CN204156940U - A kind of film digitizer - Google Patents
A kind of film digitizer Download PDFInfo
- Publication number
- CN204156940U CN204156940U CN201420379274.1U CN201420379274U CN204156940U CN 204156940 U CN204156940 U CN 204156940U CN 201420379274 U CN201420379274 U CN 201420379274U CN 204156940 U CN204156940 U CN 204156940U
- Authority
- CN
- China
- Prior art keywords
- film
- camera
- array ccd
- image
- area array
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
A kind of film digitizer, comprise: area array CCD camera 1, film transport mechanism 2, film flattening mechanism 3, sheet folder locking mechanism 4, pulling-on piece detent mechanism 5, back lighting mechanism 6, camera support 7, frame 8, Management Controller 9, IMAQ and memory 10, described area array CCD camera 1 is made up of 4 lens changeables, fuselage 11, the machine back of the body and data wire.
Description
Technical field
The utility model relates to a kind of digitalizer, particularly relates to a kind of film digitizer.
Background technology
At present, although the development of mode transmission digital camera technology rapidly, but because, digital camera long by the technology innovation cycle safeguard the many factors such as complicated, film type cameras is still also widely used in the system of taking photo by plane, the photologging obtained, on photographic film, waits process means to obtain geography information by flushing.Due to the film storage condition after rinsing require harsh, occupy memory space greatly and more difficult long-time preservation, with digitized image comparatively speaking, interpretation efficiency is low, and it is convenient that digitized image then has storage, image identifying and the advantage such as post-processed is easy, quick.Therefore how the image of photographic film being carried out digitlization is need the urgent technical problem solved at present.
When developing film digitization system, must consider that how selectively the digitized video after typing and raw film are at the corresponding relation of the key index such as resolution, distortion, need consideration typing effective information, to improve operating efficiency simultaneously.
1. spatial resolution
Geometry resolution capability in spatial resolution and image, represents with differentiating the demand pairs amount opened in every millimeter, is denoted as 1p/mm.The spatial resolution of film represents the resolving power of this camera, i.e. the ability of minimum distinguishable target on film.When digitlization, this index is mainly relevant apart from the pixel dimension of, photoelectric device with the lens focus of digitization system, subject, under the prerequisite of high-quality imaging lens, lens focus is longer, shooting distance is nearer, pixel dimension is less, then spatial resolution is higher; Simultaneously in digitized process, the unequal factor of the movement of film, shake and exhibition all can affect digitized image resolution, therefore the camera lens of proper focal length and picture element need be selected when film digitization system, shorten photography object distance, avoid the unequal influencing factor of the movement of film, shake and exhibition, the resolution loss produced during to reduce film numeral as far as possible at shooting process as far as possible.
2. radiometric resolution
Radiometric resolution refers to the ability of image information reflection level gray scale details.The refinement of film gray scale is represented with contrast ability, and quantization digit when digitization system gradation of image refinement levels depends on digitlization, quantizing corresponding refinement levels as 12bit is 4096, can meet the requirement of digital information refinement.
3. distort
Distortion refers in digitized process, due to the image geometry distortion that the factors such as digitlization camera lens distortion itself is comparatively large, film stress deformation are introduced.Therefore designing and selecting to control index in its image quality and distortion two during digitlization camera lens, reduce by pulling-on piece design or avoid film stressed, to control the distortion introducing digital picture in digitized process as far as possible simultaneously.
4. operating efficiency
Operating efficiency refers to the time that digitlization image is used, and this index will depend primarily on Digitalization Mode, but operating efficiency is only a reference index in film digitization process.
In prior art, normal linear array CCD scanning or the linear array CCD camera digitization program of adopting carries out digitized processing to film:
1. linear array CCD scanning scheme
The operation principle of this technology is that film is motionless, with uniform light by film image backlight, control line array CCD sensor devices from film image with the imaging of high accuracy uniform speed scanning, directly by CCD, the image information of film is converted to the signal of telecommunication of simulation, carry out signal amplification again, after analog/digital conversion, gathered by signal collecting device and store digitized image, this is a dynamic processes.
The feature of this technology: long-line array CCD device (as: 6.5 μ × 6.5 μ usually selecting pixel dimension little, 12bit quantizes), and adopt sub-pixed mapping technology, 3.25 μ × 3.25 μ scanning resolutions are obtained by the method for image procossing, its static resolution calculated can reach 1501p/mm (dynamic resolution may drop by half), therefore after digitlization, the resolution of image is high, and information loss is few.But because device size is little, push away the speed of sweeping slow, therefore operating efficiency is very low, digitlization in about tens minutes film image.
