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- 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 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。
- MPEG2 also uses the discrete cosine transform,which takes images and finds their frequency and then compresses any repetitive frequencies. MPEG2也使用离散的余弦转换,这种转换可获取图像,发现它们的频率,然后压缩任何的重复频率。
- MPEG2 also uses the discrete cosine transform, which takes images and finds their frequency and then compresses any repetitive frequencies. MPEGZ也使用离散的余弦转换,这种转换可获取图像,发现它们的频率,然后压缩任何的重复频率。
- 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。
- Choose the video frames with small skewness,brightness space into blocks before the discrete cosine transform,embed the middle frequency coefficients into watermarking. 选择偏斜度很小的视频帧,对亮度空间分块后实施离散余弦变换,在中频系数中嵌入水印。
- This paper studies the relation between the discrete cosine transform(DCT) and the discrete hartley transform(DHT). A fast algorithm to calculate the coefficient on two dimension discrete cosine transform(2DDCT) is proposed based on the algorithm of DHT. 研究二维离散余弦变换与二维离散哈脱莱变换间的关系;基于二维哈脱莱变换算法;提出一种计算二维离散余弦变换系数的快速算法.
- A watermarking scheme based on the discrete cosine transform (DCT) was studied.A new blind watermarking algorithm by embedding the watermark into the phase components of DCT was proposed. 摘要基于离散余弦变换(DCT)方法对水印算法进行了研究,提出一种新的将水印嵌入到分块DCT相位成分的盲水印算法。
- Then compressing image and comparing the reconstruction image"s MSE value used the discrete cosine transform, wavelet transform, walsh-hadamard transform and cellular automata transform. 在相同的压缩比下,比较了压缩后图像的均方误差。
- Optimal Quantisation of the Discrete Cosine Transform 离散余弦变换的择优量化
- Fast Recursive Algorithm for the Discrete Cosine Transform with Arbitrary Length 任意长离散余弦变换的快速递归算法
- 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 离散余弦变换
- 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。
- Quality Weight Based Discrete Cosine Transform Phase Unwrapping Algorithm in Optical Interferogram Processing[J]. 引用该论文 朱勇建;栾竹;孙建锋;阳庆国;刘立人.
- 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.