需求收集是一种有损压缩。
分为两个部分：无损压缩和有损压缩。
There are two parts: loseless compression and lossy compression.
矢量量化(VQ)是一种高效的有损压缩技术。
Vector quantization (VQ) is an efficient approach of lossy data compression.
图像压缩编码分为有损压缩编码和无损压缩编码。
Image compression coding includes loss compression coding and lossless compression coding.
语义压缩一般属于有损压缩，即允许一定的误差存在。
In a general way, semantic compression belongs to the lossy compression, and grants the prescribed error bounds.
简介了当今流行的JPEG有损压缩技术和相移技术。
The popular lossy-JPEG image compression arithmetic and phase-shifting technology are introduced.
作为图像有损压缩的方法之一，矢量量化的压缩比极大。
As one method of image lossy compression vector quantization has great compression ratio.
提出了一种具有复杂度低、易于硬件实现的图像有损压缩算法。
A low complexity, easy for hardware implementation of image lossy compression algorithm is presented.
几乎所有的视频编译码器都采用有损压缩，最小化与视频相关的数据量。
Almost all video codecs use lossy compression to minimize the huge amounts of data associated with video.
在许多情况下，即使由于有损压缩的很小变化也能使整个隐藏信息丢失。
In many cases even the small changes resulting out of lossy compression systems yield to total information loss.
这就保证了水印算法对有损压缩具有极好的鲁棒性，特别是JPEG压缩。
JPEG has been one of the most popular compression standards of digital image. It is ensured that the watermarking algorithm is very robust against image compression, especially JPEG compression.
图像压缩分为有损压缩和无损压缩，本文主要研究图像的无损压缩及其应用。
The image compress includes loss compress and lossless compress. The dissertation mainly studies image lossless compress and its application.
数据压缩技术有无损压和有损压缩两大类，这些压缩技术又各有不同的标准。
The compression techniques of multimedia data are divided into no-losing compression and losing compression. Different criterions are provided for these compression techniques.
基于物理真实的有损压缩往往伴随有VOP结构形变，导致重构图像质量下降。
The physical validity based lossy compression algorithms are usually accompanied with VOP structural distortion, leading to the degradation of the reconstructed image quality.
实验结果表明，该算法对于JPEG有损压缩、图像剪切等处理有很强的鲁棒性。
The experiment results show that the algorithm has better robustness on JPEG and image cut.
为了更加有效的利用带宽和节约存储空间，往往需要对图像和视频进行有损压缩。
For sake of using bandwidth more effectively and saving the storage media, it is necessary to make lossy compression on image and video.
实验结果表明，该算法对于JPEG有损压缩、图像剪切等处理有很强的鲁棒性。
The experiment results show that the algorithm has good robustness on image cut, JPEG.
以医学B超声图象为例，介绍基于统计规律上有损压缩方法在B超声专家诊断应用。
The application of a lossy compression algorithm, based on statistical law, to a B ultrasonic diagnostic expert system is introduced through some medical examples of B ultrasonic images.
IWT在无损编码与压缩中获得了很大成功，但在有损压缩效率上远低于传统的DWT。
IWT achieves great success in the lossless coding and compression, but its efficiency in the loss compression is far lower than the traditional DWT.
实验图像快速获取技术是基于图像有损压缩和TCP、UDP网络协议的图像传输技术。
The trial image rapidly acquiring technologies are based image compression with loss and TCP, UDP network protocol of image data transportation technology.
实验结果表明，该算法对图像剪切、JPEG有损压缩、中值滤波等攻击有很强的鲁棒性。
The experiment results show that the algorithm has good robustness on image cut, JPEG and median filter.
有损压缩的关键步骤之一是量化，量化性能好坏对整个图像压缩编码系统有很重大的影响。
Quantization is one of the key step of Lossy compression, the performance of quantization has great influence on the image compression coding system.
实验结果表明该算法对数字音频信号的滤波、有损压缩、重新采样等操作具有很强的稳健性。
The experimental results show that the algorithm is robust to many operations on digital audio signal, such as filter, lossy compression, and so on.
该算法不仅对有损压缩，噪声攻击具有较好的鲁棒性，而且可以抵抗共谋攻击和多水印攻击。
The proposed algorithm has high robustness against noising, loss compression, and even collusion and multiple watermarking attacks.
实验表明，本算法较好地保持了原始图像的品质，对非几何攻击和有损压缩具有较好的稳健性。
Experimental results show that the algorithm maintains the quality of the original image and is robust to non-geometric attack and loss compression.
有损压缩方案是最好的解码处理器，因为它要重建并重新创建丢失的数据，这实质是什么处理器设计。
Lossy compression schemes are best decoded in the processor, because it is necessary to rebuild and recreate the lost data, which in essence is what the processor is designed for.
实验结果证明，该算法具有良好的鲁棒性和不可见性，能够抵抗有损压缩、剪切、随机涂改和白噪声等攻击。
Experimental results prove that the arithmetic is of better robustness, invisibility, and resistance the attack to loss compression, cropping, randomly altered, white noise and so on.
实验结果表明水印是不可察觉的，经过JPEG有损压缩、低通与中值滤波、剪切等图像处理操作后仍是鲁棒的。
Experimental results show that the proposed scheme is robust for some image processing operations such as lossy JPEG compression, low pass filtering, median filtering and cropping.
该系统建立了一个比较完整的遥感图像压缩平台，并且为将有损压缩算法应用到遥感图像压缩做出了一定的探索。
This system sets up an integrated remote sensing images compression platform, and we probe into lossy compression arithmetic to apply it to remote sensing images compression.
将DCT和RLE相结合能够实现彩色图像的有损压缩，并且能够在可以接受的损失范围内，获取比较好的压缩比。
DCT and RLE will be combined to achieve the lossy compression of color images, and can be accepted within the framework of the loss of access relatively good compression ratio.
应用推荐