Abstract:
An object detection apparatus comprises: wireless-signal transmitting-receiving circuitry that transmits a wireless signal to a road mirror among one or more road mirrors provided at predetermined locations and receives a reflected-wave signal reflected by the road mirror, and control circuitry that detects the road mirror among the one or more road mirrors, and detects the presence of a moving object in accordance with (A) the transmitted wireless signal, and (B) the reflected-wave signal, which includes a signal received by the wireless-signal transmitting-receiving circuitry when at least part of the transmitted wireless signal is reflected by the road mirror and then reaches the moving object and is reflected by the moving object and then reaches the road mirror and reflected by the road mirror and then reaches the object detection apparatus.
Abstract:
A bias circuit comprises: a first circuit that comprises a first resistor and a decoupling capacitor; a bias voltage generation circuit that comprises a first transistor being connected to the first circuit; one or more switches; a first replica circuit comprising a second circuit and a second transistor, the second circuit comprising a second resistor and a capacitor, the second transistor being connected to the second circuit; a second replica circuit comprising a third transistor; a comparator that makes a comparison between a pseudo-bias voltage and a reference voltage; and a control circuit that controls the one or more switches on the basis of the comparison result to reduce the amount of the current flowing through the first transistor.
Abstract:
There is provided a detection device that includes: a position estimator that estimates a candidate position of a crosswalk in a movement direction of a vehicle and estimates a length of the crosswalk and an intersecting angle between the crosswalk and a roadway using the candidate position; a corrector that corrects the numbers of periods and widths of two basis functions based on the estimated length of the crosswalk and the estimated intersecting angle, the two basis functions corresponding to intervals of white lines of the crosswalk and are orthogonal to each other; and a crosswalk detector that detects whether or not the crosswalk is present using both image data which include the candidate position and the two corrected basis functions.