略語大辞典 [E] 32 DCT discrete cosine transform 離散コサイン変換. (ファクシミリの)画像データ圧縮アルゴリズム. discrete cosine transform; a complex algorithm for fax compression by JPEG(Joint Photographic Experts Group), and for HDTV(high definition television) in (US); ref. VQ(vector-quantization) technology for HDTV encoding 丸善「略語大辞典」JLogosID : 11871000