黑白胶片上(这一过程称为将彩色景物编码,所得的黑白透明片称为编码片)并通过再现(称为解码)装置再现彩色景物的思想和技术可以追溯到1899年,已有近百年的历史。开始时,类似于电子学中用时间信号调制载波方法,用彩色图像来调制光栅。十多年后便出现第一个萧条时期,持续将近半个世纪。期间比较重要的成果是用三个光栅进行三次编码记录的方法。到本世纪六十年代,又兴旺了一段时间,其中最重要的成果是六十年代后期的用一个三色光栅进行一次编码记录的方法和技术,并且制成相机,在军事上和电视新闻报道中得到成功的应用;在六十年代末,另一项重要成果是认识到到编码过程中线性性的重要并进行了比较详细的分析。傅里叶光学的出现,提供了很好的解码系统。到了八十年代,又进入第二个萧条时期,一直到今天。可以说,从八十年代初期至今,没有任何重要的进展。由于这个技术本身的一些难以克服的弱点,再加上彩色胶片的优势,使得它没有立足之地。它在多重像储存和多谱段摄影中还有一些应用外,在彩色摄影方面,无论从质量还是从价格,都是无法和彩色胶片相匹敌的。
A color raster (also referred to as a spatial encoder) is used to record color scenes onto a black and white film (this process is referred to as color scene encoding and the resulting black and white transparency is referred to as a code) and is reproduced (referred to as decoding) The idea and technique of reproducing the color scene can be traced back to 1899, and nearly a hundred years have passed. Initially, similar to the method of modulating carrier waves with time signals in electronics, a color image is used to modulate a grating. After more than a decade, the first recessionary period lasted for nearly half a century. The more important result during this period was the method of encoding and recording three times with three rasters. By the 1960s, it had thrived for a while. The most important result was the method and technique of encoding and recording a tri-color grating in the late 1960s. It was also made into a camera for military and television news coverage In the late 1960s, another important achievement was the recognition of the importance of linearity in the coding process and the more detailed analysis. The advent of Fourier optics has provided a good decoding system. In the 1980s, it entered the second depression and lasted until today. It can be said that since the early 1980s, no significant progress has been made. Due to the insurmountable weakness of the technology itself, coupled with the advantages of color film, it does not have a foothold. In addition to its use in multi-image storage and multispectral photography, it is not as good as color film in color photography, both in terms of quality and price.