| 摘要 |
Problem: To expand an image or video at predetermined expansion rates, thereby enabling a viewer to view the image or video at the original aspect ratio when viewing the image or video from an oblique direction, making the image or video easy to see. Solving means: View direction detection section 101 detects the direction from which a viewer, who is a fellow passenger of a vehicle, views the display surface of display section 105 . Expansion rate control section 103 controls expansion rates so as to select the expansion rates that correspond to the detected direction from which the viewer views the display surface and expand the image or video using the selected expansion rates. Signal processing section 104 , in accordance with the control performed by expansion rate control section 103 , expands the image or video at the expansion rates selected by expansion rate control section 103 . Display section 105 displays the expanded image or video.
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