CN102098451A - Image segmentation display method based on synthetic video - Google Patents

Image segmentation display method based on synthetic video Download PDF

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CN102098451A
CN102098451A CN 201010589285 CN201010589285A CN102098451A CN 102098451 A CN102098451 A CN 102098451A CN 201010589285 CN201010589285 CN 201010589285 CN 201010589285 A CN201010589285 A CN 201010589285A CN 102098451 A CN102098451 A CN 102098451A
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image data
step
image
video
area
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CN 201010589285
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李小平
谭小刚
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广东威创视讯科技股份有限公司
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Abstract

The invention provides an image segmentation display method based on a synthetic video, comprising the following steps: reading the synthetic image data which are obtained by coding and are in a YUV 420 format or an RGB (red, green and blue) format; and storing the data into a memory distributed by Direct Draw; clipping the synthetic image data in a designated coordinate region by using Direct Draw according to the received video stream information and sending the synthetic image data to a form; and displaying the synthetic image data in the designated coordinate region by the form. When the whole synthetic image data are displayed, by the method provided by the invention, because of directly skipping to use a temporary memory, the occupation of the memory and CPU (central processing unit) resources is lowered, and the processing efficiency is improved compared with the prior art.

Description

一种基于合成视频的图像分割显示方法 A method of displaying a video based on image segmentation Synthesis

技术领域 FIELD

[0001] 本发明涉及图像显示领域,特别涉及一种基于合成视频的图像分割显示方法。 [0001] The present invention relates to an image display, and more particularly relates to image segmentation based composite video display method. 背景技术 Background technique

[0002] 随着互联网技术的发展,在视频网络传输领域中,为了节省带宽和通信通道,通常将各路不同的视频流进行合成压缩传输并向客户端发送视频流信息(所述视频流信息,包括各路视频流以及所述各路视频流对应的坐标区域),客户端则根据该视频流信息从合成压缩的视频流中提取视频对象,对合成视频进行分割显示。 [0002] With the development of Internet technology, the network transmission of video art, and to save bandwidth communication channels, typically different video streams brightest synthesis sent to the client compression transmission of video stream information (information of the video stream , including video streams and video streams corresponding to the coordinate region), the client is extracted from the composite video objects in a video stream compressed video stream based on the information displayed on the composite video segmentation.

[0003] 现有合成视频分割显示的方法,首先对接收到的合成压缩的视频流数据进行解码,得到一帧一帧YUV420或RGB格式的合成图像,再根据接收到的视频流信息对所述合成图像进行指定坐标区域分割并显示,其中“对所述合成图像进行指定坐标区域分割并显示” 的原理是:根据所述视频流信息,读取所述合成图像的指定坐标区域的图像数据并储存到临时内存;把所述指定坐标区域的图像数据从所述临时内存拷贝到DirectDraw开辟的内存;使用DirectDraw将存储在其开辟的内存中的所述指定坐标区域的图像数据发到窗体并显不。 [0003] The method of the prior composite video division display first docking synthetic compressed video stream received data is decoded, to obtain a synthetic image or an RGB format YUV420, then video stream according to the received information composite image divided and displayed area designated coordinates, wherein "the composite image and displaying a specified coordinate region segmentation" principle is: according to the video stream information, the read image data of the specified coordinates of the area of ​​the composite image, and stored in the temporary memory; the coordinates of the designated area of ​​the image data from the temporary memory opened DirectDraw copied to memory; using the DirectDraw opened stored in its memory the image data in the specified area is sent to the coordinate form and not significant.

[0004] 这种方法,如果只分割显示一小部分指定坐标区域的图像数据,显然能减少占用的内存和CPU资源,但当将所述合成图像的各个坐标区域的图像都分割显示时,则显然由于其中间过程分别使用了临时内存来分别保存分割出来的所述指定坐标区域的图像数据, 消耗额外的内存和CPU资源,降低了整个处理过程的效率。 [0004] In this way, if only the display image data of the divided area designated coordinates of a fraction, can obviously reduce the amount of memory and CPU resources, but the coordinates of the respective image areas synthesized image segmentation are displayed, wherein between process, apparently because of the temporary memory are used to respectively store the segmented image data of the specified coordinates of the area, it consumes additional memory and CPU resources, reducing the efficiency of the whole process.

