A device for extracting footprints on indoor hard floors and desktops

Abstract

The invention provides a device for obtaining footprints on the indoor hard ground and a tabletop. The device comprises a casing, an imaging system, a wiring trough, a mobile power supply and a tablet personal computer, wherein foot pads are arranged on the bottom surface of the casing; a lateral lifting handle is arranged on the lateral surface of the casing; an upper lifting handle is arranged on the upper surface of the casing; the imaging system is arranged in the casing; two ends of the wiring trough are respectively connected with the casing and the imaging system; the mobile power supply is arranged above the casing, penetrates through a power supply lead in the wiring trough and is connected with the imaging system; the tablet personal computer is arranged above the casing and is connected with the imaging system through a USB (Universal Serial Bus) control line penetrating in the wiring trough. According to the device with the structure for obtaining the footprints on the indoor hard ground and the tabletop, the defects of human operation are avoided, the quality of a footprint image is improved, and reliable image information is provided for identification and analysis at a later period.

Description

technical field [0001] The invention relates to a footprint extraction device, in particular to an indoor hard floor and desktop footprint extraction device. Background technique [0002] At present, there is no special integrated portable device for extracting on-site footprint images on hard flat ground such as floor tiles and floors that are common indoors and on the table. There is only the traditional manual operation method of cameras and lights that has been followed for many years. The core requirement of this method is to have an effective lighting angle for the on-site footprint, and to shoot at a certain receiving angle. [0003] The existing indoor on-site footprint photography extraction method mainly adopts the method of police strong light from different angles and camera to take pictures. It is all manually operated, and the images produced vary by on-site operators. The common problems are: [0004] 1. The shooting angle is tilted, resulting in deformation ...

AI Technical Summary

Problems solved by technology

[0004] 1. The shooting angle is tilted, resulting in deformation of the captured footprint image;

[0005] 2. The normal lighting in the on-site room will make the floor pattern also be clearly imaged at the same time, which interferes with the effective footprint image;

[0006] 3. Some footprints cannot be imaged due to unreasonable lighting or shooting angles

[0007] The above problems will interfere with the normal footprint image information, reduce the quality of the footprint image, and bring obstacles to the later identification and analysis

Images