WO2013016926A1 - 视频录制装置及视频录制方法 - Google Patents

视频录制装置及视频录制方法 Download PDF

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Publication number
WO2013016926A1
WO2013016926A1 PCT/CN2011/084169 CN2011084169W WO2013016926A1 WO 2013016926 A1 WO2013016926 A1 WO 2013016926A1 CN 2011084169 W CN2011084169 W CN 2011084169W WO 2013016926 A1 WO2013016926 A1 WO 2013016926A1
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Prior art keywords
modified
pixel
pixels
ordinate
horizontal line
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PCT/CN2011/084169
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English (en)
French (fr)
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程亮
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深圳市万兴软件有限公司
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Publication of WO2013016926A1 publication Critical patent/WO2013016926A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/76Television signal recording
    • H04N5/91Television signal processing therefor
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/02Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
    • G11B27/031Electronic editing of digitised analogue information signals, e.g. audio or video signals
    • G11B27/034Electronic editing of digitised analogue information signals, e.g. audio or video signals on discs
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/433Content storage operation, e.g. storage operation in response to a pause request, caching operations
    • H04N21/4334Recording operations
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/44Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
    • H04N21/44008Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving operations for analysing video streams, e.g. detecting features or characteristics in the video stream

Definitions

  • the present invention relates to the field of processor systems, and in particular, to a video recording device and a video recording method. Background technique
  • the user When the existing video recording software is in use, it is generally required that the user first open the player and then manually select the recording area. When the recording area is selected, the user usually manually sets the position and size of the recording frame of the video recording software, so that the recording frame coincides with the boundary of the playing area of the video being played. However, since the position and size of each play area are not completely the same, the user always needs to reset the position and size of the recording area, thereby causing inconvenience to the user. Summary of the invention
  • a technical problem to be solved by embodiments of the present invention is to provide a video recording apparatus and a video recording method.
  • the position and size of the recording area can be set automatically.
  • an embodiment of the present invention provides a video recording apparatus, where the apparatus includes: a grid module, configured to set a detection mark composed of a plurality of pixels on a screen for displaying a video; Determining whether a pixel value is modified on the detection mark; a selection module, configured to determine a recording area according to the detection mark having a pixel value modified; and a recording module, configured to record video data in the area.
  • the detection mark includes at least two pixels arranged in at least one horizontal line along the horizontal axis direction of the screen and at least one vertical line intersecting the at least one horizontal line along the ordinate axis of the screen. Two pixels.
  • the detecting module determines whether a value of at least one pixel located on the at least one horizontal line and a value of at least one pixel located on the at least one vertical line are simultaneously modified.
  • the selection module includes a positioning sub-module and an area sub-module, and the positioning sub-module is configured to: when the value of the at least one pixel located on the at least one horizontal line is located at the at least one vertical line When the value of the at least one pixel is simultaneously modified, acquiring a horizontal line and a vertical line including the pixel that is simultaneously modified, and the area sub-module is configured to acquire a maximum rectangular area that is simultaneously located on the horizontal line and the vertical line of the modified pixel. Recording area.
  • the positioning sub-module is configured to: when a value of a pixel located on the at least one horizontal line and a value of a pixel located on the at least one vertical line are simultaneously modified, acquiring a horizontal line and a vertical line including the simultaneously modified pixel Line, selecting the abscissa of the leftmost modified pixel located on the modified horizontal line and the abscissa of the rightmost modified pixel, and selecting the uppermost side of the modified vertical line The ordinate of the modified pixel and the ordinate of the modified pixel at the bottom.
  • the positioning sub-module is configured to acquire all the pixels whose horizontal lines are modified, and compare the horizontals of all the modified pixels. Coordinates, obtain the abscissa of the two pixels with the smallest abscissa, obtain the abscissa of the two pixels with the largest abscissa, and the positioning sub-module also acquires all the pixels whose vertical line is modified, and compares all the modified The ordinate of the pixel, from the modified pixel, obtains the ordinate of one pixel with the smallest ordinate, and obtains the ordinate of one pixel with the largest ordinate.
  • the area sub-module is configured to select a leftmost modified pixel located on the modified horizontal line, and a rightmost modified pixel, located at an uppermost side of the modified vertical line.
  • the area enclosed by the modified pixel and the modified pixel on the lowermost side is used as the recording area.
  • the direction along the horizontal axis of the screen is the direction of the horizontal line
  • the direction along the ordinate axis of the screen is the direction of the vertical line
  • the detecting module continuously determines, according to a preset frequency, whether the value of the pixel on the detection mark is modified.
  • the longitudinal spacing of the horizontal lines is 160 pixels, and the horizontal spacing of the vertical lines is 120 pixels.
  • the embodiment of the present invention further provides a video recording method, including: setting a detection mark composed of a plurality of pixels on a screen for displaying a video; determining whether a pixel value is modified on the detection mark; When the value of the pixel on the detection mark is modified, the recording area is determined based on the detection mark having the pixel value modified; and the video data in the recording area is recorded.
  • the detection mark includes at least two pixels arranged in at least one horizontal line along the horizontal axis direction of the screen and the at least A horizontal line intersects along at least one vertical line along the ordinate axis of the screen At least two pixels.
  • step of determining whether the value of the pixel on the detection mark is modified determining whether at least one pixel located on the at least one horizontal line and at least one pixel located on the at least one vertical line are Also modified.
