CN108769636B - Projection method and device and electronic equipment - Google Patents
Projection method and device and electronic equipment Download PDFInfo
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- CN108769636B CN108769636B CN201810286709.0A CN201810286709A CN108769636B CN 108769636 B CN108769636 B CN 108769636B CN 201810286709 A CN201810286709 A CN 201810286709A CN 108769636 B CN108769636 B CN 108769636B
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- 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
- H04N9/3185—Geometric adjustment, e.g. keystone or convergence
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- 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]
- H04N9/3191—Testing thereof
- H04N9/3194—Testing thereof including sensor feedback
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Abstract
The invention relates to a projection method and device and electronic equipment. The projection method comprises the following steps: determining the position of a distortion region in the projected image; and adjusting the image projected into the distortion area according to a set strategy based on the position of the distortion area, so that the image in the distortion area is consistent with other positions in the projected image. The embodiment can enable the projection image in the projection area to be free of distortion without replacing the projection surface, and ensures the watching experience of a user.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a projection method and apparatus, and an electronic device.
Background
In order to meet the requirements of some users, projection functions have been added to some electronic devices such as smart phones, so that the users can conveniently project images or videos to be displayed to surrounding wall surfaces. In some scenes, the wall around the position of the user has the situations of uneven brightness and uneven surface, so that the projected image presented to the user has local distortion, and the watching experience of the user is reduced.
Disclosure of Invention
The invention provides a projection method and device and electronic equipment, and aims to solve the problem that a projected image has local distortion to influence the watching of a user in the related art.
According to a first aspect of embodiments of the present invention, there is provided a projection method, the method including:
determining the position of a distortion region in the projected image;
adjusting the image projected into the distorted region according to a set policy based on the location of the distorted region.
Optionally, determining the location of the distorted region in the projection image comprises:
acquiring a trigger signal; the trigger signal is generated based on the movement operation of a user;
adjusting the position of an editing window based on the trigger signal;
and after the user operation is finished, determining the position of the editing window as the position of a distortion area.
Optionally, adjusting the image in the distorted region according to a set policy includes:
acquiring an adjusting signal; the adjusting signal is generated based on the adjusting operation of the user;
and adjusting the distortion parameter of the image in the distortion area based on the adjusting operation.
Optionally, determining the location of the distorted region in the projection image comprises:
acquiring a projection image of the projection area;
and determining the position of the distortion area from the projection image by using a preset image recognition algorithm.
Optionally, adjusting the image in the distorted region according to a set policy includes:
determining the distortion type of the image in the distortion area according to the image to be displayed and the image in the distortion area;
and adjusting the distortion parameters of the image in the distortion area according to the distortion type based on the corresponding relation between the distortion type and the distortion parameters.
According to a second aspect of embodiments of the present invention, there is provided a projection apparatus, the apparatus comprising:
the distortion position determining module is used for determining the position of a distortion area in the projected image;
and the distorted image adjusting module is used for adjusting the image projected into the distorted area according to a set strategy based on the position of the distorted area.
Optionally, the distortion location determination module comprises:
the trigger signal monitoring unit is used for acquiring a trigger signal; the trigger signal is generated based on the movement operation of a user;
the editing window adjusting unit is used for adjusting the position of the editing window based on the trigger signal;
and the distortion position determining unit is used for determining the position of the editing window as the position of the distortion area after the user operation is finished.
Optionally, the distorted image adjusting module includes:
an adjustment signal acquisition unit for acquiring an adjustment signal; the adjusting signal is generated based on the adjusting operation of the user;
a distortion parameter adjusting unit for adjusting a distortion parameter of the image in the distortion area based on the adjusting operation.
Optionally, the distortion location determination module comprises:
a projection image acquisition unit for acquiring a projection image of the projection area;
and the distortion position determining unit is used for determining the position of a distortion area from the projection image by using a preset image recognition algorithm.
Optionally, the distorted image adjusting module comprises:
the distortion type determining unit is used for determining the distortion type of the image in the distortion area according to the image to be displayed and the image in the distortion area;
and the distortion parameter adjusting unit is used for adjusting the distortion parameters of the image in the distortion area according to the distortion type based on the corresponding relation between the distortion type and the distortion parameters.
