EFFICIENT ENCODING/DECODING IN THE DECOMPOSITION AND RECOMPOSITION OF A HIGH RESOLUTION IMAGE UTILIZING ITS LOW RESOLUTION REPLICA

摘要

- 34-EFFICIENT ENCODING/DECODING IN THEDECOMPOSITION AND RECOMPOSITION OF AHIGH RESOLUTION IMAGE UTILIZINGITS LOW RESOLUTION REPLICAAbstractMore efficient encoding/decoding in decomposing andrecomposing a high resolution image is obtained by employing a uniqueprediction arrangement. The prediction arrangement determines whetherhigh resolution pixels to be recomposed from low resolution pixels from alow resolution replica of the high resolution are so-called typicallypredictable or non-typically predictable by using general prediction rules.The general prediction rules are also employed to determine if any of thetypically predictable high resolution pixels would be improperly recomposed.Such high resolution pixels which would be improperly recomposed areidentified as exceptions. It is noted that so-called supplemental informationis required to properly recompose non-typically predictable pixels andtypically predictable pixels which are identified as exceptions. To this end,exceptions accompany the low resolution pixel for which the correspondinghigh resolution pixels would otherwise be improperly recomposed. (FIG. 1).