EP1076839A2

EP1076839A2 - Device for producing three-dimensional images of objects by means of optical scanners and method for acquiring a three-dimensional image of an object

Info

Publication number: EP1076839A2
Application number: EP99920852A
Authority: EP
Inventors: Richard Schubert
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-05-05
Filing date: 1999-05-05
Publication date: 2001-02-21
Also published as: WO1999057597A3; WO1999057597A9; WO1999057597A2; DE19839339A1; AU3827599A

Abstract

The aim of the invention is to provide a device for producing three-dimensional images of objects (13) using optical scanners (1) in conjunction with data processing devices, as well as a method for controlling and operating optical scanners. To this end a computer comprises a software-controlled optical flat-bed scanner (1) with a non-parallel or parallel optical imaging system (44), which is fitted with additional apparatus or modified, exchangeable apparatus parts for positioning the objects (13) whose image is to be acquired or for optimizing the illumination of the objects for the three-dimensional representation. The computer comprises a special display unit for three-dimensional representation or a standard display unit. The object is acquired sequentially and/or simultaneously in at least two acquisition modes and the scanner device is controlled to this end. The data of the sequential and/or simultaneous image acquisition are stored and/or computer-processed after completion of the scanning process or partly during the scanning proces3, so as to yield a spatial model.

Description

Device for producing three-dimensional images of objects using optical scanners and a method for three-dimensional object detection

The invention relates to a device for producing three-dimensional images of objects by means of optical scanners in connection with a data processing device and a method for controlling and operating optical scanners for producing three-dimensional images.

With the invention of photography, a technical process was developed with which optical images of any object can be created. In ordinary photography, however, the depth information is lost and a two-dimensional image is obtained from the three-dimensional world. It was recognized over 100 years ago that two separate shots of an object can give a spatial impression for both eyes. This so-called stereoscopic imaging method is already used in wide areas of technology, for example in soil science, geodesy, space travel, for satellite images and in art. With the advent of computer technology and digital image processing, the creation, manipulation and display of three-dimensional images of objects is becoming increasingly important. There are a number of ways and methods to create three-dimensional images of real-world objects that can be processed by computers:

1) Use of two cameras and transfer of the two images to the computer

2) Use of a camera in connection with a rotatable slide

3) Scanning objects using optical triangulation techniques. a) This can be done either with strong laser beams b) or with special lighting patterns such as stripes etc.

4) mechanical scanning via pantographs etc.

All processes are complex and have not yet been widely adopted:

When using the options mentioned under 1) and 2), a complex adjustment of the camera or cameras is required. The lighting conditions must also be correct. In general, you need a special recording room like a photo studio. The use of the option mentioned under 3a) is very complex and therefore very expensive, in some cases dangerous because of the high illuminance levels and several laser beams are required for color imaging. The possibility mentioned under 3b) results in a low depth resolution and complex digital post-processing is required. The method mentioned under 4) is very time-consuming and is not suitable for soft objects due to the direct contact with the object and is therefore only suitable for the hobby area or for semi-professional use.

Optical scanners with scanning arrays have been on the market for a number of years; the best-known designs are the so-called hand scanners and the flatbed scanners. With the hand-held scanner, a scanning element, consisting of a scanning lamp and an optical scanning array, usually a CCD array, is pushed over the surface to be imaged by hand. In the flatbed scanner, the scanning element, also consisting of a scanning lamp and an optical scanning array, is moved mechanically under a glass plate. The main area of application for flatbed scanners is the scanning of paper originals. Due to their depth of focus of a few centimeters, they are also ideal for capturing smaller and especially flat objects, such as Printed circuit boards etc. There are a number of advantages over conventional photography:

- Scale accuracy in the direction of movement of the scanning carriage

(no parallax effects in this direction)

- very high reproducibility ("push the PCB to the stop")

- immediate availability of results

- Direct electronic processing possible

- almost ideal lighting conditions

- very high resolution

- lower expense

- low costs Due to the special cylindrical imaging geometry, simply moving objects on the glass plate perpendicular to the direction of movement of the scanning carriage makes it possible to generate images from slightly different viewing angles. In this way, stereoscopic recordings of the highest quality of objects can be created. This property is not described anywhere in print and is a side effect of the design-related non-parallel imaging optics. This property can only be used as a hobby and with disproportionate effort for the production of stereoscopic images. This effect cannot be exploited satisfactorily in the professional field without tools or corresponding changes to the scanner.