According to a third aspect of embodiments of the present invention, there is provided an electronic apparatus, including:
a processor;
a memory for storing the processor-executable instructions;
the projection module is used for projecting an image to be displayed to a projection area;
wherein the processor is configured to execute executable instructions in the memory to implement the steps of the method of the first aspect.
Optionally, the electronic device further includes a gravity sensor, and the projection module at least includes a gravity balance device and a rotary projection lens; the gravity sensor is used for acquiring a rotation vector of the electronic equipment; the gravity balance device is used for adjusting a projection angle between the rotary projection lens and the projection area according to the rotation vector.
Optionally, the electronic device further comprises: a manual adjustment module; the manual adjusting module is connected with the processor and used for monitoring the movement operation of a user to generate a trigger signal and sending the trigger signal to the processor;
or the processor is also used for monitoring the adjustment operation of the user to generate an adjustment signal and sending the adjustment signal to the processor.
Optionally, the electronic device further comprises: an image acquisition module; the image acquisition module is connected with the processor and used for acquiring the projection image of the projection area and sending the projection image to the processor.
According to the embodiment, the position of the distortion area in the projection image is determined, and then the projection image in the distortion area is adjusted according to the set strategy, so that the projection image in the projection area is free from distortion, and the watching experience of a user is ensured.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a schematic flow chart diagram illustrating a projection method according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart diagram illustrating another projection method according to an embodiment of the present invention;
FIGS. 3-6 are schematic diagrams illustrating an application scenario according to an embodiment of the present invention;
FIG. 7 is a schematic flow chart diagram illustrating yet another projection method according to an embodiment of the present invention;
FIGS. 8-12 are block diagrams of a projection device according to an embodiment of the present invention;
FIG. 13 is a block diagram illustrating an electronic device in accordance with an embodiment of the present invention;
FIG. 14 is a block diagram of a projection module according to an embodiment of the invention;
FIG. 15 is a schematic diagram illustrating a mounting position of a rocker according to an embodiment of the invention.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. The following description refers to the accompanying drawings in which the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
When the electronic equipment is used for projecting an image or a video to be displayed to the surrounding wall surface, the wall surface has the conditions of uneven brightness and uneven surface, so that the projected image presented to a user has local distortion, and the watching experience of the user is reduced.
In order to solve the above technical problem, an embodiment of the present invention provides a projection method, and fig. 1 is a schematic flow chart of the projection method according to the embodiment of the present invention. For convenience of illustration, in the following embodiments, the processor in the electronic device is used as an execution subject to execute the projection method. Referring to fig. 1, a projection method includes:
101, the location of the distorted region in the projected image is determined.
In this embodiment, the electronic device projects the image to be displayed onto the projection surface through the projection module, and then presents the image to the user in a manner of projecting the image. The processor then determines the distortion region in the projected image, which may include the following:
the first mode is a manual mode. In this way, the electronic device is provided with a manual adjustment module, which monitors the operation of the user, and for convenience of explanation, the operation of moving the editing window is called a moving operation in the subsequent content, and the operation of adjusting the distortion parameter of the image in the editing window is called an adjustment event. The manual adjusting module can comprise one or more of a rocker, a direction key and a touch key.
It can be understood that the editing window may be displayed during the projection process, or may be displayed in response to a trigger operation of a user.
When a user watches the projected image, if a distortion area exists in the projected image, the user can move and operate the manual adjusting module. And generating a trigger signal by the manual adjusting module according to the corresponding relation between the moving operation and the trigger signal, and sending the trigger signal to the processor. And the processor adjusts the position of the editing window according to the trigger signal. For example, the trigger signal may correspond to an offset position, and in this case, the processor may superimpose the offset position on the basis of the current position of the editing window, and use the sum of vectors of the two positions as the position after the moving operation of the editing window.
If the time for which the editing window is held at the same position exceeds a set threshold or the user "fixes" the position, the processor sets the position of the editing window after the movement operation as the position of the distortion region in the projection image.
The second mode is an automatic mode. Under this mode, can be provided with the image acquisition module on the electronic equipment. The image acquisition module is connected with the processor and used for acquiring a projection image of the projection area and sending the projection image to the processor.
The processor determines the position of the distortion area from the projected image according to a preset image recognition algorithm. The image recognition algorithm can determine the location of the distorted region using the following concepts:
in the first mode, the processor determines a coordinate system (hereinafter referred to as a first coordinate system) according to the projection plane, determines a coordinate system (hereinafter referred to as a second coordinate system) according to the image to be displayed, and maps each pixel point in the projection image to the image to be displayed respectively, so as to obtain the corresponding relation between the first coordinate system and the second coordinate system. Based on the mode, the processor stores the corresponding relation between the first coordinate system and the second coordinate system in advance.
