CN208461954U - Moving target image compression sampling device - Google Patents
Moving target image compression sampling device Download PDFInfo
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- CN208461954U CN208461954U CN201820160701.5U CN201820160701U CN208461954U CN 208461954 U CN208461954 U CN 208461954U CN 201820160701 U CN201820160701 U CN 201820160701U CN 208461954 U CN208461954 U CN 208461954U
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- 238000005070 sampling Methods 0.000 title claims abstract description 23
- 230000006835 compression Effects 0.000 title claims abstract description 20
- 238000007906 compression Methods 0.000 title claims abstract description 20
- 238000003384 imaging method Methods 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 abstract description 8
- 239000013598 vector Substances 0.000 description 31
- 238000005259 measurement Methods 0.000 description 21
- 238000004891 communication Methods 0.000 description 14
- 238000012544 monitoring process Methods 0.000 description 13
- 238000010586 diagram Methods 0.000 description 10
- 101710170230 Antimicrobial peptide 1 Proteins 0.000 description 7
- 238000012545 processing Methods 0.000 description 6
- 239000011159 matrix material Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000005622 photoelectricity Effects 0.000 description 4
- 230000003068 static effect Effects 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 101710170231 Antimicrobial peptide 2 Proteins 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 3
- 238000004422 calculation algorithm Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000004590 computer program Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
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Abstract
A moving target image compression sampling device based on a linear array sensor comprises the linear array image sensor and is characterized in that the linear array image sensor is an image sensor with adjustable resolution. Utilize the device provided by the utility model can save storage space and improve transmission efficiency.
Description
Technical field
The utility model relates to a kind of mobile target image compression sampling devices, belong to technical field of image processing.
Background technique
The important research field of (Compressive Imaging, CI) as compressive sensing theory is imaged in compression, is
Lead to too small amount of measured value and reconstructs to obtain original image, most typically single pixel camera in research achievement.The camera is
The compression sampling to prospect is realized using single pixel and spatial light modulator, but the resolution of imaging sensor that this mode uses
Rate is fixed value, to increase memory capacity, and efficiency of transmission is lower.
Utility model content
To overcome disadvantage existing in the prior art, the goal of the invention of the utility model is to provide mobile target image compression
Sampling apparatus can save memory space, and improve efficiency of transmission.
To realize the goal of the invention, the utility model provides a kind of mobile target image based on linear array transducer
Compression sampling device comprising linear array image sensors are characterized in that linear array image sensors are that resolution ratio is adjustable
Imaging sensor.
Preferably, linear array image sensors include n image sampling unit, and n is the integer more than or equal to 4.
Preferably, each image sampling unit includes at least 2M electrooptical device, 4M electric-controlled switch and 1 integral
Circuit, wherein 2M electrooptical device is connected to integrating circuit through 2M electric-controlled switch in 4M electric-controlled switch respectively
Signal input part, the M are the integer more than or equal to 1.
At selection of land, 2M electrooptical device is also connected to through the other 2M electric-controlled switch in 4M electric-controlled switch respectively
The signal input part of the integrating circuit of adjacent image acquisition units.
Preferably, the on-off of 4M electric-controlled switch is controlled according to resolution ratio.
Compared with prior art, mobile target image sampling apparatus provided by the utility model, can save memory space,
And improve efficiency of transmission.
Detailed description of the invention
Fig. 1 is the composition block diagram of sentry post system provided by the utility model；
Fig. 2 is the composition block diagram of Image Acquisition terminal provided by the utility model；
Fig. 3 is the circuit diagram of linear array transducer provided by the utility model；
Fig. 4 is the flow chart of compression imaging method provided by the utility model；
Fig. 5 is the composition schematic diagram of server；
Fig. 6 is the composition block diagram of mobile terminal.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
In the description of the present invention, it should be noted that term " first ", " second " etc. are used for description purposes only,
It is not understood to indicate or imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be electrical connection, it is also possible to be connected directly, can also can also be inside two elements indirectly connected through an intermediary
Connection, for the ordinary skill in the art, can understand the tool of above-mentioned term in the present invention with concrete condition
Body meaning.
