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本文首先简单回顾了作者曾提出的二维实值离散Gabor变换及其与复值离散Gabor变换的简单关系,然后着重探讨了二维实值离散Gabor变换快速计算问题,提出了二维实值离散Gabor变换系数求解的时间递归算法以及由变换系数重构原图像的块时间递归算法,研究了双层并行格型结构实现两算法的方法,计算复杂性分析及与其它算法的比较证明了双层并行格型结构实现方法在实时处理方面的优越性。
This paper first briefly reviews the two-dimensional real-valued discrete Gabor transform proposed by the author and its simple relationship with the complex-valued discrete Gabor transform. Then, this paper focuses on the fast computational problem of two-dimensional real-valued discrete Gabor transform, Gabor transform coefficients to solve the time recursive algorithm and transform coefficients from the original image reconstruction block time recursive algorithm to study the two-tier parallel lattice structure to achieve two algorithms, computational complexity analysis and comparison with other algorithms to prove that the double Advantages of Parallel Lattice Structure in Real-time Processing.