The invention has for its object to develop a device for producing three-dimensional images of objects by means of optical scanners in connection with data processing devices and a method for controlling and operating optical scanners for producing three-dimensional images.

This object was achieved in that a device for producing three-dimensional images of objects by means of optical scanners in connection with a data processing device was developed, in which, according to the invention, a software-controlled, commercially available or modified optical scanner equipped with a non-parallel or parallel imaging optics on a computer is and a special display for three-dimensional representation or a conventional display are provided. Commercially available flatbed scanners equipped with a scanning device operating according to a non-parallel or parallel optics are equipped according to the invention with additional devices or with modified interchangeable device parts for positioning the recording objects and for optimizing the object illumination for the three-dimensional imaging for the three-dimensional imaging of objects.

These additional devices consist of boxes designed as slides, from boxes designed as slides with double bottoms, from stop rulers according to the type of slide rail system, from modified scanner lids with integrated slides box, from modified scanner lids with integrated slides box for overhead operation, from a sliding slide box for overhead operation, and from marking for slide box.

The slide boxes have a different length, width, depth and inner lining and are specifically designed for a scanner type and / or a type of object.

The slides are marked automatically by the software.

According to a further embodiment, the boxes can have a height-adjustable base, the height-adjustable base being arranged such that it can be locked in one or more specific, predefined heights. Furthermore, an attachable device is provided which is attached to the scanner in a positionally stable manner, with which the objects or the object carriers can be reproduced on and above the glass plate of the scanner and can be positioned in a defined orientation, this device being provided with scaling in length dimensions and / or with device-dependent scaling is.

The device for positioning is designed in the manner of a tear rail, a pantograph, the pen control of a plotter and the like.

The boxes can be integrated in an exchangeable lid of the scanner, the lid having a device for displacing the box and / or the entire lid with the fixed box being arranged so as to be displaceable.

According to a further embodiment variant, the scanner is arranged above the specimen slide, which can be placed on a device frame or pivoted into the working position by means of a hinge.

All displacements take place via drive elements and / or the positioning which is automatically and / or manually performed by drive elements can be detected mechanically, optical, electromechanical, inductive, acoustic or capacitive sensors being provided for the detection of the displacement.

The data transmission takes place via all interfaces that can be used in computer technology. With a modified flatbed scanner equipped with non-parallel or parallel imaging optics, which is used for the three-dimensional detection of objects, the object is picked up automatically or partly automatically, software-controlled, via a multidimensional displacement device for the scanning array and / or via several fixed or displaceable scanning arrays and / or via one Sliding device wherein the scanning carriage is arranged in a controllably guided manner along any curve shape and / or is equipped with several light sources and / or with asymmetrically constructed scanning arrays and / or with rotatable object carriers and / or with a scanner that is equipped with a height-adjustable glass plate and / or with sliding Glass plate is equipped and / or in which the glass plate is omitted and / or that of the glass plate of the opposite cover / housing wall is omitted or is likewise replaced by a glass plate and / or in which the functionality of the additional devices is integrated.

The scanner and / or the slide are held in a vibration-damped manner.

For the production of three-dimensional images of objects, an optical scanner is used both with a device-integrated movement device and with an external scanning movement, both the scanning array on the object and the object on the scanning array being provided, and the relative movements relative to one another being continuous or discontinuous done at intervals. According to the method according to the invention, the object is recorded successively and / or simultaneously in two or more recording modes, the scanner device being activated to record the object, the data of the successive and / or simultaneous acquisition being stored and after the acquisition and / or or partially during the scanning process, the data for a spatial model and / or for a spatial image are processed in a computer.

The recordings are automatically evaluated using this method according to the invention, checked for qualitative parameters, possibly also repeated several times and then scanned again with a modified setting.

