基于FPGA的Sobel算子的边缘响应算法实现

Realization for Edge Response Algorithm with Sobel Arithmetic Operators Based on FPGA

由于边缘检测等图像处理算法数据量较大,要求实时信号处理系统必须具有处理大数据量的能力。提出了一种用FPGA+DSP实现图像实时处理的方案。介绍了用Sobel算子实现图像边缘检测算法的六个步骤以及用FPGA实现"边缘响应计算"和"非最大值抑制"的原理。FPGA对数据并行处理的特点,大大提高了图像信号处理速度,保证了信号处理系统的实时性。

The real-time signal processing system must have the ability of dealing with large amount of data when the edge detection algorithm is used in image processing. This paper presents a way to realize image real - time processing based on FPGA ＋ DSP, introduces the six steps of edge response algorithm realized by Sobel arithmetic operatos and the elements of ＂edge response arithmetic＂ and ＂non-maximum suppression＂ redized by FPGA. The parallel processing data characteristic of FPGA improves the processing speed of image signal and ensures the real-time responsibility in the real-time signal precessing system.