WO2016082587A1 - Procédé et appareil d'ajustement de luminosité de projection - Google Patents

Procédé et appareil d'ajustement de luminosité de projection Download PDF

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Publication number
WO2016082587A1
WO2016082587A1 PCT/CN2015/086653 CN2015086653W WO2016082587A1 WO 2016082587 A1 WO2016082587 A1 WO 2016082587A1 CN 2015086653 W CN2015086653 W CN 2015086653W WO 2016082587 A1 WO2016082587 A1 WO 2016082587A1
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WO
WIPO (PCT)
Prior art keywords
brightness
motion parameter
projection brightness
terminal
projection
Prior art date
Application number
PCT/CN2015/086653
Other languages
English (en)
Chinese (zh)
Inventor
杨新力
曾慧鹏
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2016082587A1 publication Critical patent/WO2016082587A1/fr

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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B15/00—Special procedures for taking photographs; Apparatus therefor
    • G03B15/02—Illuminating scene
    • G03B15/03—Combinations of cameras with lighting apparatus; Flash units
    • G03B15/05—Combinations of cameras with electronic flash apparatus; Electronic flash units
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/22—Illumination; Arrangements for improving the visibility of characters on dials
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/725—Cordless telephones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/74—Projection arrangements for image reproduction, e.g. using eidophor