  • a maximum rectangular area which is simultaneously located on the horizontal line and the vertical line of the modified pixel is obtained as a recording area.
  • the step of acquiring the horizontal line and the vertical line including the simultaneously modified pixels is acquired Medium:
  • the abscissa when the upper left corner of the screen is the origin, the abscissa is increased to the right, the ordinate is increased downward, all the pixels whose horizontal lines are modified are acquired, and the abscissas of all the modified pixels are compared, and the abscissa is obtained.
  • the abscissa of the two pixels obtains the abscissa of the two pixels with the largest abscissa
  • the positioning sub-module also acquires all the pixels whose vertical line is modified, and compares the ordinates of all the modified pixels, from the modification
  • the ordinate of one pixel having the smallest ordinate is obtained in the pixel, and the ordinate of one pixel having the largest ordinate is obtained.
  • the leftmost modified pixel located on the modified horizontal line, the rightmost modified pixel, the modified pixel on the uppermost side of the modified vertical line, and the lowermost side serves as the recording area.
  • the direction along the horizontal axis of the screen is a horizontal line direction
  • the direction along the vertical axis of the screen is a direction of a vertical line.
  • the step of determining whether the value of the pixel on the detection mark is modified it is determined whether the value of the pixel on the detection mark is modified a plurality of times in accordance with a preset frequency.
  • the longitudinal spacing of the horizontal lines is 160 pixels, and the horizontal spacing of the vertical lines is 120 pixels.
  • the video recording device monitors the change of pixels on the screen through the grid module and the detection module, and then uses the selection module to determine the maximum area of the pixel change, that is, the area of the video play window. This automatically sets the position and size of the recording area, eliminating the inconvenience of manually defining the recording area.
  • FIG. 1 is a block diagram showing the structure of a video recording apparatus provided by the present invention.
  • FIG. 2 is a schematic diagram of a display interface of the video recording device of FIG. 1;
  • FIG. 3 is a flow chart of a video recording method provided by the present invention. detailed description
  • a grid-shaped detection mark composed of pixels is disposed on the screen, and the area where the pixel changes, that is, the area where the video is played, is detected by the detection mark, and the area is used as an area for recording video, thereby realizing Automatically define the purpose of the recording area.
  • FIG. 1 is a video recording apparatus 100 provided by the present invention.
  • the video recording device 100 includes a grid module 110, a detection module 120, a selection module 130, and a recording module 140.
  • the video recording apparatus 100 is used to record video in the play window 210 of the video player 200.
  • the grid module 110 is configured to set a detection mark 300a composed of a plurality of pixels on the screen 300 on which the video is displayed.
  • the grid module 110 is configured to define along the screen 300 according to a preset longitudinal spacing H of each horizontal line 310 and a lateral spacing L of each vertical line 320.
  • At least one horizontal line 310 composed of pixels extending in the direction of the abscissa axis of the screen 300 and at least one vertical line 320 composed of pixels extending in the direction of the ordinate axis of the screen 300 intersecting the at least one horizontal line 310. That is, the direction along the abscissa axis of the screen 300 is the direction of the horizontal line 310 in FIG.
  • the horizontal line 310 and the vertical line 320 are interlaced into a grid-like detection mark.
  • the vertical spacing of each horizontal line 310 in the grid module 110 is 160 pixels
  • the horizontal spacing of the vertical lines 320 is 120 pixels.
  • the grid module 110 defines a plurality of horizontal lines 310 having a pitch of 160 pixels and a plurality of vertical lines 320 having a pitch of 120 pixels on the screen 300.
  • the longitudinal spacing and the lateral spacing may also be set smaller to obtain a denser monitoring grid, monitoring a smaller playback window 210.
  • the longitudinal spacing and the lateral spacing are set larger to achieve a faster reaction speed.
  • the detecting module 120 is configured to determine whether a pixel value is modified on the detection mark 300a. In this embodiment, the detecting module 120 is configured to determine whether a value of at least one pixel located on the at least one horizontal line 310 and a value of at least one pixel located on the at least one vertical line 320 are simultaneously modified. The detecting module 120 acquires the values of all the pixels located on the horizontal line 310 and the vertical line 320 every 100 milliseconds, and determines whether at least one of the values of the pixels is modified.
  • the play window 210 When a certain horizontal line 311 and a vertical line 321 are located in the play window 210, if the play window 210 plays a video, the value of the pixel in the play window 210 will continuously change, that is, located on the horizontal line 311 and vertical. On line 321 , and the pixel values located in the play window 210 will be continually modified to dynamically display the video. Therefore, it can be determined by determining whether the values of the pixels on the horizontal line 311 and the vertical line 321 are changed, thereby determining which horizontal lines 311 and vertical lines 321 the play window 210 falls on. In order to determine the position and size of the play window 210.
  • the detecting module 120 may continuously determine a plurality of times, or continuously determine a plurality of times according to a preset frequency. For example, the detecting module 120 can determine whether the pixels located on the horizontal line 311 and the vertical line 321 have changed at the same time three consecutive times during the three consecutive refreshing processes of the screen 300. When the pixels on the horizontal line 311 and the vertical line 321 are simultaneously changed in three consecutive judgments, the horizontal line 311 and the vertical line 321 are considered to be located on the play window 210.
