CN108833743A - A kind of image detection acquisition processing system - Google Patents
A kind of image detection acquisition processing system Download PDFInfo
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- CN108833743A CN108833743A CN201810479659.8A CN201810479659A CN108833743A CN 108833743 A CN108833743 A CN 108833743A CN 201810479659 A CN201810479659 A CN 201810479659A CN 108833743 A CN108833743 A CN 108833743A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/54—Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
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- Signal Processing (AREA)
- Multimedia (AREA)
- Computer Networks & Wireless Communication (AREA)
- Closed-Circuit Television Systems (AREA)
Abstract
The invention discloses a kind of image detection acquisition processing systems, including image detector, differential amplifier circuit, filter circuit, A/D converter circuit, controller, level switch module, usb interface module and host computer, host computer, for acquisition parameter to be input to controller through usb interface module；Controller controls image detector exposure process for generating detector timing through level switch module；Image detector is amplified, is filtered and digital-to-analogue conversion, be converted to data image signal and export to controller for generating photoelectric signal and be input to differential amplifier circuit, filter circuit, A/D converter circuit；Controller is transmitted to host computer through usb interface module for exporting image after handling data image signal；Host computer, for completing reception, the storage and processing of image.This system completes acquisition, storage, real-time display and the playback of image well, the operation is stable, and the bit error rate is low.
Description
Technical field
The present invention relates to technical field of data processing, especially a kind of image detection acquisition processing system.
Background technique
Image recognition technology is in numerous areas such as national security, public security, traffic, finance, industrial production line, food inspections
It is with a wide range of applications.Existing image identification system is substantially computer-oriented application, and scheme is：It is adopted using image
Truck (or straight-forward network camera access), operation image Processing Algorithm is realized in PC machine.But due to most of image recognition
System requirements data volume is big, algorithm is complicated, to requirement of real-time height, and not only volume is big, at high cost, real for the application system based on PC
When sexuality it is poor, and be not able to satisfy the demand of application circumstances (such as machine room) sometimes.
The needs of application and the deficiency of conventional images identifying system drive flourishing for smart camera, at present almost
All camera manufacturers research and develop smart camera in flower great, and traditional signal processing manufacturer is also added thereto one after another.Intelligence
A camera not instead of simple camera, a kind of microminiature NI Vision Builder for Automated Inspection of Highgrade integration.It is adopted image
Collection, processing are integrated in single camera with communication function, to provide with multi-functional, modularization, high reliability, be easy to real
Existing machine vision solution.Simultaneously as applying newest DSP、FPGA and massive store technology, intelligent journey
Degree is continuously improved, and can meet the application demand of a variety of machine vision.Smart camera is generally by image acquisition units, image procossing list
The functional units such as member, image processing software, network communication composition.Image of the smart camera very good solution based on PC platform is known
Defect of the other system in terms of volume, cost, real-time performance, while can also work in adverse circumstances.Most of machine can be met
Vision and other image recognition application fields.
But some particular images are identified and are applied, if drug detects, sorted fruits, due to the particularity of Client application demand
The customization requirement of brought image processing software, the limited explorative, DSP of the system of existing smart camera/FPGA calculates energy
Bottleneck of power etc. constrains the application and development of client.Solving the problems, such as this effective way is：By the intelligence in smart camera
Processing unit is customized to one and meets customer requirement (processing capacity, storage capacity, ability to communicate, degree of opening etc.) Special horizontal
Platform develops the application software of customization on this platform, to meet that customer data amount is big, Processing Algorithm is complicated etc. using need
It asks, to form customization (referred to as " DIY ") smart camera of client oneself.
Image detection is applied in fire detection more at present, and the principle of flame image detection is generally：First use CCD camera
Flame image is absorbed, the analog image of flame is converted to by video frequency collection card by digital picture, is obtained with SDK software development kit
Then frame image realizes the conversion of image model, the elimination of environment light, image smoothing and enhancing etc. by Digital Image Processing
Reason improves the contrast of image through gray scale stretching；Then edge detection is carried out to flame image, the color for calculating separately image is special
Sign, textural characteristics and shape feature, are finally compared differentiation.
It applies currently, the high speed camera for being used to capture high-speed motion is more and more in industry monitoring, scientific research and military project
The fields such as equipment.The core component of high speed camera is imaging sensor.Existing imaging sensor is usually active pixel sensing
Device.This sensor needs certain time for exposure to integrate faint photoelectric current, and exports picture frame according to acquisition order
Formatted data.In order to capture high-speed motion, CMOS active pixel sensor is needed with the operation of very high frame rate.In addition, user couple
Image resolution requirement is also being continuously improved.This results in the data output quantity of CMOS active pixel sensor bigger.In addition to part
The data of useful information, these outputs generally comprise very high redundancy.Wherein, redundancy is mainly static or slow
Slowly the comparison field changed.In other words, a large amount of useless background informations are constantly sampled, exported and are handled.Therefore, existing
Imaging sensor needs very high output bandwidth.In addition, when carrying out subsequent processing to institute's output data, image processing equipment
Need bigger resource consumption.
