WO2017206364A1 - 一种osd触发区域偏移校正方法及系统 - Google Patents

一种osd触发区域偏移校正方法及系统 Download PDF

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Publication number
WO2017206364A1
WO2017206364A1 PCT/CN2016/095274 CN2016095274W WO2017206364A1 WO 2017206364 A1 WO2017206364 A1 WO 2017206364A1 CN 2016095274 W CN2016095274 W CN 2016095274W WO 2017206364 A1 WO2017206364 A1 WO 2017206364A1
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Prior art keywords
osd
coordinate
area
parameter
display device
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PCT/CN2016/095274
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English (en)
French (fr)
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覃吉磊
马万乐
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深圳创维－Rgb电子有限公司
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Priority to EP16903746.2A priority Critical patent/EP3444707A4/en
Priority to US16/097,368 priority patent/US11087719B2/en
Publication of WO2017206364A1 publication Critical patent/WO2017206364A1/zh

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/36—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the display of a graphic pattern, e.g. using an all-points-addressable [APA] memory
    • G09G5/38—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the display of a graphic pattern, e.g. using an all-points-addressable [APA] memory with means for controlling the display position
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    • G06—COMPUTING; CALCULATING OR COUNTING
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    • G06F1/16—Constructional details or arrangements
    • G06F1/1601—Constructional details related to the housing of computer displays, e.g. of CRT monitors, of flat displays
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
    • G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
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    • G06F2200/16—Indexing scheme relating to G06F1/16 - G06F1/18
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    • G09G2340/04—Changes in size, position or resolution of an image
    • G09G2340/0492—Change of orientation of the displayed image, e.g. upside-down, mirrored
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
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    • G09G2340/12—Overlay of images, i.e. displayed pixel being the result of switching between the corresponding input pixels

Definitions

  • the present invention relates to the field of digital multimedia display technologies, and in particular, to an OSD trigger region offset correction method and system.
  • On-Screen Display (OSD) in digital multimedia display devices has become one of the main windows for controlling digital multimedia display devices, but with the advancement of computer integrated circuit technology and the rapid development of digital multimedia display technology.
  • Display diversity such as front screen, inverted screen and flip screen has become a trend.
  • the OSD trigger area deviates from the position of the OSD display area, causing the manipulation trigger related OSD target area to deviate from the original required target contact area (OSD display area), and the OSD response error.
  • OSD display area the original required target contact area
  • the problem of scaling the display area of the multimedia display device is solved for this problem, but the problem that the OSD trigger area deviates from the OSD display area when the screen is flipped and flipped is not fundamentally solved, and the display device has distortion and trigger error.
  • the present invention aims to provide an OSD trigger region offset correction method and system, which aims to solve the problem that the OSD trigger region deviates from the OSD display region when the screen is flipped and flipped in the prior art, and the display device is distorted. Triggering the wrong phenomenon defect.
  • An OSD trigger region offset correction method wherein the method includes:
  • the OSD triggering region offset correction method wherein when the intercepting multimedia display device is rotated, acquiring the rotation angle parameter of the multimedia display device specifically includes:
  • the OSD trigger region offset correction method wherein the acquiring the first coordinate parameter of the OSD display region of the multimedia display device according to the rotation angle parameter specifically includes:
  • the OSD trigger region offset correction method wherein the acquiring the second coordinate parameter of the OSD trigger region of the multimedia display device determines whether the OSD display region and the OSD trigger region are coincident according to the first coordinate parameter and the second coordinate parameter, If the coincidence is not repeated, the OSD triggering area is redrawn until the OSD display area and the OSD triggering area are overlapped.
  • the OSD display area and the OSD trigger area do not coincide, and the OSD trigger area is redrawn until the OSD display area and the OSD trigger area are overlapped, and the OSD trigger area offset correction is completed.
  • the OSD trigger region offset correction method wherein the acquiring the second coordinate parameter of the OSD trigger region of the multimedia display device determines whether the OSD display region and the OSD trigger region are coincident according to the first coordinate parameter and the second coordinate parameter, If not coincident, redraw the OSD trigger area until the OSD display area and OSD trigger are detected. After the regions are coincident, the OSD trigger region offset correction completion includes:
  • the multimedia display device When the OSD trigger area is redrawn, if the number of times of drawing is detected to be greater than a predetermined number of times, the multimedia display device prompts that the drawing fails.
  • An OSD trigger region offset correction system wherein the system includes:
  • a listening and angle obtaining module configured to acquire a rotation angle parameter of the multimedia display device when the multimedia display device is detected to rotate
  • An OSD display area coordinate parameter obtaining module configured to acquire a first coordinate parameter of an OSD display area of the multimedia display device according to the rotation angle parameter;
  • the OSD trigger region offset correction module is configured to acquire a second coordinate parameter of the OSD trigger region of the multimedia display device, and determine, according to the first coordinate parameter and the second coordinate parameter, whether the OSD display region and the OSD trigger region are coincident, if not coincident, The OSD trigger area is redrawn until the OSD display area and the OSD trigger area are coincident, and the OSD trigger area offset correction is completed.
  • the OSD triggering area offset correction system wherein the interception and angle acquisition module specifically includes:
  • a data sampling unit configured to sample angle sensor angle offset data of the multimedia display device in a predetermined time period, quantize the angle offset data, and set a rotation flag bit to mark the rotation;
  • the rotation angle parameter acquisition unit is configured to obtain a value of the rotation flag bit by an angle, and calculate an angle rotation parameter of the multimedia display device when the rotation is detected.
  • the OSD trigger area offset correction system where the OSD display area coordinate parameter acquisition module specifically includes:
  • a rotation data acquisition unit configured to acquire a gallery area of the multimedia display device in advance, and obtain a rotation flag position and a rotation angle parameter in the gallery area;
  • a first coordinate parameter obtaining unit configured to acquire a first horizontal axis starting coordinate and a first vertical axis starting coordinate of the OSD display area in the gallery area, and obtain a first horizontal coordinate offset of the OSD display area according to the rotation angle parameter and The second longitudinal coordinate offset.
