Plucking images from the stream of consciousness. 
This version requires a net implanted beneath the skull. With technology following its usual course the next iteration will be some sort of wearable, and in a few years a Nimrod or AWACs flying overhead will be hoovering up your thoughts.
“Spontaneous Decoding of the Timing and Content of Human Object Perception from Cortical Surface Recordings”
http://journals.plos.org/ploscompbiol/article?id=10.1371/journal.pcbi.1004660