DE102004046151B4 - Device for the visual display of detailed graphic information - Google Patents

Abstract

contraption for visual presentation of graphical information with a first Graphic surface area, on the graphic information with a first degree of optical resolution visually perceptible, as well as with at least one second graphic surface area, on which the graphic information with a higher optical resolution level as the first degree of resolution visually perceptible, wherein the second graphical surface area is smaller than the first graphic surface area and the second one Graphic surface area at least partially overlapped with the first graphic surface area and in the overlap area those on the first graphic surface area represented graphical information on the second graphic surface area with the second degree of resolution visually perceptible, wherein the second graphical surface area relative to the first graphic surface area is movable, a detection unit is provided, which is a relative position of the second detected relative to the first graphic surface area, and at least an imaging system is provided, at least on the second graphic surface area visually perceptible representable information in dependence the relative position between the second and the first graphics surface area provides.

Description

Technical area

The The invention relates to a visual display device graphical information with a first graphic surface area the graphic information with a first degree of optical resolution visually perceptible, as well as with at least one second graphic surface area, on which the graphic information with a higher optical resolution level as the first degree of resolution visually perceptible, wherein the second graphical surface area is smaller than the first graphic surface area and the second one Graphic surface area at least partially overlapped with the first graphic surface area and in the overlap area those on the first graphic surface area represented graphical information on the second graphic surface area with the second degree of resolution visually perceptible.

A Device of the aforementioned type is currently considered the foremost Development stage in the technology area of graphical representation visually perceptible information under the condition of an interactive viewing possibility view the graphically representable information.

nowadays find often large format Screen or projection techniques Input eg into areas architecture, construction and graphic image and processing, such as for map or satellite image editing, just a few typical fields of application representative of others to call, for the purpose of a clear Presentation of graphical information on their view and assessment by appropriate users, who mainly have an overview of large format Want to provide image content.

For as possible large format graphical representation of visually perceptible information in a conventional manner cathode ray tubes, but in particular plasma or LCD displays whose maximum screen size is currently on a maximum of about 40 inches is limited. Also located are so-called OLED displays in the development stage, but you can do such Film displays do not yet produce in comparatively large area dimensions. To be larger-sized To realize image representations serve so-called light projectors in Connection with a screen or ground glass, as for example in the Case of the so-called rear projection technique be used successfully. In particular, the rear projection technology offers the further format enlargement the possibility a gapless joining the projection surfaces a large number of individual projectors. In this context, let to an already technically realized combination of 24 individual projectors referenced, the individual projection surfaces mosaic to an oversized huge Projection image without gaps together whose consideration as well as analysis by a multitude can be made by persons at the same time. The realized project even includes the use of 2 times 24 projectors for display a stereo projection.

Though allows the multi-display technology described above a large-scale overview graphical information, which makes working in a team at and the same optically displayed object is possible and this with a very high Detail resolution, but such multi-display arrangements are technically very complicated to realize. This is reflected firstly in the need for an exact Adjustment in the mechanical assembly of the mosaic-like individual to be assembled Mono displays, on the other hand, it requires a high synchronization as well as optical adjustment process to a consistent color impression from all imaging devices to reach.

applies to circumvent the above problems of mono-display technology, however, one is confronted with the problem of only limited optical resolution. In many technical as well as business application areas are for the visualization of visually perceptible information optical degrees of resolution desired, the with the currently available Pixel densities of 1280 × 1024 (SXGA) or 1600 × 1200 (UXGA) at currently available large format LCD or plasma displays can not be reached satisfactorily are.

Although the lack of coarse-resolution mono-displays using a known, image-processing so-called magnifying glass function is at least partially compensated, with those illustrated graphics section, which you want to consider in detail, ie with a larger scale, but not one higher optical resolution is displayed. However, this has the disadvantage that, firstly, an intervention by the user is required and, secondly, the overall overview relating to the entirety of the displayed image information is quickly lost. In addition, the relationship between the enlarged area shown in detail and the rest, less well resolved area around the magnifying glass area is not given. Thus, for example, in a 10-magnifying magnifying glass 1% of the area covered by the magnifying glass in a visually better resolution whereas 99% of the area covered by the magnifying glass is simply covered and visually lost to a viewer.

Around To take account of this problem, a projection system is created which can be traced back to Patrick Baudisch and the initial short explained represents the generic state of the art. That of Baudisch proposed system for large format Presentation of visually observable information provides the opportunity an image section of interest with a higher image resolution or with a higher one optical resolution to bring a viewer to view. The projection system sees this Baudisch type a large format projection before, to those with a projector, whether in front or rear projection, a coherent one Image is projected with a projector typical resolution, however the desire for one as possible detailed information reproduction is not enough. For displaying high-resolution optical Information is a second graphic surface area in the screen integrated, for example in the form of a high-resolution LCD or plasma display, the is inserted seamlessly into the projection plane of the projection screen and shown on the same that image portion with an increased optical resolution is, based on the entire projection screen the full field This is due to the integration of the high-resolution display in the projection surface is lost from the overall projected image.

