CN2454824Y - High-resolution-ratio document-file quickly numeralization apparatus - Google Patents

Abstract

The utility model discloses a high-resolution-ratio data-document quick digitization apparatus (all kinds of data-document information which comprises books, magazines, drawing paper, painting, etc., which exist in an analog mode). Through using an optical imaging component which is especially designed, the high-resolution-ratio data-document quick digitization apparatus can conduct imaging; the data and document which needs to be conducted with digitization is divided into a plurality of areas; each area uses a high-resolution CCD image device of an area array as a sensor which can acquire image information, and through a definite processing circuit, the utility model can cause the collected images to be sent to a computer and newly synthesized to be an image. Compared with the traditional digitization apparatus, such as a scanner, the high-resolution-ratio data-document quick digitization apparatus has the advantages of high resolution, fast digitization speed, real-time preview function, good image quality, etc.

Description

A kind of high-resolution information document quick digitizer

The utility model relates to a kind of high-resolution information document quick digitizer, is used for realizing that books, magazine, archives, bill, microfilm, drawing, picture etc. are present in the digitizing function of information documents such as literal on certain medium, symbol, figure, image with analog form.

Human social development we can say to today and entered digitizing, informationalized epoch, and obtaining fast and transmitting of information becomes a characteristic feature of era development.The quick propagation that digital technology, rapid development of network technology have greatly promoted information with obtain, and by the precondition of obtaining fast Yu transmitting that computing machine, network carry out information be information with numeral form represent.Human create in very long evolutionary process and accumulated a large amount of knowledge and information, and these knowledge and information exist with simulated mode in large quantities, this gives obtaining, transmit and store and having brought great inconvenience of information.Therefore, need the device that to finish the data information fast digitalization.

Finishing the method for simulation data digital document at present, no matter be domestic or external, mainly is to adopt scanner, secondly is to adopt digital camera.The ultimate principle of scanner is to adopt the line array CCD device of one dimension or the opto-electronic conversion that other electrooptical device is realized a direction, adds the mechanical scanning campaign of one dimension, has finished the conversion of two-dimensional signal jointly.But it is slow that the disadvantage of scanner is a speed, the especially scanning of coloured image, and generally minute to calculate, large scale drawing scanner speed is slower.The sweep velocity of some dedicated scan instrument is very fast, but costs an arm and a leg, and is difficult to promote.Therefore, the digitizing work of finishing data information in enormous quantities as instrument with scanner obviously is inappropriate, and this point is admitted by butcher,baker,and the candlestick maker scholar.Digital camera is mainly by object lens, face battle array electro-optical imaging sensors and treatment circuit are formed, it is also few to realize that with digital camera the digitizing work of information document is used in practice, its main cause is that digital camera is mainly used to take the landscape building, material objects such as personage, as be used for the shooting data document, picture quality is subjected to the influence of ambient light easily, its optical magnification also not necessarily is fit to the requirement that information document is taken, in addition, its resolution is lower, generally be difficult to satisfy the requirement that information document is taken, and existing digital camera shooting piece image and the speed that is transferred in the computing machine are slower, also are not suitable for the digitizing work of a large amount of information documents.Patent documentation " uses the film image digitizer of fibre coupled laser diode ", and (application number is 96194243.6) provides a kind of film digitized device, this patent is only applicable to the digitizing work of film, and is not suitable for the digitizing work of other information document.

The purpose of this device utility model just provides a kind of high-resolution information document quick digitizer, solves that the speed that existing information document digitalizer exists is slow, resolution is low, picture element is subject to problems such as surrounding environment influence.

