CN103051944B - Remote sensing satellite data mobile window display system and method - Google Patents
Remote sensing satellite data mobile window display system and method Download PDFInfo
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- CN103051944B CN103051944B CN201210566515.9A CN201210566515A CN103051944B CN 103051944 B CN103051944 B CN 103051944B CN 201210566515 A CN201210566515 A CN 201210566515A CN 103051944 B CN103051944 B CN 103051944B
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Abstract
The invention provides a kind of remote sensing satellite data mobile window display system, comprise data pre-processing unit, image-generating unit, streaming processing unit, Streaming Media release unit and data storage cell.Utilizing this system, the network user can being made can to check the Moving Window display of specified satellite data, fixed time, specific band compound mode and definition easily by logging in online when not installing any special-purpose software.
Description
Technical field
The present invention relates to remote sensing satellite technical field, more specifically, relate to a kind of remote sensing satellite data mobile window display system and method.
Background technology
Along with the fast development of remote sensing technology, remote sensing satellite data have played increasing effect in the development of the national economy and social development.As the pith of in remote sensing satellite receiving system, Moving Window display system is responsible for the Real-time Remote Sensing image display in receiving course, thus making reception staff can be evaluated the quality of reception of remote sensing satellite data by the Moving Window intuitive display of remote sensing images, the anomaly during Timeliness coverage receives also does emergency processing.
Traditional Moving Window display system is deployed in remote sensing satellite receiving station, is the single user supervisory control system towards reception staff, for the quality of reception of remote sensing satellite data receiver personnel interpretation data in remote sensing satellite DRP data reception process.Along with the fast development of remote sensing application, more scientific and technical personnel, data user wish to find area-of-interest and corresponding information in remotely-sensed data in strange land as early as possible by Moving Window display system.Due in the prior art, the Moving Window picture format disunity of different Moving Window display system, Moving Window display system needs the feature such as special equipment, special messenger's deployment, cause that traditional Moving Window display system is not easily disposed, poor universality, the feature that audient face is little, cannot adapt to the new demand of user.
Summary of the invention
In view of the above problems, an object of the present invention is to provide a kind of remote sensing satellite data mobile window display system and method, it can make network user's logging in online when not installing any special-purpose software check the Moving Window display of specified satellite data, fixed time, specific band compound mode and definition easily.
According to an aspect of the present invention, a kind of remote sensing satellite data mobile window display system is provided, comprise: data pre-processing unit, for the star ground interface according to reception remote sensing satellite data, preliminary treatment is carried out to the remote sensing satellite data received from remote sensing satellite, to obtain the original satellite data after frame synchronization, in the data structure of described original satellite data, at least comprise synchronization character, auxiliary parameter and view data; Image-generating unit, be connected with described data pre-processing unit, for utilizing Satellite ground interface, the original satellite extracting data exported from described data pre-processing unit goes out the auxiliary parameter of view data and correspondence, and Formatting Output is carried out, to obtain image data file to extracted view data and auxiliary parameter; Streaming processing unit, is connected with described streaming processing unit, carries out streaming process for the image data file obtained described image-generating unit, to generate streaming media video file; And Streaming Media release unit, be connected with described streaming processing unit, for obtaining the streaming media video file that described streaming processing unit generates, and via network by this streaming media video file distribution to user, thus provide Moving Window to show with stream media mode to user.
In one or more examples in above-mentioned, described remote sensing satellite data mobile window display system can also comprise: data storage cell, with described data pre-processing unit, described image-generating unit, described streaming processing unit is connected with described Streaming Media release unit, for storing the satellite data and described data pre-processing unit that receive from remote sensing satellite, the data that described image-generating unit and described streaming processing unit generate, and described data pre-processing unit, image-generating unit, streaming processing unit and Streaming Media release unit are also configured to from described data storage cell, obtain data and carry out respective handling.
