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dct.rar
- 已知两个不同图像块亮度数据如下： （1）分析DCT原理，采用DCT方法，编程并计算相应的DCT系数，分析系数分布特点。 （2）依据视觉特性分析量化表步长的分布特点，完成DCT系数量化。 （3）采用Z形扫描，实现输出数据的统计编码，形成Video stream。 （4）采用IDCT重建图像亮度数据，计算SAD大小，分析产生误差的原因及采用DCT进行数据压缩的原理。（ ） （5）分别利用左上角1、3、6个系数重建图像，计算相应的SAD，并由
automatic-exposure-control
- 图像处理的自动曝光控制算法与自动对焦算法，根据这个算法可以确定快门时间以及光圈系数。-Image processing algorithm for automatic exposure control and auto-focus algorithm, this algorithm can be determined according to shutter speed and aperture factor. 朗读显示对应的拉丁字符的拼音
Mp43
- 一个磁测野外数据处理的小软件，主要用于日变改正和高度、纬度改正的简易改正系数计算。-A magnetic field measurement data processing, a small software, mainly for diurnal variation correction and a high degree of latitude to correct a simple correction factor.
V_Factor
- v-factor 相关资料，描述IPTV中视频质量因子。-v-factor related information described in IPTV video quality factor.
Waveletdecomposition
- This routine performs a 1-D Periodic Orthogonal Wavelet decomposition. It also performs the row decomposition component of a 2-D wavelet transform. An input signal x[n] is low pass and high pass filtered and the resulting signals decimated by factor
DCTvideowatermark
- DCT based video watermarking using pseudo random factor
New
- 本文讲述多媒体转码从H.263到新一代视频编码标准H.264的异构网络转码的新算法研究-In this paper, we investigate and propose efficient methods for transcoding H.263 video to H.264/AVC standard by exploiting the new coding features. Specifically, the proposed methods aim to reduce th
1
- 该算法对输入的数据进行直方图统计，算的色温调整系数进行色温校正，可用于摄像头芯片中-The algorithm input data histogram statistics, the calculation of color temperature adjustment factor for color temperature correction, can be used for camera chip
HumanFactorHyperMedia
- Human Factor Adaptive Hypermedia
1
- 本文提出一种基于H．264低比特率视频流的半脆弱盲水印方法，通过在H．264特有的的帧内预 测和运动向量预测中分别嵌入鲁棒水印和脆弱水印，达到版权保护和内容完整性认证的双重目的．通过在嵌入强 度和预测模式选择的拉格朗日乘子中引入H．264量化因子，增强了水印对重量化编码的抵抗力，取得更好的率 失真平衡，减小水印嵌入对视频流比特率的影响．该算法可以实现水印的快速嵌入提取，满足视频实时处理的要 求，实验结果证明了该算法的有效性．-A novel semi—fragile blind
mpeg
- What does MPEG-1 Audio provide? A transparently lossy audio compression system based on the weaknesses of the human ear. Can provide compression by a factor of 6 and retain sound quality. One part of a three part standard that includes audio