INTERPOLATING SYSTEM FOR MOVEMENT CORRECTION SUBSAMPLE

摘要

PURPOSE:To suppress deterioration of image resolution in a correction mode by giving the approximate estimation to the inter-field vector having a single field space from the received inter-field movement vector having a single frame space and correcting movements of all signals existing between the 1st and 4th fields. CONSTITUTION:A 1-field delay means 5 delays the received movement vector by a single field. An adder 6 adds the output of the means 5 with said movement vector. A divider 7 divides the output of the adder 6 by 4. A subtractor 8 subtracts the output of the divider 7 from the received movement vector. A 2nd movement correcting field memory 9 stores the signal equivalent to a single frame and passing through a switch 2 and performs movement correction by the inter-field estimated movement vector, i.e., the output of the subtractor 8. The means following the inter-field interpolating filters 11 and 12 have operations as conventional. Thus it is possible to always perform interpolation by means of an inter-field interpolating filter and to suppress deterioration of image resolution in a correction mode owing to the estimation carried out with approximation to 1/4 movement vector of the transmission side.