For realizing the purpose of this utility model, adopt light source, optical imagery parts and one or more battle array electro-optical imaging sensors, form a photoelectronic imaging device.The optical imagery parts are between information document being shot and face battle array electro-optical imaging sensors, and information document being shot is positioned on the object plane of optical imagery object lens, and face battle array electro-optical imaging sensors is positioned on the image planes of optical imagery parts, and its light-sensitive surface is perpendicular to optical axis.Information document being shot is divided into several rectangular areas, the optical imagery parts can carry out imaging to information document being shot, and a face battle array electro-optical imaging sensors receives only the image of a rectangular area of information document being shot, and imaging is all carried out by the optical imagery parts in each zone that all information documents being shot are divided, and carries out opto-electronic conversion with face battle array electro-optical imaging sensors.The output signal of treatment circuit receiving plane battle array electro-optical imaging sensors is also handled, and treatment circuit links to each other with computing machine, in computing machine each regional image is synthesized piece image.

Utilize above-mentioned principle that following several information document digitalizer can be arranged:

The optical imagery parts of first kind of high-resolution information document quick digitizer comprise optical imagery object lens and true field switching part.The true field switching part is between information document being shot and optical imagery object lens, and these parts can realize that the center of true field switches between each regional symcenter of the breadth of being divided being shot, to obtain each regional image.The picture in each zone that face battle array electro-optical imaging sensors reception optical imagery parts are become, and carry out opto-electronic conversion.Treatment circuit receives the output signal of each face battle array electro-optical imaging sensors, and treatment circuit links to each other with computing machine, utilizes software image that each imageing sensor is received in computing machine to synthesize piece image.

Above-mentioned true field switching part can be by the mutually perpendicular wedge in a pair of principal section to forming with an adjustment component, right two the adjacent workplaces of wedge of each wedge are parallel to each other, and can under the effect of adjustment component, relatively rotate angle arbitrarily, two wedges are arranged in the imaging optical path order, and an adjustment component links to each other with wedge.

Above-mentioned true field switching part can also be by several total reflection right-angle prisms, several two diagonal line are coated with cube prism and an adjustment component of semi-transparent semi-reflecting film and form, the total reflection right-angle prism be positioned at zone that information document being shot is divided directly over, imaging beam at first passes through the total reflection right-angle prism and turns to, several total reflection right-angle prisms converge to a cube prism, the outgoing beam of several cube prism also converges with a cube prism, and the different conditions of adjustment component can be realized blocking and pass through the true field light beam.

The optical imagery parts of second kind of high-resolution information document quick digitizer comprise a plurality of optical imagery object lens.The breadth of information document being shot is divided into several rectangular areas, each zone all with one independently the optical imagery object lens breadth being shot in this zone is carried out imaging, the true field scope of each object lens is corresponding to a zone of being divided, and a plurality of battle array electro-optical imaging sensors lay respectively on each the image planes and realize opto-electronic conversion.Treatment circuit receives the output signal of each face battle array electro-optical imaging sensors, and treatment circuit links to each other with computing machine, utilizes software image that each imageing sensor is received in computing machine to synthesize piece image.

The optical imagery parts of the third high-resolution information document quick digitizer comprise optical imagery object lens and several beam splitters.Beam splitter carries out once or the several times beam split imaging beam between the image planes of optical imagery object lens and optical imagery parts, and each beam split light path all can become the picture of a complete information document being shot.Several face battle array electro-optical imaging sensors place respectively on the image planes of each beam split light path, and its light-sensitive surface is perpendicular to optical axis, light-sensitive surface satisfies perpendicular to the position of optical axis direction: each face battle array electro-optical imaging sensors receive only become the part of the picture of information document, and the image that all face battle array electro-optical imaging sensors are received becomes the image of a complete information document altogether.Treatment circuit receives the output signal of each face battle array electro-optical imaging sensors, and treatment circuit links to each other with computing machine, utilizes software image that each imageing sensor is received in computing machine to synthesize piece image.

