CN107222665A - Multi signal support it is multi-functional can long-distance transmissions HD video endoscopic system - Google Patents
Multi signal support it is multi-functional can long-distance transmissions HD video endoscopic system Download PDFInfo
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- CN107222665A CN107222665A CN201710444385.4A CN201710444385A CN107222665A CN 107222665 A CN107222665 A CN 107222665A CN 201710444385 A CN201710444385 A CN 201710444385A CN 107222665 A CN107222665 A CN 107222665A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/04—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
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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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- 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
- H04N23/555—Constructional details for picking-up images in sites, inaccessible due to their dimensions or hazardous conditions, e.g. endoscopes or borescopes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/2628—Alteration of picture size, shape, position or orientation, e.g. zooming, rotation, rolling, perspective, translation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/268—Signal distribution or switching
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/015—High-definition television systems
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- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
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- Heart & Thoracic Surgery (AREA)
- Optics & Photonics (AREA)
- Pathology (AREA)
- Biophysics (AREA)
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- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
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- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
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- Closed-Circuit Television Systems (AREA)
Abstract
The invention discloses a kind of multi signal support it is multi-functional can long-distance transmissions HD video endoscopic system, in order to overcome the limitation in the transmission range that the decay by data signal on transmission cable brought, preceding image processing module uses new-generation digital video compressing module.Compression of digital video module can just recover the getable high clear video image of compression algorithm institute of standard using the amount of digital information of half.Moreover, two image processing modules can be according to transmission distance and the decay of signal, can adaptively adjust digital compression ratio, to reach optimal video image effect.If the wire rod 4 in figure is using category-six twisted pair with, transmission range is up to 200 meters；If remote, virtually lossless the HD video that can realize more than 500 meters using 75 3 coaxial cables is transmitted.
Description
Technical field
The present invention relates to technical field of video transmission, particularly relate to a kind of multi signal support it is multi-functional can be remote
Transmit the endoscopic system of HD video.
Background technology
Endoscope point medical endoscope, industrial endoscope.
The universal transmission range of medical endoscope is short, and industrial endoscope requires transmission length（50 ~ 300 meters）.
720P high definitions endoscope camera head in the market is all to use ccd sensor, and camera volume is larger, very greatly
The size of end of probe is added in degree so that endoscope is difficult to apply in narrow space.And popular COMS endoscopes
Camera pixel is all below 440,000, and pixel is too low, it is difficult to the details on observed object surface, and endoscope user is to failure for influence
Diagnosis.In order to tackle the industrial environment of complexity, camera is in addition to meeting high-definition image collection, in addition it is also necessary to solves high definition and regards
The problem of frequency signal is transmitted.It is existing available for long-distance transmissions（100 meters ~ 300 meters）Endoscopic system, what is generally transmitted is mould
Intend signal, NTSC, PAL-system level（300000 pixels）, resolution ratio is relatively low, and image effect is poor.For lifting endoscope（It is particularly industrial
Endoscope）Remote distance video transfer image effect.
Existing endoscope product, generally only a kind of input signal and interface, it is impossible to compatible multi-signal input.
Existing endoscope product, function is excessively single, is often only limitted to certain observation surface or be candid photograph figure at most of monitoring
Picture, video.More applications can not be done.
The content of the invention
For deficiency of the prior art, the technical problem to be solved in the present invention is the provision of a kind of multi signal and supports many
Function can long-distance transmissions HD video endoscopic system.
In order to solve the above technical problems, the present invention is realized by following scheme：Multi signal support is multi-functional can be remote
The endoscopic system of HD video is transmitted, the endoscopic system includes：
Camera module, the camera module includes digital high-definition video acquisition and transmitter module, digital high-definition video acquisition
And transmitter module is used to launch vision signal；
Endoscope mainboard, the endoscope mainboard includes digital high-definition video reception module, and digital high-definition video reception module is used
In receiving vision signal, the endoscope mainboard is connected by wire rod with camera module；
Display screen, for showing camera picture；
The camera module also includes high-definition camera module, preceding image processing module；
The endoscope mainboard also includes CPU and the rear image procossing mould being electrically connected with CPU
Block,
The preceding image processing module, rear image processing module are both provided with virtually lossless compression unit, virtually lossless compression
Unit is low delay frame data compression unit, and it supports configurable compression ratio, and according to the adaptive adjustment of quality of transmission channel
Compression ratio, obtains optimal picture quality；
The preceding image processing module, rear image processing module are integrated with piece upper module, parallel-to-serial converter, cable drive, should
Piece upper module is used to eliminate influence of the transmission error code to image；
The camera module shoots video, and preceding image processing module is believed video according to transmission by virtually lossless compression unit
The quality adjustment compression ratio in road, carries out Lossless Compression, the video after compression is through digital high-definition video acquisition and transmitter module or biography
Defeated wire rod is transferred to digital high-definition video reception module, and the compression video received is reduced by rear image processing module, and according to
Upper module eliminates influence of the transmission error code to image, and the compression video after reduction with CPU signal by being connected just
Take formula mobile device terminal or screen display module is played in real time, its video quality played is lossless video.