  • the OSD trigger region offset correction system where the OSD trigger region offset correction module specifically includes:
  • a second coordinate parameter acquiring unit configured to acquire a second horizontal axis starting coordinate and a second vertical axis starting coordinate of the OSD triggering region of the multimedia display device, and obtain a second horizontal coordinate offset and a second vertical direction of the OSD triggering region Coordinate offset
  • a data comparison unit for sequentially comparing the first horizontal axis starting coordinate with the second horizontal axis starting coordinate, the first vertical axis starting coordinate and the second and second vertical axis starting coordinates, and the first lateral coordinate offset And determining whether the second lateral coordinate offset, the second longitudinal coordinate offset, and the second longitudinal coordinate offset are the same;
  • the correction unit is configured to determine that the OSD display area and the OSD trigger area do not coincide and re-render the OSD trigger area until the OSD display area and the OSD trigger area are coincident, and the OSD trigger area offset correction is completed.
  • the OSD trigger region offset correction system wherein the OSD trigger region offset correction module further includes:
  • the detecting and drawing unit is configured to prompt the drawing failure if the number of times of drawing is greater than a predetermined number of times when the OSD triggering area is redrawn.
  • the invention provides an OSD trigger region offset correction method and system, and the invention Through the rotation of the current screen and the coordinate parameters of the OSD display, the OSD trigger area is generated by the algorithm application, so that the manipulation and triggering of the OSD can be accurate and normal, the operation is simple, convenient and practical.
  • FIG. 1 is a flow chart of a preferred embodiment of an OSD trigger region offset correction method according to the present invention
  • FIG. 2 is a schematic diagram of a trigger state of a front screen OSD display in a specific application embodiment of an OSD trigger region offset correction method according to the present invention
  • FIG. 3 is a schematic diagram of a trigger state of a reverse screen OSD display in a specific application embodiment of an OSD trigger region offset correction method according to the present invention
  • FIG. 4 is a schematic diagram of a trigger state of a flip screen OSD display in a specific application embodiment of an OSD trigger region offset correction method according to the present invention
  • FIG. 5 is a functional block diagram of a preferred embodiment of an OSD trigger region offset correction system according to the present invention.
  • the digital multimedia display device physically displays video, OSD, etc. according to the display screen hardware.
  • a 1920x1080 physical area composed of pixels on the screen is used as a base reference area
  • a porch is a pixel base area algorithm. Calculated and limited to a display area of the base reference area, all display parts including video and OSD are displayed in the porch. If the part to be displayed is beyond the scope of the porch area, the excess part will not be displayed.
  • the existing screen drive technology video display technology can make the video and OSD can be rotated in any direction, such as front screen, inverted screen and flip screen, can be displayed in the "front screen" in the porch, but the screen rotation will make the OSD
  • the trigger area deviates from the OSD display area, causing a fatal problem with the OSD triggering a response error.
  • the present invention further provides a flowchart of a preferred embodiment of the OSD trigger region offset correction method, as shown in FIG. 1 , wherein the method includes:
  • Step S100 Obtain a rotation angle parameter of the multimedia display device when detecting that the multimedia display device rotates
  • Step S200 Acquire a first coordinate parameter of an OSD display area of the multimedia display device according to the rotation angle parameter;
  • Step S300 Obtain a second coordinate parameter of the OSD trigger area of the multimedia display device, determine whether the OSD display area and the OSD trigger area are coincident according to the first coordinate parameter and the second coordinate parameter, and if not, re-render the OSD trigger area until the OSD trigger area is re-drawn. After detecting that the OSD display area and the OSD trigger area coincide, the OSD trigger area offset correction is completed.
  • a schematic diagram is displayed on the front screen as a standard, and the other directions are in a rotating state.
  • the specific rotation angle ranges from 0 to 360°.
  • the display screen of the multimedia display device is rotated by 180 degrees, it is recorded as a reverse screen.
  • the display screen of the multimedia display device is 270, it is recorded as a flip screen.
  • Multimedia display An angle sensor is installed in the standby to obtain the angular offset data of the device through the angle sensor.
  • Step S200 acquires a first coordinate parameter of the OSD display area of the multimedia display device according to the rotation angle parameter, where the first coordinate parameter includes a start coordinate before the rotation of the OSD display area and a coordinate offset after the rotation.
  • the second coordinate parameter of the OSD trigger area of the multimedia display device is obtained in step S300, where the second coordinate parameter includes a start coordinate before the rotation of the OSD trigger region and a coordinate offset after the rotation.
  • the OSD trigger area is redrawn by the values of the first coordinate parameter and the second coordinate parameter until the OSD display area and the OSD trigger area coincide.
  • Figure 2 shows the schematic of the OSD display and trigger status of the positive screen (0°/+360°/-360°).
  • Figure 3 is a schematic diagram of the OSD display and trigger state of the inverted screen (+180°/-180°).
  • Figure 4 is a schematic diagram of the OSD display and trigger state of the flip screen (+270°/-90°).
  • 100 is a black dotted line for the pixel base area
  • 200 is a porch (gallery)
  • 300 is an OSD triggerable response area
  • 400 is OSD display area.
  • the OSD triggering area itself is laterally offset by the arithmetic unit from the pixel base area by +h units, and the vertical offset +v unit is used to draw the coordinates of the triggering area, which can be triggered in this coordinate.
  • the sub-item corresponding to the OSD; the OSD display area is an area that is anchored in the "positive screen" in the porch area as the screen rotates, subjectively sensing that the screen does not rotate, Figures 3 and 4 compare Figure 2, when the screen occurs When rotating, the offset of the OSD display area and the trigger area can be clearly seen in FIGS. 3 and 4.
  • the OSD display area is drawn in the porch area and the area where the OSD is actually triggered is offset in the pixel base area. Once the screen is rotated, the OSD is displayed. The position of the reference point showing the area coordinates and the trigger area coordinates is changed, resulting in the two areas not being able to overlap.
  • the OSD trigger area coordinate is changed from the pixel base area to the algorithm of the porch area OSD display area coordinate.
  • the software needs to listen to the rotation angle of the digital multimedia display device, and obtain the coordinate parameter of the OSD display area from the porch area.
  • the coordinates of the OSD trigger area are set by the algorithm to be offset by the OSD display area, and finally the OSD display area and the OSD trigger area are coincident, so that the OSD display area and the OSD trigger area are not deviated due to the rotation of the display device.