发明内容 SUMMARY

[0005] 本发明提出一种基于合成视频的图像分割显示的方法,目的是,当将合成图像的各个坐标区域都分割显示时,降低消耗的CPU和内存资源,提高处理效率。 [0005] The present invention proposes a method for synthesizing a video display image segmentation based on the purpose, when the respective coordinate area are divided display the synthesized image, reducing the CPU and memory resource consumption, improve processing efficiency.

[0006] 一种基于合成视频的图像分割显示方法,包括以下步骤: [0006] A display method for image segmentation based on composite video, comprising the steps of:

步骤1、读取解码得到的YUV420或RGB格式的合成图像数据,并存储到DirectDraw分配的内存中; Step 1, or the composite image data in the RGB format YUV420 read decoded and stored in memory DirectDraw allocated;

步骤2、根据接收到的视频流信息,使用DirectDraw裁剪指定坐标区域的合成图像数据并发送到窗体;所述视频流信息,包括各路视频流以及所述各路视频流对应的坐标区域; Step 2, according to the information received video stream, using the DirectDraw clipping region coordinates specified combined image data and sent to the form; the video stream, including the video streams and the video streams corresponding to the coordinate area;

步骤3、所述窗体显示所述指定坐标区域的合成图像数据。 Step 3, the window display coordinate data of the designated area of ​​the synthesized image.

[0007] 与现有技术相比,由于是读取了整个合成图像数据,当只分割显示部分坐标区域的图像时,相对现有技术占用的内存、CPU资源比较多,但当显示整个合成图像数据时,则由于直接跳过使用临时内存,相对现有技术降低了内存、CPU资源的占用,提高了处理效率。 [0007] Compared with the prior art, since the entire composite image data is read, only the image portion when the coordinates of the area of ​​the divided display, compared with the prior art memory occupied, more CPU resources, but to display the entire composite image data, since the use of skip temporary memory, compared with the prior art to reduce the occupied memory, CPU resources, improving processing efficiency.

[0008] 一种基于合成视频的图像分割显示方法,包括以下步骤: [0008] A display method for image segmentation based on composite video, comprising the steps of:

步骤1、根据视频流信息,读取指定坐标区域的YUV420或RGB格式的合成图像数据,并存储到DirectDraw分配的内存中;所述视频流信息,包括各路视频流以及所述各路视频流对应的坐标区域; Step 1, the video stream information, the read synthetic image data or RGB format YUV420 designated coordinates of the area, and stored in the memory allocated DirectDraw; the video stream, including the video streams and video streams corresponding to the coordinate area;

步骤2、使用DirectDraw将所述指定坐标区域的合成图像数据发到窗体; 步骤3、所述窗体显示所述指定坐标区域的合成图像数据。 Step 2, using the DirectDraw designated coordinate area synthesized image data sent to the form; step 3, the window display coordinate data of the designated area of ​​the synthesized image.

[0009] 与现有技术相比,本方法由于直接跳过使用临时内存,不管只是分割显示部分坐标区域的图像,还是显示整个合成图像的不同坐标区域,都减少了图像处理步骤,减少内存及CPU的开销,提高了处理效率。 [0009] Compared with the prior art, the present process is skipped since the direct use of temporary memory, but regardless of the divided image portion coordinates of the area, or the area of ​​the entire display different coordinate synthesized image, the image processing steps are reduced, and to reduce the memory CPU overhead and improve processing efficiency.

附图说明 BRIEF DESCRIPTION

[0010] 图1是本发明一种基于合成视频的图像分割显示方法在实施例一的流程示意图; 图2是本发明一种基于合成视频的图像分割显示方法在实施例二的流程示意图。 [0010] FIG. 1 of the present invention is a composite video image segmentation method is based on the displayed schematic diagram of a process embodiment; FIG. 2 is a schematic flowchart of present invention provides a composite video image segmentation method in a display based on the second embodiment.