There the placement of the high-resolution small Physically fixed displays with respect to the entire projection surface is, a user can by appropriate technical input means the projected overall image at its discretion along the projection plane too to move this way with a specific subarea high resolution to be able to look at. Although this allows Projection system according to Baudisch the consideration of a small Subarea with high optical resolution of a large format but otherwise grossly dissolved Picture, whereby the observer is always oriented around the small one Part of peripheral area perceive peripheral coarse residual image fraction but the system is limited to a single workstation limited, relative to which the display is aligned within the screen is. Further details can be found in the following source: "Keeping Things in Context: A Comparative Evaluation of Focus Plus Context Screens, Overviews and Zooming. Baudisch, P. et al. CHI 2002, April 20-25, 2002, Minneapolis, Minn., USA. Vol. 4, Issue No. 1, pp. 259-266. (see also: http://www.patrickbaudisch.com/projects/focuspluscontextscreens/index.htm) Often However, in modern working groups there is a desire that several Persons at the same time work on an object or a visually represented Want to discuss object together, so that proposed by Baudisch Projection system in the manner of a single workstation no satisfactory solution represents.

Farther is from the document US 2002/0167531 A1 a projection system known that a first projection area with pixels of a first Pixel size, as well a second projection screen with Pixels of a second one different from the first pixel size Has pixel size, wherein the first and second projection surfaces are formed and attached are that a picture, which at least on a part the first and the second projection surface is shown to a viewer without Interruption or discontinuities appears.

Presentation of the invention

Of the Invention is based on the object, a device for visual Representation of graphical information to be used for one possible is that a lot of people at the same time at a graphic representable object can work interactively. A very essential one Aspect is the above possibility of the desired representation of sub-picture areas with a higher optical resolution Make detailed analyzes of the visually discernible information can. The system should work with as possible be easy to implement and only a small constructive as well as cost-relevant effort require.

The solution the object underlying the invention is specified in claim 1. The concept of the invention advantageously further-forming features Subject of the dependent claims and in particular with reference to the description.

The device according to the invention is based on the principle of the human eye, according to which a small area with highest optical resolution is provided on the retina of the human eye, the so-called visual pit or fovea centralis, an area with a particularly high density of visual cells, the so-called Suppositories and chopsticks. The human perception is such that it always aligns the eyes in such a way that the detail being considered, on which the human eye focuses, is imaged onto the fovea, ie the area with the highest spatial resolution. The rest of the image area, to which the human eye is not focused, is nevertheless perceived, but with decreasing optical resolution the further the areas are spaced from the focus area.

Transfer to the above-described graphical image display technique It should also be noted that when working on an interactive display the user always has a certain detail at a certain point in time, d. H. focused on a picture detail. In this area exists for the user the need for the highest Resolution, while the surrounding peripheral image areas only with lower resolution and be perceived with lesser interest - according to the above represented natural Perception of perception of the human eye.

outgoing from the consideration described above, the solution according to the device such that for the visual representation of graphical information a first graphic surface area, on the graphic information with a first degree of optical resolution visually perceptible, and at least a second Graphic surface area, on which the graphic information with a higher optical resolution level as the first degree of resolution visually are representable representable are provided, wherein the second graphic surface area smaller is dimensioned as the first graphic surface area and the second one Graphic surface area at least partially overlapped with the first graphic surface area and in the overlap area those on the first graphic surface area represented graphical information on the second graphic surface area with the second degree of resolution visually perceptible, wherein the second graphical surface area relative to the first graphic surface area is movably arranged. To ensure that the image content, those on the second graphics surface area with a higher optical resolution represented exactly correspond to the image contents of the second graphic surface area on the first graphic surface area are covered, a detection unit is provided, which the Relative position of the second relative to the first graphic surface area detected. In this way it is always ensured that that image area which is on the first graphic surface area of the second Graphic surface area is covered. With this information, at least one imaging System at least the on the second graphic surface area visually perceptible representable information in dependence the relative position between the second and the first graphics surface area ready. Here, those correspond to the second graphic surface area always those image information the second graphic surface area covered on the first graphic surface area, however with the peculiarity that the graphic information is with a higher one resolution or detailed to be brought to the presentation.