  • the selection module 130 is configured to determine the recording area 9 according to the detection mark 300a whose pixel value is modified.
  • the selection module 130 includes a positioning sub-module 131 and an area sub-module 132.
  • the positioning sub-module 131 is configured to: when at least one image is located on the at least one horizontal line 310 When the value of the prime and the value of at least one pixel located on the at least one vertical line 320 are simultaneously modified, the horizontal line 311 and the vertical line 321 including the pixels that are simultaneously modified are acquired.
  • the positioning sub-module 131 is configured to: when the value of the pixel located on the at least one horizontal line 310 and the value of the pixel located on the at least one vertical line 320 are simultaneously modified, the acquiring includes simultaneously Modifying the horizontal line 311 and the vertical line 321 of the pixel, selecting the abscissa of the leftmost modified pixel a located on the modified horizontal line 311 and the abscissa of the modified pixel b of the rightmost side, and selecting the location The ordinate of the uppermost modified pixel c on the modified vertical line 321 and the ordinate of the lowermost modified pixel d are described.
  • the positioning sub-module 131 acquires all the pixels whose horizontal line 311 is modified, and compares the abscissas of all the modified pixels.
  • the abscissa of the two pixels a having the smallest abscissa is obtained from the modified pixels, and the abscissas of the two pixels b having the largest abscissa are obtained.
  • the positioning sub-module 131 also acquires all the pixels whose vertical line 321 is modified, compares the ordinates of all the modified pixels, and obtains the ordinate of one pixel c with the smallest ordinate from the modified pixels, and obtains The ordinate of the largest pixel d of the ordinate.
  • the area sub-module 132 is configured to acquire a maximum rectangular area that is simultaneously located on the horizontal line 311 and the vertical line 321 of the modified pixel as the recording area 9.
  • the recording area 9 is an area surrounded by the pixel a, the pixel b, the pixel c, and the pixel d.
  • the recording area 9 is a recording frame to which a video is to be recorded, and the recording area 9 includes an upper lateral edge 91 and a lower lateral edge 92 extending along the abscissa axis direction of the screen 300, extending along the ordinate axis direction of the screen 300.
  • the area sub-module 132 defines the position of the left longitudinal side 93 of the recording area 9 by using the abscissa of the leftmost pixel a as the abscissa of the left vertical side 93, that is, defining the left border of the recording frame. .
  • the position of the right longitudinal side 94 is defined, i.e., the right border of the recording frame is defined.
  • the position of the upper lateral edge 91 is defined, i.e., the upper boundary of the recording frame is defined.
  • the position of the lower lateral edge 92 is defined, i.e., the lower boundary of the recording frame is defined.
  • the area enclosed by the upper lateral edge 91, the lower lateral edge 92, the left vertical edge 93, and the right vertical edge 94 is an area where pixels change when playing a video, that is, the Play window 210.
  • the recording area 9 coincides with the play window 210.
  • the recording module 140 is configured to record video data in the recording area 9.
  • the recording module 140 uses the commonly used recording software to acquire the video data in the recording frame to record the video data in the recording area 9.
  • FIG. 3 is a flowchart of a video recording method according to an embodiment of the present invention. The specific steps are as follows:
  • Step 401 A detection mark 300a composed of a plurality of pixels is set on the screen 300 on which the video is displayed.
  • a plurality of horizontal lines 310 of 160 pixels and a plurality of vertical lines 320 with a pitch of 120 pixels are defined on the screen 300 by the grid module 110.
  • Step 403 Determine whether any pixels on the detection mark 300a are modified.
  • the detection module 120 acquires pixels on the horizontal line 310 of the detection mark 300a and pixels on the vertical line 320, and determines whether there are pixels that are simultaneously modified on the horizontal line 310 and the vertical line 320.
  • Step 405 When the pixel value on the detection mark 300a is modified, the recording area is determined based on the detection mark 300a whose pixel value is modified.
  • the obtaining by the positioning sub-module 131 includes simultaneous modification.
  • the abscissa of the leftmost modified pixel a located on the modified horizontal line 311 and the abscissa of the modified pixel b of the rightmost side are selected, and the selected The ordinate of the modified pixel c on the uppermost side on the modified vertical line 321 and the ordinate of the modified pixel d on the lowermost side.
  • the area sub-module 132 is then used to acquire the largest rectangular area on the horizontal line 310 and the vertical line 320 of the modified pixel as the recording area 9.
  • the area sub-module 132 acquires the recording area 9 through the pixel a, the pixel b, the pixel c, and the pixel d.
  • the recording area 9 includes an upper lateral edge 91 and a lower lateral edge 92 extending along the abscissa axis direction of the screen 300, and a left vertical side 93 and a right vertical side 94 extending along the ordinate axis direction of the screen 300.
  • the abscissa of the left vertical side 93 is the abscissa of the leftmost pixel a
  • the abscissa 94 of the right vertical side is the abscissa of the rightmost pixel b
  • the ordinate of the side 91 is the ordinate of the uppermost pixel c
  • the ordinate of the lower lateral side 92 is the ordinate of the lowermost pixel d.
  • Step 407 Record video data in the recording area 9.
  • the recording is utilized
  • the module 140 uses the commonly used recording software to acquire the video data in the recording frame to record the video data in the recording area 9.
  • step 403 if the values of the pixels located on the at least one horizontal line 310 and the pixels located on the at least one vertical line 320 are simultaneously modified, then returning to step 403.