Further, the virtually lossless compression unit uses Norelsys algorithms.
Further, the endoscope mainboard is additionally provided with：
Shield display module connector, for connecting screen display module；
TVOUT/HDMI output ports；
USB high-definition cameras connectivity port, for connecting USB high-definition cameras；
SD card socket, for installing SD card, the SD card is used to store the video after reduction；
Keyboard jack, for connecting keyboard；
Mobile terminal socket, for connecting portable mobile apparatus terminal.
Further, the preceding image processing module, rear image processing module are provided with reverse audio and control unit, and
It is integrated with reverse audio and control signal receiving circuit；
The rear image processing module receives same cable while positive transmission video, audio and control signal is received
The reverse audio and control signal of upper transmission.
Further, the wire rod is looped around on disk, increases Hall sensor, the Hall sensor on the disk
The rotating cycle of disk is perceived, the purpose of measurement camera displacement is reached.
Further, the CPU is additionally provided with the size of measurement monitoring feature image or defect image,
And camera fish eye images correcting unit.
Relative to prior art, the beneficial effects of the invention are as follows：The present invention provides a kind of high definition technology of endoscopic system
Solution.System uses CMOS high-definition image sensors, 2,000,000 pixels, 720P/1080P resolution.From special image
Processing module, carries out Lossless transport, color reducibility is good, the advantages of image clearly, and transmission range can be to 500 meters.
Solution is inputted the invention provides multi-signal.During long-distance transmissions, using different image processing modules,
AHD simulation high definitions can be transmitted, or transmit digital high definition.And for the medical endoscope of short-distance transmission, then can use
The USB high-definition cameras of plug and play type, it is very easy to use.
The present invention provides a kind of endoscope solution of multi-functional many applications.Observation can be amplified to monitor area；
Video photography can be captured；Photo can be amplified, reduced, rotated, the operation such as mirror image；Color editor can be carried out to photo, it is color
Discoloration black and white, black and white recovers colour etc.；Name can be remodified to photo；Video record can be carried out；Can be to photo, video file
Sent by the direct-connected mobile phone of WIFI, 3G/4G or network.In addition, the present invention also has many algorithms function：Survey in real time
The displacement of industrial endoscope camera is measured, the size of monitoring feature image or defect image can be measured, shooting can be supported
Head fish eye images correction.
Brief description of the drawings
Fig. 1 is endoscopic system theory diagram of the present invention；
Fig. 2 is the annexation figure of each module of endoscopic system of the present invention.
Embodiment
The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, apparent is clearly defined so as to be made to protection scope of the present invention.
Refer to accompanying drawing 1-2, multi signal of the invention support it is multi-functional can long-distance transmissions HD video endoscope system
System, the endoscopic system includes：
Camera module A, the camera module A include digital high-definition video acquisition and transmitter module B1, digital high-definition video
Collection and transmitter module B1 are used to launch vision signal, and the camera module A is high-definition digital camera（720P/1080P/
And 4K）；
Endoscope mainboard C, the endoscope mainboard C include digital high-definition video reception module B2, digital high-definition video reception mould
Block B2 is used to receive vision signal, and the endoscope mainboard C is connected by wire rod D with camera module A；Wire rod D is twisted-pair feeder
Or coaxial line, together with power line, ground wire, length ranges up to 500M；
Display screen E, for showing camera picture；
The camera module A also includes high-definition camera module 2, preceding image processing module 3；
The endoscope mainboard C also includes CPU 1 and the rear image procossing being electrically connected with CPU 1
Module 5,
The preceding image processing module 3, rear image processing module 5 are both provided with virtually lossless compression unit, the virtually lossless pressure
Contracting unit is low delay frame data compression unit, and it supports configurable compression ratio, and is adaptively adjusted according to the quality of transmission channel
Whole compression ratio, obtains optimal picture quality；
The preceding image processing module 3, rear image processing module 5 are integrated with piece upper module, parallel-to-serial converter, cable drive,
The piece upper module is used to eliminate influence of the transmission error code to image；
The camera module A shoots video, and preceding image processing module 3 is by virtually lossless compression unit by video according to transmission
The quality adjustment compression ratio of channel, carries out Lossless Compression, the video after compression is through digital high-definition video acquisition and transmitter module B1
Or transmission wire rod 4 is transferred to digital high-definition video reception module B2, the compression video received is gone back by rear image processing module 5
Original, and influence of the transmission error code to image is eliminated according to upper module, the compression video after reduction with CPU 1 by believing
The portable mobile apparatus terminal 8 or screen display module 6 of number connection are played in real time, and its video quality played is regarded to be lossless
Frequently.
