CN115225876B - Seamless fusion splicing system for multiple laser projectors - Google Patents
Seamless fusion splicing system for multiple laser projectors Download PDFInfo
- Publication number
- CN115225876B CN115225876B CN202210826112.7A CN202210826112A CN115225876B CN 115225876 B CN115225876 B CN 115225876B CN 202210826112 A CN202210826112 A CN 202210826112A CN 115225876 B CN115225876 B CN 115225876B
- Authority
- CN
- China
- Prior art keywords
- brightness
- bounding box
- screen
- concave
- color
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
- H04N9/3147—Multi-projection systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3179—Video signal processing therefor
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3179—Video signal processing therefor
- H04N9/3182—Colour adjustment, e.g. white balance, shading or gamut
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention discloses a seamless fusion splicing system of a plurality of laser projectors, which comprises a light spot brightness acquisition module, wherein the light spot brightness received by each concave-convex point on a screen is acquired in a scanning mode; the brightness matrix summarizing module sequentially arranges the brightness of the light spots received by each concave-convex point according to the positions of the corresponding concave-convex points to obtain a brightness matrix; the overlapping position determining module extracts the brightness of the overlapping belt by analyzing the brightness matrix, and obtains the position of the overlapping belt; the overlapping brightness fusion module calculates the average value of all light spots on the non-overlapping belt on the screen, sets a general brightness range according to the average value, and simultaneously adjusts the reflectivity of all the concave-convex points on the screen, so that the brightness reflected by each concave-convex point is within the general brightness range. According to the invention, the brightness of each received light spot on the scanning screen is adjusted according to the brightness of the light spot, so that a large amount of human preparation work is saved before display, and the time cost is saved.
Description
Technical Field
The invention relates to the field of image splicing, in particular to a seamless fusion splicing system of a plurality of laser projectors.
Background
In large-scale activities such as scientific and technological display, propaganda training, education and guidance, large-scale projection equipment is not used for displaying images to be put in. When showing, in order to promote visitor's visual effect, most can adopt laser projection's mode, use laser projector to project the content of projection on the screen promptly to reach the effect of showing.
Currently, for a screen with an oversized size, multiple laser projectors are generally used for projection together, as shown in fig. 1, each laser projector respectively bears a part of the laser projection task in the whole, so that, because overlapping portions of adjacent laser projectors have overlapping lasers, the brightness of a projection portion at the overlapping portions is obviously higher than that of the projection portions of other laser projectors projected separately.
For the above-mentioned problems, the currently used method is to load a graphics card in a screen, and is used for setting a picture overlapping band through the graphics card, the overlapping part of the pictures can be realized through the graphics card fusion, after the fusion, the pictures are accurately adjusted according to a fine mode such as 5X5 or 9X9 by using point correction inside a projector, so that the continuity of the pictures displayed by the screen is accepted by viewers.
However, although the above method can make the displayed pictures become coherent, during operation, the method has a certain operation difficulty, a worker needing to prepare finishes placing the positions of the laser projectors in the early stage of display, starts up to obtain the positions of the overlapping bands, and simultaneously adjusts the parameters of the display card and the parameters of each laser projector to finish correction by placing the display card in the screen. Thus, such preparation process requires a lot of manpower and time, and when the equipment needs to be replaced and re-displayed, all the equipment needs to be readjusted, so that a lot of preparation time and a lot of preparation manpower are still required for advanced preparation, and the cost is extremely high.
Disclosure of Invention
The invention aims to overcome the problems in the prior art and provide a seamless fusion splicing system of a plurality of laser projectors, wherein the brightness of each received light spot on a scanning screen is adjusted according to the brightness of the light spot, so that a large amount of human preparation work is saved before display, and the time cost is saved.
Therefore, the invention provides a seamless fusion splicing system of a plurality of laser projectors, which comprises the following components:
the light spot brightness acquisition module acquires the light spot brightness received by each concave-convex point on the screen in a scanning mode;
the brightness matrix summarizing module sequentially arranges the brightness of the light spots received by each concave-convex point according to the positions of the corresponding concave-convex points to obtain a brightness matrix;
the overlapping position determining module extracts the brightness of the overlapping belt by analyzing the brightness matrix and obtains the position of the overlapping belt;
and the superposition brightness fusion module is used for calculating the average value of each light spot on the screen, which is not the superposition belt, setting a general brightness range according to the average value, and simultaneously adjusting the reflectivity of each concave-convex point of the superposition belt on the screen, so that the brightness reflected by each concave-convex point is within the general brightness range.
