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- Theblock-based discrete cosine transform (DCT) is a fundamental component of manyinternational image and video compression standards. 基于离散余弦变换(DCT)的压缩技术是目前大多数国际图像视频压缩编码标准中采用的一种压缩技术。
- The Discrete Cosine Transform(DCT) is one of the most widely used digital compression techniques for multimedia. DCT(Discrete Cosine Transform离散余弦变换 )是目前应用最为广泛的多媒体数据压缩技术之一 .
- A fuzzy adaptive watermarking algorithm of color image based on discrete cosine transform(DCT)domain was proposed. 提出了一种基于离散余弦变换(DCT)域的模糊自适应彩色图像水印算法。
- A digital map watermarking algorithm based on discrete cosine transform(DCT) is presented. 设计了一个基于DCT的数字地图水印算法。
- Discrete cosine transform (DCT) is a hypo-optimal transform approach similar to KL transform. 摘要DCT变换是一种与KL变换非常相似的次最优变换算法。
- A novel error concealment technique based on the discrete cosine transform(DCT) coefficients recovery is proposed. 提出一种新的基于DCT系数恢复的错误隐藏技术。
- Data correlation coefficients were calculated and switch regions were analyzed by using two dimension discrete cosine transform (DCT) in ray-space data compression. 在光线空间的数据压缩中，计算了数据的相关系数，采用二维离散余弦变换(DCT)进行了变换域分析。
- A new algorithm for the computation of discrete cosine transform (DCT) with odd prime length using cyclic or skew cyclic convolutions is proposed. 提出了一种利用循环卷积 (Cyclic convolution)和扭循环卷积 (Skew cyclic convolution)实现计算奇素长度离散余弦变换 (DCT)的快速新算法。
- A novel autofocus algorithm for SAR(synthetic aperture radar) images is presented,which is based on DCT(discrete cosine transform). 研究了一种基于离散余弦变换(DCT;Discrete Cosine Transform)的SAR(Syn-thetic Aperture Radar)图像自聚焦算法.
- Proposes a new method to perform image de-noising based on lifting wavelet transform and discrete cosine transform(DCT). 提出了一种通过提升小波变换结合DCT变换的去噪新方法。
- This paper presents an efficient vector quantization (VQ) based on color video coding method in discrete cosine transform (DCT) domain. 摘要针对彩色视频图像提出了一种DCT域内基于矢量量化的高效编码方法。
- An image fusion algorithm based on discrete cosine transform (DCT) and an image fusion scheme using wavelet transform combined with DCT were proposed. 摘要提出了一种基于离散余弦变换(DCT)以及一种结合小波变换与DCT变换的图像融合新方法。
- Based on zerotrees of the discrete cosine transform(DCT) coefficients,a novel image steganographic algorithm is presented. 该文在研究图像离散余弦变换(DCT)系数零树的基础上,提出了一种新的图像隐写算法。
- Meanwhile, many video compression standards such as MPEG-1 and MPEG-2 employ DCT(Discrete Cosine Transform) and IDCT(Inverse Discrete Cosine Transform) in coding and decoding. 同时，许多视频压缩标准如MPEG-1和MPEG-2等均采用离散余弦变换(DCT: Discrete Cosine Transform)及离散余弦反变换(IDCT: Inverse Discrete Cosine Transform)进行编解码。
- The image compression standard in PACS now is the JPEG standard based on the DCT (Discrete Cosine Transform) algorithm, which can only be applied in the limited areas. 目前在PACS系统中较多采用的是JPEG图像压缩标准，该标准采用以离散余弦变换算法为主的区块编码方式,但有一定的局限性。
- The improved AFT algorithms for even and odd functions can also be used for computing discrete cosine transform (DCT) and discrete sine transform (DST),respectively. 本文改进的偶函数和奇函数的AFT算法还分别可以用来计算离散余弦变换 (DCT)和离散正弦变换 (DST) .
- Two channel estimation methods based on Discrete Cosine Transform(DCT) are proposed for Orthogonal Frequency Division Multiplexing(OFDM) systems in multi-path fading channel. 提出了两种基于离散余弦变换(DCT)的信道估计方法,适用于多径衰落的正交频分复用(OFDM)系统。
- Because the edge orientation of each block can be estimated in DCT（Discrete Cosine Transform) without decompressing, computation complexity declined greatly. 所有数据在DCT压缩域中进行处理，不需要解压缩，从而降低了计算复杂度。
- The block-based Discrete Cosine Transform (DCT) is widely used in video coding standards available today, such as ITU’s H.261, H.263, H.264 and ISO/IEC’s MPEG-1, MPEG-2, MPEG-4. 现有的视频编码标准，如ITU的H.;261，H
- This paper studies the grating projective images compression technology based on Discrete Cosine Transformation(DCT). 文中研究了基于离散余弦变换的光栅投影图的压缩。