  • step 403 when the values of the pixels located on the at least one horizontal line 310 and the pixels located on the at least one vertical line 320 are simultaneously modified, it is also possible to return to step 403 again for successive determinations.
  • the plurality of determinations may be performed according to a preset frequency.
  • the process proceeds to step 405.
  • the video recording device monitors the change of pixels on the screen through the grid module and the detection module, and then uses the selection module to determine the maximum area of the pixel change, that is, the area of the video play window. This automatically sets the position and size of the recording area, eliminating the inconvenience of manually defining the recording area.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Signal Processing For Recording (AREA)

Abstract

本发明实施例公开了一种视频录制装置包括:网格模块,用于在显示视频的屏幕上设定由多个像素组成的检测标记。侦测模块,用于判断所述检测标记上是否有像素值被修改。选取模块,用于根据有像素值被修改的所述检测标记确定录制区域。录制模块,用于录制所述区域内的视频数据。该装置能通过检测像素变化的区域自动设定录制区域,省去手动设定录制区域的不便。另,本发明还提供一种视频录制方法。

Description

视频录制装置及视频录制方法
本申请要求于 2011年 7月 29日提交中国专利局、申请号为 201110214680.3 , 发明名称为 "视频录制装置及视频录制方法" 的中国专利申请的优先权, 其全 部内容通过引用结合在本申请中。 技术领域
本发明涉及处理器系统领域, 尤其涉及一种视频录制装置及视频录制方法。 背景技术
现有的视频录制软件在使用时, 一般需要用户先打开播放器, 然后手动选 取录制区域。 选取录制区域时一般是用户手动设定视频录制软件的录制框的位 置及大小, 使录制框刚好与正在播放视频的播放区域的边界重合。 然而, 由于 每次播放区域的位置及尺寸并不是完全相同的, 所以用户总是需要重新设定录 制区域的位置及尺寸, 因而造成用户使用上的不便。 发明内容
本发明实施例所要解决的技术问题在于, 提供一种视频录制装置及视频录 制方法。 可自动设定录制区域的位置及尺寸。
为了解决上述技术问题, 本发明实施例提供了一种视频录制装置, 该装置 包括: 网格模块, 用于在显示视频的屏幕上设定由多个像素组成的检测标记; 侦测模块, 用于判断所述检测标记上是否有像素值被修改; 选取模块, 用于根 据有像素值被修改的所述检测标记确定录制区域; 录制模块, 用于录制所述区 域内的视频数据。
其中, 所述检测标记包括沿所述屏幕横坐标轴方向按至少一条水平线排列 的至少两个像素及与所述至少一条水平线相交的沿所述屏幕纵坐标轴方向按至 少一条垂直线排列的至少两个像素。
其中, 所述侦测模块判断是否有位于所述至少一条水平线上的至少一个像 素的值及位于所述至少一条垂直线上的至少一个像素的值被同时修改。
其中, 所述选取模块包括定位子模块和区域子模块, 所述定位子模块用于 当位于所述至少一条水平线上的至少一个像素的值及位于所述至少一条垂直线 上的至少一个像素的值被同时修改时, 获取包括被同时修改像素的水平线及垂 直线, 所述区域子模块用于获取同时位于所述被修改像素的水平线及垂直线上 的最大矩形区域作为录制区域。
其中, 所述定位子模块用于当有位于所述至少一条水平线上的像素的值及 位于所述至少一条垂直线上的像素的值被同时修改时, 获取包括被同时修改像 素的水平线及垂直线, 选取位于所述被修改的水平线上的最左侧的被修改的像 素的横坐标及最右侧的被修改的像素的横坐标, 选取位于所述被修改的垂直线 上的最上侧的被修改的像素的纵坐标及最下侧的被修改的像素的纵坐标。
其中, 当以所述屏幕左上角为原点, 横坐标向右增加, 纵坐标向下增加, 所述定位子模块用于获取所述水平线被修改的所有像素, 并比较所有被修改的 像素的横坐标, 获得横坐标最小的两个像素的横坐标, 获得横坐标最大的两个 像素的横坐标, 且所述定位子模块还获取所述垂直线被修改的所有像素, 并比 较所有被修改的像素的纵坐标, 从修改的像素中获得纵坐标最小的一个像素的 纵坐标, 获得纵坐标最大的一个像素的纵坐标。
