CN101806989A - Projection display system - Google Patents
Projection display system Download PDFInfo
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- CN101806989A CN101806989A CN200910006679A CN200910006679A CN101806989A CN 101806989 A CN101806989 A CN 101806989A CN 200910006679 A CN200910006679 A CN 200910006679A CN 200910006679 A CN200910006679 A CN 200910006679A CN 101806989 A CN101806989 A CN 101806989A
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- projection
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- projected image
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Abstract
The invention relates to a projection display system, which comprises a projection device, a projection size detection device and a playing parameter setting module. The projection device is used for projecting a projection image on a projection surface. The projection size detection device is used for detecting the size of a projection image and comprises a camera device and a processing module. The playing parameter setting module is electrically connected with the projection device and the projection size detection device, wherein the playing parameter setting module receives the calculated size of the projection image and sets playing parameters of the projection device according to the size of the projection image. The invention provides a projection display system for calculating the size of a projection image and a projection display system for adjusting the playing parameters of the projection image according to the size of the projection image, thereby achieving the optimal effect.
Description
Technical field
The present invention relates to a kind of projection display system, relate in particular to a kind of projection display system with projection picture size pick-up unit.
Background technology
Along with the progress of science and technology, personal computer or notebook, or even personal digital assistant or the like is very universal.No matter be in family or company, often need utilize projector that the film in personal computer, notebook or the personal digital assistant, photo or report are presented on the giant-screen when home entertaining or the meeting report and watch to majority.For asking ornamental film that the effect of cinema's giant-screen is arranged, or report needs representing of large-scale projected area, and the size of the control projected image that projector projected is also more and more important.
Yet, in the current known technology, focal length or the projector distance on projector and the projecting plane size that change projected image of most projectors by adjusting projection lens.This moment, most users nearly all only can be careful the readability of projected image, and the size of ignoring projected image changes the variation of the visual effect of being brought.
Yet for instance, when the size of projected image became big, the details of many pictures all can be presented by clear.But under same output brightness, the received brightness of big more then this unit area of Pixel Dimensions will be more little, and the related image quality that can influence projected image presents.
In view of this, generation is thus satisfied in conception of the present invention.The invention provides the method for the size of a kind of projection display system and calculating projected image, and, adjust the play parameter of projector, to improve the playback quality of projector according to detected next picture size.
Summary of the invention
Fundamental purpose of the present invention is to provide projection display system to calculate the size of projected image.
For reaching above-mentioned purpose, the invention provides a kind of projection display system, it has a projection size pick-up unit, and in order to calculate the projection size of this display system, wherein, this projection size pick-up unit comprises a camera head and a processing module; Wherein this camera head is in order to capture a camera picture, and wherein this camera picture is contained a projected image of this optical projection system; And this processing module is electrically connected with this camera head, to receive this camera picture, and calculate a shadow according to the dimension scale of this projected image and this camera picture and take the photograph ratio (P/C ratio), and take the photograph ratio is extrapolated this projected image to a look-up table size with this shadow.
Another fundamental purpose of the present invention is to provide projection display system according to the size of projected image projected image to be adjusted play parameter, to reach optimized effect.
For reaching above-mentioned purpose, the invention provides a kind of projection display system, comprise projection arrangement, projection size pick-up unit and play parameter setting module.Wherein projection arrangement is in order to throw projected image on a projecting plane.The projection size pick-up unit is in order to detect the size of projected image, and the projection size pick-up unit comprises camera head and processing module.Wherein camera head be arranged on projection arrangement at a distance of specified distance, so that the camera head acquisition comprises the camera picture of projected image; And processing module is electrically connected with camera head, receiving camera picture, and calculates shadow according to the dimension scale of projected image and camera picture and takes the photograph ratio, and take the photograph ratio is extrapolated projected image to look-up table size with shadow.
The play parameter setting module is electrically connected with projection arrangement and projection size pick-up unit, and wherein the play parameter setting module receives the size of the projected image of being calculated, and sets the play parameter of projection arrangement according to the size of projected image.
Description of drawings
Fig. 1 is about the functional structure chart of an embodiment of projection display system of the present invention;
Fig. 2 is about the environment for use synoptic diagram of an embodiment of projection display system of the present invention;
Fig. 3 is about the synoptic diagram of the look-up table of projection display system of the present invention.
