Distance information analysis method based on single image

Abstract

The invention discloses a distance information analysis method based on a single image. The method comprises steps of selecting the single image, determining two target objects needing to be observed,carrying out graying of the image, building a pixel coordinate system in the image after processing, and obtaining pixel coordinates of each point in the image in subsequent demands; selecting a proper reference object from the image, and looking up the data to obtain the basic information of the reference object; positioning a target object in the image by using a cross ratio invariant principle, and restoring the relative position of a photographer by using a method of analyzing the target spatial position. The method is advantaged in that the limitation of partial information height loss in the imaging process is broken through; the method has characteristics of high identification degree, strong operability, no need of knowing related parameters of a shooting camera and the like, andrealizes distance measurement of a target object and the relative position information of the photographer on the target object; the method can well deal with emergencies or urgent need for photo information analysis, can conveniently obtain the distance information between target objects and between the photographer and the target object, and is wide in application range.

Description

technical field [0001] The invention relates to the field of visual intelligence, in particular to a distance information analysis method based on a single image. Background technique [0002] Studies have shown that 70%-80% of the information obtained by ordinary people comes from visual feedback. The main carriers of visual information are images and videos, and visual intelligence refers to information obtained through images or videos. Extracting relevant information such as the shape, distance, and speed of objects from images or videos has become one of the important contents of visual intelligence analysis. Intelligence experts can research and decrypt some current things through relevant visual information such as pictures or videos. . [0003] In the current hot new technology fields such as unmanned driving, computer vision, and drone reconnaissance, there are a large number of application requirements. Although in the design work of intelligence analysis and in...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a distance information analysis method based on a single image, which aims at solving the problem of how to quickly process the picture to extract the relevant distance information, and can realize the rapid processing of the picture, and then extract the relevant distance information for application in various urgent intelligence work

Images