The invention will be explained in more detail using an exemplary embodiment. In the accompanying drawing:

1 is a block diagram of a complete system for producing, evaluating and displaying three-dimensional images of objects by means of an optical scanner,

2 shows an optical scanner with a non-parallel imaging geometry, for example in the form of a flat bed scanner, as is used for the three-dimensional recording of objects according to the invention,

3 slides in the form of boxes of different sizes and inner lining,

Fig. 4 shows a marker, shown as a marker frame

5 a slide in the form of a box with a height-adjustable bottom,

6 shows a positioning device for objects or object carriers,

7 shows a scanner with an exchangeable lid with an integrated slide box,

8 shows a scanner with a replaceable lid with an integrated slide box for "head-over operation", design that can be swung open, 9 shows a scanner with a replaceable lid with an integrated slide box for "head-over operation", attachable design,

10 shows a scanner with an electrically controllable additive,

11 shows a modified scanner in an upside-down arrangement,

12 shows a scanner with two scanning arrays,

13 shows a scanner with a scanning array guided on a circular path,

14 a scanner with two scanning arrays and two scanning lights,

15 asymmetrically designed scanning arrays,

16 a scanner with a rotatable slide,

17 a scanner with a height-adjustable glass plate,

F g. 18 a scanner with a sliding glass plate,

19 shows a special form of a scanner in which two fixed scanning arrays are arranged above a conveyor belt,

20 a scanner with two scanning arrays with externally induced scanning movement,

21 an extended software interface for controlling a scanner (TWAIN driver), 22 shows a scanner according to FIG. 2 in a detailed illustration,

23 an optical scanner with parallel imaging optics (scanning beams deflected to the side)

24 object on scanner with parallel imaging optics

25 object on scanner with parallel imaging optics, rotated by 180 °

The device shown in FIG. 1 for producing, evaluating and displaying three-dimensional images of objects consists of an optical scanner 1, a data processing device 2, on which the scanner driver 4 for controlling the scanner 1, and the image data processing 5, each containing a 3D Display module 6, a 3D model generator 7 and / or a holography generator 8, are implemented, and a display device 9. The image data are buffered or stored in all common formats, such as jpg, tif, png or gif. The image data recorded with this device and stored as a 3D model can typically be used as input data for programs based on the principle of finite elements or as input data for the calculation of video sequences, such as used in advertising films. For printed circuit boards and printed circuit boards in industry, the three-dimensional data thus obtained can be used very well for quality assurance and documentation. In the arts and crafts, for example, paintings can be recorded three-dimensionally, and the relief of thickly applied paint can be measured very easily. Other objects are eg medical or biological tissue samples. A doctor can, for example, continuously monitor and archive the swelling of one hand each time the patient is visited. Such a facility supports, for example, cooperation at various locations of large companies by very fast transmission of realistic three-dimensional images of work objects, any network, such as the Internet, being used as the transmission medium. Provided with appropriate software 4 and 5, the system can also "iteratively" record images with other recording modes in order to increase the depth resolution, to eliminate ambiguities in the SD model formation or to optimize the lighting conditions. The scanner 1 shown in FIG. 2 with non-parallel imaging geometry consists of the essential functional elements housing 10, scanning carriage 11, which in turn consists of scanning array 11a and scanning lamp 11b and a glass plate 12 for supporting the objects 13 to be scanned and for protecting the scanning carriage 11. In The object boxes 13 shown in FIG. 3 fix the objects 13 to be scanned. Such a box is an ideal sample holder for the steroscopic scanning of small objects. It enables the objects to be shifted by a defined amount while maintaining orientation. Interfering external light is largely shielded by the box, even if the lid of the scanner cannot be closed. The use of the box further narrows the angular range under which the scanning lamp illuminates the object. In this way it reduces unwanted partial shadowing parallel to the fluorescent tube. In addition, there is homogeneous illuminance at the different scan positions. Without the box, objects, or certain parts of them, if they are relatively far from the glass plate, will be at the extreme scanning positions (am left and right edge of the glass plate) slightly less illuminated. When viewed from the object, the scanning lamp covers a smaller angular range.

