CN110708526A - Illuminance measuring method, measuring device, computer equipment and storage medium - Google Patents
Illuminance measuring method, measuring device, computer equipment and storage medium Download PDFInfo
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Abstract
The invention discloses an illuminance measurement method, a measurement device, computer equipment and a storage medium. The method comprises the following steps: controlling a projection module to be tested to respectively project channel images of different color channels of the test image to a projection screen; controlling an image acquisition device to respectively acquire projection images of the different color channels from the projection screen; calculating color information values corresponding to the color channels according to the projection images; respectively calculating color illumination values corresponding to the color channels according to the color illumination conversion formulas corresponding to the color channels and the color information values; and calculating the illumination value of the projection module to be detected according to the color illumination value corresponding to each color channel. According to the embodiment of the invention, the image acquisition device is used for quickly and accurately measuring the illumination value of the projection image projected by the projection module to be measured, so that the problems of high device cost and high labor cost caused by measuring the illumination value by using an illumination meter in the prior art can be solved, and the method has practical application significance.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to an illuminance measurement method, a measurement apparatus, a computer storage medium, and a computer device.
Background
The image that its thrown out need be tested after the projection module is assembled, judge whether accord with the outgoing specifications through measuring the illumination value of the projection image that projection module projected on the projection screen. The scheme of general module manufacturer adopts the illuminometer to acquire the illuminance value of projection image, but owing to need acquire the illuminance value in a plurality of regions of projection image, need move the illuminometer to the central point in each region in proper order, or adopt a plurality of illuminometers to acquire the illuminance value, and it is longer or measuring device input cost is higher to consume time, needs higher cost of labor simultaneously.
Disclosure of Invention
An object of the present invention is to provide an illuminance measurement method, a measurement apparatus, a computer storage medium, and a computer device to solve at least one of the problems existing in the prior art.
A first aspect of the present invention provides an illuminance measurement method, including:
controlling a projection module to be tested to respectively project channel images of different color channels of the test image to a projection screen;
controlling an image acquisition device to respectively acquire projection images of the different color channels from the projection screen;
calculating color information values corresponding to the color channels according to the projection images;
respectively calculating color illumination values corresponding to the color channels according to the color illumination conversion formulas corresponding to the color channels and the color information values;
and calculating the illumination value of the projection module to be detected according to the color illumination value corresponding to each color channel.
Optionally, before the controlling the projection module to be tested respectively projects the channel images of the different color channels of the test image onto the projection screen, the illuminance measurement method further includes:
and acquiring a color illumination conversion formula corresponding to each color channel of the image acquisition device according to the illumination of at least one group of sample images with different color ratios projected to the projection screen by the sample projection module.
Optionally, the obtaining a color-illuminance conversion formula corresponding to each color channel of the image capturing device according to illuminance of at least one group of sample images with different color ratios projected onto the projection screen by the sample projection module further includes:
controlling a sample projection module to respectively project channel images of different color channels of at least one group of sample images with different color ratios to the projection screen;
controlling the image acquisition device to respectively acquire projection images of different color channels from the projection screen;
calculating color information values corresponding to the color channels according to the projection images;
respectively detecting illuminance values on the projection screen under different color channels by using an illuminometer;
and acquiring a color illumination conversion formula corresponding to each color channel of the image acquisition device according to the color information value and the illumination value corresponding to each color channel.
Optionally, the obtaining of the color-illuminance conversion formula corresponding to each color channel of the image acquisition device according to the color information value and the illuminance value corresponding to each color channel further includes:
and acquiring a color illumination conversion formula corresponding to each color channel of the image acquisition device by a least square method according to the color information value and the illumination value corresponding to each color channel.
Optionally, the detecting the illuminance values on the projection screen under the different color channels respectively by using the illuminometer further comprises:
and arranging the illuminometer at the center position of the projected image on the projection screen so as to respectively detect the illuminance values of the center positions of the projected images under different color channels by using the illuminometer.
Optionally, the detecting the illuminance values on the projection screen under the different color channels respectively by using the illuminometer further comprises:
and respectively arranging a plurality of illuminometers at the center positions of a plurality of preset areas of the projected image on the projection screen so as to respectively detect the illuminance values of the center positions of the preset areas of the projected image under different color channels by using the illuminometers.
