Headlight control device, headlight control system, and headlight control method

A headlight control method performed by a headlight control device that controls light distribution of a headlight, configured to change a light distribution pattern, mounted on a vehicle, the headlight control method comprising:

• calculating visual visible saliency on a basis of luminance, color or direction of imaging signals indicating ahead of the vehicle and generating by applying deep learning including a neural network, a saliency map indicating a distribution pattern of a gaze region that is a region easily gazed by a driver of the vehicle on a basis of the calculated visual saliency;
• determining a scene that is a situation in which the vehicle is traveling on a basis of a distribution pattern of gaze regions indicated by the saliency map generated by calculating probability density distribution of gazes in a horizontal direction and a vertical direction on a basis of the visual saliency map and by evaluating features of the calculated probability density distribution;
• and
• determining the light distribution pattern of the headlight on a basis of the scene determined, and outputting a light distribution control signal for controlling the headlight to emit light in the determined light distribution pattern,
• wherein the headlight is controlled such that the light distribution pattern is changed based on the output light distribution control signal to irradiate an object in the gaze region with light.