The object carrier boxes 14 are then placed and scanned at several locations on the glass plate 12, typically along a displacement in the y direction. The length, width and depth as well as the inner lining of the object carrier boxes are designed for each scanner and / or object. Software-based storage of the standardized box dimensions makes it easier to calculate the image section to be used for the displays. The software-stored depth of the boxes can be used to standardize the depth information. The inner lining can finally be used for color calibration of the scans. The in Fig. The marking 15 shown on the object carrier boxes 14 permits software detection of the box position on the glass plate 12 of the scanner 1. Any marking can be used instead of the marking frame shown. Object carrier boxes with a height-adjustable bottom 16 allow the given depth of field of the scanner 1 to be optimally used. A device (17) that can be placed on the scanner 1 for positioning the objects 13 or object carriers 14 on the basis of scaling in the y direction 18 and x direction 19 is shown in FIG. 6 shown. This device 17 can, for example, be scanner-specific. About the holes etc. respectively . In order to be used across all types and brands, an unspecific fixation in the form of suction cups, straps, tensioning devices etc. intended . The scale 18 is typically attached in length dimensions and / or specific to the scanner, taking exact account of the special non-parallel optics given for the scanner type. Fig. 7 shows a scanner lid with integrated slide box 21, which is used in place of the scanner lid 20 supplied by the manufacturer. For the production of three-dimensional images, the integrated slide box 14 and / or the entire scanner lid is slidably supported. The slide box 14 can also be integrated in a frame 22 on which the scanner 1 is pivotally mounted. Scanner 1 and frame 22 and / or slide box 14 are also slidably connected to one another to produce three-dimensional images. In an arrangement in which the scanner 1 is firmly placed upside down on a support frame 25, a device in the manner of a pan handle 23 with a scale 24 is provided for displacing the slide box 14. In the upside-down arrangement, there is no need to fix the objects 13 in the specimen slide box 14. Very easily, bulk goods etc. can also be detected. By simply integrating the surface shape obtained, a stereoscopic volume measurement can be carried out. The filling quantity of containers in the industry can also be monitored in an ideal way. Before using a commercially available scanner in the upside-down arrangement, clarify with the manufacturer whether the mechanics in this arrangement are designed for continuous operation. Another area of application is seedlings etc. in biological laboratories etc. Especially in the case of such very filigree structures, a vibration-damped mounting of the specimen slides may be useful in order to prevent the objects from vibrating during the scanning process, for example triggered by the work of the stepping motor which controls the scanning carriage 11. to prevent. For example, the scanner can be placed on the seedlings as objects and activated at fixed time intervals. In the meantime, it can be replaced by a lamp to stimulate growth. you can capture the growth of the seedling four-dimensionally in space and time and, if necessary, play back in time-lapse as a film that shows the growth in three dimensions.

In the case of electrically controllable additional devices, these are connected to the computer via all interfaces customary in computer technology, such as SCSI, parallel, serial, IRDA, etc. Any connection topology is conceivable here. All devices can be connected directly to the data processing device 2. The line 26 of the interface can also be looped through by several devices. In this case, a bus-specific differentiation of the devices is necessary, typically using ID numbers.

