System and method for detecting a vehicle in night time

A system implemented in a host vehicle for detecting a target vehicle in night time, said system comprising:

• an input unit comprising:
• an image sensor for imaging a field of view of a host vehicle;
• and
• a radar sensor operable to detect a target vehicle ahead of the host vehicle;
• a processing unit operatively coupled to the input unit, the processing unit comprising a processor coupled with a memory, the memory storing instructions executable by the processor to:
• receive radar data, pertaining to the target vehicle, detected by the radar sensor, wherein the radar data comprises at least a lateral distance and a longitudinal distance of the target vehicle from the host vehicle;
• map the received radar data in an image received from the image sensor to obtain a radar map point in said image, wherein the radar map point is obtained by compensating an offset error pertaining to height of the target vehicle, said offset error being determined based on at least the longitudinal distance of the target vehicle from the host vehicle;
• detect a position of the target vehicle in the image received from the imaging sensor by processing the image;
• determine an association between the radar map point and detected position of the target vehicle in the image by detecting a search region in the image, said search region being detected based on at least the longitudinal distance of the target vehicle from the host vehicle;
• and
• confirm the obtained radar map point as the position of the target vehicle in the image based on computation of a threshold value, said threshold value being determined using the detected search region.