Discrete Cosine Transform, Second Edition
暫譯: 離散餘弦變換（第二版）

許多新的類似離散餘弦變換（DCT）的變換自本書第一版以來已被提出。例如，產生整數變換係數的整數 DCT、利用影像多個方向的方向性 DCT，以及可調方向 DCT。隨著超高畫質電視（UHDTV）和 4K-TV 等高維度框架的出現，對於小型和大型變換區塊的需求也隨之增加，以有效地編碼小或大型相似區域。因此，針對現代需求，考慮到該領域的新進展，並針對學生、研究人員和業界的需求，出版一本更新版的 DCT 書籍是必要的。

Humberto Ochoa-Domínguez received the Ph.D. degree in electrical engineering from The University of Texas, Arlington in 2004. He is currently working as a professor of computer and electrical engineering in the University of Ciudad Juárez (UACJ), México. He has published extensively and is a reviewer for referred journals. He is an IEEE member and a consultant for the academy and the industry. Humberto has supervised several masters and doctoral students and served as external examiner for M.S. and Ph.D. students. He is also a reviewer of research proposals from the industry. He has published the books: H. O. Dominguez and K. R. Rao, "Discrete cosine transform", II Edition, CRC-Press, Taylor and Francis, 2019. H. O. Dominguez and K. R. Rao, "Versatile video coding", River Publishers, 2019. K. R. Rao and H. O. Dominguez, "JPEG series", to be published.

K. R. Rao received the Ph. D. degree in electrical engineering from The University of New Mexico, Albuquerque in 1966. He is now working as a professor of electrical engineering in the University of Texas at Arlington, (UTA) Texas. He has published (coauthored) 22 books, some of which have been translated into Chinese, Japanese, Korean, Spanish and Russian. Also as e-books and paper back (Asian) editions. He has supervised 115 Masters and 32 Doctoral students. He has published extensively and conducted tutorials/workshops worldwide. He has been a visiting professor in National university of Singapore and electronics and telecommunications research institute (ETRI), Taejon, Korea. He has been a keynote speaker in many national and international conferences. He has been a consultant to academia, industry and research institutes. He has been an external examiner for several M.S. and Ph. D. students worldwide. He has been a reviewer of research proposals from Brazil, China, India, Korea, Singapore, Taiwan, Thailand and US. He was invited to review applications for recruitment and/or promotion of faculty in various Universities (US and abroad). He is an IEEE Fellow. He has been a member of the academy of distinguished scholars, UTA.

Humberto Ochoa-Domínguez於2004年獲得德克薩斯大學阿靈頓分校的電機工程博士學位。他目前在墨西哥的Ciudad Juárez大學（UACJ）擔任計算機與電機工程教授。他發表了大量的研究成果，並擔任多本期刊的審稿人。他是IEEE會員，並擔任學術界和產業的顧問。Humberto指導過多位碩士和博士生，並擔任碩士及博士生的外部考官。他也是來自產業的研究提案審稿人。他出版的書籍包括：H. O. Dominguez和K. R. Rao合著的《離散餘弦變換》（Discrete cosine transform），第二版，CRC-Press，Taylor and Francis，2019年；H. O. Dominguez和K. R. Rao合著的《多功能視頻編碼》（Versatile video coding），River Publishers，2019年；K. R. Rao和H. O. Dominguez合著的《JPEG系列》（JPEG series），即將出版。

K. R. Rao於1966年獲得新墨西哥大學阿爾伯克基的電機工程博士學位。他目前在德克薩斯大學阿靈頓分校（UTA）擔任電機工程教授。他已出版（共同作者）22本書籍，其中一些已被翻譯成中文、日文、韓文、西班牙文和俄文，並以電子書和紙本（亞洲）版本發行。他指導過115位碩士生和32位博士生。他發表了大量的研究成果，並在全球各地舉辦教程和研討會。他曾在新加坡國立大學和韓國大田的電子與電信研究所（ETRI）擔任訪問教授。他在許多國內外會議中擔任主題演講者。他曾擔任學術界、產業和研究機構的顧問，並擔任全球多位碩士和博士生的外部考官。他曾擔任來自巴西、中國、印度、韓國、新加坡、台灣、泰國和美國的研究提案審稿人。他被邀請審查各大學（美國及國外）教職人員的招聘和/或晉升申請。他是IEEE Fellow，並曾是UTA傑出學者學院的成員。