CN105933684A - AF method with interactive function and projector - Google Patents

AF method with interactive function and projector Download PDF

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Publication number
CN105933684A
CN105933684A CN201610244929.8A CN201610244929A CN105933684A CN 105933684 A CN105933684 A CN 105933684A CN 201610244929 A CN201610244929 A CN 201610244929A CN 105933684 A CN105933684 A CN 105933684A
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CN
China
Prior art keywords
image
module
specific image
specific
projection screen
Prior art date
Application number
CN201610244929.8A
Other languages
Chinese (zh)
Inventor
蔡洪发
Original Assignee
深圳市印象科技有限公司
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Priority to CN201610244929.8A priority Critical patent/CN105933684A/en
Publication of CN105933684A publication Critical patent/CN105933684A/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00Details of colour television systems
    • H04N9/12Picture reproducers
    • H04N9/31Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3141Constructional details thereof
    • H04N9/317Convergence or focusing systems

Abstract

The present invention discloses an AF method with an interactive function and a projector. The method comprises a step of projecting a first specific image in a projection screen and adjusting the definition of the first specific image through the projector, a step of projecting a second specific image on the projection screen and storing the current image through an image capture module, a step of projecting a third specific image which comprises multiple image modules with n*n arrays, wherein n is a positive integer and is larger than 2, and the current image is stored through the image capture module, a step of subtracting the second specific image and the third specific image and obtaining multiple image modules with n*n arrays, and a step of calculating the coordinates of the multiple image modules, obtaining an actual coordinate set, and establishing a mapping relation between the actual coordinate set and the display coordinate point set set in a program. According to the technical scheme of the invention, the time needed by projector focusing can be reduced, and the user experience is improved.

Description

Atomatic focusing method and scialyscope with interactive function

Technical field

The present invention relates to optical focus technical field, particularly to a kind of auto-focusing with interactive function Method and scialyscope.

Background technology

Focusing is the process focused in projection screen position by scialyscope, and current scialyscope is being adjusted Jiao Shi, needs by manually going adjustment focusing wheel or focussing knob to make projection screen be made apparent from.Manually adjust Burnt process ratio is relatively time-consuming and precision is relatively low.

Summary of the invention

The main object of the present invention is to provide a kind of Atomatic focusing method having interactive function, it is intended to it is right to reduce The burnt time, improve Consumer's Experience.

For achieving the above object, the present invention proposes a kind of Atomatic focusing method with interactive function, should Atomatic focusing method with interactive function comprises the following steps:

Launch the first specific image on the projection screen and adjust described first specific image by scialyscope Definition;

Launch the second specific image on the projection screen, preserve present image by image capture module; Then launching the 3rd specific image, wherein said 3rd specific image includes the image of multiple n × n array Module, n is positive integer and n >=2, preserves present image by image capture module;Special by described second Determine image to subtract each other with described 3rd specific image, obtain the image module of multiple n × n array;

Calculate the coordinate of multiple image module obtain actual coordinate point set and with the displaing coordinate that sets in program Point set sets up mapping relations.

Preferably, the described Atomatic focusing method with interactive function specifically includes following steps:

Launch the first specific image on the projection screen and adjust described first specific image by scialyscope Definition;

Launch the second specific image on the projection screen, preserve present image by image capture module;So After launch the 4th specific image again, preserve present image by image capture module;Described 4th specific pattern As including the single image module near described 4th specific image center, by described second specific pattern As subtracting each other with described 4th specific image, it is thus achieved that the center of single image module and this single image module is sat Mark;

Launch the 3rd specific image on the projection screen, preserve present image by image capture module;Its Described in the 3rd specific image include the image module of multiple n × n array, by described second specific image Subtract each other with described 3rd specific image, obtain the image module of multiple n × n array;

The coordinate simultaneously calculating remaining image module to surrounding from the centre coordinate of described single image module obtains Displaing coordinate point set to actual coordinate point set and with program setting sets up mapping relations.

Preferably, described image module is square-shaped image.

Preferably, calculate remaining described image to surrounding from the centre coordinate of described single image module simultaneously The coordinate of module specifically includes: the distance between the image module of multiple n × n array is preset, base In obtaining centre coordinate, by the coordinate of the i.e. available image module around of computing.

