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