In one or more examples in above-mentioned, described image-generating unit is also configured to generate the image data file metamessage corresponding with described image data file, and described image data file metamessage at least comprises view data memory location, the satellite name that view data is corresponding, orbit number, the imaging beginning and ending time, wave band number, total line number of each wave band, the line length of each wave band, and described image data file metamessage and corresponding image data file are stored in described data storage cell together, and described streaming processing unit is also configured to according to image data file metamessage and predetermined streaming media video file parameters, generate the streaming media video file meta-information corresponding with described streaming media video file, described streaming media video file meta-information at least comprises streaming media video file storage location, streaming media video size, the satellite name that streaming media video file is corresponding, orbit number, the imaging beginning and ending time, video frame rate and resolution, and described streaming media video file meta-information is stored in described data storage cell together with corresponding streaming media video file.Described predetermined streaming media video file parameters can comprise video frame rate, resolution etc.Described predetermined streaming media video file parameters can be included in Streaming Media Processing tasks, as the task parameters of Streaming Media Processing tasks.
In one or more examples in above-mentioned, described Streaming Media release unit also comprises: on-demand device, for the Moving Window display service parameter information selected according to user, generates the order request comprising this Moving Window display service parameter information; Streaming media video file acquisition device, is connected with described on-demand device, for the order request generated according to on-demand device, obtains the streaming media video file corresponding with this order request; And streaming media video file distribution device, be connected with described streaming media video file acquisition device, for after getting corresponding streaming media video file, this streaming media video file distribution carried out Moving Window display to user.
In one or more examples in above-mentioned, described Moving Window display service parameter information at least comprises satellite name, orbit number, displaying time section, band combination mode, video frame rate and resolution.
In one or more examples in above-mentioned, described streaming media video file acquisition device comprises: streaming media video file search device, be connected with described on-demand device, for the Moving Window display service parameter information comprised in the order request that generates according to on-demand device, in described data storage cell, search for corresponding streaming media video file, and image data file searcher, be connected with described streaming media video file search device, for when not searching corresponding streaming media video file in described data storage cell, corresponding image data file is searched in described data storage cell, wherein, described image data file searcher is also configured to after search corresponding image data file in described data storage cell, the Moving Window display service parameter information being sent to by this image data file described streaming processing unit to select according to user generates streaming media video file, described streaming processing unit is issued returning to described streaming media video file distribution device after generated streaming media video file, and do not search corresponding image data file in described data storage cell after, issue instruction to user and want the non-existent indication information of the satellite data of program request.
According to an aspect of the present invention, provide a kind of remote sensing satellite data mobile window display packing, described method is performed by above-mentioned remote sensing satellite data mobile window display system, described method comprises: according to the star ground interface receiving remote sensing satellite data, preliminary treatment is carried out to the remote sensing satellite data received from remote sensing satellite, to obtain the original satellite data after frame synchronization, in the data structure of described original satellite data, at least comprise synchronization character, auxiliary parameter and view data; Utilize Satellite ground interface, the original satellite extracting data exported from described data pre-processing unit goes out the auxiliary parameter of view data and correspondence, and carries out Formatting Output, to obtain image data file to extracted view data and auxiliary parameter; Streaming process is carried out to the image data file that described image-generating unit obtains, to generate streaming media video file; And the streaming media video file distribution to be generated by described streaming processing unit via network is to user, thus Moving Window is provided to show with stream media mode to user.
In one or more examples in above-mentioned, described remote sensing satellite data mobile window display system also comprises data storage cell, described method comprises: the data that the satellite data received from remote sensing satellite and described data pre-processing unit, described image-generating unit and described streaming processing unit generate be stored in described data storage cell, and described method also comprises: described data pre-processing unit, image-generating unit, streaming processing unit and Streaming Media release unit obtain data and carry out respective handling from described data storage cell.
In one or more examples in above-mentioned, also comprise when generating described image data file: generate the image data file metamessage corresponding with described image data file, described image data file metamessage at least comprises view data memory location, the satellite name that view data is corresponding, orbit number, the imaging beginning and ending time, wave band number, total line number of each wave band, the line length of each wave band, and described image data file metamessage and corresponding image data file are stored in described data storage cell together, and also comprise when generating streaming media video file: according to image data file metamessage and predetermined streaming media video file parameters, generate the streaming media video file meta-information corresponding with described streaming media video file, described streaming media video file meta-information at least comprises streaming media video file storage location, streaming media video size, the satellite name that streaming media video file is corresponding, orbit number, the imaging beginning and ending time, video frame rate and resolution, and described streaming media video file meta-information is stored in described data storage cell together with corresponding streaming media video file.