Preferably, described 3rd specific image includes 5 × 5 square-shaped image modules.

Preferably, described launch the first specific image on the projection screen and adjust described by scialyscope The definition of one specific image specifically includes following steps: launch the second specific image on the projection screen, Present image is preserved by image capture module;

Launch the 5th specific image on the projection screen, preserve present image by image capture module, will Described second specific image subtracts each other with described 5th specific image, obtains the first specific image;

Control signal is obtained, to regulate rotation direction and the step-length of motor by analyzing the first specific image.

Preferably, according to the following method described control signal of acquisition:

Analyze the definition of described 3rd specific image, by the definition obtained and the clarity threshold preset Compare and be converted into described control signal.

Preferably, described first specific image is completely black image.

The present invention also proposes a kind of scialyscope, described scialyscope include projection module, image capture module and Image processing module, this projection module, image capture module and image processing module application are as above Atomatic focusing method with interactive function;Wherein,

Described projection module, for exporting specific image on projection screen;

Described image capture module, is used for catching and preserve on presently described projection screen specific image and passes Transport to described image processing module;

Described image processing module, is used for controlling described projection module output specific image, and controls described Image capture module catches on described projection screen specific image and processes, to carry out focusing and photoelectricity Write alternately.

Preferably, described image processing module is focused with step-length by controlling turning to of motor.

Technical solution of the present invention is by launching the first specific image and being adjusted by scialyscope described first specific The image definition of image, then launch the second specific image and the 3rd specific image successively, then by two width figures As carrying out subtracting each other the image module obtaining multiple n × n array;The coordinate calculating multiple image module obtains reality Border coordinate point set also sets up mapping relations with the displaing coordinate point set of setting in program, such that it is able in projection Special photoelectric pen is used to write on screen, it is achieved that scialyscope auto-focusing positions.The technology of the present invention Scheme saves step of manually focusing, it is achieved scialyscope automatic focusing function, decreases focusing required time, Improve Consumer's Experience.

Accompanying drawing explanation

In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to reality Execute the required accompanying drawing used in example or description of the prior art to be briefly described, it should be apparent that below, Accompanying drawing in description is only some embodiments of the present invention, for those of ordinary skill in the art, On the premise of not paying creative work, it is also possible to obtain other according to the structure shown in these accompanying drawings Accompanying drawing.

Fig. 1 is the present invention schematic flow sheet with Atomatic focusing method one embodiment of interactive function;

Fig. 2 is the present invention flow process signal with the Atomatic focusing method further embodiment of interactive function Figure;

Fig. 3 is the second specific image one embodiment in the present invention Atomatic focusing method with interactive function Schematic diagram;

Fig. 4 is the schematic diagram of the 3rd specific image one embodiment in scialyscope Atomatic focusing method of the present invention;

Fig. 5 is the 4th specific image one embodiment in the present invention Atomatic focusing method with interactive function Schematic diagram;

Fig. 6 is the 5th specific image one embodiment in the present invention Atomatic focusing method with interactive function Schematic diagram.

Drawing reference numeral explanation

10 Image module 200 3rd specific image 20 Single image module 300 4th specific image 100 Second specific image 400 5th specific image

The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, do referring to the drawings further Explanation.

Detailed description of the invention

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the present invention, Rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not having Make the every other embodiment obtained under creative work premise, broadly fall into the scope of protection of the invention.

It is to be appreciated that be only used for describing mesh as related to the description of " first ", " second " etc. in the present invention , and it is not intended that instruction or imply its relative importance or implicit indicate indicated technical characteristic Quantity.Thus, define " first ", the feature of " second " can express or implicitly include to Few this feature.It addition, the technical scheme between each embodiment can be combined with each other, but necessary It is based on those of ordinary skill in the art are capable of, when the combination of technical scheme occurs conflicting People should think that the combination of this technical scheme does not exists, the most not at application claims when maybe cannot realize Within protection domain.

The present invention proposes a kind of Atomatic focusing method with interactive function.

