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本文主要介绍一种利用TMS 32010数字信号处理器(DSP)和IBM-PC/XT微机构成的微机遥感图像快速处理系统。在此系统上,我们根据微波遥感图像的特点,采用TMS32010宏汇编语言研制出了一个遥感图像快速处理软件库。经过机载微波辐射计图像处理检验,采用TMS 32010语言编程在该系统上的图像处理速度要比采用FORTRAN语言编程在普通微机系统上的图像处理速度提高了100-500倍。此外,本文还提出一种新的平滑滤波算法。该算法滤除高斯白噪声的能力要优于中值滤波,同时还可以保护图像的边缘不被模糊。
This article mainly introduces a microcomputer using TMS 32010 digital signal processor (DSP) and IBM-PC / XT computer remote sensing image processing system. In this system, according to the characteristics of microwave remote sensing images, using TMS32010 macro assembly language developed a remote sensing image processing software library. After airborne microwave radiometer image processing test, using TMS32010 language programming in the system image processing speed than using FORTRAN language programming on a common computer system image processing speed increased by 100-500 times. In addition, this paper also presents a new smoothing filtering algorithm. The proposed algorithm outperforms Gaussian white noise in filtering ability better than median filtering, meanwhile it can also protect the edge of image from being blurred.