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watermark_2
提出了一种离散小波变换域实现图像水印的方法。这种算法充分利用小波变换的特点,把原始图像及水印图像塔式分解,在多分辨率分解后的相同的频段来嵌入水印信息。该方法也利用了人眼视觉特性,算法简单而有效。实验证明,该算法较好地解决了水印不可见性与鲁棒性之间的矛盾,对常见的水印攻击都有较强的鲁棒性。(presents a discrete wavelet transform domain image watermarking method. This algorithm using wavelet transform characteristics, the original image and the watermark image tower decomposition, Multiresolution decomposition in the same frequency band to the embedded watermark. The method has also been used HVS, the algorithm is simple and effective. Experiments show that the algorithm can solve the watermark is visible with the robust nature of, common to have more attacks watermark robustness.)
- 2007-04-17 17:05:15下载
- 积分:1
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rbf
建立一个径向基神经网络,对非线性函数y=sqrt(x)进行逼近,并作出网络的逼近误差(The establishment of a radial basis function neural network, the nonlinear function y = sqrt (x) to approximate, and make the network approximation error)
- 2014-05-19 16:47:11下载
- 积分:1
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tfigure
简化了整个程序流程,在三维隐函数作图方面有较大的应用(It simplifies the whole program flow and has great application in drawing three-dimensional implicit function.)
- 2018-12-24 16:00:56下载
- 积分:1
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RFID-anti-collision-multi-tag
针对无线射频识别(radio frequency identification,RFID)系统的多标签碰撞问题,在分析RFID标签编码规则的基础上,提出根据标签编码规则进行标签分组和标签预淘汰的方法,在读写器识别的初始阶段根据特定的规则淘汰部分标签,从而减少系统工量,提高系统工作效率.实例证明:在不增加标签结构复杂度的基础上,充分利用已有的有效信息能够有效减少阅读器的查询次数和系统的总通信量.(For radio frequency identification (radio frequency identification, RFID) system is a multi-tag collision problem, based on the analysis of the RFID tag encoding rules based on the proposed label grouping and labeling pre-elimination method according to the label encoding rules identified in the initial reader phase-out of the label according to specific rules, thus reducing the amount of system engineering, to improve system efficiency examples demonstrate: the label without increasing the complexity of the structure on the basis of full and effective use of existing information can be effective in reducing the number of queries and reader total traffic of the system.)
- 2014-10-10 22:23:10下载
- 积分:1
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data_region
DATA REGION is about matlab and OFDM
- 2009-03-31 20:41:23下载
- 积分:1
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ITD
基于matlab工作平台的使用ITD法进行模态参数识别,程序中使用最小二乘法进行减缩计算。(a method of modal parameter identification)
- 2020-11-26 19:39:32下载
- 积分:1
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geoFunctions
Gps geo functions include M files about delay model
- 2010-08-05 15:20:42下载
- 积分:1
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PF_codes
基于粒子滤波,实现海面船只控制,滤除波动干扰,含建模和仿真,包括主程序和子程序(sea boat tracking and control based on PF)
- 2012-05-29 22:26:03下载
- 积分:1
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vp_code_Gabor
这个代码能够比较精确地实现图像中道路区域的分割与提取。(This code addresses this question by
decomposing the road detection process into two steps: the estimation
of the vanishing point associated with the main (straight) part
of the road, followed by the segmentation of the corresponding
road area based upon the detected vanishing point. The main
technical contributions of the proposed approach are a novel
adaptive soft voting scheme based upon a local voting region using
high-confidence voters, whose texture orientations are computed
using Gabor filters, and a new vanishing-point-constrained edge
detection technique for detecting road boundaries.)
- 2011-08-27 09:07:50下载
- 积分:1
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filter
可以根据不同的设计指标参数,快速、有效、自动地完成低通、高通、带通、带阻等各种滤波器的设计和仿真计算,直观展示相应滤波器的幅频、相频特性。(According to different parameters design specifications, fast and effective, automatically complete low pass, high pass, band pass, band stop filter design and various simulation, visual display appropriate filter frequency, phase frequency characteristics.)
- 2013-09-05 13:45:59下载
- 积分:1