With reference to Fig. 1 and Fig. 3, in an embodiment of the present invention, should be with the Atomatic focusing method of interactive function Comprise the following steps:

S1, launch the first specific image (not shown) and adjusted by scialyscope on the projection screen The definition of described first specific image;

S2, launch the second specific image 100 on the projection screen, preserve current figure by image capture module Picture;Then launch the 3rd specific image 200, wherein said 3rd specific image 200 include multiple n × The image module 10 of n array, n is positive integer and n >=2, preserves present image by image capture module; Described second specific image 100 is subtracted each other with described 3rd specific image 200, obtains multiple n × n array Image module 10;

S3, calculate the coordinate of multiple image module 10 obtain actual coordinate point set and with program in set aobvious Show that coordinate point set sets up mapping relations.

It should be noted that by actual coordinate point set is set up with the displaing coordinate point set of setting in program Mapping relations so that when user writes on the projection screen with photoelectric pen, it is achieved show accurately.

In the present embodiment, the second specific image 100 is all black picture.

Technical solution of the present invention is by launching the first specific image and regulating image definition;Launch the most successively Second specific image and the 3rd specific image, then by the second specific image 100 and the 3rd specific image 200 Carry out subtracting each other the image module 10 obtaining multiple n × n array;The coordinate calculating multiple image module 10 obtains Mapping relations are set up to actual coordinate point set and with the displaing coordinate point set of setting in program, such that it is able to Special photoelectric pen is used to write on projection screen, it is achieved that scialyscope auto-focusing positions.The present invention Technical scheme improves the definition of focusing, decreases the time of being automatically positioned, and improves Consumer's Experience.

Incorporated by reference to reference to Fig. 2 and Fig. 4, in further embodiment of the present invention, described with interactive function Atomatic focusing method comprise the following steps:

S10, launch the first specific image and adjust described first specific pattern by scialyscope on the projection screen The definition of picture;

S20, launch the second specific image 100 on the projection screen, preserved by image capture module current Image;Launch the 4th specific image 300 the most again, preserve present image by image capture module;Described 4th specific image 300 includes the single image module near described 4th specific image 300 center 20, described second specific image 100 is subtracted each other with described 4th specific image 300, it is thus achieved that single image Module 20 and the centre coordinate of this single image module 20;

S30, launch the 3rd specific image 200 on the projection screen, preserved by image capture module current Image;Wherein said 3rd specific image 200 includes the image module 10 of multiple n × n array, by institute State the second specific image 100 to subtract each other with described 3rd specific image 200, obtain the figure of multiple n × n array As module 10;

S40, calculate remaining image module to surrounding from the centre coordinate of described single image module 20 simultaneously The coordinate of 10 obtains actual coordinate point set and the displaing coordinate point set with program setting sets up mapping relations.

It should be noted that by by described second specific image 100 and described 4th specific image 300 Subtract each other, it is thus achieved that single image module 20 and the centre coordinate of this single image module 20, then from center Position calculates the coordinate of each image module 10 simultaneously to surrounding, decreases the time being automatically positioned.

In the present embodiment, described image module 10 is square-shaped image.This image module 10 is all right It it is the regular figure such as rectangle, circle.

Scialyscope catches the 4th specific image also by image capture module, to judge that this scialyscope is furred ceiling Install or just throwing installation, thus adjust the projection output of scialyscope, improve mutual precision.

Specifically, calculate remaining described figure to surrounding from the centre coordinate of described single image module 20 simultaneously As the coordinate of module 10 specifically includes: the distance between the image module 10 of multiple n × n array is default Alright, based on acquired centre coordinate, by the coordinate of the i.e. available image module 10 around of computing.

It should be noted that set the centre coordinate distance as (0,0), between each image module 10 For d, then the coordinate of the image module 10 on the left of single image module 20 is (-d, 0), near single The coordinate of the image module 10 on the upside of individual image module 20 be (0, d), the like, more simultaneously outwards Enclose the position coordinates calculating remaining image module 10.

It is automatically positioned the time and accuracy rate that raising is automatically positioned for reducing, chooses suitable image module 10 Quantity, in the present embodiment, described 4th specific image 300 includes 5 × 5 square-shaped image modules 10.I.e. the 4th specific image 300 contains 25 foursquare image modules 10 altogether.

With reference to Fig. 5, specifically, described launch the first specific image on the projection screen and adjusted by scialyscope The definition of whole described first specific image specifically includes following steps: launch second on the projection screen special Determine image 100, preserve present image by image capture module;

Launch the 5th specific image 400 on the projection screen, preserve present image by image capture module, Described second specific image 100 is subtracted each other with described 5th specific image 400, obtains the first specific image;

Control signal is obtained, to regulate rotation direction and the step-length of motor by analyzing the first specific image.