And the description of reference numerals in the above-mentioned accompanying drawing is as follows:
1 projection display system
10 projection arrangements
11 zoom lens
20 projection size pick-up units
21 camera heads
211 screens
22 processing modules
221 look-up tables
2211 shadows are taken the photograph ratio
The dimensional parameters of 2212 projected images
2,213 first projection multiplying power parameters
2,214 second projection multiplying power parameters
23 projection multiplying power pick-up units
30 play parameter setting modules
80 projecting planes
91 projected images
92 camera pictures
The d1 fixed range
The d2 specific range
Embodiment
For above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, cited below particularlyly go out preferred embodiment, and conjunction with figs., be described in detail below.
Below please in the lump referring to figs. 1 to the embodiment of Fig. 3 about projection display system of the present invention.Wherein Fig. 1 is about the functional structure chart of an embodiment of projection display system of the present invention; Fig. 2 is about the environment for use synoptic diagram of an embodiment of projection display system of the present invention; And Fig. 3 is about the synoptic diagram of the look-up table of projection display system of the present invention.
As shown in Figure 1, projection display system 1 of the present invention comprises projection arrangement 10, projection size pick-up unit 20 and play parameter setting module 30.Wherein projection arrangement 10 is in order to projection projected image 91 (as shown in Figure 2) on projecting plane 80.Projection size pick-up unit 20 is in order to detect the size of projected image 91, and projection size pick-up unit 20 comprises camera head 21 and processing module 22.Wherein camera head 21 be arranged on projection arrangement 10 at a distance of specific range d2 place, perhaps in one embodiment, this camera head 21 also can be integrated in the projection arrangement 10, so that camera head 21 captures the camera picture 92 that comprises projected image 91; And processing module 22 is electrically connected with camera head 21, receiving camera picture 92, and calculates shadow according to the dimension scale of projected image 91 and camera picture 92 and takes the photograph ratio (P/C ratio).In one embodiment of this invention, processing module 22 comprises a plurality of look-up tables 221, and takes the photograph ratio is extrapolated projected image 91 to look-up table 221 size with shadow.
Play parameter setting module 30 is electrically connected with projection arrangement 10 and projection size pick-up unit 20, and wherein play parameter setting module 30 receives the size of the projected image of being calculated 91, and sets the play parameter of projection arrangement 10 according to the size of projected image 91.In one embodiment of this invention, play parameter comprise the image display parameters of projection arrangement 10 and volume play parameter one of them.In one embodiment of this invention, image display parameters comprises tristimulus values (RGB gain value), compensation exposure value (offset value), saturation value (saturation value), brightness value (lightness value), correlative value (contrast value), hue value, color temperature value (color temperature), colour gamut value (color gamut), sharpness value (sharpness value), gal code value (gamma value), length and width ratio or paranoma value, but the present invention is not as limit.
In one embodiment of this invention, shadow is taken the photograph the area ratio that ratio is projected image 91 and camera picture 92, but the present invention is not as limit.For instance, shadow is taken the photograph one of them the ratio of length, width and catercorner length that ratio also can be projected image 91 and camera picture 92.
In one embodiment of this invention, camera head 21 has a plurality of convergent-divergents (zoom) multiplying power, camera head 21 can be different convergent-divergent multiplying power acquisition projected image 91, the convergent-divergent multiplying power parameter when wherein camera head 21 is with its acquisition camera picture 92 sends processing module 22 to.
In one embodiment of this invention, projection arrangement 10 has zoom lens 11, to project the projected image 91 of different projection multiplying powers; And projection size pick-up unit 20 also comprises projection multiplying power pick-up unit 23, in order to detecting the projection multiplying power of projection arrangement 10, and the projection multiplying power that is detected is sent to the reckoning of processing module 22 for projection picture size.
In one embodiment of this invention, projection multiplying power pick-up unit 23 detect projection arrangements 10 zoom lens 11 the anglec of rotation and draw the projection multiplying power, but the present invention is not as limit.For instance, projection multiplying power pick-up unit 23 also can draw the projection multiplying power by the transmission brightness value that detects projected image.Again for instance, projection multiplying power pick-up unit 23 also can utilize the mode of measuring resistance to detect, and when zoom lens 11 dolly cameras rotated to minimum projection multiplying power, testing resistance was touched distance for the shortest, the voltage maximum that is spread out of; Otherwise maximum projection multiplying power is the voltage minimum then.
