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1.Block-DCT-based video compression scheme has been used widely in digital video system.
摘要基于分块DCT的视频压缩方法在数字视频系统中得到了广泛的应用。收藏指正
2.An Embedded Method Based on Block DCT Transformation and Scrambled Watermark
一种基于分块DCT变换和水印置乱的嵌入算法收藏指正
3.263+ is a hybrid coding method of DCT based on macro block or block and prediction coding with motion compensation.
263+是基于宏块或块的离散余弦变换和带运动补偿的预测编码相结合的混合编码方法,在解码端恢复出来的图像会产生方块效应。 H.收藏指正
4.The optimum detection based on the maximum likelihood is realized through the parameter estimation of two kinds of image block DCT coefficients.
该方法利用DCT变换中图像块低频能量的差异将DCT系数划分成平滑和纹理两类,并分别对这两类数据进行参数估计以实现基于最大似然比的最优检测.收藏指正
5.Based on video coding theory of MPEG-4,this article mainly introduces the block DCT(Discrete Cosin Transformation) arithmetic and its importance in picture/video compression,and finally researches the new video transformation coding method-Shape Adaptive DCT that is fit for MPEG-4 at the present time.
在阐述MPEG-4视频编码原理的基础上,本文重点介绍方块DCT(离散余弦变换)变换编码算法在图像/视频压缩中的原理与重要地位,并研究了目前适合于MPEG-4标准的基于形状自适应离散余弦变换(Shape Adaptive DCT)的视频变换编码新方法。收藏指正
6.A reduced number of DCT coefficients is computed in a subsequent inverse DCT computation based on the DCT block type.
而根据此离散馀弦转换区块形式则在后续的反向离散馀弦转换运算中运用较少个数之离散馀弦转换系数来做计算。收藏指正
7.Additive Insertion Imperceptual Watermarking Based on Block Classification for DCT-domain
DCT域基于块分类的不可感知加性数字水印收藏指正
8.JPEG2000 is the newest still image compression standard. It gives up the block coding style based DCT employed by JPEG. It employs multi-analyse based on wavelet transform and improves performance of image compression.
JPEG2000是最新的静止图像压缩标准,它放弃了JPEG标准采用的以离散余弦变换的区块编码方法,采用以小波变换为主的编码方式,提高了压缩性能。收藏指正
9.In the decoder, an end-of-block (EOB) position of an incoming block received by the decoder is determined and a discrete cosine transform (DCT) block type is determined based on the determined EOB position.
在该解码器部分,将收到的输入区块中决定一区块终止的位置,并根据此区块终止位置决定一种离散馀弦转换区块形式。收藏指正
10.(2) In this paper, a new method based on the JPEG2000 bit-plane coding idea isproposed for the enhancement layer coding of FGS, referred to asEmbedded Block Coding Based on DCT (EBC_DCT).
(2) 为了提高 FGS 编码方案的增强层编码效率,本文把用于静止图像的子带编码方法引入到 FGS 的增强层编码之中,提出了基于 DCT的嵌入块编码(EBC_DCT)方法。 在 EBC_DCT中,首先根据 DCT系数的特性定义上下文,然后对每一个子块进行基于位平面的上下文算术编码。收藏指正
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同义词辨析
这些动词均含有“阻止,阻塞”之意。
block : 语气强烈,指有效堵住了通道,使人或物无法通过。
bar: 含义与block很接近,指阻塞通道或禁止出入,但有对暗示不用障碍物的阻止或禁止。
hinder: 语气较轻,多指阻碍、拖延人或事,强调使进展速度缓慢下来。
obstruct: 正式用词,语气强,多指以干扰或设置障碍的方式阻碍交通,使不能自由畅通。
prevent: 含义广泛,指采取预防措施或设置障碍去阻止某人或某事。
hamper: 侧重因受到约束或阻碍而造成的行动困难。