Depth image contour line-based indoor human body detection method

The invention discloses a depth image contour line-based indoor human body detection method. The method includes the following steps that: A, depth image information is obtained; B, the three-dimensional contour lines of a depth image are obtained; C, top-layer three-dimensional contour line head center positioning is carried out; D, deep secondary detection is carried out; E, sub high layer human center positioning is carried out; F, a marked contour line outline is compared with the outline of a built-in human head depth image, so that false detection can be excluded; and H, human body positions of different heights in the depth image information can be marked based on the calculation of the steps from C to F. With the method of the invention adopted, poor user experience and poor applicability caused by a detection method can be avoided, and human body detection speed can be improved, and detection accuracy is enhanced.