Optionally, the different color channels include a red channel, a green channel, and a blue channel.
The invention provides an illuminance measuring device in a second aspect, which comprises an image acquisition device and a processor;
the image acquisition device is configured to acquire projection images of different color channels projected by the projection module to be tested from the projection screen;
the processor is configured to calculate color information values corresponding to the color channels according to the projection images, calculate color illumination values corresponding to the color channels according to color illumination conversion formulas corresponding to the color channels and the color information values, and calculate illumination values of the projection module to be tested according to the color illumination values corresponding to the color channels.
A third aspect of the invention provides a computer readable storage medium having stored thereon a computer program which, when executed by a processor, performs the method according to the first aspect.
A fourth aspect of the invention provides a computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the method according to the first aspect when executing the program.
The invention has the following beneficial effects:
aiming at the existing problems, the invention sets an illumination measuring method, a measuring device, computer equipment and a storage medium based on an image acquisition device, and can solve the problems of high device cost and high labor cost in the prior art of measuring the illumination value by using an illuminometer by quickly and accurately measuring the illumination value of the projection module to be measured for projecting an image by using the image acquisition device, thereby having practical application significance.
Drawings
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Fig. 1 shows a flowchart of an illuminance measurement method provided by an embodiment of the present invention;
FIG. 2 is a schematic view of a scene for measuring the illumination of a projection module under test;
fig. 3 is a block diagram showing a structure of an illuminance measuring apparatus according to another embodiment of the present invention;
fig. 4 shows a schematic structural diagram of a computer device according to another embodiment of the present invention.
Detailed Description
In order to more clearly illustrate the invention, the invention is further described below with reference to preferred embodiments and the accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and is not to be taken as limiting the scope of the invention.
As shown in fig. 1, an embodiment of the present invention provides an illuminance measurement method based on an image acquisition device, including: controlling a projection module to be tested to respectively project channel images of different color channels of the test image to a projection screen; controlling an image acquisition device to respectively acquire projection images of the different color channels from the projection screen; calculating color information values corresponding to the color channels according to the projection images; respectively calculating color illumination values corresponding to the color channels according to the color illumination conversion formulas corresponding to the color channels and the color information values; and calculating the illumination value of the projection module to be detected according to the color illumination value corresponding to each color channel.
In one specific example, as shown in fig. 2, the illuminance measurement method includes:
firstly, the projection module 10 to be tested is controlled to project the test image onto the projection screen 20 according to different color channels.
In this embodiment, the different color channels include a red channel, a green channel, and a blue channel, for example, the projection module to be tested is controlled to project a red channel image, a green channel image, and a blue channel image of the test image onto the projection screen 20, i.e., the projection module to be tested is controlled to project channel images of three color channels of the test image.
And secondly, controlling the image collecting device 30 to collect the projection images 40 of different color channels from the projection screen 20.
In this embodiment, the image capturing device 30 may be an industrial camera, or may be another image capturing device, and the cameras of the industrial camera are used to capture test images projected onto the projection screen to obtain projection images, that is, the image capturing device is controlled to capture projection images of three colors of a red channel, a green channel, and a blue channel.
And thirdly, calculating color information values corresponding to the color channels according to the projection images.
In this embodiment, the data processing device processes the projection image of each color channel image acquired by the image acquisition device, for example, for the projection image of the red color channel, the projection image is divided into at least one region, that is, the projection image may be regarded as one region, or the projection image may be divided into a plurality of regions, and the color information value of the center position of each region is calculated.
And fourthly, respectively calculating the color illumination value corresponding to each color channel according to the color illumination conversion formula corresponding to each color channel and the color information value.
In this embodiment, the color-illuminance conversion formula is a color-illuminance conversion formula obtained in advance according to the characteristics of the image capturing apparatus, i.e., the industrial camera.
In some optional implementation manners of this embodiment, before the controlling the projection module to be tested to respectively project the channel images of the different color channels of the test image onto the projection screen, the illumination measurement method further includes: and acquiring a color illumination conversion formula corresponding to each color channel of the image acquisition device according to the illumination of at least one group of sample images with different color ratios projected to the projection screen by the sample projection module.
The method specifically comprises the following steps:
the method comprises the steps of firstly, controlling a sample projection module to respectively project channel images of different color channels of at least one group of sample images with different color ratios to the projection screen.