All of the additional devices described above can also be equipped with electrical drive elements and displacement and / or angle sensors, as shown in FIG. 10. The three-dimensional scanning is fully or largely automated here, all control information is automatically transmitted to and from the computer 2. All interfaces customary in the computer industry can be considered as transmission medium. The control of the additional devices takes place directly via a scanner driver 4. Instead of using additional devices for commercially available scanners 1, structurally modified scanners offer even more extensive possibilities for the production of three-dimensional images of objects. A possibility of displacement of the scanning carriage 11 in the y direction according to FIG. 2 enables a completely automatic production of three-dimensional images of objects. In order to keep the scanning time as short as possible, one would typically take one image during the forward movement of the scanning carriage 11, the other during the backward movement summarize, in which case attention must be paid to a high reproducibility of the mechanics when reversing movement. The displacement in the z direction enables the objects 13 to be scanned in slices, and the depth of focus of the scanner 1 to be better utilized. The modified scanner shown in FIG. 11 in an overhead arrangement 27 integrates, for example, the functionality of a commercially available scanner with that in FIG. 9 support frame 22 shown. One of the advantages of this arrangement is that under certain circumstances the glass plate 12 can be dispensed with, thereby avoiding the influence of reflections, contaminants, scratches and the like. In this arrangement, the upper scanner wall can be replaced by a glass plate, omitted and possibly also provided with a lid. The object 13 in the slide box 14 can then be monitored directly from above, which is particularly important for the adjustment of delicate and unstable objects. This glass plate / opening could typically also be used to illuminate underlying biological cultures that serve as objects. All additives listed above can be integrated into the scanner in an analogous manner. Particularly in the case of the electrically controlled additives, as shown, for example, in FIG. 10, the complex external wiring, possibly also a second power supply unit, is omitted. This means that the scanner and integrated additional device can be optimally coordinated with one another already in the design phase. A scanner 28 with two mutually offset scanning arrays 11 is shown in FIG. The two stereoscopic partial images can thus be captured in one scan. 13 schematically shows a side view of the principle in which the scanning carriage, equipped with a plurality of scanning arrays, can be moved on any path, shown here as a circular path 29. In practice, you often just run a small part of such a track. An interesting variant results if only the lower part of the circular path is realized and a cylindrical glass cover is applied to the section. This construction can be used in the road, for example to measure the tread thickness of car tires. In addition to the scanning arrays 11a, a plurality of scanning lamps 30 can be attached in order to create different lighting conditions, operated individually or in any combination. Scanning with other parts of the electromagnetic spectrum, such as infrared, can also be useful. Instead of the two identical scanning arrays 11a according to FIG. 12, asymmetrical scanning arrays 31 with eccentric virtual projection centers 31 can also be used. Typically, two identical ones are used, which are rotated by 180 ° to each other. This enables the scanner width to be used more efficiently. The rotatable slide box 32 shown in FIG. 16 allows the objects 13 to be scanned in in different orientations. With this you can both modify the lighting conditions and change the orientation of the objects in relation to the direction of displacement. With the height-adjustable glass plate 33 shown in FIG. 17, as with the above-described slide boxes with height-adjustable bottom 16 or the scanning carriage 11 that can be moved in the z direction, the depth of field of the scanner can be better utilized, the sharpness automatically adjusted if necessary, the object in several Detect focus zones or calibrate the stereoscopically detected depth using the mechanically adjusted height control. With the displaceable glass plate 34 shown in FIG. 18, essentially the same displacement of the objects can be achieved as with the device 17 according to FIG. 6. However, it should be noted that in In the case of FIG. 18, scratches etc. on the glass plate always occur approximately at the same point in the image in the individual images, however, in an arrangement according to FIG. 6 at different points. A special form of the scanner is shown in FIG. 19. Here, a double or multiple scanning array 35 is typically arranged in a height-adjustable manner above a conveyor belt with objects 13. In this arrangement, the objects 13 can be detected three-dimensionally as they pass. The scanning array 35 can possibly be brought to the objects 13 dynamically and / or by means of a regulation. This can then be used, for example, to regulate a hot air dryer to, for example, constantly shrinking dried fruit at an optimal distance. In contrast to other distance sensors, the sensitivity is approximately the same across the entire width. A stereoscopic volume measurement of bulk goods is also possible. However, the scanning array 35 can also be arranged rotated by 90 ° and thus discontinuously scan the objects 13 on the conveyor belt 36 in transverse movement. In this special form, with a corresponding coordination of the transverse movement of the scanning array 35 and forward movement of the conveyor belt, even a single scanning array would suffice. 20 shows a scanner with a double scanning array 35 with an externally induced scanning movement. This could typically be used for the mobile recording of reliefs. Typical fields of application are the detection of the roughness of masonry, for example to estimate the amount of coating color required or the condition monitoring of road surfaces and rails. 21 shows the user interface of the modified software interface to the scanner, the so-called TWAIN driver. In addition to the input and output field 38 and the scan detail window 39, which is also available with the classic TWAIN driver there is a so-called stereo module 40. All parameters necessary for stereoscopic acquisition, such as the number of scans, the lateral shift between the scans, and / or the selection of the area to be scanned are input and output via this. Typically, for example in the case of the scanner additions described above, instructions would be given in the form of a graphical output, where the slide box 14 is to be positioned on the glass plate 12 of the scanner 1. Conversely, the values read from the scales 18 and 19 in FIG. 6 could also be entered manually. A scanner driver modified in this way could be made available for download by the scanner manufacturers to scanners already delivered via the Internet.