Further, when the reflectivity of each concave-convex point on the screen is adjusted, the reflectivity is changed by changing the color of each concave-convex point on the screen, and each reflectivity corresponds to one color.
Further, a color converter is used when changing the color of each of the bumps and dips on the screen, the color converter includes a pigment toner therein, and the method includes the steps of:
acquiring the corresponding color of the concave-convex points at the position of the color converter;
obtaining a color value according to the corresponding color of the concave-convex points, and modulating the color by using a pigment color mixer according to the color value;
and coating the prepared color pigment on the surface of the corresponding concave-convex points.
Further, when the position of the color converter is obtained, the RFID electronic tag in the concave-convex point is read by an RFID reader arranged in the color converter, and the position corresponding to the memory in the RFID electronic tag in the concave-convex point is obtained.
Further, the pigment is quick-drying water washing pigment, and the screen has a heating function.
Further, the brightness matrix summarizing module is completed by using a scanner, and the overlapping position determining module when analyzing the brightness matrix to obtain an overlapping belt comprises the following steps:
s1: creating a bounding box such that the size of the bounding box is smaller than the size of the screen;
s2: acquiring brightness values in the bounding box, and calculating the average value of the brightness values in the bounding box as bounding box brightness;
s3: scrolling the bounding box to enable the bounding box to traverse the screen to obtain a bounding box brightness matrix;
s4: obtaining the minimum value in the bounding box brightness matrix, and extracting the corresponding bounding box position of the bounding box brightness with the bounding box brightness larger than the minimum value;
s5: outputting the extracted bounding box position as the position of the overlapping belt, and acquiring the brightness of the overlapping belt.
Further, in the step S5, the steps include:
taking the extracted bounding box position as a scanning area;
reducing the size of the bounding box, obtaining the brightness value in the bounding box, and calculating the average value of the brightness values in the bounding box as the bounding box brightness;
scrolling the bounding box to enable the bounding box to traverse the scanning area to obtain the bounding box brightness array;
obtaining the minimum value in the bounding box brightness array, extracting the corresponding bounding box position of the bounding box brightness with the bounding box brightness larger than the minimum value, and updating the scanning area;
the size of the bounding box is reduced, and the steps are repeated until the size of the bounding box reaches a set value, and the updated scanning area is the coincidence zone;
and outputting the position of the overlapping belt and acquiring the brightness of the overlapping belt.
Further, the screen is a double-sided light-transmitting screen, and a clamp used for clamping the shading cloth is arranged on the side face of the screen.
The seamless fusion splicing system for the multiple laser projectors has the following beneficial effects:
according to the invention, the brightness of each received light spot on the scanning screen is adjusted according to the brightness of the light spot, so that a large amount of human preparation work is saved before display, and the time cost is saved;
when the brightness of the screen is regulated, the invention acquires the general brightness range by counting the brightness of each light spot, regulates each brightness in the screen according to the general brightness range, and traverses the whole screen in a bounding box mode when detecting the brightness, so that the detection of the brightness of the screen is rapidly completed;
the invention does not need to adjust the parameters of the laser projector, does not need to correct the position of the laser projector, and only needs to be installed on a screen of the receiving laser projector.
Drawings
FIG. 1 is a schematic diagram showing the technical effects and principles of using multiple projectors at present;
FIG. 2 is a schematic block diagram of the overall system connection of the present invention;
FIG. 3 is a schematic block diagram of a process for changing the color of each bump on a screen according to the present invention;
FIG. 4 is a schematic block diagram of a process for analyzing a luminance matrix to obtain a coincidence belt in accordance with the present invention.
Description of the embodiments
One embodiment of the present invention will be described in detail below with reference to the attached drawings, but it should be understood that the scope of the present invention is not limited by the embodiment.
In this application, the model and structure of the components are not explicitly known in the prior art, and can be set by those skilled in the art according to the needs of the actual situation, and the embodiments of this application are not specifically limited.