  • step S100 specifically includes:
  • Step S101 sampling angle sensor angle offset data of the multimedia display device in a predetermined time period, quantizing the angle offset data, and setting a rotation flag bit to mark the rotation;
  • Step S102 Acquire a value of the rotation flag bit, and calculate an angle rotation parameter of the multimedia display device when the rotation is detected.
  • the intercepting the multimedia screen rotation specifically includes: sampling the angle sensor angle offset data multiple times in a predetermined unit time period, and the angle offset data is quantized, that is, obtaining the specific degree of the current deflection by the angle sensor, in advance
  • the rotation flag is set to mark the rotation.
  • the flag is 1, the current multimedia display device is deflected.
  • the flag is 0, the current multimedia display device is not deflected.
  • the rotation flag is set to 1.
  • the angular rotation parameter of the multimedia display device is calculated by encoding.
  • step S200 specifically includes:
  • Step S201 Obtain a gallery area of the multimedia display device in advance, and obtain a rotation flag position and a rotation angle parameter in the gallery area;
  • Step S202 Obtain a first horizontal axis starting coordinate and a first vertical axis starting coordinate of the OSD display area in the gallery area, and obtain a first horizontal coordinate offset and a second vertical coordinate offset of the OSD display area according to the rotation angle parameter. the amount.
  • the gallery area of the pixel reference area of the multimedia display device is acquired in advance, the rotation flag is acquired, and the rotation angle parameter is acquired.
  • the rotation angle parameter sets the x/y axis starting coordinate position of the OSD canvas, and the first horizontal axis starting coordinate X 0 , the first vertical axis starting coordinate Y 0 , obtaining the first horizontal coordinate offset ⁇ X of the OSD display area and the first longitudinal coordinate offset ⁇ Y, returning the starting coordinate position X 0 , Y 0 , offset The amount ⁇ X, ⁇ Y.
  • step S300 specifically includes:
  • Step S301 acquiring a second horizontal axis starting coordinate and a second vertical axis starting coordinate of the OSD triggering area of the multimedia display device, and acquiring a second horizontal coordinate offset and a second longitudinal coordinate offset of the OSD triggering region;
  • Step S302 sequentially comparing the first horizontal axis starting coordinate with the second horizontal axis starting coordinate, the first vertical axis starting coordinate and the second and second vertical axis starting coordinates, the first horizontal coordinate offset and the second horizontal
  • the coordinate offset, the second longitudinal coordinate offset, and the second longitudinal coordinate offset are determined to be the same;
  • Step S303 If not, it is determined that the OSD display area and the OSD trigger area do not overlap, and the OSD trigger area is redrawn, until the OSD display area and the OSD trigger area are overlapped, and the OSD trigger area offset correction is completed.
  • the OSD displays a first horizontal axis starting coordinate X 0 , a first vertical axis starting coordinate Y 0 , and an offset ⁇ X 0 , ⁇ Y 0 , and obtains an OSD triggering region starting coordinate from the second horizontal axis.
  • step S300 further includes:
  • Step S31 When the OSD trigger area is redrawn, if the number of times of drawing is detected to be greater than a predetermined number of times, the multimedia display device prompts that the drawing fails.
  • the multimedia screen rotation causes the OSD trigger region offset correction software design flow.
  • the system listens to the rotation state of the current screen, and maintains the current trigger coordinates when no rotation occurs, and does not need to re-render; If a change has occurred, the OSD trigger area needs to be drawn according to the angle of rotation and the offset coordinate of the OSD display area to the current porch area, and then the coordinates of the OSD display area and the OSD trigger area are compared and verified.
  • the contrast between the two areas does not coincide, you need to re-draw, when the drawing fails more than 3 times, prompt the screen operation, and return.
  • This scheme can be tested on other digital multimedia devices such as Android smart devices and Linux smart devices.
  • the arbitrary rotation of the screen can make the OSD display area and the OSD trigger area coincide, the software runs stably, and the adjustment of the OSD setting items are accurate and effective.
  • Digital multimedia display technology is developing rapidly, and the speed of hardware development is accelerating. Software needs to adapt to the technical challenges brought by hardware update. From the perspective of software, it can provide a new solution to the single reference solution in the porch area. Digital multimedia The display device rotation causes the OSD trigger region offset correction technique to subtly handle the OSD trigger region deviation problem in essence.
  • the present invention also provides a functional block diagram of a preferred embodiment of the OSD trigger region offset correction system, as shown in FIG. 5, wherein the system includes:
  • the interception and angle acquisition module 100 is configured to acquire a rotation angle parameter of the multimedia display device when the multimedia display device is detected to be rotated, as described in the foregoing method embodiment.
  • the OSD display area coordinate parameter obtaining module 200 is configured to acquire the first coordinate parameter of the OSD display area of the multimedia display device according to the rotation angle parameter; as described in the foregoing method embodiment.
  • the OSD trigger region offset correction module 300 is configured to acquire a second coordinate parameter of the OSD trigger region of the multimedia display device, and determine, according to the first coordinate parameter and the second coordinate parameter, whether the OSD display region and the OSD trigger region are coincident, if not coincident, Then, the OSD trigger area is redrawn until the OSD display area and the OSD trigger area are coincident, and the OSD trigger area offset correction is completed; as described in the above method embodiment.
  • the OSD trigger region offset correction system wherein the interception and angle are obtained
  • the module includes:
  • the data sampling unit is configured to sample the angle sensor angle offset data of the multimedia display device for a predetermined time period, quantize the angle offset data, and set the rotation flag to mark the rotation; as described in the foregoing method embodiment.
  • the rotation angle parameter obtaining unit is configured to obtain the value of the rotation flag bit by the angle, and calculate the angle rotation parameter of the multimedia display device when the rotation is detected; as described in the foregoing method embodiment.
  • the OSD trigger area offset correction system where the OSD display area coordinate parameter acquisition module specifically includes:
  • the rotation data acquisition unit is configured to acquire a gallery area of the multimedia display device in advance, and obtain a rotation flag position and a rotation angle parameter in the gallery area; as described in the foregoing method embodiment.
  • a first coordinate parameter obtaining unit configured to acquire a first horizontal axis starting coordinate and a first vertical axis starting coordinate of the OSD display area in the gallery area, and obtain a first horizontal coordinate offset of the OSD display area according to the rotation angle parameter and The second longitudinal coordinate offset; as described in the method embodiment above.
