How to generate the annotation file like"example.csv"

[sucaohan]

Hello,I have downloaded the JHMDB dataset,but I don't know how to generate the annotation file like"example.csv",can you tell me?

[agethen]

Sorry for the late answer!

You will need to write your own script for that. The field id is the video name; actions is a collection of actions class ts te separated by ';', where ts is the start time and te the end time. Finally, length is the length of the video in seconds.

For many action recognition datasets, no ts or te are given, so you may just set them to 0.0 and the length of the video (in s).

Your code could look sth like this (python):

lines_annotation = [l.strip() for l in open( INPUT_FILE )]
output_file = open( OUTPUT_FILE, 'w' )

output_file.write( "id,actions,length\n" )
for l in lines_annotation:
  tokens = l.split( ... ) # Split by some character. Which one depends on dataset.
  video_name = tokens[ ... ]
  class_id = ...
  ts = ...
  te = ...
  len_in_s = ...
  output_file.write( video_name + "," + class_id + " " + ts +  " " + te + "," + len_in_s + "\n" )
output_file.close()