Signal processing device, signal processing method, and sensor device

A signal processing method comprising:

• inputting, by a signal processing device, an event image that is an image indicating an event detection result by an event detection pixel group including a plurality of event pixels that detect, as an event, a change in an amount of light received by a light receiving element by a predetermined amount or more;
• and performing edge emphasis processing on the event image on a basis of an edge direction of a subject detected on a basis of a grayscale image obtained by a grayscale pixel group including a plurality of grayscale pixels that detect an amount of light received by a light receiving element by a grayscale value of a predetermined level.

A sensor device comprising:

• a pixel array section in which an event detection pixel group including a plurality of event pixels that detect, as an event, a change in an amount of light received by a light receiving element by a predetermined amount or more is formed, and
• a first edge emphasis section that inputs an event image that is an image indicating an event detection result by the event detection pixel group in the pixel array section, and performs edge emphasis processing on the event image on a basis of an edge direction of a subject detected on a basis of a grayscale image obtained by a grayscale pixel group including a plurality of grayscale pixels that detect an amount of light received by a light receiving element by a grayscale value of a predetermined level.