  • the OSD trigger region offset correction system where the OSD trigger region offset correction module specifically includes:
  • a second coordinate parameter acquiring unit configured to acquire a second horizontal axis starting coordinate and a second vertical axis starting coordinate of the OSD triggering region of the multimedia display device, and obtain a second horizontal coordinate offset and a second vertical direction of the OSD triggering region Coordinate offset; as described in the method embodiment above.
  • a data comparison unit for sequentially comparing the first horizontal axis starting coordinate with the second horizontal axis starting coordinate, the first vertical axis starting coordinate and the second and second vertical axis starting coordinates, and the first lateral coordinate offset Determining whether it is the same as the values of the second lateral coordinate offset, the second longitudinal coordinate offset, and the second longitudinal coordinate offset; as described in the above method embodiment.
  • the correction unit is configured to determine that the OSD display area and the OSD trigger area do not coincide, and re-render the OSD trigger area until the OSD display area and the OSD trigger area are overlapped, and the OSD trigger area offset correction is completed; The method examples are described.
  • the OSD trigger region offset correction system wherein the OSD trigger region offset correction module further includes:
  • the detecting and drawing unit is configured to: when the rendering of the OSD triggering area is repeated, if the number of renderings is greater than a predetermined number of times, the multimedia display device prompts that the drawing fails; as described in the foregoing method embodiment.
  • the present invention provides an OSD trigger region offset correction method and system, including: acquiring a rotation angle parameter of a multimedia display device when detecting a rotation of the multimedia display device; acquiring multimedia according to the rotation angle parameter Displaying a first coordinate parameter of the OSD display area of the device; acquiring a second coordinate parameter of the OSD trigger area of the multimedia display device, determining whether the OSD display area and the OSD trigger area are coincident according to the first coordinate parameter and the second coordinate parameter, if not coincident Then, the OSD trigger area is redrawn until the OSD display area and the OSD trigger area are coincident, and the OSD trigger area offset correction is completed.
  • the invention uses the current screen rotation and the coordinate parameters of the OSD display to draw an OSD trigger area through an algorithm application, so that the OSD is manipulated and triggered. Both can be accurate, normal, easy to operate, convenient and practical.