It should be noted that for the image of same content, the edge Relative Fuzzy image tool of picture rich in detail There is the feature of bigger rate of gray level.The most in the present embodiment, by analyzing the 3rd specific image 200 The rate of gray level at edge obtains definition values, this definition values is carried out with the clarity threshold preset Relatively, if the definition values obtained is less than the clarity threshold preset, then by by definition values with preset Difference between clarity threshold changes into the control signal of motor, to control turning to and step-length of motor. Thus regulate projector in the definition of projection screen epigraph.

Specifically, according to the following method described control signal of acquisition:

Analyze the definition of described 3rd specific image 200, by the definition obtained and the definition preset Threshold value compares and is converted into described control signal.

The operating system such as Android, Windows should can be applied to the Atomatic focusing method of interactive function Upper realization.

Technical solution of the present invention is by by described second specific image 100 and described 4th specific image 300 phase Subtract, it is thus achieved that single image module 20 and the centre coordinate of this single image module 20, by specific by second Image 100 and the 3rd specific image 200 subtract each other the image module 10 obtaining multiple n × n array, are then based on Centre coordinate calculates the coordinate of remaining image module 10 simultaneously to surrounding, decreases the time being automatically positioned, Improve the accuracy rate being automatically positioned.Technical solution of the present invention uses the mutual location technology of photoelectricity, can be to throwing Click in territory, shadow zone or write.And focusing uses in same hardware module real with mutual writing function Existing, reduce and realize cost, reduce manufacturing technique requirent, improve Consumer's Experience.

The present invention also proposes a kind of scialyscope, described scialyscope include projection module, image capture module and Image processing module, this projection module, image capture module and image processing module application are as above Atomatic focusing method with interactive function;Wherein,

Described projection module, for exporting specific image to projection screen;

Described image capture module, for catching and preserve the specific image on Current projection screen and transmitting To described image processing module;

Described image processing module, is used for controlling described projection module output specific image, and controls described Image capture module catches on described projection screen specific image and processes, to carry out focusing and photoelectricity Write alternately.

It should be noted that in described projection module with focusing handle and for focusing motor, motor with By gear mesh between focusing handle, described image processing module comes with step-length by controlling turning to of motor Focusing.

In the present embodiment, described image capture module uses infrared camera to realize.

Described image processing module is preinstalled with and above-mentioned is capable of the above-mentioned auto-focusing with interactive function The program of method, realizes, it is achieved thereby that a kind of, the scialyscope that photoelectricity is mutual.

The foregoing is only the preferred embodiments of the present invention, not thereby limit the scope of the claims of the present invention, Every under the inventive concept of the present invention, utilize the equivalent structure that description of the invention and accompanying drawing content are made Conversion, or directly/be indirectly used in other relevant technical fields and be included in the patent protection model of the present invention In enclosing.

Claims (10)