In this embodiment, a sample projection module is used as a test sample to project a sample image, where the sample image may be one image or a plurality of images, twenty sets of sample images are adopted in this embodiment, and the sample projection module is used to respectively project each set of sample images onto a projection screen according to a red channel, a green channel, and a blue channel. The greater the number of sample images, the more accurate the color luminance conversion formula.
And secondly, controlling the image acquisition device to respectively acquire projection images of different color channels from the projection screen.
In this embodiment, the industrial camera is controlled to respectively shoot the projection screen to obtain the projection image of each color channel corresponding to the channel image of each color channel of each sample image projected by the sample projection module.
And thirdly, calculating color information values corresponding to the color channels according to the projection images.
In the present embodiment, the data processing device processes the projection image of each color channel captured by the industrial camera, and acquires the color information value of the center position of each region of the projection image.
And fourthly, respectively detecting the illuminance values on the projection screen under different color channels by using an illuminometer.
In this embodiment, the illuminometer is disposed on the projection screen to detect the illuminance value of the projected image, respectively, corresponding to the channel image of each color channel of each sample image projected by the sample projection module.
In some optional implementations of this embodiment, the illuminometer is disposed at a center position of the projected image on the projection screen to detect illuminance values of the center position of the projected image in different color channels, respectively, using the illuminometer. That is, one illuminometer is used, and the illuminometer is installed at the center position of the projected image on the projection screen, and the illuminance value at that position is detected.
In another alternative implementation, a plurality of illuminometers are respectively arranged at the center positions of a plurality of preset areas of the projected image on the projection screen, so that the illuminometers are used for respectively detecting the illuminance values of the center positions of the preset areas of the projected image under different color channels. That is, a plurality of illuminometers are used, and the center positions of the areas divided from the projection image are set at positions corresponding to the projection screen, thereby realizing detection of illuminance values at the center positions of the plurality of areas. A plurality of illumination values are adopted for detection, and the accuracy of the detected illumination values can be effectively improved.
And fifthly, acquiring a color illumination conversion formula corresponding to each color channel of the image acquisition device according to the color information value and the illumination value corresponding to each color channel.
In the present embodiment, channel images projected at respective color channels by twenty sets of sample images: the industrial camera shoots sixty projected images of twenty groups of three color channels, the data processing device respectively obtains color information values of the center positions of all areas on the projected images according to the sixty projected images, for example, color information values of the center positions of nine areas of a red channel of a first sample image, compares the color information values with illumination values detected by an illuminometer of the red channel of the sample image at the center positions of the nine areas, and calculates a conversion formula of the color information values and the illumination values in the red channel.
Further, a color illumination conversion formula corresponding to each color channel of the image acquisition device is obtained through a least square method according to the color information value and the illumination value corresponding to each color channel.
For example,
the luminance values for the red channel are:
EV_R＝K_R*R+B_R；
EV _ R is an illumination value of a red channel, R is a color information value of the red channel, K _ R is a proportionality coefficient of the red color information value and the illumination value, and B _ R is a deviation value of the red color information value and the illumination value.
The luminance values for the green channel are:
EV_G＝K_G*R+B_G；
EV _ G is an illumination value of a green channel, G is a color information value of the green channel, K _ G is a proportionality coefficient of the green color information value and the illumination value, and B _ G is a deviation value of the green color information value and the illumination value.
The luminance values for the blue channel are:
EV_B＝K_B*R+B_B
EV _ B is an illumination value of a blue channel, B is a color information value of the blue channel, K _ B is a proportionality coefficient of the blue color information value and the illumination value, and B _ B is a deviation value of the blue color information value and the illumination value.
And after obtaining the color illumination conversion formula corresponding to each color channel, substituting the color information values of each color channel obtained by projecting the test image by the projection module to be tested into the color illumination conversion formula corresponding to the color to calculate the color illumination values corresponding to different color channels, wherein the color information value of each color channel is the average value of the color information values of the central positions of the areas in a certain color channel.
And finally, calculating the illumination value of the projection module to be tested according to the color illumination value corresponding to each color channel.
In this embodiment, the illuminance values of the red channel, the green channel and the blue channel are summed to obtain the illuminance value of the projection module to be measured.