Abstract

一种OSD触发区域偏移校正方法及系统，方法包括：当侦听到多媒体显示设备发生旋转时，获取多媒体显示设备的旋转角度参数（S100）；根据旋转角度参数获取多媒体显示设备的OSD显示区域（400）的第一坐标参数（S200）；获取多媒体显示设备的OSD触发区域的第二坐标参数，根据第一坐标参数和第二坐标参数判断OSD显示区域（400）与OSD触发区域是否重合，若不重合，则重新绘制OSD触发区域，直到检测到OSD显示区域（400）和OSD触发区域重合后，OSD触发区域偏移校正完成（S300）。通过当前屏幕的旋转和OSD显示的坐标参数，通过算法应用绘制出现OSD触发区域，使得操控、触发OSD都能够准确、正常，操作简单，方便实用。

Description

一种OSD触发区域偏移校正方法及系统 技术领域
本发明涉及数字多媒体显示技术领域，尤其涉及一种OSD触发区域偏移校正方法及系统。
背景技术
数字多媒体显示设备中屏幕菜单式调节方式(On-Screen Display，简称OSD)成为控制数字多媒体显示设备的主要窗口之一，但随着计算机集成电路技术的进步和数字多媒体显示技术飞速发展。正屏、倒屏和翻转屏等显示多样化已经成为一种潮流。
数字多媒体显示设备在正屏、倒屏和翻转屏等屏幕旋转时OSD触发区域偏离OSD显示区域位置，导致操控触发相关OSD目标区域偏离原来的需要的目标触点区域(OSD显示区域)，OSD响应错误。目前针对此问题采用按多媒体显示设备显示区域比例缩放解决，但倒屏和翻转屏时OSD触发区域偏离OSD显示区域的问题没有从根本解决，显示设备存在失真、触发错误的现象。
因此，现有技术还有待于改进和发展。
发明内容
鉴于现有技术的不足，本发明目的在于提供一种OSD触发区域偏移校正方法及系统，旨在解决现有技术中倒屏和翻转屏时OSD触发区域偏离OSD显示区域，显示设备存在失真、触发错误的现象的 缺陷。
本发明的技术方案如下：
一种OSD触发区域偏移校正方法，其中，方法包括：
当侦听到多媒体显示设备发生旋转时，获取多媒体显示设备的旋转角度参数；
根据旋转角度参数获取多媒体显示设备的OSD显示区域的第一坐标参数；
获取多媒体显示设备的OSD触发区域的第二坐标参数，根据第一坐标参数和第二坐标参数判断OSD显示区域与OSD触发区域是否重合，若不重合，则重新绘制OSD触发区域，直到检测到OSD显示区域和OSD触发区域重合后，OSD触发区域偏移校正完成。
所述的OSD触发区域偏移校正方法，其中，所述侦听多媒体显示设备发生旋转时，获取多媒体显示设备的旋转角度参数具体包括：
在一预定时间周期内采样多媒体显示设备的角度传感器角度偏移数据，对角度偏移数据进行量化，并设置旋转标志位对旋转进行标记；
获取旋转标志位的值，检测到发生旋转则计算多媒体显示设备的角度旋转参数。
所述的OSD触发区域偏移校正方法，其中，所述根据旋转角度参数获取多媒体显示设备的OSD显示区域的第一坐标参数具体包括：
预先获取多媒体显示设备的画廊区域，在画廊区域内获取旋转标志位及旋转角度参数；
获取画廊区内OSD显示区域的第一横轴起始坐标和第一纵轴起始坐标，根据旋转角度参数获取OSD显示区域的第一横向坐标偏移量和第二纵向坐标偏移量。
所述的OSD触发区域偏移校正方法，其中，所述获取多媒体显示设备的OSD触发区域的第二坐标参数，根据第一坐标参数和第二坐标参数判断OSD显示区域与OSD触发区域是否重合，若不重合，则重新绘制OSD触发区域，直到检测到OSD显示区域和OSD触发区域重合后，OSD触发区域偏移校正完成具体包括：
获取多媒体显示设备的OSD触发区域第二横轴起始坐标和第二纵轴起始坐标，并获取OSD触发区域的第二横向坐标偏移量和第二纵向坐标偏移量；
依次对比第一横轴起始坐标与第二横轴起始坐标，第一纵轴起始坐标和第与第二纵轴起始坐标，第一横向坐标偏移量与第二横向坐标偏移量，第二纵向坐标偏移量和和第二纵向坐标偏移量的值，判断是否相同；
若不相同，则判定OSD显示区域和OSD触发区域不重合，重新绘制OSD触发区域，直到检测到OSD显示区域和OSD触发区域重合后，OSD触发区域偏移校正完成。
所述的OSD触发区域偏移校正方法，其中，所述获取多媒体显示设备的OSD触发区域的第二坐标参数，根据第一坐标参数和第二坐标参数判断OSD显示区域与OSD触发区域是否重合，若不重合，则重新绘制OSD触发区域，直到检测到OSD显示区域和OSD触发 区域重合后，OSD触发区域偏移校正完成还包括：
当重新绘制OSD触发区域时，若检测到绘制次数大于一预定次数时，多媒体显示设备提示绘制失败。
一种OSD触发区域偏移校正系统，其中，系统包括：
侦听与角度获取模块，用于当侦听到多媒体显示设备发生旋转时，获取多媒体显示设备的旋转角度参数；
OSD显示区域坐标参数获取模块，用于根据旋转角度参数获取多媒体显示设备的OSD显示区域的第一坐标参数；
OSD触发区域偏移校正模块，用于获取多媒体显示设备的OSD触发区域的第二坐标参数，根据第一坐标参数和第二坐标参数判断OSD显示区域与OSD触发区域是否重合，若不重合，则重新绘制OSD触发区域，直到检测到OSD显示区域和OSD触发区域重合后，OSD触发区域偏移校正完成。
所述的OSD触发区域偏移校正系统，其中，所述侦听与角度获取模块具体包括：
数据采样单元，用于在一预定时间周期内采样多媒体显示设备的角度传感器角度偏移数据，对角度偏移数据进行量化，并设置旋转标志位对旋转进行标记；
旋转角度参数获取单元，用于角度获取旋转标志位的值，检测到发生旋转则计算多媒体显示设备的角度旋转参数。
所述的OSD触发区域偏移校正系统，其中，所述OSD显示区域坐标参数获取模块具体包括：
旋转数据获取单元，用于预先获取多媒体显示设备的画廊区域，在画廊区域内获取旋转标志位及旋转角度参数；
第一坐标参数获取单元，用于获取画廊区内OSD显示区域的第一横轴起始坐标和第一纵轴起始坐标，根据旋转角度参数获取OSD显示区域的第一横向坐标偏移量和第二纵向坐标偏移量。
所述的OSD触发区域偏移校正系统，其中，所述OSD触发区域偏移校正模块具体包括：
第二坐标参数获取单元，用于获取多媒体显示设备的OSD触发区域第二横轴起始坐标和第二纵轴起始坐标，并获取OSD触发区域的第二横向坐标偏移量和第二纵向坐标偏移量；