Fig. 1 is the composition block diagram of sentry post system provided by the utility model.As shown in Figure 1, hilllock provided by the utility model
Whistle system include by the server of network connection, the Image Acquisition terminal being arranged at each monitoring area (F1, F2,
... Fn) and mobile terminal (user 1, and user 2 ... user n), server may be provided at monitoring center, may also be arranged on computer room
It is interior.The network is including the use of such as Wi-Fi, Wi-Max, 3G, UMTS (General Mobile moves communication system), ISDN (integrated service
Digital network), DSL (digital subscriber line), ATM (asynchronous transfer mode), 802.11, Ethernet, InfinBand and PCI
The connection of the technologies such as Express Advanced Switching.Right agreement includes TCP/IP (transmission control in a network
Agreement/network protocol), MPLS (multiprotocol label switching), UDP (User Datagram Protocol), HTTP (hypertext transfer protocol),
SMTP (single Mail Transfer protocol), FTP (File Transfer Protocol), LDAP (Light Directory Access Protocol), CDMA (CDMA),
WCDMA (wideband code division multiple access), GSM (global system for mobile communications), HSDPA (high-speed downlink packet access) etc..In net
It includes HTML, XML etc. that the format of data is exchanged in network.Described image acquisition terminal is used to acquire by the mobile mesh at prison exploratory area domain
Target light image, and light image is converted into electrical image information, then by transmission of network to server, the server will be right
Image information acquired in Image Acquisition terminal is handled, and is shown in the big of monitoring center setting according to the model selection of user
On screen display, according to model selection, large screen display can be divided into multiple regions, each region shows corresponding monitoring
Image at region can also show the image of a certain monitor area across the screen.Server can also be by acquired figure
As information is shown in the terminal of user, the user is the authorized user of a unit, such as the related work of security department
Make the hand-held mobile terminal of the leader of the higher authorities of personnel or security department possessed, or is arranged in office
Terminal etc..
Fig. 2 is the composition block diagram of Image Acquisition terminal provided by the utility model, as shown in Fig. 2, Image Acquisition terminal can
It is described linear to include linear array transducer 100, processor, storage unit, display module, clock signal and communication module
Sensor array is used to obtain periphery, the access of the image information at monitoring area, the monitored region such as some place
Deng storage unit includes read-only memory (ROM), random access memory (RAM).Processor can be loaded into starting from ROM and refer to
It enables, then read further dos command line DOS from RAM and completes one or more logic operations, can store image in the RAM
Handle application program.Processor calls image procossing application program to press image information acquired in linear array transducer
Contracting processing, and the server or user terminal that establish the link with it are sent to by controlling communication module.Clock signal is used for
Clock signal is provided to processor；RAM can store original equipment configuration data.The component of RAM and processor can configure with
Execute various operations.
According to one embodiment, the instruction of the processor of acquisition terminal server based on the received carries out low resolution acquisition
The image at image or high-resolution acquisition monitoring area at monitoring area.This is described in detail below with reference to Fig. 3
The optional linear array image sensors 100 of resolution ratio that utility model provides.