2. linear array CCD camera digitization program
The operation principle of this technology is that CCD camera is motionless, control to ensure that film moves with uniform velocity relative to camera with certain speed by film trasport, carry out scanning imagery by the film of linear array CCD camera to motion, the image information of film is converted to digital image information by line array CCD again, and is stored.This digitlization reproduction scheme belongs to linear array CCD camera dynamic scan imaging process.
The little pixel line array CCD can grown most is in the market 12288 effective pixels, and pixel dimension is 5 μ, and the line length of this transducer is 61.4mm.According to the scanning imagery of 320mm fabric width, then each basic pixel of native system corresponds on film and is exactly: 320mm ÷ 12288=26.04 μ, and the corresponding Static-state Space resolution on film of the program is 19.19lp/mm.
The relatively previous scheme of this scan digitizing scheme operating efficiency is higher, but the information loss that raw film has in digitized process is larger.Mainly be subject to the impact of film movements factor, as film in motion, because of shake, out of focus produces image blurring, and pull film to cause terylene material distortion etc., after making digitlization, image is difficult to keep original film imaging quality, and the image information loss after digitlization is larger.
Conventional film image specification has 320mm × 320mm, 200mm × 200mm and 115mm × 115mm tri-kinds, the defect existed in linear array CCD scanning scheme and linear array CCD camera digitization program is adopted for normal in prior art, develop a set of general high-precision digital system to meet the digitized demand of a large amount of film images of different size, just seem particularly urgent and important.
Summary of the invention
The purpose of this utility model is to solve the problem existing for above-mentioned prior art, provides a kind of resolution high, the film digitizer that operating efficiency is high.
The digitization program that the utility model adopts is the operation principle of area array CCD scan digitizing is select area array CCD as imaging device, and carry out digitlization to film by width, in digitized process, area array CCD is relative with film all remains static.One width controls film by controller after having taken and moves thus realize several continuous numbers, and every piece image, after the digitlization of area array CCD machine phase, carries out the collection of digitized image by image capture device.Two kinds of mode of operations can be adopted: one is view picture Digitalization Mode, namely area array CCD single exposure can take width 320mm × 320mm raw film, although operating efficiency is high but by sacrificial section spatial resolution (shooting time being 320mm × 320mm as film is only only several seconds, image information loss about 15%).Another kind is partial enlargement Digitalization Mode, namely partial enlargement is carried out to responsive or valuable region, object-image relation in digitized process is remained on 1:1 basis, guarantees that the digital image space resolution after digitlization can reach the resolution with raw film image.
Because shooting moment camera and film image all remain static, what avoid that film judder causes is image blurring; In addition before each digitlization, flatten mechanism can by film flattening, and correct the imaging surface out-of-flatness that in film moving process, tension force causes, Static-state Space resolution can reach about 70lp/mm, therefore clear picture after digitlization, and information loss is few.
Above-mentioned linear array CCD scanning scheme, linear array CCD camera digitization program and area array CCD scan digitizing scheme are compared:
The utility model realizes in the following way, a kind of film digitizer, comprise: area array CCD camera, film transport mechanism, film flattening mechanism, sheet folder locking mechanism, pulling-on piece detent mechanism, back lighting mechanism, camera support, frame, Management Controller, IMAQ and memory, described area array CCD camera is made up of 4 lens changeables, fuselage, the machine back of the body and data wire.
Further, described fuselage is made up of fuselage fixed support, lens changing support, precision bearing system, control motor and position transducer; The transducer of the described machine back of the body is area array CCD, and pixel dimension is 7 μ, and size sensor is 36 × 48mm, and shutter speed is 1/800 ~ 32 second, and data transmission interface is IEEE1394b/CameraLink interface.
Further, described film transport mechanism completes with comparatively constant-tension and speed the actuator that film transport and film locate, have and accurately measure film length function, be made up of 2 film trasport motors, 2 deceleration transmission devices, 1 velometer, 1 jockey pulley, multiple guide card roller and multiple limit monitoring sensors, wherein there is multiple guide card roller surface by after polishing, for deriving the electrostatic produced in film trasport process.
Further, described film flattening mechanism is that film is flattened the actuator at imaging region by 5 μm of flatten precisions, be made up of base plate glass, pressuring plate glass and Cam follower device, control in main control computer instruction, after completing film trasport, start and flatten driven by motor cam follower, pressuring plate glass is moved down and film is flattened on base plate glass, to realize film flattening.
Further, described folder locking mechanism is that locking supplies, the actuator of take-up reel, presss from both sides support, gripping width adjusting device, locking device, travelling gear and gear locking device form by sheet under adaptation different size sheet caliper gage lattice prerequisite.
Further, described back lighting mechanism has the function of 400mm × 400mm size uniform lighting source, primarily of LED light source array, diffuse reflection glass and lamp box structure composition, completes transmitted light (backlight) illumination of film in digitized process.