After receiving the projected image, the processor maps the projected image to the image to be displayed according to the corresponding relation between the first coordinate system and the second coordinate system, then compares and analyzes the mapped projected image and the image to be displayed, namely the coordinates of the distorted pixels can be determined (the pixels at the same position cannot be matched and correspond), and finally, the coordinate positions of all the distorted pixels are counted, so that the position of the distorted region can be obtained.
In the second mode, the processor respectively extracts image features (such as edge features, gray value change rate features and the like) in the image to be displayed and the projected image, and then the processor filters out noise features of the image features of the projected image. The noise feature refers to an image feature which is newly added to most of the area in the projected image compared with the image feature of the image to be displayed. Then, the processor compares the image characteristics of the image to be displayed with the image characteristics of the filtered projection image, so that the position of the change of the image characteristics can be determined, and the changed position is used as a distortion area of the projection image.
Of course, the skilled person may select other image recognition algorithms according to the specific scene, and under the condition that the position of the distortion region can be determined, the corresponding scheme also falls within the protection scope of the present application.
102, based on the position of the distortion area, adjusting the image projected into the distortion area according to a set strategy.
In this embodiment, after determining the position of the distortion region, the processor may set a policy to adjust the image projected into the distortion region, so that the image in the distortion region is consistent with other portions of the image to be displayed.
Wherein, setting the policy may include the following modes:
the first mode is a manual mode. In this manner, the manual adjustment module continues to monitor the adjustment operation of the user. The user selects and adjusts distortion parameters (such as shape, size, brightness and the like) of the distortion area through the manual adjustment module, and then the manual adjustment module generates an adjustment signal according to the adjustment operation of the user and sends the adjustment signal to the processor. And the processor adjusts distortion parameters corresponding to the image in the distortion area according to the adjusting signal. For example, the user selects to adjust the brightness of the distorted area through the manual adjustment module, and then fills in the adjusted brightness value. The processor adjusts the brightness value of the image in the distortion area according to the brightness value.
The second mode is an automatic mode. In the method, the processor identifies the distortion type of the distortion area by using the image identification model, and can adjust the distortion parameter of the image in the distortion area according to the distortion type based on the pre-stored corresponding relation between the distortion type and the distortion parameter, so that the adjusted image in the distortion area is consistent with the images in other areas.
It can be understood that, in the present embodiment, the image recognition models for recognizing the distortion type and the distortion position may be the same image recognition model, or may be different image recognition models. Taking different image identification models as an example, after determining that a distortion region exists in a projected image, the processor inputs the image of the distortion region and the image to be displayed into an image identification model for identifying the distortion type, and the image identification model identifies the distortion type of the distortion region. Among them, the distortion type may be a dimensional distortion, a luminance unevenness, or the like. And then the processor determines the distortion parameter needing to be adjusted according to the distortion type and forms the corresponding relation between the distortion type and the distortion parameter.
It can be seen that, in the present embodiment, the position of the distortion region in the projected image is determined manually or automatically, and then the processor adjusts the image projected into the distortion region according to the set strategy, so that the image in the distortion region is consistent with other positions in the projected image. That is, the projection image in the projection area can be enabled to be free of distortion without replacing the projection surface, and the watching experience of a user is guaranteed.
Based on the projection method provided by the embodiment shown in fig. 1, the projection method in different modes is described in detail below with reference to a flowchart and a scene diagram. FIG. 2 is a flow chart illustrating a projection method according to an embodiment of the present invention; fig. 3 is a schematic diagram illustrating an application scenario according to an embodiment of the present invention. Referring to fig. 2 and 3, the top edge of the electronic device 11 is provided with a projection module 111 (indicated by a dotted line, and not visible in the direction shown in fig. 3), and the user pre-adjusts the "projection adjustment mode" to the "manual mode". During projection, a user adjusts the direction of the projection module 111, projects an image to be displayed onto the projection surface 12, and an imaging area of the image to be displayed on the projection surface 12 is the projection area 13. Due to the presence of the projection 121 on the projection surface 12, a distortion region 14 is present in the projection image viewed by the user within the projection region 13.