Summary of the invention
It is provided the technical problem to be solved by the present invention is to overcome the deficiencies in the prior art at a kind of image detection acquisition
Reason system, this system complete acquisition, storage, real-time display and the playback of image well, the operation is stable, and the bit error rate is low.
The present invention uses following technical scheme to solve above-mentioned technical problem：
A kind of image detection acquisition processing system proposed according to the present invention, including image detector, differential amplifier circuit, filtering
Circuit, A/D converter circuit, controller, level switch module, usb interface module and host computer, wherein
Host computer, for acquisition parameter to be input to controller through usb interface module；
Controller controls image detector exposure process for generating detector timing through level switch module；
Image detector, for generating photoelectric signal and being input to differential amplifier circuit, filter circuit, A/D converter circuit, into
Row amplification, filtering and digital-to-analogue conversion, are converted to data image signal and export to controller；
Controller is transmitted to host computer through usb interface module for exporting image after handling data image signal；It is upper
Machine, for completing reception, the storage and processing of image.
Scheme is advanced optimized as a kind of image detection acquisition processing system of the present invention, and filter circuit includes the
One to third amplifier, the first to the 6th resistance and the first to the 6th capacitor, one end of one end of first resistor and second resistance,
One end of second capacitor is separately connected, one end of the other end of second resistance and first capacitor, the first amplifier positive input terminal
It is separately connected, the other end ground connection of first capacitor, output end, the third electricity of the negative input end of the first amplifier and the first amplifier
One end of resistance, the second capacitor the other end be separately connected, one end of the other end of 3rd resistor and the 4th resistance, the 4th capacitor
One end is separately connected, and the other end and one end of third capacitor, the positive input terminal of the second amplifier of the 4th resistance are separately connected, the
The other ends of three capacitors is grounded, the output end of the negative input end of the second amplifier and the second amplifier, the 4th capacitor the other end,
One end of 5th resistance is separately connected, and the other end and one end of the 6th resistance, one end of the 6th capacitor of the 5th resistance connect respectively
Connect, the other end and the positive input terminal of third amplifier, one end of the 5th capacitor of the 6th resistance are separately connected, the 5th capacitor it is another
One end ground connection, negative input end and the output end of third amplifier, the other end of the 6th capacitor of third amplifier are separately connected.
Scheme is advanced optimized as a kind of image detection acquisition processing system of the present invention, image detector is
Cmos detector.
Scheme, control module FPGA are advanced optimized as a kind of image detection acquisition processing system of the present invention
Control module.
Scheme is advanced optimized as a kind of image detection acquisition processing system of the present invention, A/D converter circuit uses
The AD converter of AD9226.
The invention adopts the above technical scheme compared with prior art, has the following technical effects：
（1）The present invention can be quick, intuitive display image information, transmission speed is fast and error is smaller；
（2）This system completes acquisition, storage, real-time display and the playback of image well, the operation is stable, and the bit error rate is low；
（3）Captured picture is clearly true to nature, can be used for scientific research, the fields such as production, has using simple, applied widely excellent
Point.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention.
Specific embodiment
Technical solution of the present invention is described in further detail with reference to the accompanying drawing：
As shown in Figure 1, a kind of image detection acquisition processing system, including image detector, differential amplifier circuit, filter circuit,
A/D converter circuit, controller, level switch module, usb interface module and host computer, wherein
Host computer, for acquisition parameter to be input to controller through usb interface module；
Controller controls image detector exposure process for generating detector timing through level switch module；
Image detector, for generating photoelectric signal and being input to differential amplifier circuit, filter circuit, A/D converter circuit, into
Row amplification, filtering and digital-to-analogue conversion, are converted to data image signal and export to controller；
Controller is transmitted to host computer through usb interface module for exporting image after handling data image signal；It is upper
Machine, for completing reception, the storage and processing of image.
Filter circuit includes first to third amplifier, the first to the 6th resistance and the first to the 6th capacitor, first resistor
One end and one end of one end of second resistance, the second capacitor be separately connected, the one of the other end of second resistance and first capacitor
End, the first amplifier positive input terminal be separately connected, the other end of first capacitor ground connection, the negative input end of the first amplifier and the
The output end of one amplifier, one end of 3rd resistor, the second capacitor the other end be separately connected, the other end of 3rd resistor and
One end of four resistance, the 4th capacitor one end be separately connected, one end of the other end of the 4th resistance and third capacitor, the second amplification
The positive input terminal of device is separately connected, the other end of third capacitor ground connection, the negative input end of the second amplifier and the second amplifier
Output end, the other end of the 4th capacitor, the 5th resistance one end be separately connected, the one of the other end of the 5th resistance and the 6th resistance
End, the 6th capacitor one end be separately connected, the one of the positive input terminal of the other end of the 6th resistance and third amplifier, the 5th capacitor
End is separately connected, the other end of the 5th capacitor ground connection, the output end of the negative input end of third amplifier and third amplifier, the 6th
The other end of capacitor is separately connected.
