Low level image processing is the base of localization. The paper discusses time domain filtering and frequency domain filtering according to the noise disturbance in the surrounding images.
低层视觉图象处理是视觉定位的基础，针对环境图象存在噪声干扰的特点，文章分别从时域和频域上分析了图象滤波的方法。
The velocity of image processing is accelerated due to the introduction of FPGA, which can finish the low level algorithm, and the performance of sensor is improved.
由于采用FPGA实现底层图像处理算法，加速了图像处理速度，提高了传感器的性能。
The velocity of image processing is accelerated due to the introduction of FPGA, which can finish the low level algorithm, and the performance of sensor is improved.
由于采用FPGA实现底层图像处理算法，加速了图像处理速度，提高了传感器的性能。
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