Patent ID: 6219104
Filing Date: 2001-04-17
Classification: G06T

Abstract:
A picture processing apparatus for interpolating an interlaced video signal having an odd field and an even field, comprising:memory means having a first memory and a second memory for storing signals corresponding to two adjacent scanning lines from one field of said interlaced video signal in the same address of the first and second memories, respectively;reading means for reading the stored signals corresponding to two adjacent scanning lines of the same field from said memory means at the same time; said reading means comprising:generating means for generating an initial value that depends on whether the stored signals correspond to the odd field or the even field;cumulating means for calculating an interpolating address by cumulating the inverse of an enlargement ratio and the generated initial value; andaddress changing means for changing a read start address of said memory means based on the cumulated interpolating address; andinterpolating means for interpolating the signals read from said memory means by said reading means; said interpolating means enlarging the signals stored in said memory means.