In one or more examples in above-mentioned, described method also comprises: the Moving Window display service parameter information selected according to user, generates the order request comprising this Moving Window display service parameter information; According to the order request that on-demand device generates, obtain the streaming media video file corresponding with this order request; And after getting corresponding streaming media video file, this streaming media video file distribution is carried out Moving Window display to user.
In one or more examples in above-mentioned, described Moving Window display service parameter information at least comprises satellite name, orbit number, displaying time section, band combination mode, video frame rate and resolution.
In one or more examples in above-mentioned, according to the order request that on-demand device generates, obtaining the streaming media video file corresponding with this order request to comprise: the Moving Window according to comprising in the order request that on-demand device generates shows service parameter information, in described data storage cell, searching for corresponding streaming media video file; When not searching corresponding streaming media video file in described data storage cell, in described data storage cell, search for corresponding image data file; And search corresponding image data file in described data storage cell after, the Moving Window display service parameter information being sent to by this image data file described streaming processing unit to select according to user generates streaming media video file and issues, or do not search corresponding image data file in described data storage cell after, return instruction and want the non-existent indication information of the satellite data of program request.
Utilize above-mentioned remote sensing satellite data mobile window display system and method, can be any user that can be connected to remote sensing satellite data mobile window display system by network, the Moving Window display of specified satellite data, fixed time, specific band compound mode and definition is provided, and roll display is carried out to satellite data and auxiliary parameter.
In order to realize above-mentioned and relevant object, will describe in detail and the feature particularly pointed out in the claims after one or more aspect of the present invention comprises.Explanation below and accompanying drawing describe some illustrative aspects of the present invention in detail.But what these aspects indicated is only some modes that can use in the various modes of principle of the present invention.In addition, the present invention is intended to comprise all these aspects and their equivalent.
Accompanying drawing explanation
According to following detailed description of carrying out with reference to accompanying drawing, above and other object of the present invention, feature and advantage will become more apparent.In the accompanying drawings:
Fig. 1 shows the block diagram according to remote sensing satellite data mobile window display system of the present invention;
Fig. 2 shows the schematic diagram of an example of the frame structure of original satellite data;
Fig. 3 shows the schematic diagram of the row structure of single band data;
Fig. 4 shows the schematic flow sheet that single band image data file generates streaming media video file;
Fig. 5 shows the schematic flow sheet of multi-band image Generating Data File streaming media video file;
Fig. 6 shows the schematic flow sheet that streaming media server provides Moving Window to show;
Fig. 7 shows the flow chart of the remote sensing satellite data mobile window display packing according to the embodiment of the present invention;
Fig. 8 shows the flow chart of remote sensing satellite data mobile window display packing according to another embodiment of the present invention; With
Fig. 9 shows the flow chart of an example of the acquisition files in stream media in Fig. 8.
Label identical in all of the figs indicates similar or corresponding feature or function.
Embodiment
Various aspects of the present disclosure are described below.It is to be understood that instruction herein can with varied form imbody, and in this article disclosed any concrete structure, function or both be only representational.Based on instruction herein, those skilled in the art are it is to be understood that an aspect disclosed herein can realize independent of any other side, and the two or more aspects in these aspects can combine according to various mode.Such as, the aspect of any number described in this paper can be used, realize system or hands-on approach.In addition, other structure, function or except one or more aspect described in this paper or be not the 26S Proteasome Structure and Function of one or more aspect described in this paper can be used, realize this system or put into practice this method.In addition, any aspect described herein can comprise at least one element of claim.
Illustrate according to embodiments of the invention below in conjunction with accompanying drawing.
Fig. 1 shows the block diagram according to remote sensing satellite data mobile window display system 100 of the present invention.