Fig. 3 is the circuit diagram of linear array transducer provided by the utility model, as shown in figure 3, linear image array passes
Sensor 100 is the optional imaging sensor of resolution ratio.Linear array image sensors include n image sampling unit, n be greater than
Or the integer equal to 4.Each image sampling unit includes at least 2M electrooptical device, 4M electric-controlled switch and 1 product
Parallel circuit, wherein 2M electrooptical device is connected to integrating circuit through 2M electric-controlled switch in 4M electric-controlled switch respectively
Signal input part, the M is integer more than or equal to 1.M electrooptical device is also respectively through in 4M electric-controlled switch
Other 2M electric-controlled switch in M electric-controlled switch be connected to the first adjacent image acquisition units integrating circuit signal
Input terminal.M electrooptical device is also automatically controlled through another M in the other 2M electric-controlled switch in 4M electric-controlled switch respectively
Switch is connected to the signal input part of the integrating circuit of two adjacent image acquisition units.It is a automatically controlled that 4M is controlled according to resolution ratio
It switches on-off.For example, first image sampling unit includes four photodiodes D1, D2, D3 and D4, first image
Sampling unit further includes 8 electric-controlled switch S1, S2, S3, S4, S5, S6, S7 and S8, and first image sampling unit also wraps
Include integrating circuit an AMP1, the integrating circuit AMP1 include operational amplifier OF1, capacitor Cf1 and setting switch RE1,
In, the output end of operational amplifier OF1 is connected to its reverse side through capacitor Cf1, and setting switch RE1 and capacitor Cf1 is in parallel.
Photodiode D1 is connected to the inversion signal input terminal of the operational amplifier OF1 of integrating circuit AMP1 through electric-controlled switch S2；Light
Electric diode D2 is connected to the inversion signal input terminal of the operational amplifier OF1 of integrating circuit AMP1 through electric-controlled switch S4；Photoelectricity
Diode D3 is connected to the inversion signal input terminal of the operational amplifier OF1 of integrating circuit AMP1 through electric-controlled switch S6；Photoelectricity two
Pole pipe D4 is connected to the inversion signal input terminal of the operational amplifier OF1 of integrating circuit AMP1 through electric-controlled switch S8.Two pole of photoelectricity
Pipe D3 is also connected to the inversion signal input terminal of the operational amplifier OF2 of integrating circuit AMP2 through electric-controlled switch S5；Two pole of photoelectricity
Pipe D4 is connected to the inversion signal input terminal of the operational amplifier OF2 of integrating circuit AMP2 through electric-controlled switch S7.Photodiode
D1 is connected to the inversion signal input terminal of the operational amplifier of integrating circuit AMPn through electric-controlled switch S1.Photodiode D1 is also passed through
Electric-controlled switch S3 is connected to the inversion signal input terminal ... of the operational amplifier of integrating circuit AMPn, and integrating circuit AMP1's is defeated
Outlet is X1, and the output end of integrating circuit AMP2 is X2 ..., and the output end of integrating circuit AMPn is Xn, 8 electric-controlled switch S1,
S2, S3, S4, S5, S6, S7 and S8, and setting switch RE1 are controlled all in accordance with the selection mode of user, when needing high score
When resolution acquires image, then electric-controlled switch S1, S2, S3, S4, S5, S6, S7 and S8 is connected, and switch RE1 is arranged and disconnects, so
Image that can be relatively clear in full screen display；When needing low resolution to acquire image, then electric-controlled switch S1 and setting switch
RE1 conducting；S2, S3, S4, S5, S6, S7 and S8 are disconnected.In this way, a small amount of image can be acquired, and can be in large screen display region
The relatively clear image of upper display.
Linear array transducer of the utility model due to using above structure, shows on the display area of large screen
When the image of corresponding monitoring area, the data volume for needing to accept and believe greatly reduces, to improve the transmission rate of data, and saves
Memory space is saved.
According to the utility model one embodiment, image processing application journey is also stored in the memory of Image Acquisition terminal
Sequence, processor call the image processing application program in memory, carry out image with the information obtained to linear array transducer
Compression processing is described in detail below with reference to Fig. 4.
Fig. 4 is the flow chart of compression imaging method provided by the utility model, with traditional based on linear array transducer
Unlike method, context of methods is first handled compression measurement vector.Described image processing includes at least: utilizing measurement
Matrix carries out compression sampling to the information of mobile target acquired in linear array transducer and obtains compression measurement vector, to compression
Measurement vector carries out the duplicate measurement vector of pretreatment removal and obtains effective vector and stored or transmitted.