Because each used array image sensor of the utility model receives only the picture of information document regional area being shot, can improve the enlargement factor of optical imaging system, thereby can improve the image resolution ratio of whole digitalizer, be able to differentiate the purpose of information document details.Simultaneously because the data volume of image is bigger, treatment circuit of the present utility model has adopted the high-speed computer bus interface, as pci bus, sub bus, SCSI bus etc., can view data be passed in the computing machine fast, finally reach the purpose of obtaining fast of information document high-definition picture.In addition, because the utility model adopts high-speed interface, can realize live preview function to information document being shot.At last, because the utility model must the mechanical scanning by one dimension could not obtain two-dimentional image as scanner, but adopt the method acquisition image of electron scanning fully, therefore, the image stabilization of acquisition, picture element are good.

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

Fig. 1 is the structural representation of the utility model the first string.

Fig. 2 is the structural representation of second scheme of the utility model.

Fig. 3 is the structural representation of the 3rd scheme of the utility model.

Fig. 4 is that regional field rays is assembled the modular construction vertical view in the 3rd scheme of the utility model.

Fig. 5 is that regional field rays is assembled the modular construction front elevation in the 3rd scheme of the utility model.

Fig. 6 is a shadow shield synoptic diagram in the 3rd scheme of the utility model.

Fig. 7 is the structure front elevation of the 4th scheme of the utility model.

Fig. 8 is the structure A-A cut-open view of the 4th scheme of the utility model.

Fig. 9 is the structural representation of the utility model the first string.

Figure 10 is the structural representation of second scheme of the utility model.

Figure 11 is the structural representation of the 3rd scheme of the utility model.

Figure 12 is a surface of light source plate structure synoptic diagram in the 3rd scheme of the utility model.

Figure 13 is that other scheme of the utility model adopts surface of light source plate structure synoptic diagram.

Figure 14 is the treatment circuit of the utility model when adopting array image sensor one by one.

Figure 15 is the treatment circuit of the utility model when adopting a plurality of array image sensor.

The scheme of Fig. 1 shown in being comprises that information document 26 being shot, light source panel 8, diffuse reflection glass 10, a pair of wedge are to 4, adjustment component 2, total reflection right-angle prism 11, optical imagery object lens 9, Array CCD sensor 3 and a treatment circuit 6.On the light source panel 8 except that the transmission region that imaging is used, the light source 1 of evenly arranging, light transmission diffuse reflection glass that the light source panel sends 10 forms even illumination light and shines on the information document 26 being shot.The right principal section of two wedges among the figure is orthogonal, their effect is relatively rotating by right two the contiguous workplaces parallel to each other of each wedge, realization is carried out deviation to the light of incident, according to the light path principle of reversibility, corresponding to the visual field of object plane variation has just taken place also.Specifically, wedge is to the deviation of the light of (perpendicular to paper) in the I generation sagittal surface, and wedge produces the deflection of light of (in the paper) in the meridian ellipse to II.We can be used as a rectangular area to the breadth of information document 26 being shot, at first whole breadth is divided into several rectangular areas artificially, adjustment component 2 each wedge of control just can make the chief ray of imaging line switch between each regional center being shot to the relative angle in 4, thereby realize the variation of visual field.Each zone of information document 26 being shot like this can be in turn through two wedges to 4, optical imagery object lens 9 carry out imaging.Place an array CCD image sensor 3 on image planes, its light-sensitive surface is perpendicular to optical axis, and whole true field is just corresponding to its light-sensitive surface.Imageing sensor 3 carries out opto-electronic conversion to the picture on the image planes, output signal is sent into treatment circuit 6 and is handled, the data image signal of treatment circuit 6 outputs is sent to and carries out the Flame Image Process processing in the computing machine, and again each regional image of breadth being shot is synthesized a complete image.

The principle of scheme shown in Figure 2 is similar with top scheme principle, has just increased light path turnover element 12, with the increment distance, makes the structure of device compact more.