As shown in Figure 1, remote sensing satellite data mobile window display system 100 comprises data pre-processing unit 110, image-generating unit 120, streaming processing unit 130, Streaming Media release unit 140 and data storage cell 150.
In an example of the present invention, data storage cell 150 is connected with Streaming Media release unit 140 with data pre-processing unit 110, image-generating unit 120, streaming processing unit 130, for storing the data of satellite data and described data pre-processing unit, described image-generating unit and the described streaming processing unit generation received from remote sensing satellite.Described data storage cell 150 can be various types of memory device, comprises various volatile memory or nonvolatile memory, such as hard disk, CD-ROM etc.
Data pre-processing unit 110, image-generating unit 120, streaming processing unit 130 and Streaming Media release unit 140 are also configured to from data storage cell 150, obtain data and carry out respective handling.
Data pre-processing unit 120 is for the star ground interface according to reception remote sensing satellite data, preliminary treatment is carried out to the remote sensing satellite data received from remote sensing satellite, to obtain the original satellite data after frame synchronization, in the data structure of described original satellite data, at least comprise synchronization character, auxiliary parameter and view data.The star ground interface of described satellite data refers to the formal definition of satellite down-link data, this definition comprises the definition of satellite down-link data frame structure, the such as length of each field of initial data, type and implication, with the coded system of clock star ground interface definition downlink data so that ground system is decoded to satellite down-link data according to Satellite ground interface.The star ground interface of different satellite is different, and therefore ground system is according to the star ground interface definition of concrete satellite, resolves value and the implication of each field in satellite initial data, extracts view data and auxiliary parameter.Such as, the length of definition satellite initial data frame is 1024 bytes, wherein the 0th to the 3rd byte representation frame alignment word, and its value is fixed as 0x1ACFFC1D; Frame the 4th is to the 7th byte representation frame number, and type is the INT type integer adopting LITTLEENDIAN syllable sequence, and frame number counts from zero; Etc..
Remote sensing satellite data receive from remote sensing satellite.Usually, after receiving remote sensing satellite initial data from remote sensing satellite, be first stored in data storage cell 150.Then, after remote sensing satellite initial data is written to data storage cell 150, data pre-processing unit 110 reads this remote sensing satellite initial data from data storage cell 150 and carries out preliminary treatment, to obtain the original satellite data after frame synchronization.Such as, described preliminary treatment can be frame synchronization process, such as, carry out frame synchronization process according to frame alignment word by bit, obtains remote sensing satellite initial data frame.In addition, after described preliminary treatment can also be included in and obtain remote sensing satellite initial data frame, according to Satellite ground interface, necessary decoding process is carried out to Frame respective field, such as PN descrambling, CRC check, RS correction process, thus the remote sensing satellite initial data after obtaining real, frame synchronization.
Usually, the remote sensing satellite initial data passed from remote sensing satellite is that binary system bit flows, and be that flag bit area separates each Frame with frame alignment word, Frame is the base unit that satellite passes down.Fig. 2 shows the schematic diagram of an example of the frame structure of original satellite data.As shown in Figure 2, the frame structure of original satellite data comprises synchronization character field, auxiliary parameter field and view data field.Described synchronization character field is used for storage frame synchronization character, and this frame alignment word is the mark that Frame starts.According to the size of frame length, synchronization character field selects different length, is generally 4 bytes or 8 bytes.Auxiliary parameter can comprise frame counter, satellite mode, the relevant information such as the attitude of satellite and atmospheric conditions.View data refers to the remote sensing image data obtained from remote sensing satellite.For different remote sensing satellites, the view data in every frame can represent different view data.Such as, for SPOT satellite, the view data in every frame represents a line view data.And for Terra satellite, what the view data in every frame represented is one section of view data.Described view data, auxiliary parameter are the Data Sources of Streaming Media to be released.
In addition, if the satellite initial data received from remote sensing satellite has carried out forward coding, then described data pre-processing unit can also carry out forward coding decoding to satellite data, then directly carries out frame synchronization process according to frame alignment word by bit, obtains remote sensing satellite initial data frame.
