| 摘要 |
THE PRESENT INVENTION IS PROVIDED WITH: A CAMERA (10) FOR CAPTURING AN IMAGE OF THE AREA REARWARD OF A VEHICLE, A THREE-DIMENSIONAL OBJECT DETECTION UNIT (33) FOR DETECTING A THREE-DIMENSIONAL OBJECT REARWARD OF THE VEHICLE BASED ON THE ACQUIRED IMAGE, A LENS CLEANING DEVICE (100) FOR CLEANING A LENS (11) OF THE CAMERA (10) USING CLEANING FLUID ACCORDING TO A PREDETERMINED LENS CLEANING STEP, A LENS STATE ASSESSMENT UNIT (38) FOR ASSESSING WHETHER THE STATE OF THE LENS (11) IS A PREDETERMINED STATE SUBJECT TO CONTROL BASED ON THE TIMING AT WHICH CLEANING FLUID IS SPRAYED ON THE LENS IN THE LENS CLEANING STEP, AND A CONTROL UNIT (39) FOR SUPPRESSING THREE-DIMENSIONAL OBJECT DETECTION WHEN THE LENS STATE IS ASSESSED AS BEING A STATE SUBJECT TO CONTROL BY RETAINING, FOR A PREDETERMINED LENGTH OF TIME, DETECTION OR ASSESSMENT RESULTS FROM IMMEDIATELY BEFORE THE LENS STATE WAS ASSESSED AS BEING A STATE SUBJECT TO CONTROL. |