Advantageously, the second graphics surface area is designed in the manner of a portable flat screen, such as, for example, in the form of an LCD or plasma display. As in the above-described region of highest optical resolution in the human eye, the fovea centralis, the portable flat panel serves a user as the viewing area of the highest optical resolution by moving the portable flat screen over the graphical information displayed on the first lower-resolution graphic surface area , By preferably wireless or non-contact determination of the relative position
between the portable flat screen relative to the first graphic surface area, for example in the form of a projection surface, preferably a rear projection surface, or also designed as a monitor surface, as the portable flat screen, so as LCD or plasma display surface, it is possible to display the image content on the portable flat screen so that it fits geometrically precisely over the graphical information on the large-sized first graphic surface area. In contrast to the known, initially mentioned magnifying glass function occur in the device according to the invention no image loss by covering of image parts. The transition at the edge of the high-resolution portable flat-panel display to the large-scale first graphic surface area surrounding the portable flat-screen display can be adjusted discontinuously or with a continuous transitional range depending on user behavior in terms of resolution. Thus, it is possible to fully preserve the imaging geometry in the transition between the portable flat panel to the surrounding first graphic surface area.

to Registration of spatial Relative position between the respective first and second graphics surface area are contactless working detection techniques can be used, such as, for example, the use a video camera with a corresponding, the video images evaluating Unit for determining the position of the second moved by a user Graphic surface area, preferably in the form of the above-mentioned portable flat screen. Also, those skilled in the art are equivalent Detection techniques known, such as, for example, radio-assisted transponder systems or triangulation method. In principle, all are contactless working spatially resolving Detector systems that provide the desired Relative position are able to determine.

The solution according to the device allows If desired, the use of a plurality of so-called second, high-resolution graphics surface areas, so that it is possible for a plurality of users, on one and the same first graphics surface area on which, for example, a large-sized image with coarse resolution visually perceptible represented with a number corresponding to the number of users to work from portable flat screens whose relative position is recorded individually. In this way it is possible for each individual user to make user-specific detailed views of one and the same image. The device according to the invention can therefore be used in particular in all team-compatible application areas in which a time-synchronous cooperation between several users on one and the same optically displayed image is desired.

Also the ease of use of the device according to the invention is an essential Aspect, especially since the user has to choose one to be considered Detail area of any technical navigation aids must, for example. Button control or joystick control, rather allows the portable flat screen to the user through immediate manual Shift just those locally limited area to detail to show on the user optically focused. The immediate physical Implementation of the optically focused area by manual placement of the portable flat screen into the focused area creates a high degree of user-friendliness.

In a further preferred embodiment has the at least one portable flat screen over a Computer unit with corresponding input means and a communication unit, via the in the computer unit entered by input means control commands for directly influencing the image information on the first Graphic surface area is transmitted wirelessly to an image-forming system can, by determining the graphical information on the first graphic surface area and can be influenced.

So sees an embodiment for the realization of the first graphic surface area a large format LCD, plasma display before, on which as graphic information, for example. the aerial view of a city is shown. To certain street areas with a higher one resolution to be able to investigate a user puts a portable flat screen on the large format Display and can by suitable positioning of the portable Flat screen on the graphic representation of the cityscape suitable city areas with a high detail resolution too investigate. Is the portable flat screen as indicated above, combined with a computational purity, so the user can appropriate Control commands via Inputting input means into the computer unit integrated in the portable flat screen, the for Another image analysis can trigger suitable functions. For example. can detail pictures stored within the computer unit and for subsequent examination the portable flat screen regardless of the large format Aerial view. It is also possible via suitable input means and a properly provided communication unit Issue control commands, by the example, the contrast sharpness or the brightness of the large format cityscape displayed on the large screen suitable to be changed can.

Short description of invention

The Invention will be described below without limiting the general inventive concept of exemplary embodiments described by way of example with reference to the drawings. It demonstrate:

1 schematic representation of all components for the realization of the device according to the invention as well as

2 Top view of a large-format display with a smaller portable flat screen.

Ways to execute the Invention, industrial applicability

In 1 are shown schematically all components for the successful realization of the device according to the invention for the visual display of graphic information. For further nomenclature, it is agreed that the large-sized first graphic surface area is referred to as a peripheral display PD and may preferably be in the form of a reflected-light or rear-projection device or as an LCD or plasma display. The peripheral display PD is basically orientable vertically, horizontally or in an inclined manner, which is directed to the individual application requirements of the respective use. In the in 1 schematized illustrated situation, it is assumed that the peripheral display PD is arranged horizontally, in the manner of a table, on which the second graphic surface area in the form of a portable flat screen is provided in a freely lying manner. In the following, the portable flat screen is referred to as fovea display FD.