According to the utility model one embodiment, pretreatment is carried out to measurement vector and includes the following steps: to calculate currently
Measurement vector and it is previous measurement vector Euclidean distance, be compared using Euclidean distance with preset threshold value, to sentence
Whether the measurement vector for breaking current is effective, more specifically, current to measure vector effectively simultaneously if Euclidean distance is greater than threshold value
Retain；Otherwise, current vector is the repetition of preceding one-shot measurement vector, is abandoned.For the ease of illustrating, it will be assumed that mobile mesh
Logo image matrix isCalculation matrix is Ф ∈ RM×N, M < N, measurement vector matrix is Y.According to pressure
Contracting perception theory, original image i+1 column vectorPass through calculation matrix Ф compression sampling
Afterwards, the measurement vector obtainedIt can indicate are as follows:
If mobile target stops mobile or remain stationary state in sensor field of view, vector is measuredIt is original graph
As the repeated sampling of same row, this means that current measurement vector is equal to preceding one-shot measurement vector, it may be assumed that
Otherwise, there are larger differences for former and later two vectors.For the ease of judgement, we utilize Euclidean distance dyiTo measure this
Species diversity:
In formula, i=1,2 ..., N-1
In view of the influence of error, we adjudicated by threshold value T measurement vector whether repeated sampling.It is practical new according to this
Type one embodiment judges the whether effective method of current measurement vector are as follows: if Euclidean distance is less than or equal to preset
Threshold value shows that current measurement vector is the repetition of previous measurement vector, then current measurement vector is invalid；Conversely, working as
Preceding measurement vector is effective, it may be assumed that
According to the utility model one embodiment, effective vector is stored in memory or is wrapped by processor
Frame is sent to server or user's handheld terminal by communication module.
From the above description, it can be seen that the threshold size of selection will directly affect reconstructed image effect.In the present invention,
It is main shown using to static background pre-sampling mode, come threshold value, detailed process is as follows:
1. obtaining the measurement vector of static background:
2. calculating the Euclidean distance between the two neighboring vector of static background:Wherein: k=
1,2 ..., t-1；
3. selecting the maximum Euclidean distance of static background as the threshold value in image Compression: T=max { db1,
db2..., db(t-1)}。
Fig. 5 is the composition schematic diagram of server, as shown in figure 5, server include communication module, processor, storage unit,
Display unit and input/output interface.Input/output interface is for connecting keyboard, mouse etc. to input various data and refer to
It enables, is also connected with the interface etc. of printer.For display unit for showing data, message etc., the display unit includes display
And display driver, the display include light-emitting diode display, OLED display, LCD display, electrophoretic display device (EPD) etc..It is logical
Letter module is connected by communication network with user terminal and Image Acquisition terminal etc., and processor is used to obtain Image Acquisition terminal
Image information handled, it is preferable that the effective vector for obtaining Image Acquisition terminal is handled, and reconstructs monitored area
The image in domain is simultaneously shown on the display unit, and acquired effective vector is also sent to user terminal, at user's end
It is shown on the display screen at end.Storage unit includes read-only memory (ROM), random access memory (RAM).Processor
It can be loaded into enabled instruction from ROM, then read further application program from RAM, and complete one or more logic operations,
The application program stored in server in the utility model includes monitoring application program.Processor can be configured to control communication
The operation of module, foundation are linked with another equipment with communication module.The server provided in the utility model further includes
By the communication module of the common communications network of such as telephone wire and internet to be communicated with external equipment, and obtain various
Information.
Fig. 6 is the composition block diagram of mobile terminal.As shown in fig. 6, mobile terminal includes communication subsystem and application subsystem,
The communication subsystem includes that antenna, RF transceiver, analogue baseband processors, digital baseband processor, memory and SIM connect
Mouthful；Application subsystem includes primary processor, audio codec, power amplifier, loudspeaker, microphone, earphone, display,
Touch screen, keyboard, bluetooth, WLAN module, GPS module, video camera, SDRAM, NANDFLASH and SD card；Communication subsystem root
Data measured by mobile terminal are passed through into network transmission to server according to the instruction of primary processor；GPS module is for being moved
The location information and temporal information of dynamic terminal, primary processor are also used to control the working condition of video camera and communication subsystem etc..
