The invention discloses a depth information measurement method based on a single-frame composite network template, and mainly solves the problems that an existing time coding method consumes too longtime, cannot dynamically measure scene depth information and is low in depth information density. According to the scheme, the method comprises steps of designing a single-frame composite network template P; projecting P to a target object, and shooting the target object to obtain a deformed image; transmitting the deformed image to a computer so as to separate a codeword graph I '2 and a line segment grid graph I' 1 from the deformed image; performing line extraction by utilizing the separated line segment grid chart I '1 to obtain a line segment grid chart; decoding according to the separated codeword graph I '2, and solving a line segment matched with the template by decoding the codeword at the intersection point of the horizontal line segment and the vertical line segment; and calculating the depth information value of the to-be-measured object according to the line-plane intersection principle by utilizing the corresponding relation between the line segments. The method can dynamically obtain scene depth information, is high in data precision, and can be used for industrial monitoring, medical science, man-machine interaction, virtual reality and 3D printing.
Depth information measurement method based on single-frame dense shape coding