Information document digitalizer shown in Figure 3 comprises that information document 26 being shot, diffuse reflection glass 10, light source panel 8, adjustment component 2, regional field rays converge parts 25, optical imagery object lens 9, face battle array electro-optical imaging sensors 3.Adjustment component 2 is made up of stepper motor 13, shadow shield 14, and stepper motor is fixedlyed connected with shadow shield 14.The ultimate principle of this scheme is that the information document that is taken is divided into some rectangular areas artificially, imaging is carried out after all can converging parts 25 and optical imagery object lens 9 by regional field rays in each zone, under the effect of adjustment component 2, have only the light beam in a zone to carry out imaging, the picture in each zone " timesharing " is carried out opto-electronic conversion with same Array CCD sensor, and be sent in the computing machine and handle, synthesize piece image again.The zone field rays converges structure such as Fig. 4, shown in Figure 5 of parts 25.Each regional light at first converges to block prism 15 places that two diagonal line are coated with semi-transparent semi-reflecting film through four right-angle prisms 11 in Fig. 4, the emergent ray of two cube prism carries out light with the another one cube prism again and converges, and finally makes each regional light beam all can converge in the light path.In Fig. 3, the even illumination light that light source panel 8 forms is radiated on the information document 26 being shot, the zone field rays converges parts 25 has four imaging optical paths to carry out imaging to the artificial object plane of dividing, shadow shield 14 rotates under the driving of stepper motor 13, a zone that makes information document 26 being shot respectively is by shadow shield 14, carry out imaging, utilize ccd sensor to carry out opto-electronic conversion again, finish the obtaining of image of a regional object plane, and then the control step motor rotates shadow shield, allow other zone carry out imaging respectively, thereby realize obtaining of whole information document image being shot.The synoptic diagram of the light source panel of this structure as shown in figure 12.Four holes among the figure are light hole.The synoptic diagram of shadow shield as shown in Figure 6.The non-diagonal angle workplace that two diagonal line are coated with the block prism 15 of semi-transparent semi-reflecting film all will plate anti-reflection film, to prevent the influence of spurious rays to imaging optical path.

Fig. 7, information document digitalizer shown in Figure 8 comprise information document 26 being shot, light source panel 8, diffuse reflection glass 10, four optical imagery object lens 9, four right-angle prisms 11, four face battle array electro-optical imaging sensors (area array CCD) 3.Its ultimate principle is that the breadth of information document being shot is divided into four identical rectangular areas artificially, each zone is carried out imaging and is carried out opto-electronic conversion with the high resolving power matrix CCD with cover optical imagery object lens independent of each other respectively, deliver in the computing machine by certain treatment circuit again, synthesize a complete image, each its treatment circuit as shown in figure 14.Quadruplet independently the position of optical imagery except that the requirement of satisfying imaging, also should satisfy: the true field of each optical imagery object lens is corresponding to a rectangular area of the information document being shot that is divided, all optical imagery object lens true field form the whole breadth of information document being shot altogether.Added four total reflection right-angle prisms that are used for the light path turnover among the figure, made structure compact more.

Information document digitalizer shown in Figure 9 comprises information document 26 being shot, diffuse reflection glass 10, light source panel 8, optical imagery object lens 9, three semi-transparent semi-reflecting Amici prisms 7, four Array CCD sensors 3, treatment circuit 6.The light transmission diffuse reflection glass 10 that light source panel 8 sends shines on the information document 26 that is taken, and optical imagery object lens 9 are at first to information document 26 imagings being shot.In picture side, at first by first Amici prism 7 separated into two parts light, a part is a transmitted light to imaging light, a part is a reflected light, this two parts light is further carried out beam split by two other Amici prism 7 respectively again, and like this, imaging light is divided into four parts altogether.On the imaging surface of each road light beam, place a high-resolution Array CCD sensor, the picture that throws on it is converted to electric signal, by treatment circuit 6 each Array CCD signal of sensor is handled, send into computing machine by high-speed interface and carry out Flame Image Process, in computing machine, synthesize piece image at last again.This device is the picture that the picture of whole information document is dispersed into several complete informations, each picture receives conversion with array image sensor respectively, each array image sensor receives only the picture corresponding to a rectangular area of information document being shot, thereby realizes the acquisition of high-definition picture.

