| 摘要 |
PURPOSE: A prediction block generation device generates reference pixels and adaptively filters the generated reference pixels, thereby generating a prediction bock closed to a source image. CONSTITUTION: A prediction mode decoding unit (156) determines an intra prediction mode of a current prediction unit. A reference pixel generator (151) generates reference pixels on an unusable position by using usable reference pixels. A reference pixel filtering unit (152) adaptively filters the reference pixels adjacent to the current prediction unit based on an intra prediction mode of the determined current prediction unit or the size information of the current prediction unit. A prediction block generator (153) generates the prediction block of the current prediction unit. [Reference numerals] (151) Reference pixel generation unit; (152) Reference pixel filtering unit; (153) Prediction block generation unit; (154) Prediction block filtering unit; (155) Prediction mode determining unit; (156) Prediction mode encoding unit; (157) Prediction mode transmission unit |
