초록 ▼

An object recognition system including a radar, an image sensor and a controller is provided. The radar determines the position of an object, and the image sensor captures an image of the object. The controller sets a processing area within the image captured by the image sensor based on the positio

An object recognition system including a radar, an image sensor and a controller is provided. The radar determines the position of an object, and the image sensor captures an image of the object. The controller sets a processing area within the image captured by the image sensor based on the position of the object determined by the radar and a predetermined size for the object to be recognized. The controller extracts horizontal and vertical edges from the processing area, and preferably judges whether each of the extracted edges belongs to the object based on characteristics of the object to be recognized. The controller then recognizes the outline of the object based on the edges judged to belong to the object. The object can be recognized by determining upper, lower, left and right ends of the object. On the other hand, the controller recognizes lane lines defining the lane in which the vehicle mounting the system of the invention is running. Thus, the relative position of the object to the lane lines is determined by comparing the intersections between a horizontal line corresponding to the lower end of the object and the lane lines with the left and right ends of the object.

대표청구항 ▼

An object recognition system including a radar, an image sensor and a controller is provided. The radar determines the position of an object, and the image sensor captures an image of the object. The controller sets a processing area within the image captured by the image sensor based on the positio

An object recognition system including a radar, an image sensor and a controller is provided. The radar determines the position of an object, and the image sensor captures an image of the object. The controller sets a processing area within the image captured by the image sensor based on the position of the object determined by the radar and a predetermined size for the object to be recognized. The controller extracts horizontal and vertical edges from the processing area, and preferably judges whether each of the extracted edges belongs to the object based on characteristics of the object to be recognized. The controller then recognizes the outline of the object based on the edges judged to belong to the object. The object can be recognized by determining upper, lower, left and right ends of the object. On the other hand, the controller recognizes lane lines defining the lane in which the vehicle mounting the system of the invention is running. Thus, the relative position of the object to the lane lines is determined by comparing the intersections between a horizontal line corresponding to the lower end of the object and the lane lines with the left and right ends of the object. to said integrator to control an analog input signal to said integrator. 18. The converter of claim 17 wherein said switch passes an analog signal to the integrator for a period corresponding to a period when said clock generator pulses are toggling. 19. A method comprising: receiving an analog signal; converting a system clock that is not an integer multiple of an output sampling rate of a converter to a pseudo clock by disabling some of the system clock pulses; using said pseudo clock as a clock for a delta-sigma modulator; sampling said analog signal at a rate that is the integer multiple of the output sampling rate of the converter based on said clock; and dynamically controlling sampling of said analog signal based on a ratio of the system clock and the output sampling rate of the converter. 20. The method of claim 19 including decimating and filtering the output from said delta-sigma modulator. 21. The method of claim 19 including coupling said analog signal to an integrator and controlling the analog signal to deactivate said integrator when said pseudo clock pulses are deactivated.