Specifically, as shown in fig. 2-4, an embodiment of the present invention provides a seamless fusion splicing system for multiple laser projectors, including: the system comprises a light spot brightness acquisition module, a brightness matrix summarizing module, a superposition position determining module and a superposition brightness fusion module. The following is a detailed functional description of each module, and the above problems are solved by the coordination of each functional module.
In the invention, the screen used for bearing the light of the laser projector is an acrylic screen, namely a screen with a plurality of concave-convex points on the surface and composed of acrylic material points. The following detailed description of the functional modules is made based on the screen carrying the laser projector.
The light spot brightness acquisition module acquires the light spot brightness received by each concave-convex point on the screen in a scanning mode; the module is used for collecting the photoelectric brightness received by each concave-convex point on the screen, namely the brightness of the light rays on the screen, which are irradiated by the light rays of the laser projector.
The brightness matrix summarizing module sequentially arranges the brightness of the light spots received by each concave-convex point according to the positions of the corresponding concave-convex points to obtain a brightness matrix; the module arranges the received brightness according to the positions of the corresponding concave-convex points to obtain a brightness matrix, wherein the brightness matrix reflects the brightness of each concave-convex point on the whole screen, namely the brightness on the screen.
The overlapping position determining module extracts the brightness of the overlapping belt by analyzing the brightness matrix and obtains the position of the overlapping belt; the module obtains the position of the overlapping belt by processing and analyzing the brightness matrix, and when the position of the overlapping belt is extracted, the module can process and analyze the position in a data numerical analysis mode so as to obtain points with brightness which obviously does not accord with surrounding brightness, and further extract the position of the overlapping belt according to the positions of the points.
And the superposition brightness fusion module is used for calculating the average value of each light spot on the screen, which is not the superposition belt, setting a general brightness range according to the average value, and simultaneously adjusting the reflectivity of each concave-convex point of the superposition belt on the screen, so that the brightness reflected by each concave-convex point is within the general brightness range. The module adjusts the reflectivity of each concave-convex point, so that the brightness reflected by each concave-convex point on the reflected screen is in a common brightness range, and the common brightness range is obtained through the average value of each light spot on the screen which is not the overlapping zone, namely, the light projected by the laser projector has a comfortable viewing effect from the visual effect of people.
In the above technical solution, the system of the present invention may rely on a product device, which is a product independent of the screen, and by moving on the screen and combining the above four modules, the characteristics on the screen are collected and processed, so that the finally processed screen has the effect that the brightness is in the general brightness range after the light range, and the user has a comfortable condition.
Meanwhile, the invention can embed each module into the screen, and the screen is processed, so that the screen has the effect that the brightness is in the general brightness range after the light range is finally processed after the screen is processed, and the user has comfort.
According to the invention, the reflectivity of light rays with high brightness is reduced by adjusting the reflectivity of the light rays, the reflection of the light rays is adjusted from lower cost, and the intensity of the reflected light rays is changed (the local change of a screen), so that the overall visual effect is consistent when a user views the light rays. Meanwhile, when the building is carried out, the professional is not required to put and debug the equipment.
In the invention, when the reflectivity of each concave-convex point on the screen is adjusted, the reflectivity is changed by changing the color of each concave-convex point on the screen, and each reflectivity corresponds to one color. As is known from a great deal of practice of research and development personnel, the reflectivity of the obtained light rays is different for different colors, the reflectivity of the light rays is high for light rays, and the reflectivity of the light rays is low for dark colors, so that the visual effect of a screen is adjusted by adjusting the colors. Compared with other methods, the method has low cost, and the real-time operation process is simple, so that the method is very easy to operate manually on site.
Preferably we can use one product device on which the system of the invention is based, and therefore the invention uses a colour converter when changing the colour of each of the bumps on the screen, said colour converter comprising a pigment colour mixer, when changing the colour of each of the bumps on the screen comprising the steps of:
firstly, acquiring the corresponding color of the concave-convex point of the position of the color converter;
secondly, obtaining a color value according to the corresponding color of the concave-convex points, and modulating the color by using a pigment color mixer according to the color value;
and (III) coating the prepared color pigment on the surface of the corresponding concave-convex point.
According to the technical scheme, the steps are sequentially carried out according to the logic sequence, and the concave-convex points are colored through the color matching device, so that different colors of smearing are carried out on a screen according to the intensity of the corresponding received light, and after reflection, the light intensity is consistent in visual observation of a user. The invention uses product equipment, when in use, the product equipment is smeared on the screen, the smeared area traverses the whole screen, and when not in use, the product equipment is easy to store due to the split design with the screen.
