I want to extract images from Vimeo videos pages. I have already gone through these links
C# regex to get video id from youtube and vimeo by url
Get img thumbnails from Vimeo?
Using jquery to dynamically load Vimeo videos
and with the help of above links I am upto this regex: vimeo.com/(?:.#|./videos/)?([0-9]+)
I am able to resolve video id (which I need to extract thumbnails) via above regex for these urls
http://vimeo.com/channels/hd#11384488
http://vimeo.com/groups/brooklynbands/videos/7906210
http://vimeo.com/staffpicks#13561592
but I am not able to get id for these type of urls:
http://vimeo.com/videoschool/lesson/20/make-a-great-holiday-video
http://vimeo.com/videoschool/lesson/38/video-101-adding-text-and-titles-with-imovie
These urls don't even contain the video id information. How can I extract video id from this? Is there any other way by which I can extract thumbnails of vimeo video by providing url?