18. The summary content generation device according to claim 17 , wherein said specific facial expressions are expressions in which the eyes are open, or are laughing expressions, or are crying expressions.
17. The summary content generation device according to claim 1 , comprising human detection unit which analyzes video data comprised by said digital broadcast signals, detects humans appearing in images, and judges whether the humans are facing forward, and facial expression detection unit which analyzes the image data and judges the facial expression of a human detected by said human detection unit, and wherein said still image extraction unit extracts images in which specific facial expressions of humans appear as said still images.