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- Comparing to the DCT(discrete cosine transform), the realizing of DWT(discrete wavelet transform) is more complex, so solving the fast calculating of DWT is vej-y significative to use widely DWT. 小波變換與離散余弦變換相比,運算復雜度高,如何解決小波變換的快速實(shí)現對小波變換的廣泛應用具有重要的意義。
- 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. 研究二維離散余弦變換與二維離散哈脫萊變換間的關(guān)系;基于二維哈脫萊變換算法;提出一種計算二維離散余弦變換系數的快速算法.
- The thesis includes two parts: the research for fast algorithms and filterimplementation structure of discrete cosine transform (DCT), research forwavelet-based image threshold de-noising. 論文包括兩個(gè)方面:離散余弦變換(DCT)的快速算法及濾波器實(shí)現結構,子波變換域圖像門(mén)檻降噪。
- Theblock-based discrete cosine transform (DCT) is a fundamental component of manyinternational image and video compression standards. 基于離散余弦變換(DCT)的壓縮技術(shù)是目前大多數國際圖像視頻壓縮編碼標準中采用的一種壓縮技術(shù)。
- The Discrete Cosine Transform(DCT) is one of the most widely used digital compression techniques for multimedia. DCT(Discrete Cosine Transform離散余弦變換 )是目前應用最為廣泛的多媒體數據壓縮技術(shù)之一 .
- A fuzzy adaptive watermarking algorithm of color image based on discrete cosine transform(DCT)domain was proposed. 提出了一種基于離散余弦變換(DCT)域的模糊自適應彩色圖像水印算法。
- A digital map watermarking algorithm based on discrete cosine transform(DCT) is presented. 設計了一個(gè)基于DCT的數字地圖水印算法。
- Discrete cosine transform (DCT) is a hypo-optimal transform approach similar to KL transform. 摘要DCT變換是一種與KL變換非常相似的次最優(yōu)變換算法。
- The paper proposed the characteristics and inversion method of gravity anomalies spectrum using cosine transform. 摘要提出利用余弦變換，研究規則體重力異常譜特征及反演方法。
- Quality Weight Based Discrete Cosine Transform Phase Unwrapping Algorithm in Optical Interferogram Processing[J]. 引用該論文 朱勇建;欒竹;孫建鋒;陽(yáng)慶國;劉立人.
- A novel error concealment technique based on the discrete cosine transform(DCT) coefficients recovery is proposed. 提出一種新的基于DCT系數恢復的錯誤隱藏技術(shù)。
- MPEG2 also uses the discrete cosine transform,which takes images and finds their frequency and then compresses any repetitive frequencies. MPEG2也使用離散的余弦轉換，這種轉換可獲取圖像，發(fā)現它們的頻率，然后壓縮任何的重復頻率。
- Data correlation coefficients were calculated and switch regions were analyzed by using two dimension discrete cosine transform (DCT) in ray-space data compression. 在光線(xiàn)空間的數據壓縮中，計算了數據的相關(guān)系數，采用二維離散余弦變換(DCT)進(jìn)行了變換域分析。
- A new algorithm for the computation of discrete cosine transform (DCT) with odd prime length using cyclic or skew cyclic convolutions is proposed. 提出了一種利用循環(huán)卷積 (Cyclic convolution)和扭循環(huán)卷積 (Skew cyclic convolution)實(shí)現計算奇素長(cháng)度離散余弦變換 (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). 研究了一種基于離散余弦變換(DCT;Discrete Cosine Transform)的SAR(Syn-thetic Aperture Radar)圖像自聚焦算法.
- A novel video coding algorithm based on adaptive blocking regional wavelet transform and dis-crete cosine transform is described in this paper. 為了降低低碼率視頻編碼算法的塊效應與環(huán)效應，提出了一種基于自適應分區余弦變換/子波變換和重疊運動(dòng)補償的視頻編碼算法。
- MPEG2 also uses the discrete cosine transform, which takes images and finds their frequency and then compresses any repetitive frequencies. MPEGZ也使用離散的余弦轉換，這種轉換可獲取圖像，發(fā)現它們的頻率，然后壓縮任何的重復頻率。
- Proposes a new method to perform image de-noising based on lifting wavelet transform and discrete cosine transform(DCT). 提出了一種通過(guò)提升小波變換結合DCT變換的去噪新方法。
- A multifocus image fusion based on Discrete Cosine Transform is presented according to imaging mechanism of multifocus image. 文章根據可見(jiàn)光多聚焦圖像的成像機理,提出了基于離散余弦變換的融合算法。
- This paper presents an efficient vector quantization (VQ) based on color video coding method in discrete cosine transform (DCT) domain. 摘要針對彩色視頻圖像提出了一種DCT域內基于矢量量化的高效編碼方法。
