PROBLEM TO BE SOLVED: To provide a brain activity estimation device capable of easily estimating the brain activity of a human.SOLUTION: A brain activity estimation device 10 comprises: image data acquisition means 20; and brain activity estimation means 30. The image data acquisition means 20 chronologically acquires photographed image data for a face of a human. The brain activity estimation means 30 comprises a RGB processing unit 31, a blood circulation amount calculation unit 33, and an estimation unit 35. The RGB processing unit 31 performs RGB processing for decomposing into three color components including a R component, a G component and a B component on the photographed image data acquired by the image data acquisition means 20. The blood circulation amount calculation unit 33 calculates chronological blood circulation amount data for the face, based on the RGB data of the photographed image data acquired by the RGB processing. The estimation unit 35 estimates a brain activity of a human based on plural components acquired by decomposing the blood circulation amount data by singular value decomposition, main component analysis, or independent component analysis.SELECTED DRAWING: Figure 8
BRAIN ACTIVITY ESTIMATION DEVICE