1. the Atomatic focusing method with interactive function, it is characterised in that should be with interactive function Atomatic focusing method comprises the following steps:
Launch the first specific image on the projection screen and adjust described first specific image by scialyscope Definition;
Launch the second specific image on the projection screen, preserve present image by image capture module; Then launching the 3rd specific image, wherein said 3rd specific image includes the image of multiple n × n array Module, n is positive integer and n >=2, preserves present image by image capture module;Special by described second Determine image to subtract each other with described 3rd specific image, obtain the image module of multiple n × n array;
Calculate the coordinate of multiple image module obtain actual coordinate point set and with the displaing coordinate that sets in program Point set sets up mapping relations.
2. as claimed in claim 1 with the Atomatic focusing method of interactive function, it is characterised in that institute State the Atomatic focusing method with interactive function and specifically include following steps:
Launch the first specific image on the projection screen and adjust described first specific image by scialyscope Definition;
Launch the second specific image on the projection screen, preserve present image by image capture module;So After launch the 4th specific image again, preserve present image by image capture module;Described 4th specific pattern As including the single image module near described 4th specific image center, by described second specific pattern As subtracting each other with described 4th specific image, it is thus achieved that the center of single image module and this single image module is sat Mark;
Launch the 3rd specific image on the projection screen, preserve present image by image capture module;Its Described in the 3rd specific image include the image module of multiple n × n array, by described second specific image Subtract each other with described 3rd specific image, obtain the image module of multiple n × n array;
The coordinate simultaneously calculating remaining image module to surrounding from the centre coordinate of described single image module obtains Displaing coordinate point set to actual coordinate point set and with program setting sets up mapping relations.
3. as claimed in claim 2 with the Atomatic focusing method of interactive function, it is characterised in that institute Stating image module is square-shaped image.
4. as claimed in claim 3 with the Atomatic focusing method of interactive function, it is characterised in that from The coordinate that the centre coordinate of described single image module calculates remaining described image module to surrounding simultaneously is concrete Including: the distance between the image module of multiple n × n array is preset, sits based on obtaining center Mark, by the coordinate of the i.e. available image module around of computing.
5. as claimed in claim 4 with the Atomatic focusing method of interactive function, it is characterised in that institute State the 3rd specific image and include 5 × 5 square-shaped image modules.
6. as claimed in claim 7 with the Atomatic focusing method of interactive function, it is characterised in that described Launch the first specific image on the projection screen and adjust the clear of described first specific image by scialyscope Degree specifically includes following steps: launches the second specific image on the projection screen, passes through image capture module Preserve present image;
Launch the 5th specific image on the projection screen, preserve present image by image capture module, will Described second specific image subtracts each other with described 5th specific image, obtains the first specific image;
Control signal is obtained, to regulate rotation direction and the step-length of motor by analyzing the first specific image.
7. as claimed in claim 1 with the Atomatic focusing method of interactive function, it is characterised in that root According to the following method described control signal of acquisition:
Analyze the definition of described 3rd specific image, by the definition obtained and the clarity threshold preset Compare and be converted into described control signal.
8. as claimed in claim 2 with the Atomatic focusing method of interactive function, it is characterised in that institute Stating the first specific image is completely black image.
9. a scialyscope, it is characterised in that described scialyscope includes projection module, image capture module And image processing module, this projection module, image capture module and image processing module application such as right are wanted Seek the Atomatic focusing method with interactive function described in 1-8 any one;Wherein,
Described projection module, for exporting specific image to projection screen;
Described image capture module, is used for catching and preserve on presently described projection screen specific image and passes Transport to described image processing module;
Described image processing module, is used for controlling described projection module output specific image, and controls described Image capture module catches on described projection screen specific image and processes, to carry out focusing and photoelectricity Write alternately.
10. scialyscope as claimed in claim 9, it is characterised in that described image processing module passes through Control turning to of motor to focus with step-length.
CN201610244929.8A 2016-04-19 2016-04-19 AF method with interactive function and projector CN105933684A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102375316A (en) * 2010-08-27 2012-03-14 鸿富锦精密工业(深圳)有限公司 Projector and automatic focusing method thereof
CN202795306U (en) * 2012-08-30 2013-03-13 深圳市印天印象科技有限公司 Optoelectronic writing system
CN103955317A (en) * 2014-04-29 2014-07-30 锐达互动科技股份有限公司 Automatic positioning method for photoelectricity interaction projective module group
US20150042964A1 (en) * 2012-03-07 2015-02-12 Seiko Epson Corporation Projector and control method for the projector
CN105301884A (en) * 2015-11-13 2016-02-03 神画科技(深圳)有限公司 Method and system for automatic focusing on multi-point reference image recognition

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102375316A (en) * 2010-08-27 2012-03-14 鸿富锦精密工业(深圳)有限公司 Projector and automatic focusing method thereof
US20150042964A1 (en) * 2012-03-07 2015-02-12 Seiko Epson Corporation Projector and control method for the projector
CN202795306U (en) * 2012-08-30 2013-03-13 深圳市印天印象科技有限公司 Optoelectronic writing system
CN103955317A (en) * 2014-04-29 2014-07-30 锐达互动科技股份有限公司 Automatic positioning method for photoelectricity interaction projective module group
CN105301884A (en) * 2015-11-13 2016-02-03 神画科技(深圳)有限公司 Method and system for automatic focusing on multi-point reference image recognition

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Application publication date: 20160907