FIG. 22 shows an optical scanner 1 with non-parallel optics 44 for better illustration of the principle of the production of three-dimensional recordings, shown here by way of example as cylindrical optics. The projection lines 42 converge in the virtual projection center 43, which is a straight line in space. The object 13 is picked up in two positions, position 45 for the right eye and position 46 for the left eye, on the glass plate 12 of the scanner 1. The projection lines 42 meet the object 13 at the two positions 45; 46 at slightly different angles, two stereoscopic partial images are created.

List of the reference symbols used

1 optical scanner

2 data processing device

4 scanner drivers

5 image processing software

6 display module

7 3-D model generator

8 holographic generator

9 display device

10 scanner housings

11 scanning carriage 11a scanning array 11b scanning lamp

12 glass plate

13 subject

14 slide box

15 mark

16 adjustable floor

17 tear rail system

18 y - direction

19 x - direction

20 scanner lids

21 scanner lid with integrated specimen slide box

22 coasters

23 Box shifting device in the form of a pan handle

24 scaling

25 support frames

26 Management of the interface

27 Upside down arrangement

28 scanners

29 circular path Scanning lamp Asymmetrical scanning array Rotatable slide box Height-adjustable glass plate Sliding glass plate Double scanning array Conveyor belt User interface of the software interface to the scanner Input and output field Scanner window, stereo module, electrical components Projection line, virtual projection center, non-parallel optics Position for the right eye Position for the left eye, parallel optics

Claims

claims

1. A device for producing three-dimensional images by means of optical scanners in connection with a data processing device, characterized in that on a computer (2) a software-controlled, commercially available or modified optical scanner (1), which is equipped with a non-parallel or parallel imaging optics (44) is and a special display for three-dimensional representation or conventional display (9) are provided.

Production device according to claim 1, characterized in that, for three-dimensional imaging, commercially available flatbed scanners (1) which are equipped with scanning devices which operate according to a non-parallel or parallel optics (44), with additional devices or modified interchangeable device parts for positioning the objects (13 ) and are equipped to optimize object illumination for three-dimensional imaging.

3. A device for manufacturing according to claim 2, characterized in that the accessories from boxes as a slide (14), boxes with a double bottom (16) as a slide, stop rulers according to the type of tear rail system (17), modified scanner lid (21) with integrated Slide box, modified scanner lid with integrated slide box for overhead operation, sliding slide box for overhead operation, marking (15) for slide box (14) exist.

4. Device for production according to claim 2 and 3, characterized in that the slide boxes (14) are provided with different lengths, widths, depths and inner linings and are specially designed for a scanner type and / or an object type (13).

5. A device for manufacturing according to claim 2 to 4, characterized in that the slides are provided with a automatically recognizable by the software marker (15).

6. Device for manufacturing according to claim 2 to 4, da- ^' characterized in that the boxes (14) have a height-adjustable bottom (16).

7. Device for production according to .Anspruch 1 to 4, characterized in that the height-adjustable floor (16) in one or more specific, predefined

Heights is arranged lockable.

8. A device for manufacturing according to claim 2 and 3, characterized in that a mountable and on the scanner (1) fixable device (17) is provided with which the objects (13) or the slide (14) on or above the glass plate ( 12) of the scanner (1) are reproducible and can be positioned in a defined orientation, this device with scaling

(18; 19) in length dimensions and / or with a device-dependent scaling (18; 19).