数据比对单元，用于依次对比第一横轴起始坐标与第二横轴起始坐标，第一纵轴起始坐标和第与第二纵轴起始坐标，第一横向坐标偏移量与第二横向坐标偏移量，第二纵向坐标偏移量和和第二纵向坐标偏移量的值，判断是否相同；
校正单元，用于若不相同，则判定OSD显示区域和OSD触发区域不重合，重新绘制OSD触发区域，直到检测到OSD显示区域和OSD触发区域重合后，OSD触发区域偏移校正完成。
所述的OSD触发区域偏移校正系统，其中，所述OSD触发区域偏移校正模块还包括：
检测与绘制单元，用于当重新绘制OSD触发区域时，若检测到绘制次数大于一预定次数时，多媒体显示设备提示绘制失败。
本发明提供了一种OSD触发区域偏移校正方法及系统，本发明 通过当前屏幕的旋转和OSD显示的坐标参数，通过算法应用绘制出现OSD触发区域，使得操控、触发OSD都能够准确、正常，操作简单，方便实用。
附图说明
图1为本发明的一种OSD触发区域偏移校正方法的较佳实施例的流程图；
图2为本发明的一种OSD触发区域偏移校正方法的具体应用实施例的正屏OSD显示触发状态示意图；
图3为本发明的一种OSD触发区域偏移校正方法的具体应用实施例的倒屏OSD显示触发状态示意图；
图4为本发明的一种OSD触发区域偏移校正方法的具体应用实施例的翻转屏OSD显示触发状态示意图；
图5为本发明的一种OSD触发区域偏移校正系统的较佳实施例的功能原理框图。
具体实施方式
为使本发明的目的、技术方案及效果更加清楚、明确，以下对本发明进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
数字多媒体显示设备依据显示屏幕硬件物理显示视频、OSD等，以高清液晶屏幕为例，屏幕上的像素点组成的1920x1080物理区域作为像素(base)基准区域，porch(画廊)是依据像素base区域算法 运算且被限定于像素(base)基准区域的一个显示区域，包括视频和OSD等所有显示部分都会被限定在porch中显示出来，如果需要显示的部分超出了porch区域的范围，超出的部分将不会被显示出来，现有屏幕驱动技术、视频显示技术可以使视频和OSD可以正屏、倒屏和翻转屏等任意方向旋转都能够在porch中“正屏”显示播放，但是屏幕旋转会使OSD触发区域与OSD显示区域偏离，导致OSD触发响应错误的带来致命问题。
本发明还提供了一种OSD触发区域偏移校正方法的较佳实施例的流程图，如图1所示，其中，方法包括：
步骤S100、当侦听到多媒体显示设备发生旋转时，获取多媒体显示设备的旋转角度参数；
步骤S200、根据旋转角度参数获取多媒体显示设备的OSD显示区域的第一坐标参数；
步骤S300、获取多媒体显示设备的OSD触发区域的第二坐标参数，根据第一坐标参数和第二坐标参数判断OSD显示区域与OSD触发区域是否重合，若不重合，则重新绘制OSD触发区域，直到检测到OSD显示区域和OSD触发区域重合后，OSD触发区域偏移校正完成。
具体实施时，所述步骤S100中多媒体显示设备中以正屏为标准显示示意图，其他方向为旋转状态。具体的旋转角度范围为0-360°。其中，将多媒体显示设备的显示屏旋转角度为180°时，记为倒屏。而将多媒体显示设备的显示屏为270时，记为翻转屏。多媒体显示设 备中安装有角度传感器，从而通过角度传感器获取设备的角度偏移数据。
步骤S200根据旋转角度参数获取多媒体显示设备的OSD显示区域的第一坐标参数，其中第一坐标参数包括OSD显示区域旋转前的起始坐标和旋转后的坐标偏移量。
步骤S300中获取多媒体显示设备的OSD触发区域的第二坐标参数，其中第二坐标参数包括OSD触发区域旋转前的起始坐标和旋转后的坐标偏移量。通过第一坐标参数和第二坐标参数的值，重新绘制OSD触发区域，直到OSD显示区域和OSD触发区域重合。
图2所示正屏(0°/+360°/-360°)OSD显示、触发状态示意图。图3为倒屏(+180°/-180°)OSD显示、触发状态示意图。图4为是翻转屏(+270°/-90°)OSD显示、触发状态示意图，图中100为黑色虚线为像素base区域，200为porch(画廊)，300为OSD可触发响应区域，400为OSD显示区域。
由图2，图3，图4可知，OSD触发区域本身由像素base区域通过算法运算横向偏移+h单位，和运算纵向偏移+v单位画出触发区域的坐标，在此坐标中可以触发OSD所对应的子项目；OSD显示区域是是随着屏幕旋转锚定在porch区域中“正屏”某个区域，主观上感觉屏幕并未产生旋转，图3和4对比图2，当屏幕发生旋转时，在图3和图4中可以很明显的看到OSD显示区域和触发区域发生的偏移。OSD显示区域在porch区域已经被画出坐标和OSD实际被触发的区域在像素base区域偏移画出坐标，一旦屏幕发生了旋转，OSD的显 示区域坐标和触发区域坐标的参考点位置发生改变，导致此两个区域不能够重合在一起。
OSD触发区域坐标从像素base区域偏移而来改变为通过porch区域OSD显示区域坐标加以算法运算得到，软件需要侦听数字多媒体显示设备旋转角度，从porch区域中获得OSD显示区域的坐标参数，再通过算法设置OSD触发区域的坐标本质上由OSD显示区域偏移而来，最终使得OSD显示区域和OSD触发区域重合，从而达到不因为显示设备旋转产生OSD显示区域和OSD触发区域偏离的现象。
进一步地，所述步骤S100具体包括：
步骤S101、在一预定时间周期内采样多媒体显示设备的角度传感器角度偏移数据，对角度偏移数据进行量化，并设置旋转标志位对旋转进行标记；
步骤S102、获取旋转标志位的值，检测到发生旋转则计算多媒体显示设备的角度旋转参数。
具体实施时，侦听多媒体屏幕旋转具体包括：在一预定的单位时间周期内多次取样角度传感器角度偏移数据，角度偏移数据进行量化，即通过角度传感器获取当前偏转的具体的度数，预先设置旋转标志位对旋转进行标记，当标志位为1时，则当前多媒体显示设备发生了偏转，当标志位为0，则当前多媒体显示设备未发生偏转。当检测到多媒体设备发生旋转，则将旋转标志位置1。当检测到旋转标志位的值为1则通过编码计算多媒体显示设备的角度旋转参数。
进一步的实施例中，步骤S200具体包括：
步骤S201、预先获取多媒体显示设备的画廊区域，在画廊区域内获取旋转标志位及旋转角度参数；
步骤S202、获取画廊区内OSD显示区域的第一横轴起始坐标和第一纵轴起始坐标，根据旋转角度参数获取OSD显示区域的第一横向坐标偏移量和第二纵向坐标偏移量。