其中, 所述区域子模块用于选取由位于所述被修改的水平线上的最左侧的 被修改的像素、 最右侧的被修改的像素, 位于所述被修改的垂直线上的最上侧 的被修改的像素及最下侧的被修改的像素围成的区域作为录制区域。
其中, 沿所述屏幕横坐标轴方向为水平线的方向, 沿所述屏幕纵坐标轴方 向为垂直线的方向。
其中, 所述侦测模块按照预设的频率连续多次判断所述检测标记上的像素 的值是否被修改。
其中, 所述各条水平线的纵向间距是 160个像素, 所述各条垂直线的横向 间距是 120个像素。
相应的, 本发明实施例还提供了一种视频录制方法, 包括: 在显示视频的 屏幕上设定由多个像素组成的检测标记; 判断所述检测标记上是否有像素值被 修改; 当所述检测标记上的像素的值被修改时, 根据有像素值被修改的所述检 测标记确定录制区域; 录制所述录制区域内的视频数据。
其中, 在所述在屏幕上设定由多个像素组成的检测标记的步骤中, 所述检 测标记包括沿所述屏幕横坐标轴方向按至少一条水平线排列的至少两个像素及 与所述至少一条水平线相交的沿所述屏幕纵坐标轴方向按至少一条垂直线排列 的至少两个像素。
其中, 在判断所述检测标记上的像素的值是否被修改的步骤中, 判断是否 有位于所述至少一条水平线上的至少一个像素及位于所述至少一条垂直线上的 至少一个像素的值被同时修改。
其中, 在获取像素的值被修改的所述检测标记所围成的最大区域的步骤中 包括以下子步骤:
当位于所述至少一条水平线上的至少一个像素的值及位于所述至少一条垂 直线上的至少一个像素的值被同时修改时, 获取包括被同时修改像素的水平线 及垂直线;
获取同时位于所述被修改像素的水平线及垂直线上的最大矩形区域作为录 制区域。
其中, 在当位于所述至少一条水平线上的至少一个像素的值及位于所述至 少一条垂直线上的至少一个像素的值被同时修改时, 获取包括被同时修改像素 的水平线及垂直线的步骤中:
当有位于所述至少一条水平线上的像素的值及位于所述至少一条垂直线上 的像素的值被同时修改时, 获取包括被同时修改像素的水平线及垂直线, 选取 位于所述被修改的水平线上的最左侧的被修改的像素的横坐标及最右侧的被修 改的像素的横坐标, 选取位于所述被修改的垂直线上的最上侧的被修改的像素 的纵坐标及最下侧的被修改的像素的纵坐标。
其中, 当以所述屏幕左上角为原点, 横坐标向右增加, 纵坐标向下增加, 获取所述水平线被修改的所有像素, 并比较所有被修改的像素的横坐标, 获得 横坐标最小的两个像素的横坐标, 获得横坐标最大的两个像素的横坐标, 且所 述定位子模块还获取所述垂直线被修改的所有像素, 并比较所有被修改的像素 的纵坐标, 从修改的像素中获得纵坐标最小的一个像素的纵坐标, 获得纵坐标 最大的一个像素的纵坐标。
其中, 在获取同时位于所述被修改像素的水平线及垂直线上的最大矩形区 域作为录制区域的步骤中:
选取由位于所述被修改的水平线上的最左侧的被修改的像素、 最右侧的被 修改的像素, 位于所述被修改的垂直线上的最上侧的被修改的像素及最下侧的 被修改的像素围成的区域作为录制区域。 其中, 沿所述屏幕横坐标轴方向为水平线的方向, 沿所述屏幕纵坐标轴方 向为垂直线的方向。
其中, 在判断所述检测标记上的像素的值是否被修改的步骤中, 按照预设 的频率连续多次判断所述检测标记上的像素的值是否被修改。
其中, 所述各条水平线的纵向间距是 160个像素, 所述各条垂直线的横向 间距是 120个像素。
本发明提供的视频录制装置通过所述网格模块及侦测模块监测屏幕上像素 的变化, 再利用选取模块确定像素变化的最大区域, 即视频播放窗口的区域。 从而自动设定录制区域的位置及尺寸, 省去手动界定录制区域的不便。 附图说明 例或现有技术描述中所需要使用的附图作筒单地介绍, 显而易见地, 下面描述 中的附图仅仅是本发明的一些实施例, 对于本领域普通技术人员来讲, 在不付 出创造性劳动的前提下, 还可以根据这些附图获得其他的附图。
图 1是本发明提供的视频录制装置的结构框图;
图 2是图 1的视频录制装置的显示界面示意图;
图 3是本发明提供的视频录制方法的流程图。 具体实施方式
在本发明实施方式中, 在屏幕上设置由像素组成的网格状检测标记, 通过 所述检测标记检测像素变化的区域, 即视频播放的区域, 并将该区域作为录制 视频的区域, 从而实现自动定义录制区域的目的。
请参阅图 1 ,为本发明提供的一种视频录制装置 100。所述视频录制装置 100 包括网格模块 110、 侦测模块 120、 选取模块 130及录制模块 140。
请参阅图 2, 所述视频录制装置 100用于录制视频播放器 200的播放窗口 210中的视频。