Preferably, when the position of the color converter is obtained, the RFID electronic tag in the concave-convex point is read by an RFID reader arranged in the color converter, and the position corresponding to the memory in the RFID electronic tag in the concave-convex point is obtained. The position is determined by the RFID mode, so that a high-precision positioner is not required to be arranged in the color converter, the cost of the color converter is greatly reduced, and the maintenance cost is also greatly reduced.
Preferably, the pigment is quick-drying washing pigment, the washing pigment on the screen can be cleaned by using a water source after each projection is finished, each use is convenient, the used plane is not limited, the screen has a heating function, the pigment after being smeared can be heated, and the screen after being cleaned by water can be heated, so that the screen can be dried quickly.
In addition, in the invention, the scanned part can be fused into the screen, and can also be independently taken out of the screen to act, in the invention, the brightness matrix summarizing module is completed by using a scanner, and the overlapping position determining module comprises the following steps when analyzing the brightness matrix to obtain an overlapping belt:
s1: creating a bounding box such that the size of the bounding box is smaller than the size of the screen;
s2: acquiring brightness values in the bounding box, and calculating the average value of the brightness values in the bounding box as bounding box brightness;
s3: scrolling the bounding box to enable the bounding box to traverse the screen to obtain a bounding box brightness matrix;
s4: obtaining the minimum value in the bounding box brightness matrix, and extracting the corresponding bounding box position of the bounding box brightness with the bounding box brightness larger than the minimum value;
s5: outputting the extracted bounding box position as the position of the overlapping belt, and acquiring the brightness of the overlapping belt.
In the above technical solution, the bounding box in step S1 is used to detect the brightness in the area where the bounding box is located, and the invention traverses the whole screen in the bounding box, so as to obtain the uniform brightness (represented by the bounding box brightness matrix) of each area in the whole screen, and the area where the overlapping belt is located is gradually screened out through step S4, and for the size of the bounding box, the size of the bounding box is determined according to the size of the screen and the appropriate amount of the size of the concave-convex points on the screen.
Since most users do not know how the size of the bounding box is selected, in the step S5, the following steps are included:
(1) Taking the extracted bounding box position as a scanning area;
(2) Reducing the size of the bounding box, obtaining the brightness value in the bounding box, and calculating the average value of the brightness values in the bounding box as the bounding box brightness;
(3) Scrolling the bounding box to enable the bounding box to traverse the scanning area to obtain the bounding box brightness array;
(4) Obtaining the minimum value in the bounding box brightness array, extracting the corresponding bounding box position of the bounding box brightness with the bounding box brightness larger than the minimum value, and updating the scanning area;
(5) The size of the bounding box is reduced, and the steps are repeated until the size of the bounding box reaches a set value, and the updated scanning area is the coincidence zone;
(6) And outputting the position of the overlapping belt and acquiring the brightness of the overlapping belt.
According to the technical scheme, the steps are sequentially carried out according to the logic sequence, when the size of the initial selected bounding box is overlarge, the obtained range of the overlapping band is unclear and cannot represent the specific range of the overlapping band, so that the size of the bounding box is gradually reduced, the range of the overlapping band can be obtained for each bounding box with the size, when the size of the bounding box is reduced to a set value, namely the minimum value of the bounding box, the overlapping band can be obtained, and compared with the case of using the minimum value size of the bounding box, the method has the advantage that the efficiency of operation execution is obviously improved.
Meanwhile, when the scanning function of the invention can be carried on a product device independently or set by depending on a screen, the whole data is obtained by the method of establishing a three-dimensional model in the product through the data obtained by scanning and the corresponding position when a single product is used. I.e. pixel data simulating a screen in a three-dimensional model, etc.
In the invention, the screen is a double-sided light-transmitting screen, and the side surface of the screen is provided with a clamp used for clamping the shading cloth. Therefore, the invention can be carried on an external product, and the adjustment of light emission of the screen is achieved through the modification of the color on the shading cloth, so that after the adjustment, when the equipment is recovered and cleaned, the shading cloth is cleaned, and meanwhile, the screen can be used on two sides, thereby reducing the difficulty of placing and debugging the equipment.
