本文首先了解了现有的图像压缩标准和算法。
This paper first understands the existing standards and algorithm of image compression.
JPEG2000是新一代的静态图像压缩标准。
在这种背景下,新一代静止图象压缩标准JPEG2000便应运而生了。
In this context, a new generation of geostationary JPEG2000 image compression standards will come into being by.
感兴趣区域)作为新一代图像压缩标准JPEG2000所增加的一个功能。
ROI(Region Of Interest) method is a new function of JPEG2000. Applying ROI we can compress image with different accuracy in different region.
主要对JPEG图像压缩标准中的DCT变换和量化部分提出了一些改进意见。
This paper mainly presents some improvements on computing discrete cosine transforms (DCT) and quantization part in the standard of JPEG image processing.
为了面向新的国际图像静态压缩标准JPEG2000,本文的研究以DWT为主。
In order to face the new still image compression standard JPEG2000, the research work in the thesis is basically based on DWT.
目前,在现有的红外图像压缩系统中,其压缩方案均采取已经成熟的图像压缩标准。
Currently, most infrared image compression systems adopt the scheme of existing mature image and video coding standards.
拟信号被转换为数字信号,并用DVD压缩标准压缩,然后传递到DVD上储存起来。
Analog signal is converted to a digital signal and compressed using DVD compression standards, then stored for transfer onto the DVD.
随着多媒体技术的飞速发展,诸如wma、ape、MP3等音频压缩标准层出不穷。
With the development of multimedia technology, more and more audio compress standards such as WMA, APE, MP3 appear.
本文主要结合MPEG - 2视频压缩标准,对视频内容认证水印技术进行了研究。
This paper mostly combines with MPEG-2 video Compression Standard, and makes some research on video content authentication watermarking techniques.
分块余弦变换(BDCT)已经被广泛应用于国际图像压缩标准并取得了良好的效果。
BDCT has been widely used for International Standard of image compression and achieved effective result.
JPEG2000是一种新的图像压缩标准,具有高压缩率、低失真度和灵活高效的特点。
JPEG2000 is a new image compressing standard, it has the characteristic of high compression ratio and low distortion.
运动视频和音频压缩标准MPEG的概述及其视频压缩算法描述,音频压缩的编码和解码。
The MPEG standard for moving video and audio compression as well as the video compress algorithm, and the encoding and the decoding of audio compression is described.
图像压缩标准MPEG1,共有4档画质,最长时间80g硬盘可连续录像达260个小时。
Picture compress standard MPEG1, Altogether 4 files nature, continuous recording can be 260 hours with 80g hard disk.
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.
研究了JPEG压缩标准和数字水印模型,提出一种基于JPEG压缩的二值图像水印算法。
It studies JPEG model and watermarking model and proposes an algorithm of watermark in compression domain.
为此,出现了新一代静止图像压缩技术JPEG2000,有可能成为未来新的图像压缩标准。
For this, ISO released again a new static image compress technique - JPEG2000, which may become the new image compression standard in the future.
运动估计是视频压缩普遍采用的一项技术,它已经被广泛运用到了当今的国际视频压缩标准中。
Motion estimation is a main video compression; it has been widely used in today's international video compression standard.
本文提出了分别基于静止图像压缩标准JPEG和JPEG2000的两种新的半脆弱水印算法。
Two novel semi-fragile watermarking algorithms respectively based on JPEG and JPEG2000 are proposed in this paper.
介绍了新的静止图像压缩标准JPEG2000的压缩原理,设计了图像压缩系统的基本实现框架。
This paper introduces the compression principle of a new compression standard JPEG2000 for still images, and designs a basic realizing framework of the image compression system.
介绍了人耳生理系统和掩蔽效应的特性,并阐述了视音频压缩标准MPEG1音频部分的心理声学模型。
By analyzing human physiological audio system and its masking effect, this paper illustrates the psychoacoustic model in audio part of the ISO video coding standard MPEG1.
小波变换具有多分辨率和多尺度特性,特别适合于二维图像信号的处理,目前已应用在静止图像的压缩标准中。
While wavelet transform is suitable in image compression due to its multi-resolution and multi-scale analysis property, and is used in the standards of image compression.
由联合图像专家组织提出的一套连续色调静态影像压缩标准ISO 10918-1,即我们俗称的JPEG。
The compression standard for continues-tone still images(ISO 10918-1), which is made by Joint Photographic Experts Group, known as JPEG.
运动估计是视频压缩中帧间预测编码的关键技术之一,在各个压缩标准中都广泛使用了基于块的运动估计技术。
Motion estimation is one of the key technologies in inner - frame estimation encoding of video compression. In all kinds of compression standard, motion estimation based on block is used widely.
本方案的设计和实现基于GPRS无线监控,实现监控数据的远程无线传输,能够满足H.263图像压缩标准。
The program design and implementation of GPRS-based wireless monitoring, monitor and control a remote wireless transmission of data to meet the H. 263 image compression standard.
因此,2000年诞生了基于小波变换的更高压缩率以及更多新功能的新一代静态图像压缩标准JPEG2000。
To meet the needs in multimedia applications, a new wavelet-based image compression standard- JPEG2000 was developed in 2000.
本文首先对数字音视频的各种压缩标准进行比较和分析,最终选取了MPEG-4作为视频监控系统的视频压缩方案。
This text compares and analyses various kinds of compression standards of the digital audio and video at first, has chosen MPEG-4 compressed scheme as the video of monitoring system of video finally.
特别是MPEG音、视频数据压缩标准的推出,各种便携式多媒体播放器相继问世,已成为消费电子产品新的增长点。
In particular, the set up of the MEPG Audio, MPEG Video compress standard, make several of portable media player comes out, have been a new selling point of the commercial electronic products.
在大多数视频压缩标准中,码率控制方法都是针对中高码率情况而设计的,而在较低码率情况下的工作情况都不够理想。
Most of the bit-rate control schemes in video-compression standards are designed for medium and high bit - rate conditions, while do not work well for low bit-rate.
JPEG是国际标准化组织(iso)和CCITT联合制定的静态图像的压缩标准,是目前最常使用的图像存储格式。
JPEG is a static image compression standard developed jointly by International Organization for Standardization (ISO) and CCITT. It's the most frequently used image storage format.
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