具体实施方式 Detailed ways

[0011] 实施例一 [0011] Example a

一种基于合成视频的图像分割显示方法,包括以下步骤,如图1 : 步骤1、读取解码得到的YUV420或RGB格式的合成图像数据,并存储到DirectDraw分配的内存中; A method of displaying a video based on image segmentation of synthesis, comprising the following steps, shown in Figure 1: Step 1, the composite image data is read or RGB format YUV420 decoded and stored in memory DirectDraw allocated;

步骤2、根据接收到的视频流信息,使用DirectDraw裁剪指定坐标区域的合成图像数据并发送到窗体;所述视频流信息,包括各路视频流以及所述各路视频流对应的坐标区域; Step 2, according to the information received video stream, using the DirectDraw clipping region coordinates specified combined image data and sent to the form; the video stream, including the video streams and the video streams corresponding to the coordinate area;

步骤3、所述窗体显示所述指定坐标区域的合成图像数据。 Step 3, the window display coordinate data of the designated area of ​​the synthesized image.

[0012] 具体实现步骤如下: [0012] The specific steps are as follows:

步骤Si、初始化DirectDraw对象,具体包括以下:用DirectDrawCreateEx接口DirectDrawCreateEx创建对象m_dd ;用所述m_dd对象的接口CreateSurface创建主表面m_prisurf对象;用所述111_(1(1对象的接口CreateClipper创建裁减器m_clipper对象;用所述主表面m_prisurf对象的接口SetClipper关联所述裁减器m_Clipper对象,用所述m_dd对象的接口CreateSurface创建后表面m_backsurf对象,并且根据图像的分辨率大小分配内存给所述后表面m_backsurf对象,实现所述步骤1中提到的DirectDraw分配内存; Step Si, initialize DirectDraw objects, including the following: an interface to create objects m_dd with DirectDrawCreateEx DirectDrawCreateEx; create an interface with a main surface of the object m_prisurf m_dd CreateSurface said object; with said 111_ (Interface CreateClipper 1 (1 cuts an object to create the object m_clipper ; SetClipper associated interfaces with the main surface of the object m_prisurf m_Clipper reduction device object created by the rear surface of the object m_backsurf m_dd the CreateSurface object's interface, and memory to said rear surface according to the object m_backsurf resolution size distribution of the image, DirectDraw achieve the allocated memory mentioned in step 1;

步骤S2、以YUV420或RGB格式读取所述合成图像数据并存储到所述后表面m_ backsurf对象分配的内存中,对应实现所述步骤1 ; Step S2, read in YUV420 format or the RGB composite image data stored in the memory and the rear surface of the object assigned m_ backsurf, said step corresponding to achieve 1;

步骤S3、传入窗体句柄,用所述裁减器m_cIipper对象的SetHWnd接口关联传入的窗体句柄; Step S3, the window handle passed by the reduction of an interface association SetHWnd m_cIipper object window handle passed;

步骤S4、根据所述视频流信息,将所述指定坐标区域的合成图像数据对应的坐标值贴到所述主表面m_prisurf对象(也即是使所述主表面m_prisurf对象指向所述指定坐标区域的合成图像数据); Step S4, according to the video stream information, the coordinates of the designated region of the synthesized image data corresponding to the coordinate values ​​attached to the main surface m_prisurf object (that is, the main surface of the object point to the designated coordinates m_prisurf region composite image data);

步骤S5、通过所述主表面m_prisurf对象的接口Bit,把所述主表面m_prisurf对象指向的所述指定坐标区域的合成图像数据发到所述窗体; Step S5, the synthetic image data through the interface region designated coordinates Bit m_prisurf surface of the main object, the subject of the main surface directed m_prisurf sent to the window;

步骤S6、所述窗体显示所述指定坐标区域的合成图像数据。 Step S6, the window displaying the synthesized image data of the specified coordinates of the area.

