CN210120610U

CN210120610U - Imaging information processing system

Info

Publication number: CN210120610U
Application number: CN201920993565.2U
Authority: CN
Inventors: 邓盛翔
Original assignee: Shenzhen Chang Long Xin Electronics Co Ltd
Current assignee: Shenzhen Chang Long Xin Electronics Co Ltd
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2020-02-28
Anticipated expiration: 2029-06-28

Abstract

The utility model discloses an imaging information processing system, the utility model discloses but wide application in the visual system field, include: the device comprises a visual sensor module, an image signal processing module and an MCU module. The visual sensor module is used for acquiring image information; the image signal processing module is electrically connected with the visual sensor module and is used for processing image signals according to the image information; the MCU module is electrically connected with the image signal processing module and controls the visual sensor module by the image signal processing module so as to realize self-adaptive backlight compensation. The utility model discloses an above system has overcome among the prior art defect such as backlight, overexposure, exposure inadequately, color cast, has realized still can obtain the effect of good image under special conditions.

Description

Imaging information processing system

Technical Field

The invention relates to the field of vision systems, in particular to an imaging information processing system.

Background

AE: the abbreviation of English Automatic Exposure, explained as Automatic Exposure;

with the rapid development of computer technology, electronic communication technology and network technology, the importance of identity recognition is increasingly prominent. The visual image is used as an important way for identity recognition, a great deal of information is brought to people, and the quality of the visual image seriously influences the visual effect.

In the prior art, problems of backlight, overexposure, underexposure, color cast and the like can occur during identification imaging.

Due to the limitation of the used image processing system, clear and accurate imaging effect cannot be realized. With the development of technology, the requirements for processing imaging information are higher and higher.

In view of the above problems, the present invention provides an imaging information processing system.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, an object of the present invention is to provide an imaging information processing system, which can solve the problems of backlight, overexposure, underexposure, color cast, etc. during the imaging process of a visual image source, and ensure that the visual image source can still obtain good imaging effect under the special conditions of backlight, black and white contrast, etc.

Therefore, the technical scheme adopted by the invention is as follows:

the present invention provides an imaging information processing system, including:

the device comprises a visual sensor module, an image signal processing module and an MCU module;

the vision sensor module is used for acquiring image information, and the image signal processing module is electrically connected with the vision sensor module and is used for processing image signals according to the image information; the MCU module is electrically connected with the image signal processing module and controls the visual sensor module with the image signal processing module so as to realize self-adaptive backlight compensation.

Further, the system comprises an IR-CUT module, a vision sensor module and a control module, wherein the IR-CUT module is used for filtering light waves received by the vision sensor module; the module comprises a driving unit, an infrared cut-off or absorption filter and a full-transmission spectrum filter; the driving unit is used for controlling the switching between the infrared cut-off or absorption filter and the full-transmission spectrum filter.

The LED light supplement system further comprises an LED light supplement module, wherein the LED light supplement module comprises an LED lamp group, and the LED lamp group consists of 9 LED lamps; and the input end of the LED light supplementing module is electrically connected with the output end of the MCU module and is used for supplementing light to an imaging body according to an output instruction of the MCU module.

Further, the vision sensor module adopts a CMOS vision sensor, and the model of the CMOS vision sensor is AR0130 CS.

Further, the image signal processing module adopts a DSP chip, the model of the DSP chip is AP0100CS, and the DSP chip can be combined with a CMOS vision sensor product to enable imaging to have high resolution and Standard Dynamic Range (SDR) or Wide Dynamic Range (WDR).

The invention has the beneficial effects that:

the invention overcomes the defect that the main body is insufficiently exposed and blackened when the back surface has strong light by adopting the self-adaptive backlight compensation, thereby generating a backlight image. In addition, the IR-CUT module is adopted, which is equivalent to wearing glasses on the CMOS vision sensor to filter infrared light invisible to human eyes, thereby overcoming the technical problem of color cast in the prior art, realizing the effect that the image seen by the vision sensor is consistent with the image seen by the human eyes, and realizing the effect of ensuring the naturalness and smoothness of the whole image.