The foregoing disclosure is merely illustrative of some embodiments of the invention, but the embodiments are not limited thereto and variations within the scope of the invention will be apparent to those skilled in the art.
Claims (6)
1. A multi-laser projector seamless fusion splicing system, comprising:
the light spot brightness acquisition module acquires the light spot brightness received by each concave-convex point on the screen in a scanning mode;
the brightness matrix summarizing module sequentially arranges the brightness of the light spots received by each concave-convex point according to the positions of the corresponding concave-convex points to obtain a brightness matrix;
the overlapping position determining module extracts the brightness of the overlapping belt by analyzing the brightness matrix and obtains the position of the overlapping belt;
the overlapping brightness fusion module calculates the average value of all light spots on the screen, which are not on the overlapping belt, sets a general brightness range according to the average value, and simultaneously adjusts the reflectivity of all concave-convex points of the overlapping belt on the screen so that the brightness reflected by each concave-convex point is within the general brightness range;
when the reflectivity of each concave-convex point of the overlapping belt on the screen is adjusted, changing the reflectivity in a mode of changing the color of each concave-convex point of the overlapping belt on the screen, wherein each reflectivity corresponds to one color;
a color converter for changing the color of each of the plurality of recessed and raised dots of the overlapping belt on the screen, the color converter comprising a pigment toner, the color converter comprising the steps of:
acquiring the corresponding color of the concave-convex points at the position of the color converter;
obtaining a color value according to the corresponding color of the concave-convex points, and modulating the color by using a pigment color mixer according to the color value;
and coating the prepared color pigment on the surface of the corresponding concave-convex points.
2. The system of claim 1, wherein when the position of the color converter is obtained, the RFID electronic tag in the concave-convex point is read by an RFID reader arranged in the color converter, and the position corresponding to the memory in the RFID electronic tag in the concave-convex point is obtained.
3. The system of claim 1, wherein the pigment is a quick-drying water-washable pigment and the screen has a heating function.
4. The system of claim 1, wherein the brightness matrix summarizing module is implemented using a scanner, and the overlapping position determining module is configured to analyze the brightness matrix to obtain the overlapping belt, and comprises the following steps:
s1: creating a bounding box such that the size of the bounding box is smaller than the size of the screen;
s2: acquiring brightness values in the bounding box, and calculating the average value of the brightness values in the bounding box as bounding box brightness;
s3: scrolling the bounding box to enable the bounding box to traverse the screen to obtain a bounding box brightness matrix;
s4: obtaining the minimum value in the bounding box brightness matrix, and extracting the corresponding bounding box position of the bounding box brightness with the bounding box brightness larger than the minimum value;
s5: outputting the extracted bounding box position as the position of the overlapping belt, and acquiring the brightness of the overlapping belt.
5. The system of claim 4, wherein in step S5, the system comprises the following steps:
taking the extracted bounding box position as a scanning area;
reducing the size of the bounding box, obtaining the brightness value in the bounding box, and calculating the average value of the brightness values in the bounding box as the bounding box brightness;
scrolling the bounding box to enable the bounding box to traverse the scanning area to obtain the bounding box brightness array;
obtaining the minimum value in the bounding box brightness array, extracting the corresponding bounding box position of the bounding box brightness with the bounding box brightness larger than the minimum value, and updating the scanning area;
the size of the bounding box is reduced, and the steps are repeated until the size of the bounding box reaches a set value, and the updated scanning area is the coincidence zone;
and outputting the position of the overlapping belt and acquiring the brightness of the overlapping belt.