In one embodiment of this invention, a convergent-divergent multiplying power of each look-up table 221 corresponding camera head 21.As shown in Figure 3, each shadow is taken the photograph the corresponding a plurality of projection picture size parameters of ratio in the look-up table 221, wherein each projection multiplying power of the corresponding projection arrangement 10 of each projection picture size parameter.
As shown in Figure 2, projection arrangement 10 throws projected image 91 on projecting plane 80, and camera head 21 captures projected images 91 and is presented at formation camera picture 92 on the screen 211.Wherein, projection arrangement 10 and projecting plane 80 be at a distance of a fixed range d1, and camera head 21 be arranged on projection arrangement 10 at a distance of specific range d2 place.Be noted that, though herein with digital camera as camera head 21, camera head 21 of the present invention does not exceed with digital camera.
Next please continue with reference to figure 3, Fig. 3 is at specific convergent-divergent multiplying power parameter, projection arrangement 10 and projecting plane 80 fixed distance d1 and camera head 21 and the look-up table 221 of projection arrangement 10 under the condition of specific range d2.In one embodiment of this invention, look-up table 221 comprises that shadow takes the photograph the dimensional parameters 2212 of ratio 2211, projected image, the first projection multiplying power parameter 2213 and the second projection multiplying power parameter 2214, but the present invention is not as limit.
In one embodiment of this invention, take the photograph ratio 2211 when shadow and be 81%, when the projection multiplying power of projection arrangement 10 is the first projection multiplying power, can obtains projected image 91 according to look-up table 221 and be of a size of at 70 o'clock.And as previously mentioned, a specific convergent-divergent multiplying power of the pairing look-up table 221 corresponding camera heads 21 of Fig. 3 is so then may be suitable for another to look-up table that should the convergent-divergent multiplying power after camera head 21 is adjusted into another convergent-divergent multiplying power.
To sum up institute is old, and no matter the present invention is all showing it totally different in the feature of known technology with regard to purpose, means and effect, earnestly asks to perceive, and grants quasi patent early, Jiahui society, and the true feeling moral is just.It should be noted that above-mentioned many embodiment give an example for convenience of explanation, the interest field that the present invention advocated should be as the criterion so that claim is described certainly, but not only limits to the foregoing description.
Claims (13)
1. projection display system comprises:
One projection arrangement is in order to projection one projected image on a projecting plane;
One projection size pick-up unit, in order to detect the size of this projected image, this projection size pick-up unit comprises:
One camera head, be arranged on this projection arrangement at a distance of a specified distance, so that this camera head acquisition comprises a camera picture of this projected image;
One processing module, it is electrically connected with this camera head, receiving this camera picture, and calculates a shadow according to the dimension scale of this projected image and this camera picture and takes the photograph ratio, and take the photograph ratio is extrapolated this projected image to a look-up table size with this shadow; And
One play parameter setting module, it is electrically connected with this projection arrangement and this projection size pick-up unit, and wherein this play parameter setting module receives the size of the projected image of being calculated, and sets a play parameter of this projection arrangement according to the size of this projected image.
2. projection display system as claimed in claim 1, wherein this shadow is taken the photograph the area ratio of ratio for this projected image and this camera picture.
3. projection display system as claimed in claim 1, wherein this shadow is taken the photograph ratio and is one of them ratio of length, width and the catercorner length of this projected image and this camera picture.
4. projection display system as claimed in claim 1, wherein this camera head has a plurality of convergent-divergent multiplying powers, and the convergent-divergent multiplying power parameter when wherein this camera head captures this camera picture with it sends this processing module to.
5. projection display system as claimed in claim 4, wherein this processing module comprises a plurality of look-up tables, and each look-up table is to a convergent-divergent multiplying power that should camera head.
6. projection display system as claimed in claim 1, wherein this projection arrangement has a zoom lens, to project the projected image of different projection multiplying powers.
7. projection display system as claimed in claim 6, wherein each shadow is taken the photograph the corresponding a plurality of projection picture size parameters of ratio in this look-up table, and wherein each projection picture size parameter is to each projection multiplying power that should projection arrangement.
8. projection display system as claimed in claim 6, wherein this projection size pick-up unit also comprises a projection multiplying power pick-up unit, throw multiplying power in order to detect one of this projection arrangement, and the projection multiplying power that is detected is sent to the reckoning of this processing module for projection picture size.