Referring to fig. 4, when the user touches the display module of the electronic device 11, a direction operation window 15 and an editing window 16 pop up in the display area. The direction operation window 15 includes four moving keys of "up", "down", "left", and "right", see arrows in each direction shown in fig. 4. The initial position of the center position of the editing window 16 is P1. The user operates two move keys of "down" and "right" through the direction operation window 15 to move the center position of the editing window 16 to P2, thereby causing the moved editing window 16 to cover the distortion region 14. It should be noted that, in order to clarify the positional relationship between the editing window 16 and the distortion region 14, the present invention appropriately adjusts the sizes of the distortion region 14 and the editing window 16, so as to facilitate understanding.
The processor can move the position of the editing window according to the set step length according to the trigger signal sent by the moving key, and can also determine the moved position P2 according to the initial position P1 of the editing window 16 and the moving step lengths of the two moving keys of 'downward' and 'rightward'.
The processor counts the time or monitors the trigger signal corresponding to the "confirm" operation of the user after each moving operation is completed, and after the time exceeds 2 seconds (which can be set), the processor confirms that the moving operation of the user is completed, and at this moment, the processor determines that the position of the editing window 16 is the position of the distortion area, namely the position P2.
The processor continues to acquire the display module of the touch-sensitive electronic device 11, as shown in fig. 5, and pops up a pull-down menu in the display area, including the distortion parameter options. The processor then adjusts the image within the distorted region 14 based on the user's adjustment information, such as adjusting the "curvature" parameter, for eventual presentation to the user as the projected image shown in fig. 6.
Therefore, the distortion parameter adjustment is performed on the distortion area by the processor according to the operation of the user in the embodiment, so that the image in the distortion area is consistent with the images in other areas in the projected image, the integrity of the projected image can be guaranteed without replacing the projection surface, and the watching experience of the user is improved. In addition, the interactivity between the user and the electronic device can be improved, and the interestingness of using the projection function is improved.
Fig. 7 is a flowchart illustrating another projection method according to an embodiment of the present invention. Referring to fig. 7, in the present embodiment, an image capturing module (not shown), such as a camera, is disposed in the electronic device 11. After the user selects the "automatic mode" shown in fig. 3, the projection module 111 projects the image to be displayed to the projection area 13. Then, the image acquisition module acquires the projection image of the projection area 13 and sends the projection image to the processor. The processor acquires a projected image from which the location of the distorted region is identified using a pre-set image identification algorithm. Then, the processor compares and analyzes the image to be displayed and the image in the distortion area, and determines the distortion type of the image in the distortion area. And finally, the processor adjusts the distortion parameters of the image in the distortion area according to the distortion type according to the prestored corresponding relation between the distortion type and the distortion parameters.
It is thus clear that gather the projection image through setting up the image acquisition module in this embodiment, then can adjust the distortion region by the treater to projection image processing, need not the user and change and throw the face and can guarantee projection image distortionless region, be favorable to promoting user's the experience of watching.
Fig. 8 is a block diagram illustrating a projection apparatus according to an embodiment of the present invention. Referring to fig. 8, a projection apparatus 800 includes:
a distortion position determination module 801 for determining the position of a distortion region in the projection image;
a distorted image adjusting module 802, configured to adjust the image projected into the distorted region according to a set policy based on the location of the distorted region.
Fig. 9 is a block diagram illustrating another projection apparatus according to an embodiment of the present invention. Referring to fig. 9, on the basis of the projection apparatus shown in fig. 8, the distortion position determination module 801 includes:
a trigger signal monitoring unit 901 configured to acquire a trigger signal; the trigger signal is generated based on the movement operation of a user;
an editing window adjusting unit 902, configured to adjust a position of an editing window based on the trigger signal;
and a distortion position determination unit 903, configured to determine, after the user operation is completed, that the position of the editing window is the position of the distortion area.
Fig. 10 is a block diagram illustrating yet another projection apparatus according to an embodiment of the present invention. Referring to fig. 10, in the projection apparatus shown in fig. 9, the distorted image adjusting module 802 includes:
an adjustment signal acquisition unit 1001 configured to acquire an adjustment signal; the adjusting signal is generated based on the adjusting operation of the user;
a distortion parameter adjusting unit 1002, configured to adjust a distortion parameter of the image in the distorted region based on the adjusting operation.
