YouTube is developing a Video Identification system which will help copyright holders identify their works on YouTube.
From the about page:
We have worked with Google to develop one-of-a-kind technology that can recognize videos based on a variety of factors… Copyright holders can choose what they want done with their videos: whether to block, promote, or even–if a copyright holder chooses to partner with us–create revenue from them, with minimal friction. YouTube Video ID will help carry out that choice.
Source: beSpacific