[0013] 其中,所述步骤S3-S5对应实现所述步骤2,当要显示整个所述合成图像的各个坐标区域的图像数据时,只需要根据所述视频流信息,循环执行步骤S3-S6,使所述主表面m_ prisurf对象先后分别指向的不同坐标区域的合成图像数据并通过所述主表面m_priSUrf 对象的接口Blt发送到对应的窗体,使窗体对应地显示不同坐标区域的合成图像数据,这样实现了所述合成图像的不同坐标区域的同时分割显示。 [0013] wherein said steps S3-S5 corresponding steps S3-S6 implementing the step 2, the respective image data to be displayed when the coordinates of the area of ​​the entire combined image, only the required information according to the video stream repeatedly executed , the main surface of the object m_ prisurf synthesized image data have different coordinate areas are directed to a corresponding form and sent via an interface of said main surface m_priSUrf Blt object, so that the display form corresponding to the coordinates of the synthesized image different regions of data, different coordinate areas is thus achieved while the synthesized image division display.

[0014] 作为种优选的实施例,读取所述合成图像数据时,还包括以下步骤:根据所述视频流信息,判断所述合成图像数据是否进行过图像合成,若是,则判定可以进行图像分割, 执行步骤2;若否,则判定不可以进行图像分割,停止图像分割并给出图像分割失败提示, 例如当所述合成视频只有一路视频流,则所述视频流信息包括该路视频流以及该路视频流对应的坐标区域,则可以根据该视频流信息判定解码得到的图像数据肯定没有进行过图像合成,而没有进行过图像合成的图像数据并不适合进行分割显示。 When [0014] as a seed preferred embodiment, the composite image data is read, further comprising the step of: based on said video stream information, determines whether the synthesized image data is subjected to image combining, if yes, the image can be determined segmentation, step 2; if not, it is determined that not the image segmentation, the image segmentation stops and gives an image segmentation fails tips, for example, when the composite video is only one video stream, the video stream including the video information stream the video stream and corresponding coordinate ranges can be determined in accordance with the image data obtained by decoding the video stream information is certainly not been synthesized image, and synthesized image had no image data is not divided for display.

[0015] 实施例二 [0015] Second Embodiment

一种基于合成视频的图像分割显示方法,包括以下步骤,如图2 : 步骤1、根据视频流信息,读取指定坐标区域的YUV420或RGB格式的合成图像数据,并存储到DirectDraw分配的内存中;所述视频流信息,包括各路视频流以及所述各路视频流对应的坐标区域; A method of displaying a video based on image segmentation of synthesis, comprising the steps of FIG. 2: Step 1, according to the video stream information, the read synthetic image data or RGB format YUV420 designated coordinates of the area, and stores the allocated memory DirectDraw ; information of the video stream, including the video streams and the video streams corresponding to the coordinate area;

步骤2、使用DirectDraw将所述指定坐标区域的合成图像数据发到窗体; 步骤3、所述窗体显示所述指定坐标区域的合成图像数据。 Step 2, using the DirectDraw designated coordinate area synthesized image data sent to the form; step 3, the window display coordinate data of the designated area of ​​the synthesized image.

[0016] 具体实现步骤如下: [0016] The specific steps are as follows:

步骤Si、初始化DirectDraw对象,具体包括:用DirectDrawCreateEx 接口DirectDrawCreateEx创建对象m_dd ;用所述m_dd对象的接口CreateSurface创建主表面m_prisurf对象;用所述111_(1(1对象的接口CreateClipper创建裁减器m_clipper对象,用所述主表面m_prisurf对象接口SetClipper关联所述裁减器m_Clipper对象;用所述111_ dd对象的接口CreateSurface创建后表面m_backsurf对象,并且根据所述视频流信息,分配与所述指定坐标区域的合成图像数据大小相等的内存给所述对象m_dd,实现所述步骤1 中提到的DirectDraw分配内存; Step Si, initialize DirectDraw object comprises: an interface to create objects m_dd with DirectDrawCreateEx DirectDrawCreateEx; create an interface with a main surface of the object m_prisurf m_dd CreateSurface said object; with said 111_ (Interface CreateClipper 1 (1 cuts an object created m_clipper objects, m_prisurf associated with said main surface of said object interface SetClipper reduction is m_Clipper objects; create an interface with the rear surface of the object m_backsurf 111_ dd CreateSurface the object, and a composite image according to the video stream information, the allocation region designated coordinates data size equal to the target memory m_dd, DirectDraw allocated memory to achieve the mentioned step 1;