The virtually lossless compression unit uses Norelsys algorithms.
The endoscope mainboard C is additionally provided with：
Shield display module connector, for connecting screen display module 6；
TVOUT/HDMI output ports 7；
USB high-definition cameras connectivity port, for connecting USB high-definition cameras 11；
SD card socket, for installing SD card 10, the SD card 10 is used to store the video after reduction；
Keyboard jack, for connecting keyboard 9；
Mobile terminal socket, for connecting portable mobile apparatus terminal 8.
The preceding image processing module 3, rear image processing module 5 are provided with reverse audio and control unit, and are integrated with
Reverse audio and control signal receiving circuit；
The rear image processing module 5 receives same cable while positive transmission video, audio and control signal is received
The reverse audio and control signal of upper transmission.
The wire rod D is looped around on disk, increases Hall sensor on the disk, and the Hall sensor perceives disk
Rotating cycle, reach measurement camera displacement purpose.
The CPU 1 is additionally provided with the size of measurement monitoring feature image or defect image, and shooting
Head fish eye images correcting unit.
It is to realize first that the endoscopic system of the present invention, which can transmit digital high-definition from 150M ~ 500M mode, traditional
Endoscope can realize that transmission video super 100M's is all analogue transmission, and the function such as can be taken pictures to the video of collection, recorded a video.
Photo files have amplification, diminution, rotation, mirror image, editor（Filename modification, photo can be black and white and anti-mistake from color masking
Come）Etc. function.Take a picture, video file can be sent by network, with mobile phone is direct-connected shares away.When camera gos deep into pipeline
Inside, can monitoring distance in real time（Refer to the distance that camera leaves starting point）, real-time range can come out in screen display；And energy
Measure the general width size of some feature inside pipeline.
The main functional features of CPU 1 of the present invention are as follows：
1. dominant frequency 1.2GHz；
32-bit 2G Byte total capacities are carried 2. storing, compatible DDR2/DDR3/DDR3L/LPDDR2/LPDDR3/DRAM,
Support NAND FLASH, EMMC 5.0, SD3.0 etc..
3. dynamic frequency, frequency highest 576MHz.
4. in terms of video, 1080p@45fps are supported in decoding, coding supports H264 1080p@45fps, ultimate resolution
4096X4096；1080p@60fps are supported in the aobvious output of video list, and LCD 720P@60fps+HDMI are supported in double aobvious outputs
720P@60fps。
5. in terms of display, binary channels LVDS maximum 1080p@60fps;24 RGB LCD, maximum 1080p@
60fps;
6. support HDMI 1.4.
7. camera, two-way serial ports CSI, maximum 1080p@30fps, support BT656, BT1120,24 are supported
YUV444/RGB;Two-way is supported to input simultaneously.
8. peripheral hardware, 3 road USB of support, two-way TF cards, PS2X2, KEYPAD X 1 (8 rows 8 are arranged), two-way infrared receiver,
KEYADC X 2。
9. audio, 2 sets of I2S/PCM interfaces, and 32bit/192KHz sampling precisions.
The present invention multi signal support it is multi-functional can long-distance transmissions HD video endoscopic system operation principle such as
Under：
High definition cmos image sensor signal, after preceding image processing module 3, farthest transmission range can in transmission wire rod 4
Up to 500 meters.The rear output BT656 signals of image processing module 5 or BT1120 signals are eventually passed to central control unit 1.
In order to overcome the limitation in the transmission range that the decay by data signal on transmission cable brought, preceding image
Processing module 3 uses new-generation digital video compressing module.Compression of digital video module can using the amount of digital information of half
To recover the getable high clear video image of compression algorithm institute of standard.Moreover, two image processing module energy according to
The distance of transmission and the decay of signal, can adaptively adjust digital compression ratio, to reach optimal video image effect.Figure
If in wire rod 4 using category-six twisted pair with, transmission range is up to 200 meters；If more than 500 meters can be realized using 75-3 coaxial cables
Remote, virtually lossless HD video transmission.And two image processing modules using the present invention are easy to future products
Upgrading（Support 2K, 4K high-definition camera）.
As medical endoscope, camera module part needs of the invention are flexible, have certain length, and can collect
The video image of high definition.Therefore 1 ~ 2 meter of USB high-definition cameras can be directly accessed.
Doctor is in surgical procedure, or, it is necessary to repeat viewing, office to some picture or video inside complicated pipeline
Draw in portion
Face emphasis viewing, it is therefore desirable to the device such as offer one kind is dedicated for taking pictures, recording, partial enlargement.The texts such as playback replay
Part edition function.It is convenient to pass through network sharing photo, video file etc. to the expert consultation of failure or focus.
