D wavelet transform compression coding for image seqUences has been reported recently.
最近有文献报道图像序列的三维子波变换压缩编码。
The image damage by transform coefficients quantization in ID-DCT transform compression coding is analysed on frequency domain and space domain. Some useful results are obtained.
本文对一维DCT变换压缩编码中变换域系数二次量化引起的图象损伤进行了频域和空间域分析,得出了一些有用的结论。
A system model of image sequence coding based on wavelet transform is established. Then a high data compression ratio is realized and satisfactorily reconstructed image can be obtained.
建立了基于小波变换的运动图像编码系统模型,实现了数据的高效压缩并得到了良好的恢复图像。
Combined with various applications in image coding and compression, lifting scheme transform is compared with wavelet transform in both hard realization and computation burden.
结合图像压缩编码的具体应用,从硬件可实现性和计算量两个方面对比了提升框架变换和小波变换。
The paper introduced the method to realize the image compression based on Integer Lapped Biorthogonal Transform(LBT) and the theory of coding as well as its hardware design.
介绍基于双正交整数叠式变换(LBT)的图像压缩及编码方法的原理,以及该系统的硬件设计。
Image compression is one of the most important key techniques in image processing. Traditional compression methods include prediction coding, transform coding and vector quantization (VQ).
图像压缩是数字图像处理中最重要的关键技术之一,传统的图像压缩方法有预测编码、变换编码和矢量量化等。
The experiment shows that the embedded zerotree coding method can be used in the case of nonseparable wavelet transform and has good PSNR at low compression ratio.
实验表明嵌入式零材编码方法可以用在非分离型二维子波变换情况,在低比特率时有很好的巅值信噪比PSNR。
KLT is used to remove the correlation of spectral redundancy as one-dimensional (1d) linear transform, and SFCVQ coding is applied to enhance compression ratio.
KL变换作为一维线性变换被用于消除一维(1d)谱冗余,且SFCVQ编码被应用于提高压缩比。
To improve the compression ratio, image quality and coding efficiency, an image coding algorithm based on wavelet transform and scalar vector quantization is presented.
针对标量量化压缩比小而向量量化压缩速度慢、图像复原效果不理想等弱点,提出了基于小波变换的分类量化图像编码算法(简称“分类量化编码”)。
The project is based on wavelet transform image compression, and implements wavelet transform, subband coding, The quantization and entropy encoding processes provide data compression;
该方案基于小波变换的场内图像压缩技术,采用小波变换、子带编码、自适应量化和熵编码来对图像数据进行压缩;
Absrtact: for its fine performance, DCT transform is widely used in the compression and coding method of image and video data.
摘要:DCT变换以其优良特性被图像和视频的数据压缩编码所广泛采用。
The zero-tree coding algorithm based on wavelet transform is a kind of good compression method. Firstly, this thesis studies this kind of algorithm and completes the whole design.
基于小波变换的零树编码算法是效果较好的一类压缩方法,因此本文首先对这种算法进行了研究,完成了整体方案的设计。
Coding of arbitrarily shaped image is one of the core techniques in MPEG 4 video compression. One approach to transform an arbitrarily shaped image region is addressed.
任意形状图象对象的变换编码方法是MPEG -4视频编码实现的核心技术之一。
So it is effective to apply U-transform, which may be used extensively in the application of video coding, to the field of image compression.
由此可见,应用u -正交变换对图像进行编码压缩是一类行之有效的方法,并有望在视频编码中得到应用。
So it is effective to apply U-transform, which may be used extensively in the application of video coding, to the field of image compression.
由此可见,应用u -正交变换对图像进行编码压缩是一类行之有效的方法,并有望在视频编码中得到应用。
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