Description: mpeg-4编解码系统的代码，可以用来开发自己的mpeg-4编解码系统，也可以在其中加入自己的代码，开发视频水印系统。-MPEG-4 coding system code can be used to develop its own MPEG-4 coding system, also incorporated in the code, the development of video watermarking system. Platform: |
Size: 131045 |
Author:qiqi |
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Description: mpeg-4编解码系统的代码，可以用来开发自己的mpeg-4编解码系统，也可以在其中加入自己的代码，开发视频水印系统。-MPEG-4 coding system code can be used to develop its own MPEG-4 coding system, also incorporated in the code, the development of video watermarking system. Platform: |
Size: 338944 |
Author:qiqi |
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Description: 目前绝大部分视频数字水印系统是将一个64位-128位的条码嵌入到视频中，而本软件最大特点是可将用户任意指定的一幅120x120的
黑白图片(如电子印章)隐藏在一段视频流中。这样做的优点是给用户提供了最大的直观性，同时由于偶们嵌入的是一幅图片而不是一组确定的数字，因此在视频被重编码为mpeg4低分辨率格式、信息大量丢失的情况下，仍可以通过人眼识别出已经非常模糊的图片。-At present, the vast majority of video digital watermarking system is a 64-bit-128 barcode embedded into the video, which is the biggest characteristic of this software can be arbitrarily designated a user 120x120 black-and-white images (such as electronic seals) hidden in a section of video stream. The advantages of doing so is to provide users with the most intuitive, at the same time as a result of embedded偶们is a picture rather than a group to determine the figures, so the video was re-encoding for mpeg4 low-resolution formats, the information a large number of missing cases Under the adoption of the human eye can still identify the picture is very fuzzy. Platform: |
Size: 686080 |
Author:高尚兵 |
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Description: 基于MPEG_7形状轮廓描述编码的数字水印算法 提出了一种基于MPEG-7轮廓描述编码
的视频水印算法.在该算法中,原始视频数据被分割成等帧数的视频组,利用MPEG-7的轮廓
编码计算每个视频帧的主要物体轮廓坐标点集合
-Contour shape description based on coding MPEG_7 Digital Watermarking Algorithm Based on MPEG-7 contour description coding of video watermarking algorithm. In this algorithm, the original video data, such as being cut into frames of the video group, using the outline of MPEG-7 encoding of each video frame the outline of the main objects set coordinates Platform: |
Size: 175104 |
Author:杨康 |
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Description: Abstract—Based on the observation that low-frequency DCT
coefficients of an image are less affected by geometric processing,
we propose a new blind MPEG-2 video watermarking algorithm
robust to camcorder recording. Both the embedding and
extraction of the watermarks are done in the compressed domain.
The mean of the low-frequency DCT coefficients of the video is
temporally modulated according to the information bits. To
reduce complexity, we embed watermark in the prediction error
signals of the B-frames. Experimental results show that the
proposed scheme achieves high video quality and robustness to
camcorder recording, trans-coding, frame-rate conversion, and
geometric attacks on common test videos. Platform: |
Size: 136192 |
Author:lie |
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Description: 小波变换域图像水印算法是一种对图像多尺度的空间频率分解[13]，能更好地与人类视觉系统（HVS Human Visual System）相匹配。由于小波变换具有良好的时频局部性和多分辨率表示的特点，而且，当前最新的图像压缩标准——JPEG2000 和视频的MPEG-7 压缩标准都采用了小波变换，-The wavelet transform domain image watermarking algorithm is a multi-scale image of the spatial frequency decomposition [13], to better match the human visual system (HVS Human Visual System). Because the wavelet transform has good frequency characteristics of the locality and multiresolution representation, and, the latest image compression standard- JPEG2000 and video MPEG-7 compression standards have adopted the wavelet transform, Platform: |
Size: 1992704 |
Author:QYH |
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Description: 基于JPEG、MPEG标准的压缩域数字水印系统不仅节省了大量的完全解码和重新编码过程，而且在数字电视广播及VOD(Video on Demand)中有很大的实用价值。-Based on JPEG, MPEG compression standard digital watermarking system not only saves a lot of full decoding and re-encoding process, but also in digital television broadcasting and VOD (Video on Demand) has great practical value. Platform: |
Size: 90112 |
Author:zhang |
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