generating a Y component partial error measure SAEy in accordance with the following equation: ##EQU18## wherein F is a function of yr and yd , N is the vertical dimension of a Y component block corresponding to the current region, M is the horizontal dimension of the Y component block, yr are the decoded Y component signals corresponding to the decoded region, and yd are {HEAD ~ the Y component signals} corresponding to {TAIL ~ the reference region} 
corresponding to
generating a Y component partial error measure SAEy in accordance with the following equation : # # EQU18 # # wherein F is a function of yr and yd , N is the vertical dimension of a Y component block corresponding to the current region , M is the horizontal dimension of the Y component block , yr are the decoded Y component signals corresponding to the decoded region , and yd are { HEAD ~ the Y component signals } corresponding to { TAIL ~ the reference region }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL