CN105578192A - Power visual metamodel agglomeration compression method - Google Patents

Power visual metamodel agglomeration compression method Download PDF

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Publication number
CN105578192A
CN105578192A CN201510943357.8A CN201510943357A CN105578192A CN 105578192 A CN105578192 A CN 105578192A CN 201510943357 A CN201510943357 A CN 201510943357A CN 105578192 A CN105578192 A CN 105578192A
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China
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power
visual
video stream
visual element
metamodel
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CN201510943357.8A
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Chinese (zh)
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归宇
吴健
陈昱
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国网浙江省电力公司湖州供电公司
国家电网公司
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Priority to CN201510943357.8A priority Critical patent/CN105578192A/en
Publication of CN105578192A publication Critical patent/CN105578192A/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/20Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using video object coding
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/80Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00Television systems
    • H04N7/18Closed circuit television systems, i.e. systems in which the signal is not broadcast

Abstract

The invention provides a power visual metamodel agglomeration compression method for the purposes of solving the problems existing in the prior art and effectively improving the compression efficiency. The method comprises the following steps: step one, establishing a power visual element database, wherein the power visual element database comprises a power visual metamodel of equipment in a transformer station; and step two, packaging a power equipment object in a video stream; and when video monitoring is carried out on power operation in the transformer station, monitoring in real time whether power equipment which can be replaced by the power visual metamodel in the power visual element database exists in the video stream, and if so, deleting the power equipment from the video stream and embedding an index code of the power visual metamodel in a corresponding position. According to the invention, compression coding operation is no longer performed on the visual metamodel already identified in a video and existing compressed model data is directly used, such that the calculation amount is substantially reduced, and the compression speed is improved.

Description

电力视觉元模型聚合压缩方法 Power Vision metamodel polymerization Compression

技术领域 FIELD

[0001]本发明涉及电力领域,具体涉及一种电力视觉元模型聚合压缩方法。 [0001] The present invention relates to the field of power, particularly electric power, to a visual element model polymerization compression method.

背景技术 Background technique

[0002]视频编码方式就是指通过特定的压缩技术,将某个视频格式的文件转换成另一种视频格式文件的方式。 [0002] Video coding mode is specified by means of compression technology, video converting a file format into another video format files. 视频流传输中最为重要的编解码标准有国际电联的H.261、H.263、 The most important video streaming codec ITU standards H.261, H.263,

H.264,运动静止图像专家组的M-JPEG和国际标准化组织运动图像专家组的MPEG系列标准,此外在互联网上被广泛应用的还有Real-Networks的RealVideo、微软公司的WMV以及Apple公司的QuickTime等。 H.264, motion picture experts group is still M-JPEG and MPEG series of standards Moving Picture Experts Group of the International Organization for Standardization, as well as Real-Networks Additionally on the Internet is widely used in RealVideo, WMV Microsoft and Apple Inc. QuickTime and so on.

[0003]现有的这些视频压缩技术未针对于变电站内的图像特征进行优化,因此应用于变电站内视频传输时存在以下问题: [0003] These conventional video compression techniques are not optimized for the image characteristics in the substation, and therefore there is a problem when applied to video transmission substation:

[0004]压缩效率低 Low [0004] The compression efficiency

[0005]对于变电站内频繁出现的视频图像元素(如变压器等),都按照与其他景物同样的方式进行压缩,而这一类设备在变电站内大量重复出现,每次都需要单独进行压缩,这就导致大量重复工作,浪费大量的计算时间,压缩效率低。 [0005] For a video image frequently occurring elements in the substation (e.g., transformers, etc.) are performed in the same manner as other compressed scene, and this type of equipment in the substation large repeated, each time need to be compressed separately, It led to a lot of duplication of effort and waste a lot of computing time, low compression efficiency.

[0006]带宽占用大 [0006] large bandwidth

[0007]同样的原因,对于重复出现的电力设备,在进行传输时都按其压缩过的原始视频图像序列进行传输,这就导致数据量大。 [0007] For the same reason, the power device for the recurring, according to its original compressed sequence of video images for transmission during the transmission, which leads to large volumes of data. 同时,因为变电站内的视频监控点非常多,所有监控点的视频数据累加起来导致网络带宽的迅速耗尽。 At the same time, because so many points in the substation video monitoring, video surveillance data points add up all leads to rapid depletion of network bandwidth.

发明内容 SUMMARY

[0008]本发明的目的在于解决现有技术中所存在的问题,找到一种电力视觉元模型聚合压缩方法,有效提高压缩效率。 [0008] The object of the present invention is to solve the prior art problems, to find a visual power metamodel polymerization compression method, compression efficiency is improved effectively.

[0009]为了实现所述目的,本发明电力视觉元模型聚合压缩方法,包括如下步骤, [0009] In order to achieve the above object, the present invention is a power visual element model polymerization compression method, comprising the steps of,

[0010]步骤一:建立电力视觉元素库,电力视觉元素库中包括变电站内设备的电力视觉元模型; [0010] Step a: establishing a library of visual elements of power, the power in the power element library Visual visual element model comprising the substation equipment;

[0011 ]步骤二:封装视频流中的电力设备对象; [0011] Step Two: an object packaged electric device in the video stream;

[0012]在变电站内对电力作业进行视频监控时,实时监测视频流中是否出现了可被电力视觉元素库中的电力视觉元模型所替代的电力设备,如果出现,则将该电力设备从视频流中删除,并在相应位置嵌入电力视觉元模型的索引码。 [0012] When video surveillance operations in the power substation, real-time monitoring whether a video stream can be replaced by a visual element model of visual element library power power electrical equipment, if there is, then the electrical equipment from the video stream removed, and the index code embedded in the visual element model of the power at the corresponding position.

[0013]步骤三:视频流中电力设备对象的解析; [0013] Step Three: parsing the power device object video stream;

[0014]检测视频流中是否包括电力视觉元模型,如果发现电力视觉元模型,则将其从视频流中抽取出来,并根据对应的索引码从电力视觉元素库中获得对应的电力视觉元模型; [0014] detecting whether the video stream includes a visual element model of power, if the visual element model of power found, then it is drawn out from the video stream, and the visual element model corresponding to obtain power from a power visual element library according to the corresponding index code ;

[0015]步骤四:重构视频流中电力设备对象; [0015] Step Four: the reconstructed video stream power device object;

[0016]从库中取出该电力视觉元模型的视频数据,然后将其聚合到原视频流中,从而重构出原始的视频流。 [0016] The video data retrieved from the library element model of the visual power, and then polymerizing it to the original video stream to reconstruct the original video stream.

[0017]通过实施本发明可以取得以下有益技术效果:将视频中已经识别出的视觉元模型,不再进行压缩编码操作,直接使用已有的压缩好的模型数据,因此大幅度降低了计算量,提高压缩速度;在进行传输时,对于视频流中包含的已有的视觉元模型,将其视频数据从流中剥离出来,而直接使用库中的唯一编码予以代替,这就大幅度降低了视频流的数据量,从而降低了对带宽的要求。 [0017] The following advantageous technical effects can be obtained by the embodiment of the present invention: a video has been identified visual element model, no compression coding operation, direct use of existing data compression good model, thus significantly reducing the amount of calculation , improve the compression rate; during transfer, for an existing model of visual element included in the video stream, which was stripped from the video data stream out directly using the unique code library to be replaced, which greatly reduces the data amount of the video stream, thereby reducing the bandwidth requirements.

具体实施方式 Detailed ways

[0018]为了便于本领域技术人员的理解,下面结合具体实施例对本发明作进一步的说明: [0018] In order to facilitate understanding of the skilled in the art, the following embodiments in conjunction with the specific embodiments of the present invention will be further described:

[0019]视频图像数据有极强的相关性,也就是说有大量的冗余信息。 [0019] video image data have a strong correlation, that is to say there is a lot of redundant information. 其中冗余信息可分为空域冗余信息和时域冗余信息,视频压缩的核心就是将数据中的冗余信息去掉。 Wherein the redundant information can be divided into spatial domain redundant information and the redundant information, the video compression is the core of the redundant information in the data removed. 本专利的核心思路是针对于电力作业现场的电力特征,抽取在各电压等级变电站中各类常用的电力设备,以此为基础建立电力设备的电力视觉元素库,将视频流中这类冗余的设备视频数据去掉,以此为基础视频流中电力设备对象的封装、传输、解析与重构,从而实现了具有电力特点的视频压缩,有效地降低了对站内视频传输网络的带宽要求。 The core idea of ​​this patent is directed to the power characteristic of the electric power operations at the scene, extracting the respective voltage substation commonly used in various types of electrical equipment, power equipment in order to establish the basis of the power of visual elements library, the video stream such redundancy the device video data removed, as a package, transmission, analysis and reconstruction of the power device object base video stream, thereby achieving a power characteristic of video compression, effectively reducing the bandwidth requirements for video transmission network station.

[0020]具体实施方式如下: [0020] DETAILED DESCRIPTION follows:

[0021] 1、变电站内设备的归类; [0021] 1, classified within the substation equipment;

[0022] 按照各电压等级的变电站的间隔特征,对110kV、220kV、500kV三个电压等级的变电站中的各类典型设备进行归类,共抽取出457个(可以根据需要选择数量)在电力施工过程中常用的电力设备,并根据其电压等级进行分类,建立层次分布模型。 [0022] intervals wherein the voltage level of the substation, to 110kV, 220kV, 500kV substation in three typical kinds of voltage levels to classify equipment were extracted 457 (can be selected according to the purpose) in the construction of power process commonly used in electrical equipment, and classified according to their voltage level, the establishment of hierarchical distribution model.

[0023] 2、变电站内设备视觉特征的采集; [0023] 2, the visual characteristics of the collected substation equipment;

[0024]针对上述的457个典型的常用电力设备,对其进行视觉采样。 [0024] 457 for the above-described typical conventional electrical equipment, visual be sampled.

[0025]为了确保视觉特征的全面性,采样过程中有以下要点: [0025] To ensure the comprehensiveness of the visual feature, the sampling process has the following points:

[0026] a.角度:采用3D环绕取样法,每间隔一度进行一次视觉取样,确保各角度视觉特征均包括; . [0026] a angle: The 3D surround sampling, at intervals of once for sampling a visual, the visual angle characteristics ensure that comprises;

[0027] b.白平衡:采样时采用阳光、阴天、室内白炽灯、室内荧光灯四类白平衡模式分别进行; . [0027] b WB: The sunny, cloudy, indoor incandescent, fluorescent indoor four respectively white balance mode sampling;

[0028] 3、电力视觉元素库的建立 [0028] 3, the establishment of the power of visual elements library

[0029]将上述的457个电力设备进行抽象,建立电力设备所对应的压缩好的电力视觉元模型,将类别、电压等级等基础信息与各自对应的视觉特征相关联;电力视觉元模型可为经过压缩后的图像数据。 [0029] The above-described power devices 457 to abstract electricity build good visual compression element model corresponding to the electrical equipment, the type, the voltage level corresponding to each other with basic information associated visual features; power element model may be visually after the compressed image data.

[0030] 4、视频流中电力设备对象的封装 [0030] 4, the video stream encapsulated electrical device object

[0031]在变电站内对电力作业进行视频监控时,编码模块自动采用图像匹配算法实时监测视频流中是否出现了与电力视觉元素库中匹配的电力设备,当发现匹配的设备时,监测所对应的视觉元模型的各项视觉特征是否与视频流中的对应元素相近,以确定是否存在可替代性。 When the [0031] video monitor power operations in the substation, the encoding module automatically uses image matching algorithm for real-time monitoring of video streams whether a power equipment with matching visual element library power, when a match is found the device, monitoring corresponding whether the visual features of the visual element model corresponding to similar elements of the video stream to determine whether there is irreplaceable.

[0032]当发现可替代时,立刻将该设备从视频流中删除,在相应位置嵌入电力视觉元模型的索引码,并附加光照等重构参数,从而封装出对象化的视频流。 [0032] Alternatively, when found, immediately remove the device from the video stream, the visual element is embedded model index code power at the corresponding position, and the additional light and other reconstruction parameters, to encapsulate the object-oriented video stream. 索引码用于在电力视觉元素库中检索对应的电力视觉元模型,可在建立电力视觉元素库的时候设置。 Power index code for visual power the visual element in the metamodel repository retrieves the corresponding, power may be provided at the time of establishment of the library of visual elements.

[0033]本步骤中图像匹配算法可采用现有技术中的图像匹配算法,视觉元模型的各项视觉特征是否与视频流中的对应元素相近的判断也可用现有技术的方法进行判断。 [0033] In this step, the image matching algorithm may employ image matching algorithm prior art, whether or not the visual characteristics of the visual element with the corresponding element model video stream may also be determined in similar prior art determination methods.

[0034] 5、视频流中电力设备对象的传输 [0034] 5, transmission of the video stream power device object

[0035]传输时,封装后的视频流将包括视频压缩编码和电力视觉元模型压缩编码两部分,统一使用RTP/RTCP协议进行传输。 [0035] When transmitting, the encapsulated video stream including video compression and power compression encoding visual element model in two parts, uniform use of RTP / RTCP protocol for transmission.

[0036] 6、视频流中电力设备对象的解析 [0036] 6, video stream parsing a power device object

[0037]解码端收到视频流后,检测其中是否包括电力视觉元模型,当发现电力视觉元模型后将其从视频流中抽取出来,根据索引码从库中获得对应的电力视觉元模型。 [0037] After receiving the decoded video stream, wherein the detection element comprises a visual model of power if, after the discovery that when extracting power from the visual element model video stream out, the power is obtained from the model corresponding visual element library according to the index code.

[0038] 7、视频流中电力设备对象的重构 [0038] 7, the reconstructed video stream object electrical equipment

[0039]解码端将从库中取出该电力视觉元模型的视频数据,同时参考光照等参数进行调节,然后将其聚合到原视频流中,从而重构出原始的视频流。 [0039] The decoder video data from the extracted library metamodel visual power, while the reference light and other parameters be adjusted, and then polymerizing it to the original video stream to reconstruct the original video stream.

[0040]以上所述仅为本发明的具体实施例,但本发明的技术特征并不局限于此,任何本领域的技术人员在本发明的领域内,所作的变化或修饰皆涵盖在本发明的专利范围之中。 [0040] The embodiments described above are only particular embodiments of the present invention, the technical features of the present invention is not limited thereto, and any person skilled in the art of the present invention, modifications or changes are made in the present invention encompasses among the scope of the patent.

Claims (3)

1.电力视觉元模型聚合压缩方法,其特征在于,包括如下步骤, 步骤一:建立电力视觉元素库,电力视觉元素库中包括变电站内设备的电力视觉元模型; 步骤二:封装视频流中的电力设备对象; 在变电站内对电力作业进行视频监控时,实时监测视频流中是否出现了可被电力视觉元素库中的电力视觉元模型所替代的电力设备,如果出现,则将该电力设备从视频流中删除,并在相应位置嵌入电力视觉元模型的索引码。 1. Power Vision metamodel polymerization compression method comprising the following steps, a step of: establishing a library of visual elements of power, the power of visual visual elements metamodel repository power substation equipment comprising; two steps: a package in the video stream power device object; when video surveillance operations in the power substation, real-time monitoring whether a video stream can be replaced by a visual element model of visual element library power power electrical equipment, if there is, then the electrical equipment from video stream removed, and the index code embedded in the visual element model of the power at the corresponding position.
2.如权利要求1所述的电力视觉元模型聚合压缩方法,其特征在于,还包括, 步骤三:视频流中电力设备对象的解析; 检测视频流中是否包括电力视觉元模型,如果发现电力视觉元模型,则将其从视频流中抽取出来,并根据对应的索引码从电力视觉元素库中获得对应的电力视觉元模型; 步骤四:重构视频流中电力设备对象; 从库中取出该电力视觉元模型的视频数据,然后将其聚合到原视频流中,从而重构出原始的视频流。 2. The power model of the visual element as claimed in claim 1, polymerization compression method, characterized by further comprising the step three: the video stream parsing a power device object; detecting whether the video stream includes a visual element model of power, if the power found visual element model, it is drawn out from the video stream, and the visual element model corresponding to obtain power from a power visual element library according to the corresponding index code; step four: reconstructed video stream power device object; retrieved from the library the visual element model video data power, which is then polymerized to the original video stream to reconstruct the original video stream.
3.如权利要求2所述的电力视觉元模型聚合压缩方法,其特征在于,步骤二与步骤三之间还包括视频流中电力设备通过RTP/RTCP协议进行传输的步骤。 Visual model of the power element of claim 2 compression method of polymerization, characterized in that the step 2 to the power of the video stream further comprises the step of transmitting device by the RTP / RTCP protocol among the three.
CN201510943357.8A 2015-12-16 2015-12-16 Power visual metamodel agglomeration compression method CN105578192A (en)

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