9. Device for manufacturing according to claim 2, 3 and 8, characterized in that the device for positioning in the manner of a tear rail, a pantograph, the pen control of a plotter and the like is formed.

10. A device for manufacturing according to claim 2 and 3, characterized in that the box (14) is integrated in an interchangeable lid (21) of the scanner, the lid (21) having a device for displacing the box (14) and / or the entire cover (21) with the fixed box (14) is slidably arranged.

11. A device for manufacturing according to claim 2 and 3, characterized in that the scanner (1) is arranged above the slide, the scanner (1) on a device frame (22) can be placed or pivoted into the working position via a hinge.

12. A device for manufacturing according to claim 1 to 11, characterized in that all the displacements take place via drive elements and / or the positioning which takes place automatically and / or manually by means of drive elements can be detected mechanically.

13. A device for manufacturing according to claim 1 to 12, characterized in that optical, electromechanical, inductive, acoustic or capacitive sensors are provided for the detection of the displacement.

14. A device for manufacturing according to claim 1 to 13, characterized in that the data transmission takes place over all interfaces which can be used in computer technology.

15. A device for manufacturing according to claim 1, characterized in that a modified flatbed scanner (1) with non-parallel or parallel imaging optics (44) is used for three-dimensional detection, with which the inclusion of the object (13) is automatically or partially automatically software-controlled, which is via has a multidimensional displacement device for the scanning carriage (11) and / or has a plurality of stationary or displaceable scanning carriages (11) and / or the scanning carriage (11) is arranged in a controllably guided manner along any curve shape and / or is equipped with a plurality of light sources (30) and / or with scanning arrays (31) constructed asymmetrically and / or with a pivotable beam path and / or with rotatable object carriers (32) and / or with height-adjustable glass plate (33) and / or with a sliding glass plate (34) and / or the glass plate is omitted and / or the cover / housing wall opposite the glass plate (12) is omitted or is likewise replaced by a glass plate (12) and / or Functionality of the additional devices is integrated.

16. A device for manufacturing according to claim 1 and 15, characterized in that the scanning device (11) equipped with a non-parallel or parallel imaging optics (50) is arranged pivotably in the lateral direction and / or the scanning beams (55) can be pivoted via optical or electrical systems are.

17. A device for manufacturing according to claim 1 and 15, characterized in that for scanning the object in different scanning direction, the scanning device is arranged tiltable in and against the direction of movement of the scanning carriage or the scanning beams (55) can be deflected via optical or electrical systems in the direction of movement.

18. A device for manufacturing according to claim 1 and 15 to 17, characterized in that two identical scanning lights are provided before and after the scanning array (11a).

19. A device for manufacturing according to claim 1 to 17, characterized in that one or more identical and / or non-identical and / or modulatable and / or pivotable and / or colored structured scanning lights (54) are provided.

20. A device for manufacturing according to claim 1, characterized in that the scanner and / or the slide

(14) are held in a vibration-dampened manner.

21. A device for manufacturing according to claim 1, characterized in that both an scanner with a device-integrated movement device and with an external scanning movement is used as an optical scanner (1).

22. A device for manufacturing according to claim 1, characterized in that both the scanning array (11a) or a multiple scanning array (35) on the object (13), as well as the object (13) on the scanning array (11a) or on the double scanning array (35) can be passed, the relative movements to one another being continuous or discontinuous at intervals.

23. A method for object detection according to claim 1, characterized in that the object (13) is recorded in succession and / or simultaneously in two or more recording modes and the scanner device is controlled for detection, the data of the successive ones _. and / or simultaneous acquisition are stored and after completion and / or partially during the scanning process is processed by computer to a spatial model and / or spatial image.

24. A method for object detection according to claim 1 and 23, characterized in that the scanning of an object in the forward and backward direction is carried out in two recordings from different angles.

25. A method for object detection according to claim 1 and 23, characterized in that the object is recorded in two orientations rotated by 180 ° against each other.

26. A method for object detection according to claim 1 and 23, characterized in that the recordings are automatically evaluated, checked for qualitative parameters, if necessary also repeated several times, are scanned with modified settings.