所述网格模块 110用于在显示视频的屏幕 300上设定由多个像素组成的检 测标记 300a。 本实施方式中, 所述网格模块 110用于在屏幕 300上根据预设的 各条水平线 310的纵向间距 H及各条垂直线 320的横向间距 L, 定义沿所述屏 幕 300横坐标轴方向延伸的由像素组成的至少一条水平线 310及与所述至少一 条水平线 310相交的沿所述屏幕 300的纵坐标轴方向延伸的由像素组成的至少 一条垂直线 320。即,沿所述屏幕 300横坐标轴方向为图 2中水平线 310的方向, 沿所述屏幕 300纵坐标轴方向为图 2中垂直线 320的方向。 所述水平线 310及 所述垂直线 320交织成网格状检测标记。 本实施方式中, 所述网格模块 110 内 预设各条水平线 310的纵向间距是 160个像素, 所述各条垂直线 320的横向间 距是 120个像素。 所述网格模块 110在所述屏幕 300上定义多条间距是 160个 像素的水平线 310及多条间距是 120个像素的垂直线 320。 当然, 在其他实施方 式中, 所述纵向间距及横向间距也可以设置的更小, 以获得更密的监控网格, 监控更小的播放窗口 210。 或将所述纵向间距及所述横向间距设置的更大, 以获 得更快的反应速度。
所述侦测模块 120用于判断所述检测标记 300a上是否有像素值被修改。 本 实施方式中, 所述侦测模块 120用于判断是否有位于所述至少一条水平线 310 上的至少一个像素的值及位于所述至少一条垂直线 320上的至少一个像素的值 被同时修改。 所述侦测模块 120每 100毫秒获取一次位于所述水平线 310及垂 直线 320上的所有像素的值, 并判断这些像素的值中是否至少有一个像素的值 被修改。 当某个水平线 311及垂直线 321位于所述播放窗口 210中时, 如果所 述播放窗口 210播放视频, 所述播放窗口 210中的像素的值将不断发生变化, 即位于所述水平线 311及垂直线 321上, 且位于所述播放窗口 210内的像素值 将被不断的修改, 以动态显示视频。 所以可以通过判断位于所述水平线 311 及 垂直线 321上像素的值是否变化, 从而判断所述播放窗口 210落在哪几个水平 线 311及垂直线 321上。 以便判断出播放窗口 210的位置及大小。 为了减少误 判的概率, 所述侦测模块 120可以连续判断多次, 或按照预设的频率连续判断 多次。 例如, 所述侦测模块 120可以在所述屏幕 300的连续三次刷新过程中连 续三次都判断位于所述水平线 311及垂直线 321上的像素是否同时发生了变化。 当连续三次判断中所述水平线 311及垂直线 321上的像素都同时发生了变化时, 才认为所述水平线 311及垂直线 321位于所述播放窗口 210上。
所述选取模块 130用于根据有像素值被修改的所述检测标记 300a确定录制 区域 9。 本实施方式中, 所述选取模块 130 包括定位子模块 131和区域子模块 132。 所述定位子模块 131用于当位于所述至少一条水平线 310上的至少一个像 素的值及位于所述至少一条垂直线 320上的至少一个像素的值被同时修改时, 获取包括被同时修改像素的水平线 311及垂直线 321。 本实施方式中, 所述定位 子模块 131用于当有位于所述至少一条水平线 310上的像素的值及位于所述至 少一条垂直线 320上的像素的值被同时修改时, 获取包括被同时修改像素的水 平线 311及垂直线 321 ,选取位于所述被修改的水平线 311上的最左侧的被修改 的像素 a的横坐标及最右侧的被修改的像素 b的横坐标, 选取位于所述被修改 的垂直线 321上的最上侧的被修改的像素 c的纵坐标及最下侧的被修改的像素 d 的纵坐标。 若以所述屏幕 300左上角为原点, 横坐标向右增加, 纵坐标向下增 加。 所述定位子模块 131获取所述水平线 311被修改的所有像素, 并比较所有 被修改的像素的横坐标。 从修改的像素中获得横坐标最小的两个像素 a 的横坐 标, 获得横坐标最大的两个像素 b的横坐标。 同时, 所述定位子模块 131还获 取所述垂直线 321 被修改的所有像素, 并比较所有被修改的像素的纵坐标, 从 修改的像素中获得纵坐标最小的一个像素 c 的纵坐标, 获得纵坐标最大的一个 像素 d的纵坐标。
所述区域子模块 132用于获取同时位于所述被修改像素的水平线 311及垂 直线 321上的最大矩形区域作为录制区域 9。 本实施方式中, 所述录制区域 9即 是由所述像素 a、 像素 b、 像素 c及像素 d围成的区域。 所述录制区域 9是将要 录取视频的录制框, 该录制区域 9包括沿所述屏幕 300横坐标轴方向延伸的上 横边 91及下横边 92, 沿所述屏幕 300纵坐标轴方向延伸的左纵边 93及右纵边 94, 所述左纵边 93的横坐标为所述最左侧的像素 a的横坐标, 所述右纵边 94 的横坐标为所述最右侧的像素 b的横坐标, 所述上横边 91的纵坐标为所述最上 侧的像素 c的纵坐标,所述下横边 92的纵坐标为所述最下侧的像素 d的纵坐标。 所述区域子模块 132利用所述最左侧的像素 a的横坐标作为所述左纵边 93的横 坐标, 定义所述录制区域 9的左纵边 93的位置, 即界定录制框的左边界。 利用 所述最右侧的像素 b的横坐标作为所述右纵边 94的横坐标,定义所述右纵边 94 的位置, 即界定所述录制框的右边界。 利用所述最上侧的像素 c 的纵坐标作为 所述上横边 91的纵坐标, 定义所述上横边 91的位置, 即界定所述录制框的上 边界。 利用所述最下侧的像素 d的纵坐标作为所述下横边 92的纵坐标, 定义所 述下横边 92的位置, 即界定所述录制框的下边界。 所述上横边 91、 下横边 92、 左纵边 93及右纵边 94所围成的区域为播放视频时像素变化的区域, 即是所述 播放窗口 210。 所述录制区域 9与所述播放窗口 210重合。