6. The system of claim 1, wherein the screen is a double-sided light-transmitting screen, and a holder for holding a shade is provided on a side of the screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210826112.7A CN115225876B (en) | 2022-07-14 | 2022-07-14 | Seamless fusion splicing system for multiple laser projectors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210826112.7A CN115225876B (en) | 2022-07-14 | 2022-07-14 | Seamless fusion splicing system for multiple laser projectors |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115225876A CN115225876A (en) | 2022-10-21 |
| CN115225876B true CN115225876B (en) | 2023-06-16 |
Family
ID=83611146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210826112.7A Active CN115225876B (en) | 2022-07-14 | 2022-07-14 | Seamless fusion splicing system for multiple laser projectors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115225876B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1471792A (en) * | 2000-08-30 | 2004-01-28 | 霍尼韦尔国际公司 | Electronic calibration for seamless tiled display using optical function generator |
| CN1688160A (en) * | 2005-04-30 | 2005-10-26 | 广东威创日新电子有限公司 | Split display image edge blending method for large screen |
| CN101727880A (en) * | 2009-11-23 | 2010-06-09 | 清投视讯(北京)科技有限公司 | Projection fusion method of true seamless rear projection large screen display image |
| CN102231099A (en) * | 2011-07-06 | 2011-11-02 | 清华大学 | Method for correcting per-pixel response brightness in multi-projector auto-stereoscopic display |
| CN108989775A (en) * | 2017-06-05 | 2018-12-11 | 北京互动文博科技有限公司 | A kind of projection screen seamless joint method and device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5477185B2 (en) * | 2010-06-17 | 2014-04-23 | セイコーエプソン株式会社 | Multi-projection system, projector, and image projection control method |
-
2022
- 2022-07-14 CN CN202210826112.7A patent/CN115225876B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1471792A (en) * | 2000-08-30 | 2004-01-28 | 霍尼韦尔国际公司 | Electronic calibration for seamless tiled display using optical function generator |
| CN1688160A (en) * | 2005-04-30 | 2005-10-26 | 广东威创日新电子有限公司 | Split display image edge blending method for large screen |
| CN101727880A (en) * | 2009-11-23 | 2010-06-09 | 清投视讯(北京)科技有限公司 | Projection fusion method of true seamless rear projection large screen display image |
| CN102231099A (en) * | 2011-07-06 | 2011-11-02 | 清华大学 | Method for correcting per-pixel response brightness in multi-projector auto-stereoscopic display |
| CN108989775A (en) * | 2017-06-05 | 2018-12-11 | 北京互动文博科技有限公司 | A kind of projection screen seamless joint method and device |
Non-Patent Citations (1)
| Title |
|---|
| 大屏幕投影***中基于软件的无缝拼接技术;俞凌云;王毅刚;王亢;;计算机仿真(第05期);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115225876A (en) | 2022-10-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10891724B2 (en) | Automated system and method for clarity measurements and clarity grading | |
| CN103196917B (en) | Based on online roll bending material surface blemish detection system and the detection method thereof of CCD line-scan digital camera | |
| CN108683907A (en) | Optics module picture element flaw detection method, device and equipment | |
| US20200211257A1 (en) | Photometric image processing | |
| CN106604005B (en) | A kind of projection TV Atomatic focusing method and system | |
| CN106231179A (en) | One the most double optical-filter switcher changing method and device | |
| CN105812790A (en) | Evaluation method for perpendicularity of image sensor light-sensitive surface and optical axis and optical test card | |
| CN111738969B (en) | Image fusion method, device and computer readable storage medium | |
| CN109191520B (en) | Plant leaf area measuring method and system based on color calibration | |
| CN110458964B (en) | Real-time calculation method for dynamic illumination of real environment | |
| US20200019041A1 (en) | Lighting assembly for producing realistic photo images | |
| US20140286569A1 (en) | Robust automatic determination and location of macbeth color checker charts | |
| CN110838149A (en) | Camera light source automatic configuration method and system | |
| CN108351199A (en) | Information processing unit, information processing method and program | |
| CN113092489A (en) | System and method for detecting appearance defects of battery | |
| Meyer et al. | Electronic image analysis of crop residue cover on soil | |
| TW201516397A (en) | Bubble inspection system for glass | |
| CN115225876B (en) | Seamless fusion splicing system for multiple laser projectors | |
| CN106773158A (en) | A kind of movable type seeks liquid crystal display pixel qualities analytical equipment and a method certainly | |
| CN101815190B (en) | Projection display system and characteristic analysis method thereof | |
| CN103091332B (en) | Detection method and detection system of U-shaped powder pipe based on machine vision | |
| JP2009021964A (en) | Image composition apparatus, image compositing method and image compositing program | |
| CN110412056A (en) | A kind of vehicle-mounted glass molds group automatic optical detection method and device | |
| JP2019158711A (en) | Image processing system, image processing device, and image processing program | |
| CN110544222B (en) | Visual transmission image sharpening processing method and system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |