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JP2000224593A Expired / Lapsed JP ⏱️ 0.0 years remaining

Frame interpolation method and apparatus and recording medium recording this method

Assignee: NTT Inc
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Filing: 1999-01-28
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Granted: —
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Expires: 2019-01-28
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Abstract

Abstract Translated from Japanese (57)【要約】 【課題】 動きの異なる複数被写体によって実際と異な る画像の補間フレームが生成されない補償予測符号化・ 復号を簡単な補間方法及び装置で実現する。 【解決手段】 まず領域分割部110により、復号対象 小ブロックの動き補償フレーム間差分絶対値を画素毎に 閾値と比較し、閾値より小さい画素の第1の領域と大き い画素の第2の領域に分割する。補間値演算部116は 第1の領域の画素値と参照ブロック中の対応画素値を平 均して補間フレームを構成する。補間値演算部117 は、第2の領域の復号対象フレームでの遮蔽・出現を判 定し、復号対象ブロック又は参照ブロックの対応領域の 一方を基準領域とし、基準領域が属しないフレームを再 探索参照フレームとする。次いで基準領域と再探索参照 フレーム間で求めた第2の動きベクトルの1/2から定 まる再探索参照フレームの画素値を補間フレームの第2 の領域にコピーして補間フレームを構成する。 (57) [Summary] [Problem] To compensate for predictive encoding in which an interpolated frame of an image different from the actual image is not generated by a plurality of subjects having different motions. Decoding is realized by a simple interpolation method and device. SOLUTION: An area dividing unit 110 compares a motion compensation inter-frame difference absolute value of a small block to be decoded with a threshold for each pixel, and determines a first area of a pixel smaller than the threshold and a second area of a larger pixel. To divide. The interpolation value calculation unit 116 forms an interpolation frame by averaging the pixel values of the first area and the corresponding pixel values in the reference block. Interpolated value calculator 117 Determines the occlusion / appearance of the second region in the decoding target frame, sets one of the decoding target block and the corresponding region of the reference block as a reference region, and sets a frame to which the reference region does not belong as a re-search reference frame. Next, the pixel value of the re-search reference frame determined from の of the second motion vector obtained between the reference region and the re-search reference frame is calculated as the second value of the interpolation frame. Is copied to the region of No. to configure an interpolation frame.

Inventors

  • 👤 Junichi Nakajima
  • 👤 淳一 中嶋
  • 👤 Atsushi Sagata
  • 👤 淳 嵯峨田
  • 👤 Yoshiyuki Yashima
  • 👤 由幸 八島

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Application Number —
Jurisdiction JP
Data Source google_patents
Last Synchronized 2026-11-09 22:32
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