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This paper presents a modified GCC for TDOA measurement with wavelet transform as the pre-filters. With high input SNR, the WT operation greatly reduces the computational load of GCC without accuracy degeneration. While in the case of low input SNR, the proposed method improves the performance of GCC by increasing SNR.
An adaptive threshold edge detection algorithm based on dyadic wavelet transform is presented in this paper. At first a multi-scale edge response function (MERF) is defined as the multiple scales point-wise products of the dyadic wavelet transform to enhance significant image structures and suppress noise. Thereafter, an adaptive threshold is calculated and imposed on the MERF to identify edges as...
A fast and automatic video object segmentation algorithm based on wavelet transform and moving edge detection is proposed in this paper. First, the wavelet transform is applied to two consecutive frames. The change detection method with different thresholds in four wavelet sub-bands and Canny edge detection are used in wavelet domain. After the inverse wavelet transform, the robust difference edge...
A fast and automatic video object segmentation algorithm based on wavelet transform and moving edge detection is proposed in this paper. First, the wavelet transform is applied to two consecutive frames. The change detection method with different thresholds in four wavelet sub-bands and Canny edge detection are used in wavelet domain. After the inverse wavelet transform, the robust difference edge...
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