Image-generating unit 120 is connected with data pre-processing unit 110.After as above obtaining the original satellite data of remote sensing satellite, image-generating unit 120 utilizes Satellite ground interface, the original satellite extracting data exported from described data pre-processing unit goes out the auxiliary parameter of view data and correspondence, and Formatting Output is carried out to extracted view data and auxiliary parameter, thus obtain image data file.Such as, image-generating unit 120, according to Satellite ground interface, reads each band image data of satellite and corresponding auxiliary parameter, then carries out Formatting Output to extracted satellite image data and auxiliary parameter, thus obtain image data file.
In addition, conveniently in subsequent treatment, conveniently can obtain certain wave band, the view data of certain line number and auxiliary parameter, generated image data file can also be stored in the data store, and under being stored in same catalogue.The name of this catalogue can comprise satellite name, data receiver beginning and ending time, orbit number information usually, such as " S4_20120701041235121_20120701042210227_001201 ", what this directory name represented is comprise under this catalogue be 1 day 04 July of 2012 UTC time time 12 points within 35.121 seconds, start, 22 point of 10.227 SPOT4 dependent image data terminated during 1 day 04 July in 2012.In addition, can also comprise each band image file of satellite under this catalogue, the satellite image subrane of auxiliary parameter file and correspondence exports.The view data called after " wave band .img " of each wave band, the such as image data file of B1.img representation of file wave band 1.In single band image file, view data arranges line by line according to time sequencing, and each row of data comprises supplementary (line number, line length, timing code and latitude and longitude information) and the view data of this row, and the row structure of single band image file as shown in Figure 3.
In addition, when image data generating file, image-generating unit 120 can also generate corresponding image data file metamessage, this image data file metamessage at least comprises view data memory location, the satellite name that view data is corresponding, orbit number, the imaging beginning and ending time, wave band number, total line number of each wave band, the line length of each wave band, to save contents path for preserving view data, the satellite name that view data is corresponding, orbit number, the imaging beginning and ending time, wave band number, total line number of each wave band, the metamessages such as the line length of each wave band, use for during user's search in the future.Generated image data file and corresponding image data file metamessage are deposited in data storage cell 150 by image-generating unit 120.
Streaming processing unit 130 is connected with image-generating unit 120.After image-generating unit 120 image data generating file, streaming processing unit 130 carries out streaming process to the image data file that described image-generating unit obtains, to generate streaming media video file.
Streaming processing unit 130 is responsible for carrying out streaming process to image data file, thus generates streaming media video file.Such as, streaming processing unit 130 can extract the auxiliary parameter in image data file, such as line number, timing code, latitude and longitude information.Then, according to these information, the meta-information file of combining image data file, determines rapidly to need start-stop line number to be processed (the satellite name of specifying according to streaming, orbit number, beginning and ending time).
In addition, streaming processing unit 130 according to image data file metamessage and predetermined streaming media video file parameters, can also generate corresponding streaming media video file meta-information.Described streaming media video file meta-information at least comprises streaming media video file storage location, streaming media video size, satellite name that streaming media video file is corresponding, orbit number, imaging beginning and ending time, video frame rate and resolution.Described predetermined streaming media video file parameters can comprise video frame rate, resolution etc.Described predetermined streaming media video file parameters can be included in Streaming Media Processing tasks, as the task parameters of Streaming Media Processing tasks.
In order to realize the streaming media video file of roll display mode, streaming processing unit 130 needs to carry out streaming process to single band or multi-band image data file and auxiliary parameter.Image data file handled by streaming processing unit 130 can be the image data file existed in data storage cell 150, also can be non-existent image data file in data storage cell 150.