Drawings

FIG. 1 is a block diagram of an embodiment of an imaging information processing system;

fig. 2 is a face target value threshold value segment setting coordinate diagram of an imaging information processing system.

Detailed Description

The present invention will be described with reference to examples.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

As shown in fig. 1, an imaging information processing system includes: the system comprises a vision sensor module, an image signal processing module, an MCU module, an IR-CUT module and an LED light supplementing module; the vision sensor module is used for acquiring image information; the image signal processing module is electrically connected with the visual sensor module and is used for processing image signals according to the image information; the MCU module is electrically connected with the image signal processing module and controls the visual sensor module with the image signal processing module so as to realize self-adaptive backlight compensation.

The method adopts a histogram equalization method and an automatic exposure combined method to complete backlight compensation, an image is divided into 25 areas, exposure emphasis is placed in the center of a screen by giving different weights to brightness accumulated values of all the areas, and exposure parameters are adjusted through AE; and reading the independent exposure value of each area, matching the target value of the human face, and positioning the target of the human face. The imaging implementation effect is shown in fig. 2, the abscissa represents the brightness gain value, the ordinate represents the AE brightness value, the curve 1 represents the face image exposure value, the curve 2 represents the face image AE target brightness value, and the closer the curve 1 and the curve 2 are, the better.

Further comprising an IR-CUT module for filtering light waves received by the vision sensor module; the module comprises a driving unit, an infrared cut-off or absorption filter and a full-transmission spectrum filter; the driving unit is used for controlling the switching between the infrared cut-off or absorption filter and the full-transmission spectrum filter; the IR-CUT module switching mode adopts self-adaptation; the IR-CUT module is switched into the infrared CUT filter to work in the daytime, and is switched into the full-transmission filter to work at night.

The LED light supplement module comprises an LED lamp group consisting of 9 LED lamps; and the input end of the LED light supplementing module is electrically connected with the output end of the MCU module and is used for supplementing light to an imaging body according to an output instruction of the MCU module. The back side has strong light during visual imaging, which can cause the main body to be underexposed and blackened, thereby causing the generation of backlight images. At this time, the backlight compensation processing needs to be performed on the image, the brightness of the interested area is improved by using the LED lamp in the LED light supplement module, and the naturalness and the smoothness of the whole image are ensured.

The vision sensor module adopts 1/3-inch and 130-ten-thousand-pixel CMOS vision sensors, the image signal processing module adopts an image processing DSP chip for strengthening the visual effect, the model of the DSP chip is AP0100CS, and YUV422 low-8-bit video signals are output. And the MCU module is used for converting an exposure value of the image imaged by the vision sensor module into corresponding illumination and controlling the IR-CUT module.

The imaging implementation effect is shown in fig. 2, the abscissa represents the brightness gain value, the ordinate represents the AE brightness value, the curve 1 represents the face image exposure value, the curve 2 represents the face image AE target brightness value, and the closer the curve 1 and the curve 2 are, the better.

While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. An imaging information processing system, comprising: the device comprises a visual sensor module, an image signal processing module and an MCU module;

the vision sensor module is used for acquiring image information;

the image signal processing module is electrically connected with the visual sensor module and is used for processing image signals according to the image information;

the MCU module is electrically connected with the image signal processing module and controls the visual sensor module with the image signal processing module so as to realize self-adaptive backlight compensation.

2. The imaging information processing system of claim 1, further comprising an IR-CUT module for filtering light waves received by the vision sensor module; the IR-CUT module comprises a driving unit, an infrared CUT or absorption filter and a full-transmission spectrum filter; the driving unit is used for controlling the switching between the infrared cut-off or absorption filter and the full-transmission spectrum filter.

3. The imaging information processing system of claim 1, further comprising an LED fill-in module, wherein the LED fill-in module comprises an LED lamp group, and the LED lamp group comprises 9 LED lamps; and the input end of the LED light supplementing module is electrically connected with the output end of the MCU module and is used for supplementing light to an imaging body according to an output instruction of the MCU module.

4. The imaging information processing system of claim 1, wherein the image signal processing module adopts a DSP chip, and the model of the DSP chip is AP0100 CS.

5. The imaging information processing system of claim 1, wherein the vision sensor module is a CMOS vision sensor model AR0130 CS.