Interpolation frame generation apparatus, interpolation frame generation method, and broadcast receiving apparatus

An interpolation frame generation method of generating an interpolation frame image to be inserted between continuous frame images, comprising:

• executing block matching processing in each of a plurality of blocks included in the continuous frame images and specifying one motion vector on an interpolation frame;
• for an interpolation block in which one motion vector is specified, generating an interpolation frame image based on the motion vector;
• and
• for an interpolation block in which one motion vector is not specified, generating an interpolation frame image based on the frame image containing no motion vector component.

A broadcast receiving apparatus comprising:

• a tuner module configured to select a channel of a broadcast signal;
• a decoder module configured to decode the broadcast signal from the tuner module and output a video signal;
• a motion vector detection module configured to execute block matching processing in each of a plurality of blocks included in continuous frame images contained in the broadcast signal from the decoder module and specify one motion vector on an interpolation frame;
• a generation module configured to, for an interpolation block in which the motion vector detection module specifies one motion vector, generate an interpolation frame image based on the motion vector, and for an interpolation block in which the motion vector detection module does not specify one motion vector, generate an interpolation frame image based on the frame image containing no motion vector component and insert the interpolation frame image between the continuous frame images;
• and
• a display module configured to display, on a screen, an image based on the frame images in which the interpolation image is inserted.