Fig. 11 is a block diagram illustrating another projection apparatus according to an embodiment of the present invention. Referring to fig. 11, on the basis of the projection apparatus shown in fig. 8, the distortion position determination module 801 includes:
a projection image acquisition unit 1101 for acquiring a projection image of the projection area;
a distortion position determination unit 1102 for determining the position of a distortion region from the projection image by using a preset image recognition algorithm.
Fig. 12 is a block diagram illustrating another projection apparatus according to an embodiment of the present invention. Referring to fig. 12, in the projection apparatus shown in fig. 3, the distorted image adjusting module 802 includes:
a distortion type determining unit 1201, configured to determine a distortion type of the image in the distortion area according to the image to be displayed and the image in the distortion area;
a distortion parameter adjusting unit 1202, configured to adjust a distortion parameter of the image in the distortion region according to a distortion type based on a corresponding relationship between the distortion type and the distortion parameter
It can be understood that the projection apparatus provided in the embodiments of the present invention corresponds to the projection method described above, and specific contents may refer to the contents of each embodiment of the projection method, which are not described herein again.
Fig. 13 is an electronic device shown in accordance with an embodiment of the present invention. Referring to fig. 13, an electronic device 1300 includes:
a processor 1301;
a memory 1302 for storing instructions executable by the processor 1301;
the projection module 1303 is used for projecting the image to be displayed to a projection area;
wherein the processor 1301 is configured to execute the executable instructions in the memory 1302 to implement the steps of the methods described in the above method embodiments.
With continued reference to fig. 13, the electronic device 1300 further includes a gravity sensor 1304. Referring to fig. 14, the projection module 1303 at least includes a gravity balance device 1401 and a rotary projection lens 1402. The rotary projection lens 1402 is mounted in a lens slot 1403. The gravity sensor 1304 is configured to obtain a rotation vector of the electronic device 1300; the gravity balance device 1401 is configured to adjust a projection angle between the rotary projection lens 1402 and the projection area according to the rotation vector. In this embodiment, through setting up gravity sensor and gravity balance device, can make corresponding adjustment at rotatory projection lens of electronic equipment when rotatory to guarantee that the projection image irrotational, be favorable to promoting to watch experience.
With continued reference to fig. 13, the electronic device 1300 further includes: a manual adjustment module 1305; the manual adjustment module 1305 is connected to the processor 1301, and configured to monitor a movement operation of a user to generate a trigger signal, and send the trigger signal to the processor 1301; or, the processor 1301 is further configured to monitor an adjustment operation of the user to generate an adjustment signal, and send the adjustment signal to the processor 1301. Distortion parameter adjustment can be carried out to the distortion region according to the interactive operation of user and electronic equipment in this embodiment to make the image in the distortion region unanimous with the image in other regions in the projected image, need not to change the integrality that the projection image can be guaranteed to the plane of projection, promote user's the experience of watching.
Referring to fig. 15, in an embodiment, the manual adjustment module 1305 includes a rocker disposed on a top or a bottom of a front surface (a display side facing a user) of the electronic device 1300, so that the rocker can generate a trigger signal according to an inclination angle of the user shaking in various directions, and the processor can move the editing window according to the trigger signal.
With continued reference to fig. 13, the electronic device 1300 further includes: an image acquisition module 1306; the image acquisition module 1306 is connected to the processor 1301, and is configured to acquire a projection image of the projection area and send the projection image to the processor 1301. The processor 1301 may identify the distortion region by using an image identification algorithm, determine a distortion type of the image in the distortion region according to the image to be displayed and the image in the distortion region, and then adjust a distortion parameter corresponding to the distortion type according to a correspondence between the distortion type and the distortion parameter, so that the adjusted image in the distortion region is consistent with the surrounding region.
It can be understood that, in the description of the method embodiment, the structure of the electronic device and the functions between the devices have been described in detail, and specific reference may be made to the corresponding contents, which is not repeated herein.