For example, Ev _ White — Ev _ R + Ev _ G + Ev _ B;
wherein EV _ R is an illumination value of a red channel of the projection module to be tested, namely an illumination value of a red color field; EV _ G is an illumination value of a green channel of the projection module to be detected, namely an illumination value of a green color field; EV _ B is an illumination value of a blue channel of the projection module to be detected, namely an illumination value of a blue color field; ev _ White is the White field illumination value of the projection module to be tested, namely the illumination value comprising the red color field illumination value, the green color field illumination value and the blue color field illumination value.
It should be noted that, in this embodiment, the red channels, the green channels and the blue channels as the different color channels are only used to illustrate a specific embodiment, the projection screen may be a projection screen or a projection curtain, and the like, and the device that presents projection influence, the image acquisition device and the module to be measured may be located on both sides of the projection screen or on one side of the projection screen, and the more the division number of the area is, the more accurate the finally obtained illumination value of the projection module to be measured is, and a person skilled in the art should select according to actual application requirements to meet actual application as a design criterion, and details are not described herein.
As shown in fig. 3, another embodiment of the present invention provides an illuminance measuring apparatus, including an image collecting device and a processor (data processing device), wherein the image collecting device is configured to collect projection images of different color channels projected by a projection module to be measured from a projection screen; the processor is configured to calculate color information values corresponding to the color channels according to the projection images, calculate color illumination values corresponding to the color channels according to color illumination conversion formulas corresponding to the color channels and the color information values, and calculate illumination values of the projection module to be tested according to the color illumination values corresponding to the color channels.
In this embodiment, through image acquisition device and treater can measure the illumination value of the projection module projection image that awaits measuring fast, accurately, can solve among the prior art and utilize the illuminometer to measure the device of illumination value with high costs, the high problem of cost of labor, have practical application meaning.
Since the illuminance measurement device provided in this embodiment corresponds to the illuminance measurement method provided in the above embodiment, the previous embodiments are also applicable to the illuminance measurement device provided in this embodiment, and detailed description is not given in this embodiment.
Another embodiment of the present invention provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements: controlling a projection module to be tested to respectively project channel images of different color channels of the test image to a projection screen; controlling an image acquisition device to respectively acquire projection images of the different color channels from the projection screen; calculating color information values corresponding to the color channels according to the projection images; respectively calculating color illumination values corresponding to the color channels according to the color illumination conversion formulas corresponding to the color channels and the color information values; and calculating the illumination value of the projection module to be detected according to the color illumination value corresponding to each color channel.
In practice, the computer-readable storage medium may take any combination of one or more computer-readable media. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the present embodiment, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
A computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Computer program code for carrying out operations for aspects of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, Smalltalk, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).
As shown in fig. 4, another embodiment of the present invention provides a schematic structural diagram of a computer device. The computer device 12 shown in FIG. 4 is only one example and should not bring any limitations to the functionality or scope of use of embodiments of the present invention.
As shown in FIG. 4, computer device 12 is in the form of a general purpose computing device. The components of computer device 12 may include, but are not limited to: one or more processors or processing units 16, a system memory 28, and a bus 18 that couples various system components including the system memory 28 and the processing unit 16.
The system memory 28 may include computer system readable media in the form of volatile memory, such as Random Access Memory (RAM)30 and/or cache memory 32. Computer device 12 may further include other removable/non-removable, volatile/nonvolatile computer system storage media. By way of example only, storage system 34 may be used to read from and write to non-removable, nonvolatile magnetic media (not shown in FIG. 4, and commonly referred to as a "hard drive"). Although not shown in FIG. 4, a magnetic disk drive for reading from and writing to a removable, nonvolatile magnetic disk (e.g., a "floppy disk") and an optical disk drive for reading from or writing to a removable, nonvolatile optical disk (e.g., a CD-ROM, DVD-ROM, or other optical media) may be provided. In these cases, each drive may be connected to bus 18 by one or more data media interfaces. Memory 28 may include at least one program product having a set (e.g., at least one) of program modules that are configured to carry out the functions of embodiments of the invention.
A program/utility 40 having a set (at least one) of program modules 42 may be stored, for example, in memory 28, such program modules 42 including, but not limited to, an operating system, one or more application programs, other program modules, and program data, each of which examples or some combination thereof may comprise an implementation of a network environment. Program modules 42 generally carry out the functions and/or methodologies of the described embodiments of the invention.