If streaming processing unit 130 needs image file to be processed to be non-existent new image data file in data storage cell 150, then streaming processing unit 130 needs according to remote sensing satellite data mobile window display system is this satellite prefabricated time period, band combination mode, video frame rate and display resolution, carries out streaming to this new image data file.Such as, suppose remote sensing satellite data mobile window display system to satellite A prefabricated be whole orbital image data, the band combination only having wave band 1, video frame rate be 25fps, video definition is SD (640*480 resolution), and suppose that the streaming media video file generated is flv format stream media video file, then can adopt streaming processing procedure as shown in Figure 4.Described band combination mode comprises following implication: the wave band number that video packets contains, 1 or 3; If 1, represent that this video is black and white video, only comprise the gray level image of a wave band; If 3, represent that this video is pseudo color video, utilize RGB image-forming principle, select three wave bands of satellite data corresponding R/G/B formation pcolor picture respectively.
As shown in Figure 4, first, grayscale image sequence is generated according to single band (wave band 1) image file.Wherein, 25fp represents that each second, video needed 25 two field pictures, and namely every two field picture time interval is 40ms, and single-frame images size is 640*480.For simplicity, suppose that single band image file unicursal graph is 2560 pixels as data length unification, between two row, the time difference is 40ms.When playing to make the video file generated based on above-mentioned single band image file synthetic image frame, can analog satellite image line scrolling display, carry out following process: in the grayscale image sequence of video first frame, for the 1st walking to the 479th row from top to bottom, fill black pixel point, for the 480th row, fill the greyscale image data of single band image file the 1st row after falling 4 sampling.For the grayscale image sequence of video second frame, it is then the state after the picture roll display after 40ms, be in this example, 1st walking in the 478th row and filling black pixel point from top to bottom, in the 479th row, fill the greyscale image data of single band image file the 1st row after falling 4 sampling, in the 480th row, fill the greyscale image data of single band image file the 2nd row after falling 4 sampling.By that analogy, until the grayscale image sequence of last frame, in the end in a frame, 1st row is the greyscale image data that the N-479 of single band image file after falling 4 sampling is capable from top to bottom, m is capable is the greyscale image data that the N-480-m of single band image file after falling 4 sampling is capable, and the 480th row is the greyscale image data that single band image file N-480 after falling 4 sampling is capable.Process described here is the process for single-range black and white video.
Then, generated grayscale image sequence is converted to YUV420p sequence, then becomes flv file to export YUV420p sequential coding.Above-mentioned conversion and coded treatment can utilize FFMpegAPI storehouse to realize, wherein sws_scale function can realize RGB or greyscale image transitions is YUV420 sequence, and the flv encoder in libavcodec storehouse can realize YUV420 sequential coding to become flv video file.The resolution of video and frame rate etc. can utilize the parameter such as wide height, frame per second of AVCodecContext to arrange.In addition, in transfer process, auxiliary parameter (information such as imaging time, longitude and latitude) occurs in video with captions form.
Then, based on predetermined streaming media video file parameters, such as video storage position, video size, the information such as satellite name, orbit number, beginning and ending time, frame rate, resolution that the Moving Window image that video shows is corresponding, generates the video element message file that this streaming media video file is corresponding.Here, described predetermined streaming media video file parameters can be included in the Streaming Media Processing tasks that user pre-defines or input, as the task parameters of Streaming Media Processing tasks.
Finally, by generated flv streaming media video file and corresponding video element message file stored in data storage cell 150.
If streaming processing unit 130 needs image file to be processed to be non-existent new image data file in data storage cell 150, such as, when receiving the order request that user sends, when there is not the corresponding streaming media video file image data file that still existence is corresponding in data storage cell 150, then streaming processing unit 130 is according to the Moving Window selected by the user display service parameter information comprised in order request, the time period that such as user specifies, band combination mode, video frame rate and video definition, streaming process is carried out to image data file.Such as, assuming that the video mode of satellite B that user specifies is: the data of 31 points of 12.211 second these time periods during 24 points of 21.211 seconds to 2012 on July 1,04 during 1 day 04 July of 2012 UTC time, to the band combination pattern of wave band 1,2,3 difference corresponding R, G, B, video frame rate is 25fps, video definition is SD (640*480 resolution), user's fixed time section to should the line K of view data to the capable data of M, then the streaming handling process under this designated mode is as shown in Figure 5.