9. projection display system as claimed in claim 8, wherein this projection multiplying power pick-up unit detect this projection arrangement zoom lens the anglec of rotation and draw this projection multiplying power.
10. projection display system as claimed in claim 8, wherein this projection multiplying power pick-up unit draws this projection multiplying power by the transmission brightness value that detects this projected image.
11. projection display system as claimed in claim 1, wherein this play parameter comprise an image display parameters of this projection arrangement and a volume play parameter one of them.
12. a projection display system, it has a projection size pick-up unit, and in order to calculate the projection size of this display system, wherein, this projection size pick-up unit comprises:
One camera head, in order to capture a camera picture, wherein this camera picture is contained a projected image of this optical projection system; And
One processing module, it is electrically connected with this camera head, receiving this camera picture, and calculates a shadow according to the dimension scale of this projected image and this camera picture and takes the photograph ratio, and take the photograph ratio is extrapolated this projected image to a look-up table size with this shadow.
13. a projection display system, in order to throw a projected image, it comprises:
One projection size pick-up unit, it comprises a camera picture of this projected image by camera head acquisition, and take the photograph ratio, and take the photograph the size that ratio is extrapolated this projected image according to this shadow by the shadow that this camera picture calculates this projected image and this camera picture; And
One play parameter setting module, it receives the size of this projected image, and sets a play parameter of this projection arrangement according to the size of this projected image.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910006679A CN101806989A (en) | 2009-02-13 | 2009-02-13 | Projection display system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910006679A CN101806989A (en) | 2009-02-13 | 2009-02-13 | Projection display system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101806989A true CN101806989A (en) | 2010-08-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910006679A Pending CN101806989A (en) | 2009-02-13 | 2009-02-13 | Projection display system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102685426A (en) * | 2011-03-18 | 2012-09-19 | 精工爱普生株式会社 | Information storage medium, terminal device, and display system |
| CN105991950A (en) * | 2015-03-06 | 2016-10-05 | 江苏宜清光电科技有限公司 | Projector enabling aspect ratio customizable display |
| CN107360406A (en) * | 2017-07-11 | 2017-11-17 | 上海九孚实业有限公司 | sign locating system |
| CN108124145A (en) * | 2016-11-30 | 2018-06-05 | 中兴通讯股份有限公司 | A kind of method and device for projector equipment |
| WO2018153139A1 (en) * | 2017-02-22 | 2018-08-30 | 中兴通讯股份有限公司 | Method for implementing projection processing, projection device, and computer storage medium |
| CN108761980A (en) * | 2018-04-19 | 2018-11-06 | 苏州佳世达光电有限公司 | A kind of projection arrangement |
| CN110491316A (en) * | 2019-07-08 | 2019-11-22 | 青岛小鸟看看科技有限公司 | A kind of projector and its method for controlling projection |
-
2009
- 2009-02-13 CN CN200910006679A patent/CN101806989A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102685426A (en) * | 2011-03-18 | 2012-09-19 | 精工爱普生株式会社 | Information storage medium, terminal device, and display system |
| CN102685426B (en) * | 2011-03-18 | 2015-04-01 | 精工爱普生株式会社 | Terminal device and display system |
| CN105991950A (en) * | 2015-03-06 | 2016-10-05 | 江苏宜清光电科技有限公司 | Projector enabling aspect ratio customizable display |
| CN108124145A (en) * | 2016-11-30 | 2018-06-05 | 中兴通讯股份有限公司 | A kind of method and device for projector equipment |
| WO2018153139A1 (en) * | 2017-02-22 | 2018-08-30 | 中兴通讯股份有限公司 | Method for implementing projection processing, projection device, and computer storage medium |
| CN107360406A (en) * | 2017-07-11 | 2017-11-17 | 上海九孚实业有限公司 | sign locating system |
| CN107360406B (en) * | 2017-07-11 | 2020-08-25 | 上海九孚实业有限公司 | Signpost positioning system |
| CN108761980A (en) * | 2018-04-19 | 2018-11-06 | 苏州佳世达光电有限公司 | A kind of projection arrangement |
| CN110491316A (en) * | 2019-07-08 | 2019-11-22 | 青岛小鸟看看科技有限公司 | A kind of projector and its method for controlling projection |
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Open date: 20100818 |