To provide a scanning line interpolation device that generates a noninterlace signal without deteriorating the vertical resolution in a television receiver.

In the case that a discrimination circuit 108 and a mixer circuit 109 discriminate that a motion vector of a target block differs from that of adjacent blocks, a motion detection circuit 106 detects a motion from a current field and one succeeding and preceding fields to the current field, and a motion adaptive interpolation circuit 107 obtains and generates an interpolation signal for the current field from the current and preceding fields on the basis of the motion detection.