Driver assistance system and operation method thereof

A driver assistance system, comprising:

• a first processor configured to receive a radar signal from a radar and detect one or more first objects based on the radar signal to determine whether to generate a laser beam;
• a second processor configured to receive a camera signal from a camera and detect one or more second objects based on the camera signal to determine whether to generate the laser beam;
• a laser controller configured to control a beam generator to radiate the laser beam in response to a laser beam generation request signal generated by the first processor or the second processor;
• a segmentation unit configured to extract one or more first segments corresponding to the one or more first objects and one or more second segments corresponding to the one or more second objects, in response to determination to generate the laser beam from the first processor or the second processor;
• a mapping unit configured to map at least one of the first segments and at least one of the second segments;
• a classification unit configured to classify a target object based on an image signal in which the mapping is completed and determine a possibility of collision with the target object;
• and
• a vehicle controller configured to control a vehicle drive device based on the possibility of collision,
• wherein the first processor is configured to:
• obtain at least one information among signal intensity information, distance information, Doppler information, and azimuth angle information about each of the one or more first objects,
• estimate a radar cross section (RCS) value for each of the one or more first objects based on the at least one information to:
• continue receiving the radar signal, when the RCS value is less than a reference RCS value, and
• estimate a speed of each of the one or more first objects, when the RCS value is greater than or equal to the reference value,
• generate the laser beam generation request signal, when the speed is less than a reference speed, and
• provide the vehicle controller with a first control signal for controlling the vehicle drive device based on the at least one information, when the speed is greater than or equal to the reference speed.