具体实施时，预先获取多媒体显示设备的像素基准区域的画廊区域，获取旋转标志位、获取旋转角度参数，旋转角度参数设置OSD画布的x/y轴起始坐标位置第一横轴起始坐标X0、第一纵轴起始坐标Y0，获取OSD显示区域的第一横向坐标偏移量△X和第一纵向坐标偏移量△Y，返回起始坐标位置X0、Y0，偏移量△X、△Y。
进一步的实施例中，步骤S300具体包括：
步骤S301、获取多媒体显示设备的OSD触发区域第二横轴起始坐标和第二纵轴起始坐标，并获取OSD触发区域的第二横向坐标偏移量和第二纵向坐标偏移量；
步骤S302、依次对比第一横轴起始坐标与第二横轴起始坐标，第一纵轴起始坐标和第与第二纵轴起始坐标，第一横向坐标偏移量与第二横向坐标偏移量，第二纵向坐标偏移量和和第二纵向坐标偏移量的值，判断是否相同；
步骤S303、若不相同，则判定OSD显示区域和OSD触发区域不重合，重新绘制OSD触发区域，直到检测到OSD显示区域和OSD触发区域重合后，OSD触发区域偏移校正完成。
具体实施时，获取OSD显示第一横轴起始坐标X0、第一纵轴起始 坐标Y0和偏移量△X0、△Y0，获取OSD触发区起始坐标第二横轴起始坐标Xt0、第二纵轴起始坐标Yt0和第二横向坐标偏移量△Xt、第二纵向坐标偏移量△Yt，对比OSD显示区、触发区起始坐标X0:Xt0；Y0:Yt0和偏移量△X0:△Xt；△Y0:△Yt，，若OSD显示区域和OSD触发区域不重合，重新绘制OSD触发区域，直到检测到OSD显示区域和OSD触发区域重合后，OSD触发区域偏移校正完成。
进一步地，所述步骤S300还包括：
步骤S31、当重新绘制OSD触发区域时，若检测到绘制次数大于一预定次数时，多媒体显示设备提示绘制失败。
具体实施时，多媒体屏幕旋转导致OSD触发区域偏移校正软件设计流程，当OSD被系统调出，系统侦听当前屏幕的旋转状态，未发生旋转时保持当前的触发坐标，不需要重新绘制；如果发生了改变，则需要跟据旋转的角度和OSD显示区域对目前porch区域的偏移坐标去绘制OSD触发区域，再对比校验OSD显示区域和OSD触发区域的坐标，如果一致则完成绘制，走入继续侦听屏幕旋转流程，如果对比两者区域不重合则需要重新绘制，当绘制超过3次失败时，提示正屏操作，并返回。
此方案在Android智能设备、Linux智能设备等其他数字多媒体设备上测试通过屏幕任意旋转都能够使得OSD显示区域和OSD触发区域重合，软件运行稳定，OSD设置项的调节均准确、有效。
本发明的技术方案具有以下的突破：
a、采用此项技术，解决OSD触发区域和OSD显示区域不因屏 幕大小、屏幕旋转发生偏离问题，通过当前屏幕的旋转和OSD显示的坐标参数，通过算法应用绘制出现OSD触发区域，使得操控、触发OSD都能够准确、正常。
b、数字多媒体显示技术快速发展，硬件开发换代的速度日趋加快，软件需要去适配硬件更新所带来的技术挑战，从软件的角度去实现porch区域单一参考方案提供新的解决思路，数字多媒体显示设备旋转导致OSD触发区域偏移校正技术可以巧妙的从本质上处理OSD触发区域偏离问题。
本发明还提供了一种OSD触发区域偏移校正系统的较佳实施例的功能原理框图，如图5所示，其中，系统包括：
侦听与角度获取模块100，用于当侦听到多媒体显示设备发生旋转时，获取多媒体显示设备的旋转角度参数；具体如上方法实施例所述。
OSD显示区域坐标参数获取模块200，用于根据旋转角度参数获取多媒体显示设备的OSD显示区域的第一坐标参数；具体如上方法实施例所述。
OSD触发区域偏移校正模块300，用于获取多媒体显示设备的OSD触发区域的第二坐标参数，根据第一坐标参数和第二坐标参数判断OSD显示区域与OSD触发区域是否重合，若不重合，则重新绘制OSD触发区域，直到检测到OSD显示区域和OSD触发区域重合后，OSD触发区域偏移校正完成；具体如上方法实施例所述。
所述的OSD触发区域偏移校正系统，其中，所述侦听与角度获 取模块具体包括：
数据采样单元，用于在一预定时间周期内采样多媒体显示设备的角度传感器角度偏移数据，对角度偏移数据进行量化，并设置旋转标志位对旋转进行标记；具体如上方法实施例所述。
旋转角度参数获取单元，用于角度获取旋转标志位的值，检测到发生旋转则计算多媒体显示设备的角度旋转参数；具体如上方法实施例所述。
所述的OSD触发区域偏移校正系统，其中，所述OSD显示区域坐标参数获取模块具体包括：
旋转数据获取单元，用于预先获取多媒体显示设备的画廊区域，在画廊区域内获取旋转标志位及旋转角度参数；具体如上方法实施例所述。
第一坐标参数获取单元，用于获取画廊区内OSD显示区域的第一横轴起始坐标和第一纵轴起始坐标，根据旋转角度参数获取OSD显示区域的第一横向坐标偏移量和第二纵向坐标偏移量；具体如上方法实施例所述。
所述的OSD触发区域偏移校正系统，其中，所述OSD触发区域偏移校正模块具体包括：
第二坐标参数获取单元，用于获取多媒体显示设备的OSD触发区域第二横轴起始坐标和第二纵轴起始坐标，并获取OSD触发区域的第二横向坐标偏移量和第二纵向坐标偏移量；具体如上方法实施例所述。
数据比对单元，用于依次对比第一横轴起始坐标与第二横轴起始坐标，第一纵轴起始坐标和第与第二纵轴起始坐标，第一横向坐标偏移量与第二横向坐标偏移量，第二纵向坐标偏移量和和第二纵向坐标偏移量的值，判断是否相同；具体如上方法实施例所述。
校正单元，用于若不相同，则判定OSD显示区域和OSD触发区域不重合，重新绘制OSD触发区域，直到检测到OSD显示区域和OSD触发区域重合后，OSD触发区域偏移校正完成；具体如上方法实施例所述。
所述的OSD触发区域偏移校正系统，其中，所述OSD触发区域偏移校正模块还包括：
检测与绘制单元，用于当重新绘制OSD触发区域时，若检测到绘制次数大于一预定次数时，多媒体显示设备提示绘制失败；具体如上方法实施例所述。
综上所述，本发明提供了一种OSD触发区域偏移校正方法及系统，方法包括：当侦听到多媒体显示设备发生旋转时，获取多媒体显示设备的旋转角度参数；根据旋转角度参数获取多媒体显示设备的OSD显示区域的第一坐标参数；获取多媒体显示设备的OSD触发区域的第二坐标参数，根据第一坐标参数和第二坐标参数判断OSD显示区域与OSD触发区域是否重合，若不重合，则重新绘制OSD触发区域，直到检测到OSD显示区域和OSD触发区域重合后，OSD触发区域偏移校正完成。本发明通过当前屏幕的旋转和OSD显示的坐标参数，通过算法应用绘制出现OSD触发区域，使得操控、触发OSD 都能够准确、正常，操作简单，方便实用。
应当理解的是，本发明的应用不限于上述的举例，对本领域普通技术人员来说，可以根据上述说明加以改进或变换，所有这些改进和变换都应属于本发明所附权利要求的保护范围。