Image detector is cmos detector.
Control module is FPGA control module.
A/D converter circuit uses the AD converter of AD9226.
The present invention can be quick, intuitive display image information, transmission speed is fast and error is smaller；This system is complete well
At the acquisition of image, storage, real-time display and playback, the operation is stable, the bit error rate is low；Captured picture is clearly true to nature, can
For scientific research, the fields such as production have the advantages that using simple, applied widely.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
Specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, exist
Under the premise of not departing from present inventive concept, several simple deductions or substitution can also be made, all shall be regarded as belonging to of the invention
Protection scope.
Claims (5)
1. a kind of image detection acquisition processing system, which is characterized in that including image detector, differential amplifier circuit, filtered electrical
Road, A/D converter circuit, controller, level switch module, usb interface module and host computer, wherein
Host computer, for acquisition parameter to be input to controller through usb interface module；
Controller controls image detector exposure process for generating detector timing through level switch module；
Image detector, for generating photoelectric signal and being input to differential amplifier circuit, filter circuit, A/D converter circuit, into
Row amplification, filtering and digital-to-analogue conversion, are converted to data image signal and export to controller；
Controller is transmitted to host computer through usb interface module for exporting image after handling data image signal；It is upper
Machine, for completing reception, the storage and processing of image.
2. a kind of image detection acquisition processing system according to claim 1, which is characterized in that filter circuit includes first
To third amplifier, the first to the 6th resistance and the first to the 6th capacitor, one end of one end of first resistor and second resistance,
One end of two capacitors is separately connected, one end of the other end of second resistance and first capacitor, the first amplifier positive input terminal point
It does not connect, the other end ground connection of first capacitor, output end, the 3rd resistor of the negative input end of the first amplifier and the first amplifier
One end, the second capacitor the other end be separately connected, one end of the other end of 3rd resistor and the 4th resistance, the 4th capacitor one
End is separately connected, and the other end and one end of third capacitor, the positive input terminal of the second amplifier of the 4th resistance are separately connected, third
The other end of capacitor is grounded, the output end of the negative input end of the second amplifier and the second amplifier, the other end of the 4th capacitor, the
One end of five resistance is separately connected, and the other end and one end of the 6th resistance, one end of the 6th capacitor of the 5th resistance are separately connected,
The other end of 6th resistance is separately connected with the positive input terminal of third amplifier, one end of the 5th capacitor, the 5th capacitor it is another
End ground connection, negative input end and the output end of third amplifier, the other end of the 6th capacitor of third amplifier are separately connected.
3. a kind of image detection acquisition processing system according to claim 1, which is characterized in that image detector CMOS
Detector.
4. a kind of image detection acquisition processing system according to claim 1, which is characterized in that control module is FPGA control
Molding block.
5. a kind of image detection acquisition processing system according to claim 1, which is characterized in that A/D converter circuit uses
The AD converter of AD9226.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810479659.8A CN108833743A (en) | 2018-05-18 | 2018-05-18 | A kind of image detection acquisition processing system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810479659.8A CN108833743A (en) | 2018-05-18 | 2018-05-18 | A kind of image detection acquisition processing system |
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| CN201810479659.8A Pending CN108833743A (en) | 2018-05-18 | 2018-05-18 | A kind of image detection acquisition processing system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111308194A (en) * | 2019-12-06 | 2020-06-19 | 百科荣创(北京)科技发展有限公司 | Frequency characteristic tester |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107734302A (en) * | 2017-10-27 | 2018-02-23 | 无锡七百二十度科技有限公司 | A kind of image capturing system |
| CN107864314A (en) * | 2017-11-28 | 2018-03-30 | 苏州切思特电子有限公司 | A kind of image processing system based on filter circuit |
-
2018
- 2018-05-18 CN CN201810479659.8A patent/CN108833743A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107734302A (en) * | 2017-10-27 | 2018-02-23 | 无锡七百二十度科技有限公司 | A kind of image capturing system |
| CN107864314A (en) * | 2017-11-28 | 2018-03-30 | 苏州切思特电子有限公司 | A kind of image processing system based on filter circuit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111308194A (en) * | 2019-12-06 | 2020-06-19 | 百科荣创(北京)科技发展有限公司 | Frequency characteristic tester |
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Application publication date: 20181116 |
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