步骤S2、根据所述视频流信息,以YUV420或RGB格式读取所述指定坐标区域的合成图像数据并存储到所述后表面m_baCkSUrf对象分配的内存中,对应实现所述步骤1 ; Step S2, according to the video information stream, read in the YUV420 format or RGB composite image data designated and stored in the coordinate memory area of ​​the rear surface of the object assigned m_baCkSUrf, said step corresponding to achieve 1;

步骤S3、传入窗体句柄,用所述裁减Iipper对象的SetHWnd接口关联传入的窗体句柄;; Step S3, the window handle passed by the interface associated with the reduction Iipper SetHWnd object window handle passed ;;

步骤S4、通过所述主表面m_prisurf对象的接口Blt (主表面默认与后表面相关联), 把存储在所述后表面m_baCkSUrf对象分配的内存中的所述指定坐标区域的合成图像数据发到所述窗体; Step S4, the main surface via an interface Blt m_prisurf object (main surface and the rear surface of the associated default), to send the synthesized image data stored in the specified coordinate range of the rear surface of the memory allocated to the object in m_baCkSUrf to the said form;

步骤S5、所述窗体显示所述指定坐标区域的合成图像数据。 Step S5, the window display coordinate data of the designated area of ​​the synthesized image.

[0017] 其中,所述步骤S3-S4对应实现所述步骤2,当要显示整个所述合成图像的各个不同坐标区域的图像数据时,只需要根据所述视频流信息,循环执行步骤S1-S5,先后分别以YUV420或RGB格式读取所述指定坐标区域的合成图像数据并存储到所述后表面m_ backsurf对象分配的内存中,并通过所述主表面m_prisurf对象的接口Blt发送到对应的窗体,使窗体对应地显示不同坐标区域的合成图像数据,这样实现了所述合成图像的不同坐标区域的同时分割显示。 [0017] wherein said steps S3-S4 step implementing the step 2, the image data to be displayed when the coordinates of the various regions of the entire combined image, only the required information according to the video stream, cycle corresponds S1- S5, respectively successively read in YUV420 format or the RGB composite image data stored in the specified coordinate range of the memory and to the rear surface of the object m_ backsurf allocated and transmitted through the interface to the corresponding main surface of the Blt object m_prisurf form, so that the display form corresponding to coordinates of the synthesized image data of different regions, different coordinate areas is thus achieved while the synthesized image division display. [0018] 作为一种优选的实施例,在读取所述指定坐标区域的合成图像数据前,还包括以下步骤:根据所述视频流信息,判断所述合成图像数据是否进行过图像合成,若是,则判定可以进行图像分割,执行步骤1 ;若否,则判定不可以进行图像分割,停止图像分割并给出图像分割失败提示,例如当所述合成视频只有一路视频流,则所述视频流信息包括该路视频流以及该路视频流对应的坐标区域,则可以根据该视频流信息判定解码得到的图像数据肯定没有进行过图像合成,而没有进行过图像合成的图像数据并不适合进行分割显示。 [0018] As a preferred embodiment, the composite image data before reading the coordinates of the designated area, further comprising the step of: based on said video stream information, determines whether the synthesized image data is subjected to image combining, if , it is determined that image segmentation may be performed, step 1; if not, it is determined that not the image segmentation, the image segmentation stops and gives an image segmentation fails tips, for example, when the composite video is only one video stream, the video stream the information includes video streams and video streams corresponding to a coordinate region, the decoded image data can be determined certainly not been obtained image synthesis, the image data is not subjected to image synthesis is not suitable for dividing information according to the video stream display.

