Frame interpolating device and frame interpolating method

A frame interpolating device comprising:

• a motion vector matching module configured to perform block matching processing to output a plurality of block matching result for respective blocks in an interpolation frame generated by frame interpolating processing using a past frame and a current frame of an input video signal;
• a detection vector determining module configured to detect a combination of most similar image blocks in the past frame and the current frame from the block matching results and to employ a motion vector of the detected combination having most similar image blocks as a detection vector;
• a reference-ability determining module configured to determine referenceability of the detection vector of a reference area being located inside a screen edge area;
• a final vector determining module configured to employ the detection vector determined to be referenceable of the reference area as a motion vector of the screen edge area;
• and
• a frame interpolating module configured to perform frame interpolation processing using the employed detection vector of the reference area.