After analyzing the problem of denoising systematically and deeply , we did our research work on spatial domain , frequency domain , temporal domain , color domain and wavelet domain respectively to decompress the noise in the video sequence 我们对视频序列的去噪问题进行了深入地系统地认识和分析后,在空域、频域、时域、色彩域、小波域等域对视频序列进行了去噪的研究。
The accuracy of calculation is improved for direct calculation in spatial domain , and the speed of calculation is faster than the conventional cross - correlation algorithm for eradicating plenty of illusive aims to eliminate the redundant operations farthest 该算法在空域中直接计算,提高了计算精度;在粗尺度上排除大量虚假目标,最大限度地去除了冗余处理,提高了计算速度。
In spatial domain , according to the characteristics of hvs ( human visual system ) , we introduce several approachs based on images " deviation , images " flatness measurement , fuzzy classification , and an approach based on difference matrix as well 在空间域内,利用人的视觉特性,我们提出了基于图象方差、图象平坦测度、模糊分类的隐藏算法,同时提出了基于差值矩阵的信息隐藏。
Therefore , this technology has great prospect with significant applicational value . this thesis firstly introduces the developmental process of super - resolution image fusion as well as all kinds of algorithms basing on both frequency domain and spatial domain 本文首先对超分辨率图像融合的发展历程和超分辨率图像融合的频域及空域的各种算法进行了介绍,并分析和比较了各种算法的优缺点。
We embed copyright watermark utilizing variance modulation on dc coefficients of dct transform ; and in the spatial domain , we embed authentication watermark gemerated from one - way hash function , lossless compression and least - significant - bit embedding 在频域中,我们采用了方差调制法,对版权水印进行嵌入;在空域中,我们采用了单向散列函数、无损压缩和最低有效位等方法,对认证水印进行嵌入。