How can I get a post title from a full URL?

I’d like to be able to programmatically retrieve a post title if I know the URL of the post. For example, let’s say I know the URL:

http://zatz.com/connectedphotographer/article/megapixels-and-digital-storage-media/

I’d like to get back:

Megapixels and digital storage media

Any tips? Oh, and it’s using the custom post type “article”.

Thanks!