CN202422153U

CN202422153U - Device for detecting quantity, places and movements of human bodies by video

Info

Publication number: CN202422153U
Application number: CN2012200878563U
Authority: CN
Inventors: 冯振
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-01-10
Filing date: 2012-03-12
Publication date: 2012-09-05
Anticipated expiration: 2022-03-12
Also published as: CN103198290A

Abstract

The utility model discloses a device for detecting quantity, places and movements of human bodies by video. A plurality of illuminators are laid on the background of a detection area; video acquisition equipment is used for acquiring images of the detection area; whether one human body is in the places of the illuminators can be identified as long as whether the human body shields a part of the images of the illuminators is judged, and the further, the place of the human body is judged; and the movement conditions of the human body can be judged out according to the shielded conditions of the illuminators when passing through multiple time points. By virtue of the device, the difficulty in the video detection algorithm of the quantity, the places and the movements of the human bodies can be greatly lowered and the accuracy in the video detection algorithm of the quantity, the places and the movements of the human bodies can be enhanced greatly.

Description

A kind of Video Detection human body quantity and position and mobile device thereof

Affiliated technical field

The present invention relates to a kind of Video Detection human body quantity and position and mobile device thereof, especially is video human quantity and the position and the mobile device thereof of aid identification sign with the reflecting body.

Background technology

Carry out human body quantity and position and mobile method and apparatus thereof through video capture device and characteristics of human body's identification at present; Influenced greatly by ambient light; And the partes corporis humani position analyzed cause data volume big; More depend on the very correctness of complicated algorithm, so accuracy rate is very low, testing result is unreliable.

Summary of the invention

In order to overcome present human body quantity and position and mobile detection method thereof and the deficiency of device; The present invention provides a kind of device; Can human body quantity and position and mobile Video Detection algorithm difficulty thereof greatly be reduced, improve human body quantity and position and mobile Video Detection algorithm accuracy thereof greatly.

The technical solution adopted for the present invention to solve the technical problems is: on the surveyed area background, laying several can be with parallel it comes to the reflecting body that reflects back of light; Majority as reflecting body, is gathered this area image with video capture device with corner reflector in the practice, exists together at video capture device and installs light source additional; The directive reflecting body; Reflecting body will be according to this direction with in this specific frequency spectrum light reflected back video capture device camera lens, because passive luminous, the imaging of reflecting body on video capture device will be very big with the colour difference of the surveyed area that does not have reflecting body; When human body is between video capture device and certain reflecting body; This reflecting body light can be blocked, so just contains the reflecting body image as video labeling in this video, also contains the image that human body has blocked reflecting body; The image that human body has blocked reflecting body will be different from the image that does not have human body to block greatly; Just nobody blocks and has the people to block under the situation, and the colour of reflecting body scope interior pixel can great changes have taken place, and this variation is highly susceptible to being discerned by video image identification algorithm.

Video storage treatment facility and program can be utilized the image of having stored and the image contrast that detects the moment that do not have to contain under the human body situation whole reflecting bodys, calculate the quantity that reflecting body is blocked, and then calculate the human body quantity of surveyed area this moment; Also can utilize the position of the relative reflecting body sign of human body to confirm everyone body position; If position of human body in the zone in a plurality of moment is compared, with the mobile message that obtains human body.

The invention has the beneficial effects as follows; Utilize utilizable marker when laying reflecting body as the human body video identification; Can human body quantity and position and mobile Video Detection algorithm difficulty thereof greatly be reduced; Improve human body quantity and position and mobile Video Detection algorithm accuracy thereof greatly, thereby control the number of crowded places such as similar cinema, dancing hall, market more reliably.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further specified.

Fig. 1 is the synoptic diagram of first embodiment of the invention.

101 reflecting bodys among the figure, 102 cameras, 103 human bodies, 104 light sources, 105 reflecting bodys that are blocked.

Embodiment

In a synoptic diagram embodiment illustrated in fig. 1; Some 101 reflecting bodys are distributed in the background of monitored area; In response to the irradiation of 104 light sources reflection or inspire light; When 103 human bodies are between certain reflecting body and video capture device 102 cameras; The light that 101 reflecting bodys send can not directly be received by 102 cameras, so the colour of the pixel in the image of this reflecting body position or this reflecting body zone can great changes have taken place when not having human body to block, therefore is highly susceptible to being discerned by image recognition algorithm.The camera lens of 102 cameras of this embodiment can install optical filter additional, only allows the light of the frequency spectrum that 101 reflecting bodys are sent to pass through, and can reduce the interference of disturbance on every side greatly like this.

Claims

1. a Video Detection human body quantity and position and mobile device thereof; It is characterized in that on the surveyed area background laying several can be with parallel it comes to the reflecting body that reflects back of light; Gather this area image with video capture device; Exist together at video capture device and to install luminophor additional; The directive reflecting body, reflecting body will be according to this direction with in this specific frequency spectrum light reflected back video capture device camera lens, so the image brilliance of the reflecting body that in video capture device, forms is very strong; The imaging of reflecting body on video capture device will be very big with the colour difference of the surveyed area that does not have reflecting body; Video analysis software can be utilized partial image identification human body that whether human body in the image the block reflecting body position of this reflecting body relatively, can judge the quantity and the position of human body in the zone, also can judge the situation of movement of human body through the situation that point reflection body for a long time is blocked.

2. a kind of Video Detection human body quantity as claimed in claim 1 and position and mobile device thereof; It is characterized in that luminophor can send the light of specific frequency spectrum; Simultaneously, the video capture device camera lens installs optical filtering additional, only lets the light of frequency spectrum of luminophor emitted light pass through; Through selecting and the big luminophor light of surveyed area ambient light spectral difference distance, make the imaging of reflecting body and surveyed area background that very big difference arranged.

3. a kind of Video Detection human body quantity as claimed in claim 1 and position and mobile device thereof is characterized in that having a plurality of video capture devices, can contrast each other.