Definitions

  • This application relates to, but is not limited to, the field of terminal technology.
  • mobile phone projectors are a very practical software function. Due to its mobile and portability features, many mini-conference projectors are used in many modern conferences. However, the projector phone often adjusts and moves constantly during use, and the projected content continuously moves back and forth during the movement, especially in a dark environment, the human eye will unconsciously track the projected light, which is prone to fatigue and glare, and even generate dizziness.
  • the present invention provides a method and a device for adjusting the brightness of a projection, which can solve the technical problem of fatigue and glare of the user due to continuous movement of the projector mobile phone during the projection process.
  • a projection brightness adjustment method includes the following steps:
  • the step of adjusting the projection brightness of the terminal according to the first motion parameter comprises:
  • the first motion parameter comprises velocity or acceleration.
  • the step of acquiring the corresponding target projection brightness according to the first motion parameter comprises:
  • the step of acquiring the corresponding target projection brightness according to the second motion parameter comprises:
  • Corresponding target projection brightness is matched from the preset second motion parameter and the projected brightness corresponding relationship according to the second motion parameter.
  • the method further includes:
  • the first motion parameter comprises an acceleration and the second motion parameter comprises a speed.
  • a projection brightness adjusting device comprises: a detecting module and an adjusting module
  • the detecting module is configured to: when the terminal performs projection, detecting a first motion parameter when the terminal moves;
  • the adjusting module is configured to: adjust a projection brightness of the terminal according to the first motion parameter.
  • the adjustment module is configured to:
  • the adjustment module includes: a parameter acquisition module, a brightness acquisition module, and a brightness adjustment module;
  • the brightness acquisition module is configured to: acquire a corresponding target projection brightness according to the second motion parameter;
  • the brightness adjustment module is configured to: adjust a projection brightness of the terminal according to the target projection brightness.
  • the brightness acquiring module is configured to: match the corresponding target projected brightness from the preset second motion parameter and the projected brightness according to the second motion parameter.
  • the device further includes: a detection time adjustment module, wherein the detection time adjustment module is configured to: adjust, according to the second motion parameter, a time when the detection module detects the first motion parameter next time.
  • a detection time adjustment module configured to: adjust, according to the second motion parameter, a time when the detection module detects the first motion parameter next time.
  • a computer readable storage medium storing computer executable instructions for performing the method of any of the above.
  • the embodiment of the present invention provides a projection brightness adjustment method and apparatus, wherein the projection brightness adjustment method according to the embodiment of the present invention includes: detecting, during a projection process by the terminal, a first motion parameter when the terminal moves; The first motion parameter adjusts the projection brightness of the terminal.
  • the embodiment of the invention can adaptively adjust the projection brightness during the movement of the projection terminal, thereby alleviating the user's eye fatigue and glare, and improving the user experience.
  • FIG. 1 is a schematic flowchart of a method for adjusting a projection brightness according to Embodiment 1 of the present invention
  • FIG. 2 is a schematic flowchart of a method for adjusting a projection brightness according to Embodiment 2 of the present invention
  • Embodiment 3 is a relationship between speed and brightness according to Embodiment 2 of the present invention.
  • FIG. 4 is a schematic structural diagram of a first projection brightness adjusting apparatus according to Embodiment 3 of the present invention.
  • FIG. 5 is a schematic structural diagram of a second projection brightness adjusting apparatus according to Embodiment 3 of the present invention.
  • FIG. 6 is a schematic structural diagram of a third projection brightness adjusting apparatus according to Embodiment 3 of the present invention.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • the present embodiment provides a method for adjusting the projection brightness, as shown in FIG. 1 , including the following steps:
  • Step 101 In the process of performing projection by the terminal, detecting a first motion parameter when the terminal moves.
  • the terminal in this embodiment is a terminal having a projection function, such as a projector mobile phone.
  • the terminal uses the projection function, the terminal is continuously moved or the position of the terminal is adjusted.
  • the method in this embodiment detects the movement of the terminal.
  • the first motion parameter may include: acceleration or speed.
  • the method of the embodiment can detect the acceleration when the terminal moves by using the acceleration sensor of the terminal;
  • the method of the embodiment can detect the speed when the terminal moves by the sensor.
  • Step 102 Adjust a projection brightness of the terminal according to the first motion parameter.
  • the step may include: acquiring a corresponding target projection brightness according to the first motion parameter; and adjusting a projection brightness of the terminal according to the target projection brightness.
  • the corresponding target projection brightness may be acquired according to the speed of the terminal movement.
  • the speed and the projection brightness may be preset in the terminal. After detecting the speed of the terminal movement, The speed value of the terminal movement can be used to match the corresponding projection brightness in the corresponding relationship, the projection brightness is the target projection brightness, and then the projection brightness of the terminal is adjusted to the target projection brightness.
  • the corresponding target projection brightness may also be acquired according to the preset acceleration and the projection brightness correspondence, and then the projection brightness of the terminal is adjusted to the target projection brightness.
  • the projection brightness adjustment method provided by the embodiment can adaptively adjust the projection brightness according to the movement of the terminal, thereby alleviating user eye fatigue and glare caused by moving the projection terminal during the projection process, thereby improving the user experience.
  • the foregoing step 102 may include:
  • the method of the embodiment may obtain the target projection brightness by the corresponding relationship between the preset speed and the projection brightness.
  • the process of obtaining the corresponding target projection brightness according to the second operating parameter may include:
  • Corresponding target projection brightness is matched from the preset second motion parameter and the projected brightness corresponding relationship according to the second motion parameter.
  • the correspondence between the speed and the projected brightness may be pre-stored in the terminal in the form of a table. In this case, it is a correspondence table between the speed and the projected brightness.
  • the speed of the terminal movement may be calculated according to the acceleration, and then, the speed of the terminal movement may be used to correspond to the preset brightness and the projection brightness.
  • the target projection brightness is found in the table.
  • the speed can be calculated by the processing unit of the terminal.
  • the method of the embodiment may further include: after the target projection brightness is obtained, the projection brightness of the terminal is adjusted according to the target projection brightness.
  • the target projection brightness can be compared with the current projection brightness. If the target projection brightness is the same as the current projection brightness, no brightness adjustment is needed. If the target projection brightness is different from the current projected brightness, the projection brightness of the terminal needs to be adjusted.
  • the method of the embodiment may further include: adjusting a time for detecting the first motion parameter next time according to the second motion parameter, in order to save the terminal resource and improve the responsiveness of the system.
  • the detecting device in the terminal can sleep for a period of time to detect the first motion parameter. If the terminal moves at a fast speed, the sleep time of the detecting device is reduced, and the next first motion is quickly detected. Parameters to improve sampling accuracy and ensure second motion parameters The correctness.
  • the second motion parameter when the first motion parameter includes acceleration, the second motion parameter includes: speed.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • the embodiment provides a method for adjusting the brightness of the projection, which may include:
  • Step 201 During the projection of the terminal, the acceleration of the terminal when the terminal is moved is collected by the acceleration sensor.
  • the acceleration built in the X, Y, and Z directions when the terminal moves is obtained by using the built-in acceleration sensor of the terminal.
  • the acceleration sensor acquisition information (acceleration in three directions of X, Y, and Z) is encapsulated into a service class, and then information is transmitted through the Intent and Broadcast Receive mechanisms and the Activity.
  • Step 202 Calculate the speed when the terminal moves according to the detected acceleration.
  • This step is mainly to use the integral knowledge in physics to obtain the mobile phone moving speed by single-integrating the data acquired by the acceleration sensor.
  • the velocity vector vx in the x direction can be obtained, and the velocity in the y and z directions is obtained in the same manner.
  • Vector vy and vz then through sqrt (vx * vx + vy * vy + vz * vz), you can get the speed v of the mobile phone projector movement.
  • Step 203 Find a corresponding target projection brightness in the preset speed and brightness correspondence table according to the speed.
  • the method in this embodiment can store a correspondence table between speed and brightness.
  • the table can be set according to experience. The faster the speed, the lower the brightness, and the corresponding brightness value can be obtained by looking up the table with the hash value of the speed value.
  • Each speed in the table corresponds to a speed range, and the brightness at the 0th speed is the highest brightness, that is, the brightness during normal projection.
  • the relationship between brightness and speed in this embodiment is shown in Fig. 3.
  • Step 204 Determine whether to adjust the projection brightness according to the current projection brightness and the target projection brightness. If yes, execute step 205, and if no, return to step 201.
  • the current brightness value is the same as the value to be adjusted, it will not be adjusted (adjusting the brightness sometimes occasionally flashes a little, even if the brightness does not change. Depending on the drive of the brightness adjustment), otherwise adjust the brightness.
  • Step 206 Adjust the projection brightness of the terminal to the target projection brightness.
  • the brightness adjustment can be implemented by adjusting the brightness module in the terminal, wherein the extended JNI interface can be called (of course, the native interface is also used to interact with the device driver of the operating system).
  • Step 207 Determine the time when the acceleration is collected by the acceleration sensor next time according to the speed at which the terminal moves, and return to step 201.
  • the current speed is very slow, you can sleep for a while and then read the next value, which can save CPU time and improve the system's responsiveness. If the speed is fast, the sleep time is reduced, so that the next acceleration value is quickly obtained, the sampling precision is improved, and the calculation accuracy of the speed is ensured.
  • the method of the embodiment detects the jitter of the mobile phone caused by the external environment by the acceleration sensor, and adaptively adjusts the brightness; and automatically adjusts the brightness of the screen when the projector moves and adjusts, satisfies the user's demand, and also relieves the user's visual fatigue.
  • Embodiment 3 is a diagrammatic representation of Embodiment 3
  • the embodiment provides a projection brightness adjusting apparatus, including: a detecting module 41 and an adjusting module 42:
  • the detecting module 41 is configured to: when the terminal performs projection, detect a first motion parameter when the terminal moves;
  • the adjusting module 42 is configured to: adjust a projection brightness of the terminal according to the first motion parameter.
  • the first motion parameter may include: speed or acceleration.
  • the adjustment module 42 is configured to:
  • the adjustment module 42 includes: a parameter acquisition module 421, a brightness acquisition module 422, and a brightness adjustment module 423;
  • the parameter obtaining module 421 is configured to: obtain a second motion parameter when the terminal moves according to the first motion parameter;
  • the brightness obtaining module 422 is configured to: acquire a corresponding target projection brightness according to the second motion parameter;
  • the brightness adjustment module 423 is configured to adjust a projection brightness of the terminal according to the target projection brightness.
  • the brightness obtaining module 423 is configured to: match the corresponding target projected brightness from the preset second motion parameter and the projected brightness according to the second motion parameter.
  • the first motion parameter may include an acceleration
  • the second motion parameter may include a speed
  • the device of the embodiment may further include: a detecting time adjusting module 43; the detecting time adjusting module 43 is configured to: adjust the device according to the second motion parameter The time when the detection module 41 next detects the first motion parameter.
  • the projection brightness adjusting device provided in this embodiment can adaptively adjust the projection brightness according to the movement of the terminal, thereby alleviating user eye fatigue and glare caused by moving the projection terminal during the projection process, thereby improving the user experience.
  • all or part of the steps of the above embodiments may also be implemented by using an integrated circuit. These steps may be separately fabricated into individual integrated circuit modules, or multiple modules or steps may be fabricated into a single integrated circuit module. achieve.
  • the device/function module/functional unit in the above embodiment can be implemented by using a general-purpose computing device. Now, they can be concentrated on a single computing device or distributed over a network of multiple computing devices.
  • the device/function module/functional unit in the above embodiment When the device/function module/functional unit in the above embodiment is implemented in the form of a software function module and sold or used as a stand-alone product, it can be stored in a computer readable storage medium.
  • the above mentioned computer readable storage medium may be a read only memory, a magnetic disk or an optical disk or the like.
  • the embodiment of the invention can adaptively adjust the projection brightness during the movement of the projection terminal, thereby alleviating the user's eye fatigue and glare, and improving the user experience.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Controls And Circuits For Display Device (AREA)
  • Projection Apparatus (AREA)

