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Please use this identifier to cite or link to this item: http://hdl.handle.net/11133/1000

Title: 画像の動き補償予測DCTスケーラブル符号化の検討
Other Titles: ガゾウ ノ ウゴキ ホショウ ヨソク DCT スケラーブル フゴウカ ノ ケントウ
Scalable Video Coding Schemes based on DCT and MC Prediction
Authors: 中村, 元則
沢田, 克敏
NAKAMURA, Motonori
SAWADA, Katsutoshi
Issue Date: 31-Mar-1996
Publisher: 愛知工業大学
Abstract: This paper describes scalable coding schemes which use DCT and motion compensated interframe prediction. In the scalable coding, a lower resolution picture can be obtained by decoding only a partial bitstream, while a full resolution picture is obtained by decoding the total bitstream. Two types of scalable coding scheme are studied. In the first type (schemes A), an input picture is first decomposed by DCT, then MC predictive coding is carried out in the DCT picture domain. In the second type (scheme B), MC prediction is first carried out in the full resolution picture and then DCT decomposition is performed for the prediction difference picture. Coding performance for these two types of scheme was estimated by computer simulation experiments. The performance comparison between scalable and non scalable coding schemes was also carried out. The experimental results have demonstrated that the scheme B is superior to schemes A.
URI: http://hdl.handle.net/11133/1000
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