First Amici prism among Fig. 9 done some special processings when plated film, make that two parts light after the beam split is not polarized light, is beneficial to the homogeneity of follow-up beam split.After twice beam split, the light intensity of every part all equates, can make image separately further synthetic more like this.For guarantee to be taken data obtain throwing light on more uniformly, this device has adopted the illuminator of light source panel 13 as device.

Figure 10 is similar to information document digitalizer structure and principle shown in Figure 9 with device shown in Figure 11, has just added light path turnover device one total reflection right-angle prism 11.So the physical dimension of device is compact more.

Treatment circuit when Figure 14 is Array CCD sensor of the utility model employing comprises timing sequence generating circuit 17, Array CCD sensor 3, the two samplings of clamp and amplifying circuit 18, analog to digital conversion circuit 19, impact damper 20, high-speed PCI bus interface circuit 21, control circuit 22.The sequential that timing sequence generating circuit 17 produces is given Array CCD sensor 3 and is driven, make it work, the two samplings of signal process clamp of Array CCD sensor 3 outputs and amplifying circuit and analog to digital conversion circuit 19 become digital signal, be temporarily stored in 20 li in impact damper, under the control of control circuit, the view data that impact damper is 20 li is transferred in the computing machine by high-speed PCI bus interface 21 and handles.Control circuit also is responsible for the initialization of timing sequence generating circuit 17 and the storage of view data simultaneously.

Figure 15 is the treatment circuit of the utility model when adopting a plurality of Array CCD sensor, and its principle of work is similar to circuit shown in Figure 14, and just the picture signal source signal becomes four the tunnel by original a road, adds a commutation circuit 24.Four road image signal sources only allow one tunnel work under the control of commutation circuit, and enter into two samplings of next stage circuit one clamp and amplifying circuit 18, handle.

Claims (12)

1. high-resolution information document quick digitizer, comprise light source (1), one or more battle array electro-optical imaging sensors (3), it is characterized in that, between information document being shot (26) and face battle array electro-optical imaging sensors (3), optical imagery parts (27) are arranged, information document being shot (26) is positioned on the object plane of optical imagery parts (27), face battle array electro-optical imaging sensors (3) is positioned on the image planes of optical imagery parts (27), and its light-sensitive surface is perpendicular to optical axis; Information document being shot (26) is divided into several rectangular areas, optical imagery parts (27) can carry out imaging to information document being shot (26), and a face battle array electro-optical imaging sensors (3) receives only the image of a rectangular area of information document being shot (26), and imaging is all carried out by optical imagery parts (27) in each zone that all information documents being shot (26) are divided; Carry out opto-electronic conversion with face battle array electro-optical imaging sensors (3); The output signal of treatment circuit (6) receiving plane battle array electro-optical imaging sensors (3) is also handled, and treatment circuit (6) links to each other with computing machine, in computing machine each regional image is synthesized piece image.

2. according to the described high-resolution information document quick digitizer of claim 1, it is characterized in that, described optical imagery parts (27) comprise optical imagery object lens (9) and true field switching part (16), true field switching part (16) is positioned between information document being shot (26) and the optical imagery object lens (9), these parts can realize that the center of true field switches between each regional symcenter of the breadth of being divided being shot, to obtain each regional image.

3. according to the described high-resolution information document quick digitizer of claim 2, it is characterized in that, described true field switching part (16) is made up of (4) and adjustment component (2) the mutually perpendicular wedge in a pair of principal section, each wedge is parallel to each other to two adjacent workplaces of wedge of (4), and can under the effect of adjustment component (2), relatively rotate angle arbitrarily, two wedges are arranged in the imaging optical path order, and an adjustment component (2) links to each other with wedge.