Touch screen and keyboard are used for user input instruction.According to the utility model one embodiment, installation monitoring on the subscriber terminal is answered
With program, the monitoring application program is stored in memory, and primary processor calls monitoring apps server according to effectively
Vector reconstruction image is simultaneously shown over the display.
According to the utility model one embodiment, application program is monitored including at least the model selection according to user, is being supervised
On the large screen display/at control center or the display screen of user terminal can image at each monitoring area simultaneously, can also
With focusing on display a certain image by prison exploratory area domain can carry out full frame when showing the image at a certain monitored region
Display.When user selects multizone display pattern, shown respectively in the sub-viewing areas of each display screen each monitored
Image at region, due to the corresponding sub-viewing areas in a monitored region, Image Acquisition terminal is with low resolution
Acquire image, it is only necessary to which clearly image can be shown in sub-viewing areas by acquiring to low resolution image；When user is aobvious
When showing emphasis display pattern, corresponding monitoring area is displayed in full screen in the display screen of large screen display/or user terminal
Image, Image Acquisition terminal needs high-resolution to acquire the image at monitored region, so can be in large-size screen monitors large screen
The full screen display of the display screen of display/or user terminal clearly image.
In the utility model, monitoring application program can reconstruct mobile target image by traditional restructing algorithm, such as
Orthogonal matching pursuit algorithm.
The embodiments of the present invention are only used for task of explanation, and do not limit the scope of the utility model.For example, image
Compression application program and image control application program can be stored in such as the storage card of distribution, CD-ROM, DVD, MO
In the computer readable recording medium of (magneto-optic disk), and computer program can be mounted other computer, in server,
Handheld terminal etc..In addition, compression of images application program and image control application program can be stored in and be included in internet
On disk set etc. in.
Have been described in detail above with reference to the accompanying drawings the utility model, but what specification was only for interpreting the claims.
But the protection scope of the utility model is not limited to specification.Anyone skilled in the art is practical new at this
Type disclose technical scope in, the variation or replacement that can be readily occurred in, should all cover the protection scope of the utility model it
It is interior.Therefore, the protection scope of the utility model should be subject to the scope of protection of the claims.
Claims (1)
1. a kind of mobile target image compression sampling device comprising linear array image sensors are characterized in that, linear array
Imaging sensor is the adjustable imaging sensor of resolution ratio, and linear array image sensors include n image sampling unit, and n is
Integer more than or equal to 4, each image sampling unit include at least 2M electrooptical device, 4M electric-controlled switch and 1
A integrating circuit, wherein 2M electrooptical device is connected to integral through 2M electric-controlled switch in 4M electric-controlled switch respectively
The signal input part of circuit, the M are the integer more than or equal to 1, and 2M electrooptical device is also automatically controlled through 4M respectively
Other 2M electric-controlled switch in switch is connected to the signal input part of the integrating circuit of adjacent image acquisition units.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820160701.5U CN208461954U (en) | 2018-01-31 | 2018-01-31 | Moving target image compression sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820160701.5U CN208461954U (en) | 2018-01-31 | 2018-01-31 | Moving target image compression sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208461954U true CN208461954U (en) | 2019-02-01 |
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ID=65141281
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820160701.5U Expired - Fee Related CN208461954U (en) | 2018-01-31 | 2018-01-31 | Moving target image compression sampling device |
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| Country | Link |
|---|---|
| CN (1) | CN208461954U (en) |
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2018
- 2018-01-31 CN CN201820160701.5U patent/CN208461954U/en not_active Expired - Fee Related
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Granted publication date: 20190201 Termination date: 20200131 |