Gets face detection results for a Rekognition Video analysis startedby .Show details from next link. https://docs.aws.amazon.com/ja_jp/cli/latest/reference/rekognition/get-face-detection.html
| aws rekognition get-face-detection --job-id xxxxxxx |
| amazon web services - Extract faces from video using AWS Rekognition - Stack Overflow : http://stackoverflow.com/questions/47919331/extract-faces-from-video-using-aws-rekognition |