Video signal receiving apparatus and video signal receiving method

A video signal receiving apparatus comprising:

• a reception processing unit which receives a first video signal for transmitting a same video content with a first aspect ratio and a second video signal for transmitting the same video content with a second aspect ratio different from the first aspect ratio respectively;
• a first video adjustment unit which adjusts a size of a first video included in the first video signal;
• a second video adjustment unit which adjusts a size of a second video included in the second video signal;
• and
• an arithmetic processing unit which performs image size determination processing for determining a size adjustment amount of the second video adjusted by the second video adjustment unit,
• wherein the second video adjustment unit performs scaling processing for reducing or enlarging a second image included in the second video signal to generate a scaling image, and performs shift processing for shifting the second image in a horizontal or vertical direction to generate a shift image,
• wherein the arithmetic processing unit:
• calculates a similarity degree between a first image included in the first video signal and the scaling image, and calculates a similarity degree between the first image and the shift image,
• uses the scaling image or the shift image having the higher calculated similarity degree as an image to be subjected to the next scaling processing and the next shift processing in the second video adjusting unit.