OUR TECHNICAL ADVISOR, ASSOCIATE PROFESSOR TOMONORI NAGAYAMA, GAVE A LECTURE AT THE CONSTRUCTION TECHNOLOGY FORUM HELD ONLINE ON 6 FEBRUARY 2021. THE TITLE OF THE LECTURE IS "DEVELOPMENT OF QUASI-REAL TIME WIDE AREA ROAD SURFACE CRACK RATE EVALUATION TECHNOLOGY USING CAMERA INSTALLED IN VEHICLE", AND WE INTRODUCED THE CONTENTS OF OUR JOINT WORK WITH GRADUATE SCHOOL OF ENGINEERING, UNIVERSITY OF TOKYO AND NICHIREKI CORPORATION UNDER THE MATCHING PROJECT OF KANTO REGIONAL DEVELOPMENT BUREAU, MINISTRY OF LAND, INFRASTRUCTURE, TRANSPORT AND TOURISM. OUTLINE OF THE RESEARCH: IN RECENT YEARS, THERE HAVE BEEN CASES OF AUTOMATIC DETECTION OF CRACKS IN PAVEMENTS USING PHOTOGRAPHY AND AI TECHNOLOGY, BUT IT IS DIFFICULT TO ACCURATELY CALCULATE THE CRACK RATE USING GENERAL-PURPOSE PRODUCTS SUCH AS DRIVE RECORDERS INSTALLED IN THE CARS OF OFFICE AND BRANCH OFFICE STAFF. USING VIDEO IMAGE PROCESSING TECHNOLOGY, THE CRACK RATE CAN BE ACCURATELY CALCULATED. CLICK HERE TO WATCH THE VIDEO OF THE LECTURE