所述录制模块 140,用于录制所述录制区域 9内的视频数据。本实施方式中, 所述录制模块 140采用常用的录制软件获取录制框内视频数据的方法进行录制 录制区域 9内的视频数据。
请参阅图 3 , 为本发明实施方式提供的视频录制方法的流程图, 具体步骤如 下:
步骤 401 : 在显示视频的屏幕 300上设定由多个像素组成的检测标记 300a。 本实施方式中, 利用所述网格模块 110在屏幕 300上定义多条间距是 160个像 素的水平线 310及多条间距是 120个像素的垂直线 320。
步骤 403: 判断所述检测标记 300a上是否有像素被修改。 本实施方式中, 利用所述侦测模块 120获取所述检测标记 300a的水平线 310上的像素及垂直线 320上的像素,并判断是否水平线 310及垂直线 320上是否存在同时被修改的像 素。
步骤 405: 当所述检测标记 300a上的像素值被修改时, 根据有像素值被修 改的所述检测标记 300a确定录制区域。 本实施方式中, 当有位于所述至少一条 水平线 310上的像素的值及位于所述至少一条垂直线 320上的像素的值被同时 修改时, 利用所述定位子模块 131获取包括被同时修改像素的水平线 311及垂 直线 321 ,选取位于所述被修改的水平线 311上的最左侧的被修改的像素 a的横 坐标及最右侧的被修改的像素 b 的横坐标, 选取位于所述被修改的垂直线 321 上的最上侧的被修改的像素 c的纵坐标及最下侧的被修改的像素 d的纵坐标。
然后再利用所述区域子模块 132获取同时位于所述被修改像素的水平线 310 及垂直线 320上的最大矩形区域作为录制区域 9。所述区域子模块 132通过所述 像素 a、 像素 b、 像素 c及像素 d获取录制区域 9。 所述录制区域 9包括沿所述 屏幕 300横坐标轴方向延伸的上横边 91及下横边 92,沿所述屏幕 300纵坐标轴 方向延伸的左纵边 93及右纵边 94。 其中, 所述左纵边 93的横坐标为所述最左 侧的像素 a的横坐标,所述右纵边的横坐标 94为所述最右侧的像素 b的横坐标, 所述上横边 91的纵坐标为所述最上侧的像素 c的纵坐标, 所述下横边 92的纵 坐标为所述最下侧的像素 d的纵坐标。 从而定义出所述录制区域 9的尺寸及位 置。
步骤 407: 录制所述录制区域 9内的视频数据。 本实施方式中, 利用所述录 制模块 140采用常用的录制软件获取录制框内视频数据的方法进行录制录制区 域 9内的视频数据。
在步骤 403 中, 如果没有位于所述至少一条水平线 310上的像素及位于所 述至少一条垂直线 320上的像素的值被同时修改, 则重新回到步骤 403。
在步骤 403 中, 当有位于所述至少一条水平线 310上的像素及位于所述至 少一条垂直线 320上的像素的值被同时修改时, 还可以再次回到步骤 403进行 连续多次判断。 该多次判断可以按照预设的频率进行, 将多次判断中所述水平 线 311及垂直线 321上的像素都同时发生了变化时, 再转到步骤 405。
本发明提供的视频录制装置通过所述网格模块及侦测模块监测屏幕上像素 的变化, 再利用选取模块确定像素变化的最大区域, 即视频播放窗口的区域。 从而自动设定录制区域的位置及尺寸, 省去手动界定录制区域的不便。
以上所揭露的仅为本发明一种较佳实施例而已, 当然不能以此来限定本发 明之权利范围, 因此依本发明权利要求所作的等同变化, 仍属本发明所涵盖的 范围。

Claims

1. 一种视频录制装置, 该装置包括:
网格模块, 用于在显示视频的屏幕上设定由多个像素组成的检测标记; 侦测模块, 用于判断所述检测标记上是否有像素值被修改;
选取模块, 用于根据有像素值被修改的所述检测标记确定录制区域; 录制模块, 用于录制所述录制区域内的视频数据。
2. 如权利要求 1所述的视频录制装置, 其特征在于: 所述检测标记包括沿 所述屏幕横坐标轴方向按至少一条水平线排列的至少两个像素及与所述至少一 条水平线相交的沿所述屏幕纵坐标轴方向按至少一条垂直线排列的至少两个像 素。
3. 如权利要求 2所述的视频录制装置, 其特征在于: 所述侦测模块判断是 否有位于所述至少一条水平线上的至少一个像素的值及位于所述至少一条垂直 线上的至少一个像素的值被同时修改。
4. 如权利要求 2所述的视频录制装置, 其特征在于: 所述选取模块包括定 位子模块和区域子模块, 所述定位子模块用于当位于所述至少一条水平线上的 至少一个像素的值及位于所述至少一条垂直线上的至少一个像素的值被同时修 改时, 获取包括被同时修改像素的水平线及垂直线, 所述区域子模块用于获取 同时位于所述被修改像素的水平线及垂直线上的最大矩形区域作为录制区域。
