Faces reconstructed from Brainscans

Wissenschaftler können schon lange Bilder und Filme aus Brainscans und den Daten von Gehirnaktivität ablesen, dass sie daraus aber Gesichter relativ wiedererkennbar rekonstruieren können, das ist neu. Nun koppele man Brainscan-Echtzeitdaten mit Facebooks Gesichtserkennung und man hat den perfekten NSA-Agenten. Oder den Terminator, wahlweise. (Mich würde ja auch interessieren, ob sie da Face-Detection-ähnliche Algorithmen genutzt haben, die mageren Details im Posting deuten aber eher auf eine Art neurowissenschaftlich-statistische Brute Force-Methode hin. Naja.)

Using only data from an fMRI scan, researchers led by a Yale University undergraduate have accurately reconstructed images of human faces as viewed by other people. “It is a form of mind reading,” said Marvin Chun, professor of psychology, cognitive science and neurobiology and an author of the paper in the journal Neuroimage.

The increased level of sophistication of fMRI scans has already enabled scientists to use data from brain scans taken as individuals view scenes and predict whether a subject was, for instance, viewing a beach or city scene, an animal or a building. “But they can only tell you they are viewing an animal or a building, not what animal or building,” Chun said. “This is a different level of sophistication.” […]

Working with funding from the Yale Provost’s office, Cowen and post doctoral researcher Brice Kuhl, now an assistant professor at New York University, showed six subjects 300 different “training” faces while undergoing fMRI scans. They used the data to create a sort of statistical library of how those brains responded to individual faces. They then showed the six subjects new sets of faces while they were undergoing scans. Taking that fMRI data alone, researchers used their statistical library to reconstruct the faces their subjects were viewing.

Yale researchers reconstruct facial images locked in a viewer’s mind (via Gizmo)

Vorher auf Nerdcore:
Mind Readings Next Step: Filme aus Gehirnströmen auslesen
Brain Reading reads „BRAIN“ from a reading Brain
HighEnd Realtime-Visualization of Brains