Environment complexity calculation device, environment recognition degree estimation device and obstacle alarm device

摘要

PROBLEM TO BE SOLVED: To support obstruction recognition efficiently and accurately without presenting a driver with excessive information. SOLUTION: A microcomputer 70 divides a pickup image produced by an obstruction imaging CCD camera 21 into regions A to D, and computes complexity C of traffic environment in each of the regions B to D according to the following expression: C=.C1+.C2+.C1.C2, where the index C1 represents a total number of brightness-divided blocks, the index C2 represents a total number of red-system-divided blocks, and , and are weight coefficients of respective given values.