4. according to the described high-resolution information document quick digitizer of claim 2, it is characterized in that, described true field switching part (16) is by several total reflection right-angle prisms (11), several two diagonal line are coated with the cube prism (15) and the adjustment component (2) of semi-transparent semi-reflecting film and form, total reflection right-angle prism (11) be positioned at zone that information document being shot (26) is divided directly over, imaging beam at first passes through total reflection right-angle prism (11) and turns to, several total reflection right-angle prisms (11) converge to a cube prism (15), the outgoing beam of several cube prism also converges with a cube prism, and the different conditions of adjustment component (2) can be realized blocking and pass through the true field light beam.

5. according to the described high-resolution information document quick digitizer of claim 4, it is characterized in that described true field switching part (16) is made up of cube prism (15) and adjustment component (2) that four total reflection right-angle prisms (11) and three two diagonal line are coated with semi-transparent semi-reflecting film.

6. according to any described high-resolution information document quick digitizer of claim 3 to 5, it is characterized in that, described adjustment component (2) is made up of a shadow shield (14) and a stepper motor (13), stepper motor (13) is fixedlyed connected with shadow shield (14), shadow shield (14) has a transmission region, and this area size satisfies the needs of imaging optical path visual field.

7. one kind is adopted the described high-resolution information document quick digitizer of claim 1, it is characterized in that described optical imagery parts (27) comprise a plurality of optical imagery object lens (9), the breadth of information document being shot (26) is divided into several rectangular areas, each zone all use one independently optical imagery object lens (9) breadth being shot in this zone is carried out imaging, the true field scope of each object lens is corresponding to a zone of being divided, and a plurality of battle array electro-optical imaging sensors (3) lay respectively on each the image planes and realize opto-electronic conversion.

8. one kind is adopted the described high-resolution information document quick digitizer of claim 1, it is characterized in that described optical imagery parts (27) comprise optical imagery object lens (9) and several beam splitters (5), beam splitter (5) is positioned between the image planes of optical imagery object lens (9) and optical imagery parts (27), imaging beam is carried out once or the several times beam split, and each beam split light path all can become the picture of a complete information document being shot (26); Several face battle array electro-optical imaging sensors (3) place respectively on the image planes of each beam split light path, and its light-sensitive surface is perpendicular to optical axis, light-sensitive surface satisfies perpendicular to the position of optical axis direction: each face battle array electro-optical imaging sensors (3) receive only become the part of the picture of information document, and all face battle array electro-optical imaging sensors (3) images that received become the image of a complete information document altogether, treatment circuit (6) receives the output signal of each face battle array electro-optical imaging sensors (3), treatment circuit (6) links to each other with computing machine, utilizes software in computing machine the received image of each imageing sensor (3) to be synthesized piece image.

9. according to the described high-resolution information document quick digitizer of claim 8, it is characterized in that, described beam splitter (5) has three beam splitters for diagonal line is coated with the Amici prism of semi-transparent semi-reflecting film, adopts four face battle array electro-optical imaging sensors (3) to carry out opto-electronic conversion.

10. according to any one described high-resolution information document quick digitizer of claim 1 to 9, it is characterized in that, light source (1) is a light source panel (8), light source panel (8) is gone up except that the transmission region that imaging is used, all the other zones equally spaced lighting bulb of all evenly arranging, the light of bulb sees through diffuse reflection glass (10) and forms uniform illumination light.

11. according to any one described high-resolution information document quick digitizer of claim 1 to 10, it is characterized in that, between information document being shot (26) and the light source (1) diffuse reflection glass (10) is arranged, diffuse reflection glass (10) is gone up except that the required transmission region of imaging, and all the other zones are diffuse surface.

12., it is characterized in that according to any one described high-resolution information document quick digitizer of claim 1 to 11, in the optical imagery parts, added some light path turnover elements (12), carry out the light path turnover.

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