In the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The term "plurality" means two or more unless expressly limited otherwise.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (8)
1. A method of projection, the method comprising:
determining the position of a distortion region in the projected image;
adjusting the image projected into the distorted area according to a set strategy based on the position of the distorted area;
wherein determining the location of the distorted region in the projected image comprises: acquiring a projection image of a projection area and determining the position of a distortion area from the projection image by using a preset image recognition algorithm, wherein the method specifically comprises the following steps:
respectively extracting image features in an image to be displayed and a projected image; the image features are gray value change rate features;
filtering out noise features of image features of the projected image; the noise characteristics refer to image characteristics which are newly added in most areas in a projected image compared with the image characteristics of the image to be displayed;
comparing the image characteristics of the image to be displayed with the image characteristics of the filtered projected image, determining the position where the image characteristics change, and taking the changed position as a distortion area of the projected image; the distortion area is an area where the local distortion of the projected image is caused by the uneven brightness or the uneven surface of the projection surface.
2. The projection method of claim 1, wherein adjusting the image in the distorted region according to a set policy comprises:
determining the distortion type of the image in the distortion area according to the image to be displayed and the image in the distortion area;
and adjusting the distortion parameters of the image in the distortion area according to the distortion type based on the corresponding relation between the distortion type and the distortion parameters.
3. A projection device, the device comprising:
a distortion location determination module for determining a location of a distortion region in the projected image, the distortion location determination module comprising: a projection image acquisition unit for acquiring a projection image of the projection area; a distortion position determination unit for determining the position of a distortion area from the projection image by using a preset image recognition algorithm; the distortion position determining unit is specifically used for respectively extracting image features in an image to be displayed and a projected image, and the image features are gray value change rate features; filtering out noise features of image features of the projected image; the noise characteristics refer to image characteristics which are newly added in most areas in a projected image compared with the image characteristics of the image to be displayed; comparing the image characteristics of the image to be displayed with the image characteristics of the filtered projected image, determining the position where the image characteristics change, and taking the changed position as a distortion area of the projected image;
the distorted image adjusting module is used for adjusting the image projected into the distorted area according to a set strategy based on the position of the distorted area; the distortion area is an area where the local distortion of the projected image is caused by the uneven brightness or the uneven surface of the projection surface.
4. The projection device of claim 3, wherein the distorted image adjustment module comprises:
the distortion type determining unit is used for determining the distortion type of the image in the distortion area according to the image to be displayed and the image in the distortion area;
and the distortion parameter adjusting unit is used for adjusting the distortion parameter of the image in the distortion area according to the distortion type based on the corresponding relation between the distortion type and the distortion parameter.
5. An electronic device, characterized in that the electronic device comprises:
a processor;
a memory for storing the processor-executable instructions;
the projection module is used for projecting an image to be displayed to a projection area;
wherein the processor is configured to execute executable instructions in the memory to implement the steps of the method of claim 1 or 2.
6. The electronic device of claim 5, further comprising: the projection module at least comprises a gravity balance device and a rotary projection lens; the gravity sensor is used for acquiring a rotation vector of the electronic equipment; the gravity balance device is used for adjusting a projection angle between the rotary projection lens and the projection area according to the rotation vector.
7. The electronic device of claim 5, further comprising: a manual adjustment module; the manual adjusting module is connected with the processor and used for monitoring the movement operation of a user to generate a trigger signal and sending the trigger signal to the processor;
or the processor is also used for monitoring the adjustment operation of the user to generate an adjustment signal and sending the adjustment signal to the processor.
8. The electronic device of claim 5, further comprising: an image acquisition module; the image acquisition module is connected with the processor and used for acquiring the projection image of the projection area and sending the projection image to the processor.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810286709.0A CN108769636B (en) | 2018-03-30 | 2018-03-30 | Projection method and device and electronic equipment |
| PCT/CN2019/079224 WO2019184811A1 (en) | 2018-03-30 | 2019-03-22 | Projection method and apparatus, and electronic device |
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| CN201810286709.0A CN108769636B (en) | 2018-03-30 | 2018-03-30 | Projection method and device and electronic equipment |
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| CN108769636B true CN108769636B (en) | 2022-07-01 |
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| CN108769636B (en) * | 2018-03-30 | 2022-07-01 | 京东方科技集团股份有限公司 | Projection method and device and electronic equipment |
| CN110809141A (en) * | 2019-09-29 | 2020-02-18 | 深圳市火乐科技发展有限公司 | Trapezoidal correction method and device, projector and storage medium |
| CN113310438B (en) * | 2020-02-26 | 2023-04-07 | 广东博智林机器人有限公司 | Flatness measuring method, flatness measuring device, computer equipment and storage medium |
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| CN108769636A (en) | 2018-11-06 |
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