Abstract

L'invention concerne un procédé et un appareil d'ajustement de luminosité de projection. Le procédé de réglage de luminosité de projection consiste à : dans un procédé dans lequel un terminal exécute une projection, détecter un premier paramètre de mouvement qui se produit lorsque le terminal se déplace ; et ajuster une luminosité de projection du terminal d'après le premier paramètre de mouvement.
PCT/CN2015/086653 2014-11-26 2015-08-11 Procédé et appareil d'ajustement de luminosité de projection WO2016082587A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201410695651.7A CN105700277B (zh) 2014-11-26 2014-11-26 一种投影亮度调整方法和装置
CN201410695651.7 2014-11-26

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CN107870666B (zh) 2016-09-28 2020-12-29 腾讯科技（深圳）有限公司 一种终端控制方法及终端
CN107395860A (zh) * 2017-06-21 2017-11-24 联想(北京)有限公司 一种控制方法及电子设备
CN107371003A (zh) * 2017-07-11 2017-11-21 上海青橙实业有限公司 投影终端的控制方法和装置
CN107295320A (zh) * 2017-08-07 2017-10-24 上海青橙实业有限公司 投影终端的控制方法和装置
CN111352289A (zh) * 2020-04-22 2020-06-30 聚好看科技股份有限公司 投影仪及亮度调节方法

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EP2330802A1 (fr) * 2009-12-04 2011-06-08 Lg Electronics Inc. Terminal mobile disposant d'un projecteur d'image et son procédé de contrôle
CN102761663A (zh) * 2012-06-29 2012-10-31 惠州Tcl移动通信有限公司 一种带荧光棒功能的移动终端及其亮度控制方法
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