Claims (12)

  1. 一种OSD触发区域偏移校正方法，其特征在于，方法包括：
    当侦听到多媒体显示设备发生旋转时，获取多媒体显示设备的旋转角度参数；
    根据旋转角度参数获取多媒体显示设备的OSD显示区域的第一坐标参数；
    获取多媒体显示设备的OSD触发区域的第二坐标参数，根据第一坐标参数和第二坐标参数判断OSD显示区域与OSD触发区域是否重合，若不重合，则重新绘制OSD触发区域，直到检测到OSD显示区域和OSD触发区域重合后，OSD触发区域偏移校正完成。
  2. 根据权利要求1所述的OSD触发区域偏移校正方法，其特征在于，所述侦听多媒体显示设备发生旋转时，获取多媒体显示设备的旋转角度参数具体包括：
    在一预定时间周期内采样多媒体显示设备的角度传感器角度偏移数据，对角度偏移数据进行量化，并设置旋转标志位对旋转进行标记；
    获取旋转标志位的值，检测到发生旋转则计算多媒体显示设备的角度旋转参数。
  3. 根据权利要求2所述的OSD触发区域偏移校正方法，其特征在于，所述根据旋转角度参数获取多媒体显示设备的OSD显示区域的第一坐标参数具体包括：
    预先获取多媒体显示设备的画廊区域，在画廊区域内获取旋转标 志位及旋转角度参数；
    获取画廊区内OSD显示区域的第一横轴起始坐标和第一纵轴起始坐标，根据旋转角度参数获取OSD显示区域的第一横向坐标偏移量和第二纵向坐标偏移量。
  4. 根据权利要求3所述的OSD触发区域偏移校正方法，其特征在于，所述获取多媒体显示设备的OSD触发区域的第二坐标参数，根据第一坐标参数和第二坐标参数判断OSD显示区域与OSD触发区域是否重合，若不重合，则重新绘制OSD触发区域，直到检测到OSD显示区域和OSD触发区域重合后，OSD触发区域偏移校正完成具体包括：
    获取多媒体显示设备的OSD触发区域第二横轴起始坐标和第二纵轴起始坐标，并获取OSD触发区域的第二横向坐标偏移量和第二纵向坐标偏移量；
    依次对比第一横轴起始坐标与第二横轴起始坐标，第一纵轴起始坐标和第与第二纵轴起始坐标，第一横向坐标偏移量与第二横向坐标偏移量，第二纵向坐标偏移量和和第二纵向坐标偏移量的值，判断是否相同；
    若不相同，则判定OSD显示区域和OSD触发区域不重合，重新绘制OSD触发区域，直到检测到OSD显示区域和OSD触发区域重合后，OSD触发区域偏移校正完成。
  5. 根据权利要求3所述的OSD触发区域偏移校正方法，其特征在于，所述获取多媒体显示设备的OSD触发区域的第二坐标参数， 根据第一坐标参数和第二坐标参数判断OSD显示区域与OSD触发区域是否重合，若不重合，则重新绘制OSD触发区域，直到检测到OSD显示区域和OSD触发区域重合后，OSD触发区域偏移校正完成还包括：
    当重新绘制OSD触发区域时，若检测到绘制次数大于一预定次数时，多媒体显示设备提示绘制失败。
  6. 根据权利要求2所述的OSD触发区域偏移校正方法，其特征在于，所述获取旋转标志位的值，检测到发生旋转则计算多媒体显示设备的角度旋转参数具体包括：
    当标志位为1时，则当前多媒体显示设备发生了偏转，当标志位为0，则当前多媒体显示设备未发生偏转；当检测到多媒体设备发生旋转，则将旋转标志位置1；当检测到旋转标志位的值为1则通过编码计算多媒体显示设备的角度旋转参数。
  7. 一种OSD触发区域偏移校正系统，其特征在于，系统包括：
    侦听与角度获取模块，用于当侦听到多媒体显示设备发生旋转时，获取多媒体显示设备的旋转角度参数；
    OSD显示区域坐标参数获取模块，用于根据旋转角度参数获取多媒体显示设备的OSD显示区域的第一坐标参数；
    OSD触发区域偏移校正模块，用于获取多媒体显示设备的OSD触发区域的第二坐标参数，根据第一坐标参数和第二坐标参数判断OSD显示区域与OSD触发区域是否重合，若不重合，则重新绘制OSD触发区域，直到检测到OSD显示区域和OSD触发区域重合后， OSD触发区域偏移校正完成。
  8. 根据权利要求7所述的OSD触发区域偏移校正系统，其特征在于，所述侦听与角度获取模块具体包括：
    数据采样单元，用于在一预定时间周期内采样多媒体显示设备的角度传感器角度偏移数据，对角度偏移数据进行量化，并设置旋转标志位对旋转进行标记；
    旋转角度参数获取单元，用于角度获取旋转标志位的值，检测到发生旋转则计算多媒体显示设备的角度旋转参数。
  9. 根据权利要求8所述的OSD触发区域偏移校正系统，其特征在于，所述OSD显示区域坐标参数获取模块具体包括：
    旋转数据获取单元，用于预先获取多媒体显示设备的画廊区域，在画廊区域内获取旋转标志位及旋转角度参数；
    第一坐标参数获取单元，用于获取画廊区内OSD显示区域的第一横轴起始坐标和第一纵轴起始坐标，根据旋转角度参数获取OSD显示区域的第一横向坐标偏移量和第二纵向坐标偏移量。
  10. 根据权利要求9所述的OSD触发区域偏移校正系统，其特征在于，所述OSD触发区域偏移校正模块具体包括：
    第二坐标参数获取单元，用于获取多媒体显示设备的OSD触发区域第二横轴起始坐标和第二纵轴起始坐标，并获取OSD触发区域的第二横向坐标偏移量和第二纵向坐标偏移量；
    数据比对单元，用于依次对比第一横轴起始坐标与第二横轴起始坐标，第一纵轴起始坐标和第与第二纵轴起始坐标，第一横向坐标偏 移量与第二横向坐标偏移量，第二纵向坐标偏移量和和第二纵向坐标偏移量的值，判断是否相同
    校正单元，用于若不相同，则判定OSD显示区域和OSD触发区域不重合，重新绘制OSD触发区域，直到检测到OSD显示区域和OSD触发区域重合后，OSD触发区域偏移校正完成。
  11. 根据权利要求9所述的OSD触发区域偏移校正系统，其特征在于，所述OSD触发区域偏移校正模块还包括：
    检测与绘制单元，用于当重新绘制OSD触发区域时，若检测到绘制次数大于一预定次数时，多媒体显示设备提示绘制失败。
  12. 根据权利要求8所述的OSD触发区域偏移校正系统，其特征在于，所述旋转角度参数获取单元具体包括：
    当标志位为1时，则当前多媒体显示设备发生了偏转，当标志位为0，则当前多媒体显示设备未发生偏转；当检测到多媒体设备发生旋转，则将旋转标志位置1；当检测到旋转标志位的值为1则通过编码计算多媒体显示设备的角度旋转参数。
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