Rekognition

Overview This is a memo on how to add a table of contents to videos using iiif-prezi3. Segment Detection We use Amazon Rekognition’s video segment detection. https://docs.aws.amazon.com/ja_jp/rekognition/latest/dg/segments.html Sample code is available at the following link. https://docs.aws.amazon.com/ja_jp/rekognition/latest/dg/segment-example.html Data Used We use “Prefectural News Volume 1” (Nagano Prefectural Library). https://www.ro-da.jp/shinshu-dcommons/library/02FT0102974177 Reflecting in the Manifest File We assume that a manifest file has already been created by referring to the following article. The following script adds a VTT file to the manifest file. ...

Overview This is a note on how to add annotations to videos using iiif-prezi3. Adding Annotations Amazon Rekognition’s label detection is used. https://docs.aws.amazon.com/rekognition/latest/dg/labels.html?pg=ln&sec=ft Sample code is available at the following link. https://docs.aws.amazon.com/ja_jp/rekognition/latest/dg/labels-detecting-labels-video.html In particular, by setting the aggregation in GetLabelDetection to SEGMENTS, you can obtain StartTimestampMillis and EndTimestampMillis. However, please note the following. When aggregated by SEGMENTS, information about detected instances with bounding boxes is not returned. Data Used The video “Prefectural News Vol. 1” (Nagano Prefectural Library) is used. ...