[0019] 以上所述的本发明实施方式,并不构成对本发明保护范围的限定。 [0019] The above-described embodiments of the present invention, not to limit the scope of the present invention. 任何在本发明的精神和原则之内所作的修改、等同替换和改进等,均应包含在本发明的权利要求保护范围之内。 Any modifications within the spirit and principle of the present invention, equivalent substitutions and improvements should be included within the protection scope claimed in the claims of the present invention.

Claims (4)

1. 一种基于合成视频的图像分割显示方法,其特征在于,包括以下步骤:步骤1、读取解码得到的YUV420或RGB格式的合成图像数据,并存储到DirectDraw分配的内存中;步骤2、根据接收到的视频流信息,使用DirectDraw裁剪指定坐标区域的合成图像数据并发送到窗体;所述视频流信息,包括各路视频流以及所述各路视频流对应的坐标区域;步骤3、所述窗体显示所述指定坐标区域的合成图像数据。 A composite video display based on image segmentation method characterized by comprising the following steps: Step 1, the composite image data or RGB format YUV420 reading obtained by decoding, and stored in the memory allocated DirectDraw; Step 2, the video stream received information, to specify the DirectDraw crop area synthesized image data transmitted to the coordinates of the form; the video stream, including the video streams and the video streams corresponding to the coordinate area; step 3, the window display coordinate data of the designated area of ​​the synthesized image.
2.根据权利要求1所述的基于合成视频的图像分割显示方法,其特征在于,读取所述合成图像数据时,还包括以下步骤:根据所述视频流信息,判断所述合成图像数据是否进行过图像合成,若是,则判定可以进行图像分割,执行步骤2;若否,则判定不可以进行图像分害IJ,停止图像分割并给出分割失败提示。 The synthesized image segmentation based video display method according to claim 1, wherein, when the composite image data is read, further comprising the step of: based on said video stream information, determines whether the synthesized image data subjected to image combining, if yes, it is determined that image segmentation may be performed, step 2; if not, it is determined that the image points may not harm IJ, image segmentation stopped segmentation fails given prompt.
3. 一种基于合成视频的图像分割显示方法,其特征在于,包括以下步骤:步骤1、根据视频流信息,读取指定坐标区域的YUV420或RGB格式的合成图像数据,并存储到DirectDraw分配的内存中;所述视频流信息,包括各路视频流以及所述各路视频流对应的坐标区域;步骤2、使用DirectDraw将所述指定坐标区域的合成图像数据发到窗体;步骤3、所述窗体显示所述指定坐标区域的合成图像数据。 A display method for image segmentation based on composite video, the method comprising the following steps: Step 1, according to the video stream information, the read synthetic image data or RGB format YUV420 designated coordinates of the area, and stores the allocated DirectDraw memory; the video stream, including the video streams and the video streams corresponding to the coordinate area; step 2, using the DirectDraw designated coordinate area synthesized image data sent to the form; step 3, the said window display coordinate data of the designated area of ​​the synthesized image.
4.根据权利要求3所述的基于合成视频的图像分割显示方法,其特征在于,在读取所述指定坐标区域的合成图像数据前,还包括以下步骤:根据所述视频流信息,判断所述合成图像数据是否进行过图像合成,若是,则判定可以进行图像分割,执行步骤1 ;若否,则判定不可以进行图像分割,停止图像分割并给出图像分割失败提示。 The image segmentation based video display method of synthesis according to claim 3, wherein the synthetic image data before reading the designated coordinate area, further comprising the step of: based on said video stream information, determines whether the whether said combined image data subjected to image combining, if yes, it is determined that image segmentation may be performed, step 1; if not, it is determined that not the image segmentation, the image segmentation stops and gives an image segmentation fails tips.
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