APPARATUS AND METHOD CONTROLLING VEHICLE COLLISION

PURPOSE: A vehicle collision warning control device and method are provided to warn the possibility of vehicle collisions based on the variation of warning logic critical values with the reflection of the velocity of a front vehicle or the velocity of a running vehicle, thereby preventing vehicles from colliding into each other. CONSTITUTION: A vehicle collision warning control device includes a brake light recognition part(103), a velocity-distance estimating part(104), a critical value setting-TTC(Time To Collision) calculating part(105), and a collision determining part(106). The brake light recognition part recognizes the brake lights of a front vehicle detected from a front video, and determines whether or not the brake lights are turned on. The velocity-distance estimating part measures a relative distance between the front vehicle and a running vehicle, and estimates the velocity of the front vehicle by calculating a relative velocity based on the relative distance. The critical value setting-TTC calculating part calculates TTC values using the relative distance and velocity, varies critical values for warning with reflecting collision time values calculated according to whether or not the brake lights are turned on. The collision determining part whether or not collision into the front vehicle is generated based on the varied critical values, and warns the collision into the front vehicle or actuates brakes according to determined results from the collision determining part. The brake light recognition part analyzes the color information of the brake lights of the detected front vehicle, detects the number of pixels having red-luminosity more than a predetermined reference value based on the color information, and then determines whether or not the brake lights are turned on. The critical value setting-TTC calculating part identifies whether or not the brake lights are turned on, and increases the critical values in response to the velocity of the running vehicle when the brake lights of the front vehicle are turned on, or decreases the critical values in response to the velocity of the running vehicle when the brake lights of the front vehicle are turned off. [Reference numerals] (101) Image acquisition unit; (102) Vehicle detection unit; (103) Brake light; (104) Recognition part vehicle velocity-distance estimating part; (105) Critical value setting-TTC calculating part; (106) Collision determining part; (107) Alarm part; (108) Braking part