For relative position detection between the small-format fovea display FD and the großforma The peripheral display PD serves a spatially resolving sensor S, for example in the form of a video camera, which is connected to a suitable measuring system MS whose measurement results are forwarded to an image-providing system BS, through which ultimately at least those on the fovea display FD visually perceptually presented graphical information. The imaging system BS also advantageously provides for the provision of graphical information that can be displayed on the peripheral display PD.

Either the sensory relative position determination between fovea display FD and peripheral display PD as well as the image signal transmission between the imaging system BS and the portable fovea display FD is contactless, preferably by way of a wireless data transmission standard such as Bluetooth technology, WLAN technology or by means of suitable IR or radio technology.

Next the formation of the fovea display FD as a purely passive flat screen, the exclusively for one high-resolution visual representation of the transmitted to the portable flat screen graphic information, the fovea display can be replaced by appropriate complement with an independent one Computer trained to autonomously working, so-called slate PC be allowed, which also allows independent of the image-giving system and the peripheral display temporarily used for other tasks too become. Work multiple users in a team on a single peripheral display PD, so every single user can have their own autonomous fovea display If necessary, hang FD on the peripheral display to individual Generate detail views. The required registration and deregistration of the single fovea display devices at Image-giving system BS is preferably carried out automatically by the functionality of the measuring system MS.

A preferred embodiment of the fovea display as an autonomous slate PC also allows one extended usability of the computer so far that the fovea display FD over suitable provided input elements, such as touch input, buttons, controls, etc. the functionality of the overall system can be extended and improved. For example. is it possible over suitable Input means on the fovea display the contrast or the brightness of the peripheral display PD suitable.

In the 2 Fig. 12 schematically illustrates a situation in which two users N1 and N2 work on a horizontally arranged peripheral display PD. User N1 holds his fovea display FD over a suitable area of the peripheral display PD on which a line L is imaged in a relatively coarse resolution. In the area of the fovea display FD, the line trace L covered by the fovea display FD is displayed geometrically accurately, but with an increased optical resolution. From the schematic representation according to 2 It can be clearly seen that, in contrast to known magnifying glass functions, no image information is lost by the fovea display FD in the way of a cover. Rather, all covered by the fovea display FD image areas of the peripheral display PD are completely displayed but with increased optical resolution.

It let's assume that the fovea displays are designed as slate PCs are, so their use even outside the solution system possible is. The user N2, whose fovea display FD is not on the peripheral display PD rests, for example, spaced from the peripheral display PD, study his stored details in peace.

FD

Foveal display

PD

Peripheral Display

S

sensor

MS

measuring system

BS

imaging system

N1, N2

user

Claims (11)

An apparatus for visually displaying graphical information having a first graphics surface area on which graphical information having a first degree of optical resolution is visually perceptible, and at least one second graphics surface area on which the graphical information having a higher optical resolution than the first level of resolution is visually perceptible wherein the second graphic surface area is sized smaller than the first graphic surface area and the second graphic surface area is at least partially overlapped with the first graphic surface area; and in the region of overlap, the graphic information displayed on the first graphic surface area is visually perceptible on the second graphic resolution second graphic surface area the second graphic surface area is movable relative to the first graphic surface area, an E is provided, which detects a relative position of the second relative to the first graphic surface area, and at least one image-providing system is provided, the at least on the second graphic surface area visually perceptible information as a function of the relative position between the second and the first Gra phikoberflächenbereich provides. Device according to claim 1, characterized in that that the second graphic surface area in the manner of a portable flat screen, preferably as an LCD or Plasma display is formed. Device according to claim 3, characterized in that that the flat screen is over a computer unit having input means. Device according to Claim 2 or 3, characterized that the at least one image giving system on the flat screen Visually displayable information wirelessly to the Flat screen transmitted. Device according to one of claims 1 to 4, characterized that the first graphic surface area as at least one projection surface, preferably rear projection surface, or as monitor surface, preferably LCD or plasma display surface, is formed. Device according to one of Claims 1 to 5, characterized that a plurality of second graphic surface areas are provided. Device according to one of claims 1 to 6, characterized that the detection unit is the spatial Relative position between the second and the first graphics surface area contactless determined. Device according to claim 7, characterized in that in that the detection unit comprises at least one video camera and a Video image evaluating unit includes. Device according to claim 7, characterized in that the detection unit is a radio-assisted transponder system or has a Funiangiangulationsystem. Device according to one of claims 1 to 9, characterized that the first graphic surface area horizontally vertical or oblique is arranged, and that of the second graphic surface area sliding directly over the first graphic surface area is movable and / or stored. Device according to one of claims 1 to 10, characterized the image-giving system is the one on the first graphic surface area provides visually perceptible representable information, and in that input means are provided on the second graphic surface area and a communication unit control commands for influencing the one on the first graphic surface area Visible perceptible presentable information can be generated.