1.1 pairs of monitor area amplifications, diminution observations；
1.2 video images are captured；
1.3 video images are recorded a video；
1.4 photos, video file are stored in SD card, USB flash disk and at will selected；
1.5 driving screen displays, video clip, UI interfaces support that touch screen operation is compatible with button operation；
The operations such as 1.6 photo files are amplified, reduced, rotating, mirror image；
1.7 photo files color editables, colour becomes black and white, and black and white recovers colour etc.；
1.8 photos, video file can remodify Chinese and English name；
1.9 photos, video file are sent by the direct-connected mobile phone of WIFI, 3G/4G or network.
The preferred embodiment of the present invention is the foregoing is only, is not intended to limit the scope of the invention, every profit
The equivalent structure or equivalent flow conversion made with description of the invention and accompanying drawing content, or directly or indirectly it is used in other phases
The technical field of pass, is included within the scope of the present invention.
Claims (6)
1. multi signal support it is multi-functional can long-distance transmissions HD video endoscopic system, the endoscopic system includes：
Camera module（A）, the camera module（A）Including digital high-definition video acquisition and transmitter module（B1）, numeral height
Clear video acquisition and transmitter module（B1）For launching vision signal；
Endoscope mainboard（C）, the endoscope mainboard（C）Including digital high-definition video reception module（B2）, digital high-definition video
Receiving module（B2）For receiving vision signal, the endoscope mainboard（C）Pass through wire rod（D）With camera module（A）Connection；
Display screen（E）, for showing camera picture；
It is characterized in that：The camera module（A）Also include high-definition camera module（2）, preceding image processing module（3）；
The endoscope mainboard（C）Also include CPU（1）And and CPU（1）The rear figure being electrically connected with
As processing module（5）、
The preceding image processing module（3）, rear image processing module（5）Be both provided with virtually lossless compression unit, the vision without
Damage compression unit is low delay frame data compression unit, and it supports configurable compression ratio, and according to the fine or not adaptive of transmission channel
Compression ratio should be adjusted, optimal picture quality is obtained；
The preceding image processing module（3）, rear image processing module（5）It is integrated with piece upper module, parallel-to-serial converter, cable actuated
Device, the piece upper module is used to eliminate influence of the transmission error code to image；
The camera module（A）Shoot video, preceding image processing module（3）By virtually lossless compression unit by video according to
The quality adjustment compression ratio of transmission channel, carries out Lossless Compression, and the video after compression is through digital high-definition video acquisition and transmitting mould
Block（B1）Or transmission wire rod（4）It is transferred to digital high-definition video reception module（B2）, the compression video received is by rear image
Manage module（5）Reduction, and influence of the transmission error code to image is eliminated according to upper module, the compression video after reduction by with center
Processing unit（1）The portable mobile apparatus terminal of signal connection（8）Or screen display module（6）Played in real time, it is played
Video quality be lossless video.
2. multi signal according to claim 1 support it is multi-functional can long-distance transmissions HD video endoscopic system, its
It is characterised by：The virtually lossless compression unit uses Norelsys algorithms.
3. multi signal according to claim 1 support it is multi-functional can long-distance transmissions HD video endoscopic system, its
It is characterised by：The endoscope mainboard（C）It is additionally provided with：
Shield display module connector, for connecting screen display module（6）；
TVOUT/HDMI output ports（7）；
USB high-definition cameras connectivity port, for connecting USB high-definition cameras（11）；
SD card socket, for installing SD card（10）, the SD card（10）For storing the video after reduction；
Keyboard jack, for connecting keyboard（9）；
Mobile terminal socket, for connecting portable mobile apparatus terminal（8）.
4. multi signal according to claim 1 support it is multi-functional can long-distance transmissions HD video endoscopic system, its
It is characterised by：The preceding image processing module（3）, rear image processing module（5）It is provided with reverse audio and control unit, and collection
Into reverse audio and control signal receiving circuit；
The rear image processing module（5）While positive transmission video, audio and control signal is received, same single line is received
The reverse audio and control signal transmitted on cable.
5. multi signal according to claim 1 support it is multi-functional can long-distance transmissions HD video endoscopic system, its
It is characterised by：The wire rod（D）It is looped around on disk, increases Hall sensor on the disk, the Hall sensor is perceived
The rotating cycle of disk, reaches the purpose of measurement camera displacement.
6. multi signal according to claim 1 support it is multi-functional can long-distance transmissions HD video endoscopic system, its
It is characterised by：The CPU（1）The size of measurement monitoring feature image or defect image is additionally provided with, and is taken the photograph
As head fish eye images correcting unit.
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