METHOD FOR AUTOMATICALLY CORRECTING A REFERENTIAL VANISHING POINT AND AN IMAGE RECOGNIZING DEVICE USING THE SAME, CAPABLE OF AUTOMATICALLY CORRECTING THE REFERENTIAL VANISHING POINT ACCORDING TO THE VARIATION OF A MOUNTING ANGLE FOR A CAMERA AND THE VARIANCE OF LOAD DISTRIBUTION ON A VEHICLE

摘要

PURPOSE: A method for automatically correcting a referential vanishing point and an image recognizing device using the same are provided to correct the referential vanishing point with adapting to the variation of an angle in mounting a camera or the variance of a load on the front and the rear of a vehicle, thereby maximally reducing lane recognition errors due to variation between the referential vanishing point and an actual vanishing point.;CONSTITUTION: A method for automatically correcting a referential vanishing point includes the following steps: a step(a) of recognizing both lanes of a vehicle driven at over a predetermined velocity; a step(b) of determining whether or not the width of the recognized lanes is within a predetermined range; a step(c) of determining whether or not the present road of the lanes is a straight line when the step(b) is satisfied; a step(d) of determining whether or not difference between angles between the lanes and a horizontal line is within a predetermined angle when a step(c) is satisfied; and a step(e) of computing and storing a vanishing point when the step(d) is satisfied; a step(f) of repeating the previous steps((a) to (e)) in order to allow the number of frames for the vanishing points to reach a predetermined number, computing the average value of the stored vanishing points, and then storing the average value as the referential vanishing point.;COPYRIGHT KIPO 2013;[Reference numerals] (AA) Start; (BB) End; (ST100) Recognize both lanes with image recognizing device; (ST110) Calculate the width of the lane; (ST120) Is the width within a predetermined range?; (ST130) Straight or curve section?; (ST140) Is the angle difference between both the lanes within a predetermined range?; (ST150) Compute and store a vanishing point; (ST160) Allow the number of frames for the vanishing points to reach a predetermined number?; (ST1700) Store the average value as the referential vanishing point.