Travel speed calculation device and travel speed calculation method

摘要

#$%^&*AU2019202850A120190516.pdf#####ABSTRACT According to one embodiment, a travel speed calculation device includes an acquisition unit, an inter-vehicle distance calculator, a relative speed calculator, a travel speed calculator, and a determination unit. The travel speed calculator calculates a travel speed of another vehicle based on a travel speed of a probe vehicle and a relative speed of another vehicle relative to the probe vehicle. The determination unit determines change of another vehicle based on a frame at a former time and a frame at a latter time, and inhibits the travel speed calculator from calculating a travel speed of another vehicle based on a relative speed in the case where another vehicle is changed.1/5 FIG.1 101 102 100 FIG.2 100 s 2 01 CAMERA IMAGE ACQUISITION UNIT 1 5202 [ IMAGE 5209 PROCESSOR STORAGE 5203 INTER-VEHICLE 208 5206 DISTANCE ANALYSIS UNIT ABSOLUTE SPEED RELATIVE SPEED CALCULATOR CALCULATOR __5_204 VEHICLE CHANGE 207 DETERMINATION UNIT VEHICLE SPEED DETECTOR 205 TIME MANAGEMENT UNIT