本文就是介绍利用MATLAB实现对图像的压缩与编码。
This paper is introduced using MATLAB right image compression and coding.
Google此举的目的在于得到On2的视频压缩与编码技术,即我们所熟知的VP8。
The purpose was the acquiring of On2's video compressing and encoding technology known as VP8.
近日,Google开源了WebM——用于视频压缩与编码的免费媒体文件格式,它主要包含如下组件:VP8视频codec、Vorbis音频codec以及Matroska媒体容器。
Google has recently announced WebM, an open source, royalty free media file format consisting of the following components: VP8 video codec, Vorbis audio codec, and the Matroska media container.
数据压缩编码与解压解码技术是目前广泛应用的数字通信系统中的关键技术之一。
Data compressed encoding and uncompressed decoding is one of the key technologies applied widely in digital communication system at present.
为了在加速编码过程的同时提高压缩比,将快速卷积算法与基于四叉树分割的邻域搜索算法相结合。
In order to raise compress ratio while accelerating encoding process, an algorithm com - bining fast convolution with quadtree partitioning based on neighbor search is adopted.
实验结果表明,在信号压缩比和信号重建质量与同类研究结果可比的情况下,编码速度有了很大的提高。
Experimental results show that the encoding speed is greatly increased, whereas the signal compression ratio and the quality of reconstructed signals are comparable to that of similar research.
针对目前国内十分流行的VGA及EGA等高分辩率图形卡,本文提出并实现了一种新的图象压缩编码与解码回显的方法。
Aiming at the high resolution graphic adapter VGA or EGA widely adopted in this country, a new method for compressed coding and decoding display of the images is proposed and realized in this paper.
与传统的JPEG标准相比,JPEG2000标准采用了离散小波变换、内嵌编码等技术,从而具有了渐进传输、感兴趣区域压缩、抗误码等新特性。
Compared with the JPEG standard, JPEG2000 standard adopts some different compress technique, such as the Discrete Wavelet Transform, Embedded Coding and so on.
图像分形后,对相邻帧间对应的数据求差并进行压缩编码,减少时间与空间冗余度。
After image was decomposed, the corresponding data were compressed and coded. It could reduce the time and space redundancy.
实验结果表明,该方法与传统近无损压缩方法相比,不仅具有高压缩率,而且具有更好的编码传输特性。
Experiment results reveal that our method has not only high compression efficiency, but also better characteristic of coding and delivering comparing with traditional compression methods.
在视频压缩的过程中,实现了帧内编码与帧间编码两种编码方式,运用了预测编码、运动估计、运动补偿等技术。
During the video encoding process, there are two coding types, which are Intra-frame and Inter-frame, using the methods of motion prediction, estimation and compensation.
数字音频信号的模型表示与压缩编码一直是学界和业界研究的热点课题。
The signal modeling and compression have been the hot topics in both academic and industry research areas.
为了更好地解决音频与视频同步问题,提出了一种嵌入式音视频混合信号同步压缩编码算法。
In order to resolve the problem, an embedding scheme for synchronized compression of audio and video is presented.
因此将原始图像进行图像压缩编码是解决图像数据量大与有限存储容量和传输带宽矛盾的最合理方法。
So image compression coding of the original image is the most reasonable method that solves large amount of image data with limited storage capacity and transmission bandwidth contradictions.
同时,给出了编码和译码的算法,并且与等值线编码和一维行程编码的压缩效果进行了比较。
The comparison of the compression efficiency between the new method and those of the contour encoding and one-dimensional run length encoding is also made.
相比与第一压缩标准,MPEG - 4最显著的特点之一就是提出了基于对象的编码方式。
Compared with the first generation standard, a significant character of MPEG-4 is object-based coding which means to code videos as a set of semantic video objects.
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.
运用多媒体计算机高效压缩编码技术,在普通一路电话线上快速发送与接收图像、文字与声音信息,性能稳定可靠。
This paper proposes high - efficient compassing code technique using multimedia computer which can send out and receive imagines, characters and audio message. Its property is stable and reliable.
提出了CAMDF函数,以及基于CAMDF的语音分类与基音估计算法,并在本文的压缩编码方案中得以运用。
A function named CAMDF is proposed as well as the CAMDF-based algorithms for speech classification and pitch estimation. The algorithms are used for the coding schemes in this thesis.
进行动态图像压缩时如何兼顾较高的编码速度与较低的码率成为编码的关键。
High speed and low bit rate coding is very important in dynamic image compression.
运用有约束的输入精简、LFSR编码与折叠计数器技术,实现了对确定性测试集的压缩与生成。
Constrained input reduction, LFSR coding and folding counter are applied to compress and generate a deterministic test set.
视频压缩国际编码标准的建立,使视频通信与信道带宽之间的矛盾得到极大的缓解。
With the establishment of video compression encoding standard, the contradiction between video communication and channel bandwidth is released greatly.
该编码方法与现有桌面图像编码方法相比,压缩率大于现有桌面图像编码方法,是一种性能很好的综合编码方法。
Compared with current desktop picture coding, it comes with better ratio of compression and is a better method for comprehensive coding.
最后,将感兴趣区域比特位提升与SPIHT编码算法结合,完成了图像的压缩编码。
Finally, the bit lifting on ROI is combined with SPIHT algorithm, accomplishing the image coding.
给出了基于小波的图像压缩编码的基本原理与主要几种小波图像压缩算法,讨论了图像编码中小波基选取、边界处理以及分解级数等几个问题。
The followings are studied in this thesis: principle of wavelet based image coding methods, key problems of wavelet transform in image codec and some main coding algorithms based on wavelet.
将SPIHT算法与自适应算术编码结合应用于一维漏磁信号压缩,可以实现高压缩比、多种码率压缩编码。
Combined with adaptive arithmetic coding scheme, SPIHT algorithm modified for the one-dimensional case could compress signals with the.
针对三维网格大数据量与三维图形引擎处理能力及网络带宽限制之间的矛盾,三维网格压缩编码技术提供了一系列解决方法。
To solve the conflict between the huge data of the 3d mesh and the power of the graphics engines and the limit of the network bandwidth, 3d mesh compression technique provides a series of approaches.
针对三维网格大数据量与三维图形引擎处理能力及网络带宽限制之间的矛盾,三维网格压缩编码技术提供了一系列解决方法。
To solve the conflict between the huge data of the 3d mesh and the power of the graphics engines and the limit of the network bandwidth, 3d mesh compression technique provides a series of approaches.
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