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在傅立叶频谱空间研究了数字图象在阵列屏上显示的拼面效应，以及数字图象的离散傅立叶频谱与其拼面图象的频谱分布离散抽样间的误差。指出，提高数字图象的抽样密度和减小显示屏的占空比可减小拼面效应。
In the Fourier spectrum space, the digital image is displayed on the array screen display the splicing effect, as well as digital image discrete Fourier spectrum and the spliced image spectral distribution of discrete sampling error. It is pointed out that increasing the sampling density of the digital image and reducing the duty cycle of the display screen can reduce the effect of the cascade.