The processor unit 16 executes various functional applications and data processing by running a program stored in the system memory 28, for example, implementing an image capture device-based illuminance measurement method provided by an embodiment of the present invention.
Aiming at the existing problems, the invention sets an illumination measuring method, a measuring device, computer equipment and a storage medium based on an image acquisition device, and can solve the problems of high device cost and high labor cost in the prior art of measuring the illumination value by using an illuminometer by quickly and accurately measuring the illumination value of the projection module to be measured for projecting an image by using the image acquisition device, thereby having practical application significance.
It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it will be obvious to those skilled in the art that other variations or modifications may be made on the basis of the above description, and all embodiments may not be exhaustive, and all obvious variations or modifications may be included within the scope of the present invention.
Claims (10)
1. An illuminance measurement method characterized by comprising:
controlling a projection module to be tested to respectively project channel images of different color channels of the test image to a projection screen;
controlling an image acquisition device to respectively acquire projection images of the different color channels from the projection screen;
calculating color information values corresponding to the color channels according to the projection images;
respectively calculating color illumination values corresponding to the color channels according to the color illumination conversion formulas corresponding to the color channels and the color information values;
and calculating the illumination value of the projection module to be detected according to the color illumination value corresponding to each color channel.
2. The method of claim 1, wherein before the projection module under test respectively projects the channel images of different color channels of the test image onto a projection screen, the method further comprises:
and acquiring a color illumination conversion formula corresponding to each color channel of the image acquisition device according to the illumination of at least one group of sample images with different color ratios projected to the projection screen by the sample projection module.
3. The method of claim 2, wherein the obtaining a color illumination conversion formula corresponding to each color channel of the image capturing device according to the illumination of at least one set of sample images with different color ratios projected onto the projection screen by the sample projection module further comprises:
controlling a sample projection module to respectively project channel images of different color channels of at least one group of sample images with different color ratios to the projection screen;
controlling the image acquisition device to respectively acquire projection images of different color channels from the projection screen;
calculating color information values corresponding to the color channels according to the projection images;
respectively detecting illuminance values on the projection screen under different color channels by using an illuminometer;
and acquiring a color illumination conversion formula corresponding to each color channel of the image acquisition device according to the color information value and the illumination value corresponding to each color channel.
4. The illuminance measurement method according to claim 3, wherein the obtaining of the color illuminance conversion formula corresponding to each color channel of the image capturing device according to the color information value and the illuminance value corresponding to each color channel further comprises:
and acquiring a color illumination conversion formula corresponding to each color channel of the image acquisition device by a least square method according to the color information value and the illumination value corresponding to each color channel.
5. The method of claim 4, wherein the detecting the illumination values on the projection screen with the illuminometer for the different color channels further comprises:
and arranging the illuminometer at the center position of the projected image on the projection screen so as to respectively detect the illuminance values of the center positions of the projected images under different color channels by using the illuminometer.
6. The method of claim 4, wherein the detecting the illumination values on the projection screen with the illuminometer for the different color channels further comprises:
and respectively arranging a plurality of illuminometers at the center positions of a plurality of preset areas of the projected image on the projection screen so as to respectively detect the illuminance values of the center positions of the preset areas of the projected image under different color channels by using the illuminometers.
7. The illuminance measurement method according to claim 5 or 6, wherein the different color channels include a red channel, a green channel, and a blue channel.
8. An illuminance measuring device is characterized by comprising an image acquisition device and a processor;
the image acquisition device is configured to acquire projection images of different color channels projected by the projection module to be tested from the projection screen;
the processor is configured to calculate color information values corresponding to the color channels according to the projection images, calculate color illumination values corresponding to the color channels according to color illumination conversion formulas corresponding to the color channels and the color information values, and calculate illumination values of the projection module to be tested according to the color illumination values corresponding to the color channels.
9. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the method according to any one of claims 1-7.
10. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the method according to any of claims 1-7 when executing the program.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111854935A (en) * | 2020-09-24 | 2020-10-30 | 歌尔股份有限公司 | Projection system illumination measuring method, apparatus and readable storage medium |
| CN113740035A (en) * | 2021-08-26 | 2021-12-03 | 歌尔光学科技有限公司 | Projection quality detection method, device, equipment and readable storage medium |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040085477A1 (en) * | 2002-10-30 | 2004-05-06 | The University Of Chicago | Method to smooth photometric variations across multi-projector displays |
| US20080166043A1 (en) * | 2007-01-05 | 2008-07-10 | Silicon Optix Inc. | Color and geometry distortion correction system and method |
| CN101287059A (en) * | 2007-09-14 | 2008-10-15 | 西北工业大学 | Detection method for characteristic of edge and angle point of color image |
| CN101621701A (en) * | 2009-01-04 | 2010-01-06 | 四川川大智胜软件股份有限公司 | Correcting method of multiple projector display wall colors of arbitrary smooth curve screens independent of geometric correction |
| CN101674443A (en) * | 2009-09-08 | 2010-03-17 | 长春理工大学 | Method for correcting colors of projector |
| CN101897191A (en) * | 2007-12-21 | 2010-11-24 | 微视公司 | Laser projection white balance tracking |
| US20110057943A1 (en) * | 2009-09-10 | 2011-03-10 | Victor Ivashin | Balancing Luminance Disparity in a Display by Multiple Projectors |
| CN102244757A (en) * | 2011-06-07 | 2011-11-16 | 北京邮电大学 | Color calibration method of large multi-projection screen based on projector-camera system |
| CN104539921A (en) * | 2014-11-26 | 2015-04-22 | 北京理工大学 | Illumination compensation method based on multi-projector system |
| CN110177263A (en) * | 2019-05-24 | 2019-08-27 | 峰米(北京)科技有限公司 | Calibration system and method for projector |
-
2019
- 2019-10-15 CN CN201910977965.9A patent/CN110708526A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040085477A1 (en) * | 2002-10-30 | 2004-05-06 | The University Of Chicago | Method to smooth photometric variations across multi-projector displays |
| US20080166043A1 (en) * | 2007-01-05 | 2008-07-10 | Silicon Optix Inc. | Color and geometry distortion correction system and method |
| CN101287059A (en) * | 2007-09-14 | 2008-10-15 | 西北工业大学 | Detection method for characteristic of edge and angle point of color image |
| CN101897191A (en) * | 2007-12-21 | 2010-11-24 | 微视公司 | Laser projection white balance tracking |
| CN101621701A (en) * | 2009-01-04 | 2010-01-06 | 四川川大智胜软件股份有限公司 | Correcting method of multiple projector display wall colors of arbitrary smooth curve screens independent of geometric correction |
| CN101674443A (en) * | 2009-09-08 | 2010-03-17 | 长春理工大学 | Method for correcting colors of projector |
| US20110057943A1 (en) * | 2009-09-10 | 2011-03-10 | Victor Ivashin | Balancing Luminance Disparity in a Display by Multiple Projectors |
| CN102244757A (en) * | 2011-06-07 | 2011-11-16 | 北京邮电大学 | Color calibration method of large multi-projection screen based on projector-camera system |
| CN104539921A (en) * | 2014-11-26 | 2015-04-22 | 北京理工大学 | Illumination compensation method based on multi-projector system |
| CN110177263A (en) * | 2019-05-24 | 2019-08-27 | 峰米(北京)科技有限公司 | Calibration system and method for projector |
Non-Patent Citations (3)
| Title |
|---|
| 吴金吉: "多通道投影图像的颜色校正技术研究", 《中国优秀硕士学位论文全文数据库（电子期刊）信息科技辑》 * |
| 周立经等: "面向各向异性投影幕亮度一致性校正方法的研究", 《光学技术》 * |
| 陈锋: "多投影系统颜色自动校正技术及应用的研究", 《中国博士学位论文全文数据库（电子期刊）信息科技辑》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111854935A (en) * | 2020-09-24 | 2020-10-30 | 歌尔股份有限公司 | Projection system illumination measuring method, apparatus and readable storage medium |
| CN111854935B (en) * | 2020-09-24 | 2021-01-22 | 歌尔股份有限公司 | Projection system illumination measuring method, apparatus and readable storage medium |
| CN113740035A (en) * | 2021-08-26 | 2021-12-03 | 歌尔光学科技有限公司 | Projection quality detection method, device, equipment and readable storage medium |
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