Further, described camera support fixed main body, realizes the function that fuselage moves in the horizontal direction, and in order to realize the view picture shooting of film and the adjustment of camera position during the bust shot of local, forms primarily of support, guide rail, leading screw, motor and encoder.
Further, described frame is the agent structure support of digitization system, in order to installed surface array CCD camera, film transport mechanism, film flattening mechanism, sheet folder locking mechanism, pulling-on piece detent mechanism, back lighting mechanism, camera support, frame, Management Controller, IMAQ and memory.
Further, described Management Controller is electrically connected and controls pulling-on piece detent mechanism, flattens film mechanism, back lighting mechanism and realize the pulling-on piece of film, location, flattening and illumination, set area array CCD camera to film digitization pattern and shooting time, described Management Controller is primarily of slave computer and cabinet composition simultaneously.
Further, described IMAQ and memory comprise graphics workstation, image format conversion device, image simulator, hyperdisk array, PC and display screen; Described graphics workstation completes the picture data also display in real time of quarrelling received from area array CCD camera; Described image format conversion device completes the conversion of external interface and data format, realizes the unification of interface shape; Described image simulator is used to simulation CCD vision signal, can export CCD vision signal, for System self-test; The software platform of described PC is windows platform, comprises operation interface, file management, collection control, stores control and display and control.
Operating process of the present utility model is as follows: the mode of operation and the running parameter that are set typing by the Management Controller be made up of slave computer, host computer, operating grip and display, control the film trasport tension force of film, film velocity, film flattening and backlight illumination, realize being digitized the film trasport of film, location, flattening and illumination functions, quiescent imaging by area array CCD camera again, gathers the image information after digitlization by IMAQ and memory device.
The utility model has multiple-working mode:
1. automatic input pattern
After user interface setting film type, taking lens, system, by according to fixing imaging scale, automatically completes the continuous shooting of film information, and stores digital image information.
2. auxiliary typing pattern
When taking hot spot target, establishing camera lens by user interface setting bat, controlling film and camera motion by joystick, aiming at hot spot target according to image display, realize the shooting of hot localised points target area, and store digital image information.
Working mode set relation is in table 3
Table 3 Working mode set relation
| 1# | 2# | 3# | 4# | |
| 320 | Automatically | Auxiliary | Auxiliary | Auxiliary |
| 190 | —— | Automatically | Auxiliary | Auxiliary |
| 114 | —— | —— | Automatically | Auxiliary |
Service behaviour (enlargement ratio that expectation reaches) is in table 4
The enlargement ratio reached estimated by table 4
| 1# | 2# | 3# | 4# | |
| 320 | 7.6 | —— | —— | 1 |
| 190 | —— | 4.4 | —— | 1 |
| 114 | —— | —— | 2.7 | 1 |
The utility model has the advantages that:
1. changing typing pattern is quiescent imaging mode
When taking, camera and be in relative static conditions by bat film, what avoid that film judder causes is image blurring, and therefore clear picture after digitlization, information loss is few.
2. high accuracy film flattening ability
Film can flatten with 5 μm of precision by film flattening mechanism, flattens digitlization film, avoid because film face out-of-flatness brings image information loss to digitlization when digitlization.
3. selectable Digitalization Mode ability
Area array CCD camera digitization system is provided with two kinds of Digitization patterns: i.e. the pattern of view picture film digitization and the pattern of key area amplifier digital, both can meet operating efficiency, meets key area meticulous process requirement again simultaneously.
Accompanying drawing explanation
The composition schematic diagram of area array CCD camera scanning in accompanying drawing 1 the utility model;
The schematic diagram of area array CCD camera scanning device in accompanying drawing 2 the utility model;
The schematic diagram of area array CCD camera scanning device entirety in accompanying drawing 3 the utility model.
Embodiment
Pointing device of the present utility model forms as follows, a kind of film digitizer, comprise: area array CCD camera 1, film transport mechanism 2, film flattening mechanism 3, sheet folder locking mechanism 4, pulling-on piece detent mechanism 5, back lighting mechanism 6, camera support 7, frame 8, Management Controller 9, IMAQ and memory 10, described area array CCD camera 1 is made up of 4 lens changeables, fuselage 11, the machine back of the body and data wire.
Further, described fuselage 11 is made up of fuselage fixed support, lens changing support, precision bearing system, control motor and position transducer; The transducer of the described machine back of the body is area array CCD, and pixel dimension is 7 μ, and size sensor is 36 × 48mm, and shutter speed is 1/800 ~ 32 second, and data transmission interface is IEEE1394b/CameraLink interface.
Further, described film transport mechanism 2 completes with comparatively constant-tension and speed the actuator that film transport and film locate, have and accurately measure film length function, be made up of 2 film trasport motors, 2 deceleration transmission devices, 1 velometer, 1 jockey pulley, multiple guide card roller and multiple limit monitoring sensors, wherein there is multiple guide card roller surface by after polishing, for deriving the electrostatic produced in film trasport process.
Further, described film flattening mechanism 3 is that film is flattened the actuator at imaging region by 5 μm of flatten precisions, be made up of base plate glass, pressuring plate glass and Cam follower device, control in main control computer instruction, after completing film trasport, start and flatten driven by motor cam follower, pressuring plate glass is moved down and film is flattened on base plate glass, to realize film flattening.
Further, described folder locking mechanism 4 is that locking supplies, the actuator of take-up reel, presss from both sides support, gripping width adjusting device, locking device, travelling gear and gear locking device form by sheet under adaptation different size sheet caliper gage lattice prerequisite.
Further, described back lighting mechanism 6 has the function of 400mm × 400mm size uniform lighting source, primarily of LED light source array, diffuse reflection glass and lamp box structure composition, completes transmitted light (backlight) illumination of film in digitized process.
Further, described camera support 7 fixed main body, realizes the function that fuselage moves in the horizontal direction, and in order to realize the view picture shooting of film and the adjustment of camera position during the bust shot of local, forms primarily of support, guide rail, leading screw, motor and encoder.
Further, described frame 8 is agent structure supports of digitization system, in order to installed surface array CCD camera, film transport mechanism, film flattening mechanism, sheet folder locking mechanism, pulling-on piece detent mechanism, back lighting mechanism, camera support, frame, Management Controller, IMAQ and memory.
Further, described Management Controller 9 is electrically connected and controls pulling-on piece detent mechanism, flattens film mechanism, back lighting mechanism and realize the pulling-on piece of film, location, flattening and illumination, set area array CCD camera to film digitization pattern and shooting time, described Management Controller 9 is primarily of slave computer and cabinet composition simultaneously.
Further, described IMAQ and memory 10 comprise graphics workstation, image format conversion device, image simulator, hyperdisk array, PC and display screen; Described graphics workstation completes the picture data also display in real time of quarrelling received from area array CCD camera; Described image format conversion device completes the conversion of external interface and data format, realizes the unification of interface shape; Described image simulator is used to simulation CCD vision signal, can export CCD vision signal, for System self-test; The software platform of described PC is windows platform, comprises operation interface, file management, collection control, stores control and display and control.
Operating process of the present utility model is as follows: the mode of operation and the running parameter that are set typing by the Management Controller be made up of slave computer, host computer, operating grip and display, control the film trasport tension force of film, film velocity, film flattening and backlight illumination, realize being digitized the film trasport of film, location, flattening and illumination functions, quiescent imaging by area array CCD camera again, gathers the image information after digitlization by IMAQ and memory device.
The utility model has multiple-working mode:
1. automatic input pattern
After user interface setting film type, taking lens, system, by according to fixing imaging scale, automatically completes the continuous shooting of film information, and stores digital image information.
2. auxiliary typing pattern
When taking hot spot target, establishing camera lens by user interface setting bat, controlling film and camera motion by joystick, aiming at hot spot target according to image display, realize the shooting of hot localised points target area, and store digital image information.
Working mode set relation is in table 3
Table 3 Working mode set relation
| 1# | 2# | 3# | 4# | |
| 320 | Automatically | Auxiliary | Auxiliary | Auxiliary |
| 190 | —— | Automatically | Auxiliary | Auxiliary |
| 114 | —— | —— | Automatically | Auxiliary |
Service behaviour (enlargement ratio that expectation reaches) is in table 4
The enlargement ratio reached estimated by table 4
| 1# | 2# | 3# | 4# | |
| 320 | 7.6 | —— | —— | 1 |
| 190 | —— | 4.4 | —— | 1 |
| 114 | —— | —— | 2.7 | 1 |
Embodiment referring now to accompanying drawing 1-3 utility model is described in detail:
Film size: 320mm × 320mm
200mm×200mm
115mm×115mm
Memory space: 640G
Operating efficiency: 1 width 320mm × 320mm
The film digitization typing time is within one minute.
In addition, after digitlization, image needs the information of the original image of preservation as much as possible, also namely requires that digital picture geometric resolution and radiometric resolution all will meet image instructions for use.
When developing film digitization system, must consider that how selectively the digitized video after typing and raw film are at the corresponding relation of the key index such as resolution, distortion, need consideration typing effective information, to improve operating efficiency simultaneously.
Geometry resolution capability in spatial resolution and image, represents with differentiating the demand pairs amount opened in every millimeter, is denoted as 1p/mm.The spatial resolution of film represents the resolving power of this camera, i.e. the ability of minimum distinguishable target on film.When digitlization, this index is mainly relevant apart from the pixel dimension of, photoelectric device with the lens focus of digitization system, subject, under the prerequisite of high-quality imaging lens, lens focus is longer, shooting distance is nearer, pixel dimension is less, then spatial resolution is higher; Simultaneously in digitized process, the unequal factor of the movement of film, shake and exhibition all can affect digitized image resolution, therefore the camera lens of proper focal length and picture element need be selected when film digitization system, shorten photography object distance, avoid the unequal influencing factor of the movement of film, shake and exhibition, the resolution loss produced during to reduce film numeral as far as possible at shooting process as far as possible.
Radiometric resolution refers to the ability of image information reflection level gray scale details.The refinement of film gray scale is represented with contrast ability, and quantization digit when digitization system gradation of image refinement levels depends on digitlization, quantizing corresponding refinement levels as 12bit is 4096, can meet the requirement of digital information refinement.
Distortion refers in digitized process, due to the image geometry distortion that the factors such as digitlization camera lens distortion itself is comparatively large, film stress deformation are introduced.Therefore designing and selecting to control index in its image quality and distortion two during digitlization camera lens, reduce by pulling-on piece design or avoid film stressed, to control the distortion introducing digital picture in digitized process as far as possible simultaneously.
Operating efficiency refers to the time that digitlization image is used, and this index will depend primarily on Digitalization Mode, but operating efficiency is only a reference index in film digitization process.
The operation principle of this technology is that film is motionless, with uniform light by film image backlight, control line array CCD sensor devices from film image with the imaging of high accuracy uniform speed scanning, directly by CCD, the image information of film is converted to the signal of telecommunication of simulation, carry out signal amplification again, after analog/digital conversion, gathered by signal collecting device and store digitized image, this is a dynamic processes.
The feature of this technology: long-line array CCD device (as: 6.5 μ × 6.5 μ usually selecting pixel dimension little, 12bit quantizes), and adopt sub-pixed mapping technology, 3.25 μ × 3.25 μ scanning resolutions are obtained by the method for image procossing, its static resolution calculated can reach 1501p/mm (dynamic resolution may drop by half), therefore after digitlization, the resolution of image is high, and information loss is few.But because device size is little, push away the speed of sweeping slow, therefore operating efficiency is very low, digitlization in about tens minutes film image.
The operation principle of this technology is that CCD camera is motionless, control to ensure that film moves with uniform velocity relative to camera with certain speed by film trasport, carry out scanning imagery by the film of linear array CCD camera to motion, the image information of film is converted to digital image information by line array CCD again, and is stored.This digitlization reproduction scheme belongs to linear array CCD camera dynamic scan imaging process.
The little pixel line array CCD can grown most is in the market 12288 effective pixels, and pixel dimension is 5 μ, and the line length of this transducer is 61.4mm.According to the scanning imagery of 320mm fabric width, then each basic pixel of native system corresponds on film and is exactly: 320mm ÷ 12288=26.04 μ, and the corresponding Static-state Space resolution on film of the program is 19.19lp/mm.
The relatively previous scheme of this scan digitizing scheme operating efficiency is higher, but the information loss that raw film has in digitized process is larger.Mainly be subject to the impact of film movements factor, as film in motion, because of shake, out of focus produces image blurring, and pull film to cause terylene material distortion etc., after making digitlization, image is difficult to keep original film imaging quality, and the image information loss after digitlization is larger.
The operation principle of this technology selects area array CCD as imaging device, carries out digitlization to film by width, and in digitized process, area array CCD is relative with film all remains static.One width controls film by controller after having taken and moves thus realize several continuous numbers, and every piece image, after the digitlization of area array CCD machine phase, carries out the collection of digitized image by image capture device.Two kinds of mode of operations can be adopted: one is view picture Digitalization Mode, namely area array CCD single exposure can take width 320mm × 320mm raw film, although operating efficiency is high but by sacrificial section spatial resolution (shooting time being 320mm × 320mm as film is only only several seconds, image information loss about 15%).Another kind is partial enlargement Digitalization Mode, namely partial enlargement is carried out to responsive or valuable region, object-image relation in digitized process is remained on 1:1 basis, guarantees that the digital image space resolution after digitlization can reach the resolution with raw film image.
Because shooting moment camera and film image all remain static, what avoid that film judder causes is image blurring; In addition before each digitlization, flatten mechanism can by film flattening, and correct the imaging surface out-of-flatness that in film moving process, tension force causes, Static-state Space resolution can reach about 70lp/mm, therefore clear picture after digitlization, and information loss is few.
Above-mentioned digitization program be compared as follows shown in table:
The characteristic comparing of table 1 digitizing technique
In sum, area array CCD machine phase digitlization technical scheme combines linear array scanning scheme and line-scan digital camera digitization program preferably, achieves resolution high, the requirement that operating efficiency is high, therefore will introduce this technical scheme in detail herein.
Face battle array digitization system is pressed from both sides locking mechanism, pulling-on piece detent mechanism, back lighting mechanism, camera support, Management Controller, IMAQ and memory formed, in table 2, Fig. 2 and Fig. 3 by area array CCD camera, film flattening mechanism, sheet.
Table 2 digitization system mainly forms
Mode of operation and the running parameter of typing is set by the Management Controller be made up of slave computer, host computer, operating grip and display, control the film trasport tension force of film, film velocity, film flattening and backlight illumination, realize being digitized the film trasport of film, location, flattening and illumination functions, quiescent imaging by area array CCD camera again, gathers the image information after digitlization by IMAQ and memory device.
1) automatic input pattern
After user interface setting film type, taking lens, system, by according to fixing imaging scale, automatically completes the continuous shooting of film information, and stores digital image information.
2) auxiliary typing pattern
When taking hot spot target, establishing camera lens by user interface setting bat, controlling film and camera motion by joystick, aiming at hot spot target according to image display, realize the shooting of hot localised points target area, and store digital image information.
Working mode set relation is in table 3
Table 3 Working mode set relation
| 1# | 2# | 3# | 4# | |
| 320 | Automatically | Auxiliary | Auxiliary | Auxiliary |
| 190 | —— | Automatically | Auxiliary | Auxiliary |
| 114 | —— | —— | Automatically | Auxiliary |
Service behaviour (enlargement ratio that expectation reaches) is in table 4
The enlargement ratio reached estimated by table 4
| 1# | 2# | 3# | 4# | |
| 320 | 7.6 | —— | —— | 1 |
| 190 | —— | 4.4 | —— | 1 |
| 114 | —— | —— | 2.7 | 1 |
area array CCD camera is the nucleus equipment in film digitization system, in order to meet the short requirement of user's lead time, the XXXXX type camera selecting good imaging quality, geometric accuracy high, area array CCD camera is made up of 4 automatically replaceable camera lenses, fuselage, back and data wires.
The Specifeca tion speeification of camera lens is as table 5.
Table 5 camera lens Specifeca tion speeification
Camera body structure is made up of fuselage fixed support, lens changing support, precision bearing system, control motor and position transducer.Function connects camera back and camera lens, and can complete lens changing.
Camera back is buying high-performance Professional Photography camera back, and its specific performance parameter is as table 6:
Table 6 camera back performance index
| Parameter type | Performance index |
| Transducer | Area array CCD |
| Pixel dimension | 7μ |
| Size sensor | 36×48mm |
| Shutter speed | 1/800 ~ ~ 32 second |
| Data transmission interface | IEEE1394b/CameraLink interface |
Film transport mechanism completes with comparatively constant-tension and speed the actuator that film transport and film locate, and has and accurately measure film length function.Be made up of 2 film trasport motors, 2 deceleration transmission devices, 1 velometer, 1 jockey pulley, multiple guide card roller and multiple limit monitoring sensors.Wherein there is multiple guide card roller surface by after polishing, for deriving the electrostatic produced in film trasport process.
Film flattening mechanism is that film is flattened the actuator at imaging region by 5 μm of flatten precisions.Be made up of base plate glass, pressuring plate glass and Cam follower device.Control in main control computer instruction, after completing film trasport, start and flatten driven by motor cam follower, pressuring plate glass is moved down and film is flattened on base plate glass, to realize film flattening.
Sheet folder locking mechanism is that locking supplies, the actuator of take-up reel under adaptation different size sheet caliper gage lattice prerequisite.Press from both sides support, gripping width adjusting device, locking device, travelling gear and gear locking device by sheet to form.
Back-light mechanism has the function of 400mm × 400mm size uniform lighting source.Form primarily of LED light source array, diffuse reflection glass and lamp box structure.Complete transmitted light (backlight) illumination of film in digitized process.
Support plays fixed camera, realizes the function that camera moves in the horizontal direction, and the view picture in order to realize film takes the adjustment with camera position during the bust shot of local.Form primarily of support, guide rail, leading screw, motor and encoder.
Frame is the agent structure support of digitization system, in order to install corresponding film transport mechanism, flatten mechanism, sheet folder locking mechanism, back-light mechanism, support and camera.
Management Controller have control pulling-on piece detent mechanism, flatten film mechanism, pulling-on piece that back lighting mechanism realizes film, location, flattening and illumination capability, set area array CCD camera to film digitization pattern and shooting time etc. simultaneously.Primarily of slave computer and cabinet composition.
IMAQ and memory device mainly comprise graphics workstation, image format conversion device, image simulator, hyperdisk array, PC, display screen etc.
Graphics workstation completes the picture data also display in real time of quarrelling received from area array CCD camera.
Image format conversion device completes the conversion of external interface and data format, realizes the unification of interface shape.
Image simulator is used to simulation CCD vision signal, can export CCD vision signal, for System self-test.
The software platform of PC is windows platform, comprises operation interface, file management, collection controls, storage controls, display and control; Post-processing module comprises acquisition module, memory module, display module, real-time processing module.
The utility model has the advantages that:
1. changing typing pattern is quiescent imaging mode
When taking, camera and be in relative static conditions by bat film, what avoid that film judder causes is image blurring, and therefore clear picture after digitlization, information loss is few.
2. high accuracy film flattening ability
Film can flatten with 5 μm of precision by film flattening mechanism, flattens digitlization film, avoid because film face out-of-flatness brings image information loss to digitlization when digitlization.
3. selectable Digitalization Mode ability
Area array CCD camera digitization system is provided with two kinds of Digitization patterns: i.e. the pattern of view picture film digitization and the pattern of key area amplifier digital, both can meet operating efficiency, meets key area meticulous process requirement again simultaneously.
Although above by illustrating; describe the embodiment of the utility model the best; protection range of the present utility model is not limited in above-mentioned explanation; persons skilled in the art are understandable that; under the prerequisite not deviating from essence that the utility model instructs and marrow, any modifications and variations all fall into protection range of the present utility model.
Claims (10)
1. a film digitizer, comprise: area array CCD camera (1), film transport mechanism (2), film flattening mechanism (3), sheet folder locking mechanism (4), pulling-on piece detent mechanism (5), back lighting mechanism (6), camera support (7), frame (8), Management Controller (9), IMAQ and memory (10), described area array CCD camera (1) is made up of 4 lens changeables, fuselage (11), the machine back of the body and data wire.
2. film digitizer according to claim 1, is characterized in that: described fuselage (11) is made up of fuselage fixed support, lens changing support, precision bearing system, control motor and position transducer; The transducer of the described machine back of the body is area array CCD, and pixel dimension is 7 μ, and size sensor is 36 × 48mm, and shutter speed is 1/800 ~ 32 second, and data transmission interface is IEEE1394b/CameraLink interface.
3. film digitizer according to claim 1, it is characterized in that: described film transport mechanism (2) completes with comparatively constant-tension and speed the actuator that film transport and film locate, have and accurately measure film length function, be made up of 2 film trasport motors, 2 deceleration transmission devices, 1 velometer, 1 jockey pulley, multiple guide card roller and multiple limit monitoring sensors, wherein there is multiple guide card roller surface by after polishing, for deriving the electrostatic produced in film trasport process.
4. film digitizer according to claim 1, it is characterized in that: described film flattening mechanism (3) is that film is flattened the actuator at imaging region by 5 μm of flatten precisions, be made up of base plate glass, pressuring plate glass and Cam follower device, control in main control computer instruction, after completing film trasport, start and flatten driven by motor cam follower, pressuring plate glass is moved down and film is flattened on base plate glass, to realize film flattening.
5. film digitizer according to claim 1, it is characterized in that: described folder locking mechanism (4) is under adaptation different size sheet caliper gage lattice prerequisite, locking supplies, the actuator of take-up reel, presss from both sides support, gripping width adjusting device, locking device, travelling gear and gear locking device form by sheet.
6. film digitizer according to claim 1, it is characterized in that: described back lighting mechanism (6) has the function of 400mm × 400mm size uniform lighting source, primarily of LED light source array, diffuse reflection glass and lamp box structure composition, complete the transillumination of film in digitized process.
7. film digitizer according to claim 1, it is characterized in that: described camera support (7) fixed main body, realize the function that fuselage moves in the horizontal direction, in order to realize the view picture shooting of film and the adjustment of camera position during the bust shot of local, form primarily of support, guide rail, leading screw, motor and encoder.
8. film digitizer according to claim 1, it is characterized in that: described frame (8) is the agent structure support of digitization system, in order to installed surface array CCD camera, film transport mechanism, film flattening mechanism, sheet folder locking mechanism, pulling-on piece detent mechanism, back lighting mechanism, camera support, frame, Management Controller, IMAQ and memory.
9. film digitizer according to claim 1, it is characterized in that: described Management Controller (9) is electrically connected and controls pulling-on piece detent mechanism, flattens film mechanism, back lighting mechanism and realize the pulling-on piece of film, location, flattening and illumination, set area array CCD camera to film digitization pattern and shooting time, described Management Controller (9) is primarily of slave computer and cabinet composition simultaneously.
10. film digitizer according to claim 1, is characterized in that: described IMAQ and memory (10) comprise graphics workstation, image format conversion device, image simulator, hyperdisk array, PC and display screen; Described graphics workstation completes the picture data also display in real time of quarrelling received from area array CCD camera; Described image format conversion device completes the conversion of external interface and data format, realizes the unification of interface shape; Described image simulator is used to simulation CCD vision signal, can export CCD vision signal, for System self-test; The software platform of described PC is windows platform, comprises operation interface, file management, collection control, stores control and display and control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420379274.1U CN204156940U (en) | 2014-07-10 | 2014-07-10 | A kind of film digitizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420379274.1U CN204156940U (en) | 2014-07-10 | 2014-07-10 | A kind of film digitizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204156940U true CN204156940U (en) | 2015-02-11 |
Family
ID=52515026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420379274.1U Expired - Fee Related CN204156940U (en) | 2014-07-10 | 2014-07-10 | A kind of film digitizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204156940U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107613277A (en) * | 2017-09-29 | 2018-01-19 | 维沃移动通信有限公司 | The digitalized processing method and terminal of a kind of egative film |
| CN109696448A (en) * | 2019-01-18 | 2019-04-30 | 江苏大学 | A kind of industrial X-ray film test digitalized imaging device |
| CN111935399A (en) * | 2020-07-31 | 2020-11-13 | 昆明市测绘研究院 | Digitalization method of historical navigation films |
| CN113400831A (en) * | 2021-04-19 | 2021-09-17 | 焦作大学 | Financial bill sorting management device and method thereof |
| CN117037876A (en) * | 2023-08-08 | 2023-11-10 | 翼存(上海)智能科技有限公司 | Digital film writing device and writing method |
-
2014
- 2014-07-10 CN CN201420379274.1U patent/CN204156940U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107613277A (en) * | 2017-09-29 | 2018-01-19 | 维沃移动通信有限公司 | The digitalized processing method and terminal of a kind of egative film |
| CN109696448A (en) * | 2019-01-18 | 2019-04-30 | 江苏大学 | A kind of industrial X-ray film test digitalized imaging device |
| CN109696448B (en) * | 2019-01-18 | 2021-10-08 | 江苏大学 | Industrial X-ray film digital imaging device |
| CN111935399A (en) * | 2020-07-31 | 2020-11-13 | 昆明市测绘研究院 | Digitalization method of historical navigation films |
| CN113400831A (en) * | 2021-04-19 | 2021-09-17 | 焦作大学 | Financial bill sorting management device and method thereof |
| CN117037876A (en) * | 2023-08-08 | 2023-11-10 | 翼存(上海)智能科技有限公司 | Digital film writing device and writing method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204156940U (en) | A kind of film digitizer | |
| US7876948B2 (en) | System for creating microscopic digital montage images | |
| US9088729B2 (en) | Imaging apparatus and method of controlling same | |
| US20120147224A1 (en) | Imaging apparatus | |
| CN102625022B (en) | Rapid microscopic section scanning method with image space compensation motion and apparatus thereof | |
| AU2003294946A1 (en) | Camera and method for optically recording a screen | |
| WO2013099141A1 (en) | Image processing apparatus and system, method for processing image, and program | |
| US20120147232A1 (en) | Imaging apparatus | |
| EP2086223A3 (en) | Method and apparatus for capturing an image | |
| CN101609051A (en) | Handheld fabric density measuring instrument based on image spectrum technology | |
| CN103685845B (en) | Root system image scanning device | |
| CN103454283A (en) | Line detection system and method | |
| CN101883198A (en) | Scanner capable of detecting in real time and physically adjusting frame and scanning method thereof | |
| CN116297496B (en) | Multispectral intelligent defect detection method | |
| CN102564924A (en) | Automatic scanning method of single-frame image of blood cell | |
| CN204795419U (en) | Clear reflection of shooing of assembly line goods appearance of making a video recording | |
| CN104796631A (en) | Surface flattening imaging device and surface flattening imaging method | |
| CN206710069U (en) | A kind of focal length of lens test device of no mechanical movement | |
| KR101179423B1 (en) | Apparatus and method for obtaining image for uneven pattern | |
| CN101184171A (en) | Digitization system of video film | |
| JPWO2017195794A1 (en) | Cell observation device and program | |
| CN102928437A (en) | Surface quality recording system for metal coiled straps | |
| CN102540685B (en) | Shading mechanism for digital stereoscopic image enlarge-printing and equipment and method comprising same | |
| CN203385649U (en) | Automatic imaging system for large-scale biological tissue serial section | |
| CN109959455B (en) | Static infrared target scanning imaging device and method based on no lens |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150211 Termination date: 20150710 |
|
| EXPY | Termination of patent right or utility model |