| 摘要 |
Proposed is a circuit for a television system using transform-coded digital image data. Transform coding in television systems (for live transmission or for recording and temporally and/or specially shifted transmission) significantly reduces the required band width and is meant to be applied contour-adaptively with high coding efficiency and low processing capacity in relation to adaptation to local image contents/object-related motion compensation. With the proposed subdivision of the two-dimensional transform into two one-dimensional orthogonal transforms using rigidly defined orthogonal base functions in the form of transformational matrices, the circuit comprises two sections (100, 200) each of which has a sorter (110, 210), a substituter (120, 220) and a position shifter (130, 230), as well as a branched path with a counter (24), a correlator (26) and a multiplier (28) at the branch point. Both sections (100, 200) can access the components (24, 26, 28) and the second section (200) can have a transposer (205, 235) at either end. |