5. 如权利要求 4所述的视频录制装置, 其特征在于: 所述定位子模块用于 当有位于所述至少一条水平线上的像素的值及位于所述至少一条垂直线上的像 素的值被同时修改时, 获取包括被同时修改像素的水平线及垂直线, 选取位于 所述被修改的水平线上的最左侧的被修改的像素的横坐标及最右侧的被修改的 像素的横坐标, 选取位于所述被修改的垂直线上的最上侧的被修改的像素的纵 坐标及最下侧的被修改的像素的纵坐标。
6. 如权利要求 5所述的视频录制装置, 其特征在于: 当以所述屏幕左上角 为原点, 横坐标向右增加, 纵坐标向下增加, 所述定位子模块用于获取所述水 平线被修改的所有像素, 并比较所有被修改的像素的横坐标, 获得横坐标最小 的两个像素的横坐标, 获得横坐标最大的两个像素的横坐标, 且所述定位子模 块还获取所述垂直线被修改的所有像素, 并比较所有被修改的像素的纵坐标, 从修改的像素中获得纵坐标最小的一个像素的纵坐标, 获得纵坐标最大的一个 像素的纵坐标。
7. 如权利要求 4所述的视频录制装置, 其特征在于: 所述区域子模块用于 选取由位于所述被修改的水平线上的最左侧的被修改的像素、 最右侧的被修改 的像素, 位于所述被修改的垂直线上的最上侧的被修改的像素及最下侧的被修 改的像素围成的区域作为录制区域。
8. 如权利要求 2所述的视频录制装置, 其特征在于: 沿所述屏幕横坐标轴 方向为水平线的方向, 沿所述屏幕纵坐标轴方向为垂直线的方向。
9. 如权利要求 2所述的视频录制装置, 其特征在于: 所述侦测模块按照预 设的频率连续多次判断所述检测标记上的像素的值是否被修改。
10. 如权利要求 2所述的视频录制装置, 其特征在于: 所述各条水平线的纵 向间距是 160个像素, 所述各条垂直线的横向间距是 120个像素。
11. 一种视频录制方法, 该方法包括下列步骤:
在显示视频的屏幕上设定由多个像素组成的检测标记;
判断所述检测标记上是否有像素值被修改;
当所述检测标记上的像素值被修改时, 根据有像素值被修改的所述检测标 记确定录制区域;
录制所述录制区域内的视频数据。
12. 如权利要求 11所述的视频录制方法, 其特征在于: 在所述在屏幕上设 定由多个像素组成的检测标记的步骤中, 所述检测标记包括沿所述屏幕横坐标 轴方向按至少一条水平线排列的至少两个像素及与所述至少一条水平线相交的 沿所述屏幕纵坐标轴方向按至少一条垂直线排列的至少两个像素。
13. 如权利要求 7所述的视频录制方法, 其特征在于: 在判断所述检测标记 上的像素的值是否被修改的步骤中, 判断是否有位于所述至少一条水平线上的 至少一个像素及位于所述至少一条垂直线上的至少一个像素的值被同时修改。
14. 如权利要求 7所述的视频录制方法, 其特征在于: 在获取像素的值被修 改的所述检测标记所围成的最大区域的步骤中包括以下子步骤:
当位于所述至少一条水平线上的至少一个像素的值及位于所述至少一条垂 直线上的至少一个像素的值被同时修改时, 获取包括被同时修改像素的水平线 及垂直线; 获取同时位于所述被修改像素的水平线及垂直线上的最大矩形区域作为录 制区域。
15. 如权利要求 14所述的视频录制装置, 其特征在于: 在当位于所述至少 一条水平线上的至少一个像素的值及位于所述至少一条垂直线上的至少一个像 素的值被同时修改时, 获取包括被同时修改像素的水平线及垂直线的步骤中: 当有位于所述至少一条水平线上的像素的值及位于所述至少一条垂直线上 的像素的值被同时修改时, 获取包括被同时修改像素的水平线及垂直线, 选取 位于所述被修改的水平线上的最左侧的被修改的像素的横坐标及最右侧的被修 改的像素的横坐标, 选取位于所述被修改的垂直线上的最上侧的被修改的像素 的纵坐标及最下侧的被修改的像素的纵坐标。
16. 如权利要求 15所述的视频录制装置, 其特征在于: 当以所述屏幕左上 角为原点, 横坐标向右增加, 纵坐标向下增加, 获取所述水平线被修改的所有 像素, 并比较所有被修改的像素的横坐标, 获得横坐标最小的两个像素的横坐 标, 获得横坐标最大的两个像素的横坐标, 且所述定位子模块还获取所述垂直 线被修改的所有像素, 并比较所有被修改的像素的纵坐标, 从修改的像素中获 得纵坐标最小的一个像素的纵坐标, 获得纵坐标最大的一个像素的纵坐标。
17. 如权利要求 14所述的视频录制装置, 其特征在于: 在获取同时位于所 述被修改像素的水平线及垂直线上的最大矩形区域作为录制区域的步骤中: 选取由位于所述被修改的水平线上的最左侧的被修改的像素、 最右侧的被 修改的像素, 位于所述被修改的垂直线上的最上侧的被修改的像素及最下侧的 被修改的像素围成的区域作为录制区域。
18. 如权利要求 12所述的视频录制装置, 其特征在于: 沿所述屏幕横坐标 轴方向为水平线的方向, 沿所述屏幕纵坐标轴方向为垂直线的方向。
19. 如权利要求 11所述的视频录制装置, 其特征在于: 在判断所述检测标 记上的像素的值是否被修改的步骤中, 按照预设的频率连续多次判断所述检测 标记上的像素的值是否被修改。
20. 如权利要求 12所述的视频录制装置, 其特征在于: 所述各条水平线的 纵向间距是 160个像素, 所述各条垂直线的横向间距是 120个像素。
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