First, the image file of the corresponding time period of the R/G/B of the correspondence of three wave band B1/B2/B3 is utilized to generate grayscale image sequence respectively.Wherein, 25fps represents that each second, video needed 25 two field pictures, and namely every two field picture time interval is 40ms, and single-frame images size is 640*480.For simplicity, suppose that single band image file unicursal graph is 2560 pixels as data length unification, between two row, the time difference is 40ms.When playing to make the video file generated based on above-mentioned single band image file synthetic image frame, can analog satellite image line scrolling display, carry out following process: at the pcolor of video first frame as in sequence, 1st walk to the 479th row filling black pixel point from top to bottom, the 480th row fills the pcolor of the capable generation of wave band B1/B2/B3 image file K+1 after falling 4 sampling as data.In the grayscale image sequence of video second frame, fill the state after the picture roll display after 40ms, be in this example, 1st walk to the 478th row filling black pixel point from top to bottom, 479th row fills the pcolor of the capable generation of wave band B1/B2/B3 image file K+1 after falling 4 sampling as data, and the 480th row fills the pcolor of the capable generation of wave band B1/B2/B3 image file K+2 after falling 4 sampling as data.By that analogy, until the grayscale image sequence of last frame.In the end in a frame, 1st row is filled according to falling the pcolor of the capable generation of wave band B1/B2/B3 image file M-479 after 4 sampling as data from top to bottom, the capable filling of m is according to the pcolor of the capable generation of wave band B1/B2/B3 image file M-480-m of falling after 4 sampling as data, and the 480th row fills the greyscale image data according to the capable generation of wave band B1/B2/B3 image file N-480 of falling after 4 sampling.
Then, generated RGB pcolor is converted to YUV420p sequence as sequence, and then becomes flv file to export YUV420p sequential coding.Above-mentioned conversion and coded treatment can utilize FFMpegAPI storehouse to realize, wherein sws_scale function can realize RGB or greyscale image transitions is YUV420 sequence, and the flv encoder in libavcodec storehouse can realize YUV420 sequential coding to become flv video file.The resolution of video and frame rate etc. can utilize the parameter such as wide height, frame per second of AVCodecContext to arrange.In addition, in transfer process, auxiliary parameter (information such as imaging time, longitude and latitude) occurs in video with captions form.
Then, based on predetermined streaming media video file parameters, such as video storage position, video size, the information such as satellite name, orbit number, beginning and ending time, frame rate, resolution that the Moving Window image that video shows is corresponding, generates the video element message file that this streaming media video file is corresponding.
Finally, by generated flv streaming media video file and corresponding video element message file stored in data storage cell 150.
Streaming Media release unit 140 is connected with streaming processing unit 130.After as above generating streaming media video file, Streaming Media release unit 140 can obtain the streaming media video file that described streaming processing unit 130 generates, and via network by this streaming media video file distribution to user, thus provide Moving Window to show with stream media mode to user.
In an example of the present invention, Streaming Media release unit 140 can after streaming processing unit 130 generates streaming media video file, obtain the streaming media video file that described streaming processing unit 130 generates at once, and via network by this streaming media video file distribution to user, thus provide Moving Window to show with stream media mode to user.In this manner, generated streaming media video file push can be carried out Moving Window display to user, and not need user to propose program request demand.
In another example of the present invention, Streaming Media release unit 140 can also, based on the program request demand of user, provide Moving Window to show service with the form of streaming media server to user.In this case, Streaming Media release unit 140 can also comprise: on-demand device (not shown), for the Moving Window display service parameter information selected according to user, generates the order request comprising this Moving Window display service parameter information; Streaming media video file acquisition device (not shown), is connected with described on-demand device, for the order request generated according to on-demand device, obtains the streaming media video file corresponding with this order request; And streaming media video file distribution device (not shown), be connected with described streaming media video file acquisition device, for after getting corresponding streaming media video file, this streaming media video file distribution carried out Moving Window display to user.In one or more example of the present invention, described Moving Window display service parameter information at least comprises satellite name, orbit number, displaying time section, band combination mode, video frame rate and resolution.
In addition, described streaming media video file acquisition device can also comprise: streaming media video file search device, for the Moving Window display service parameter information comprised in the order request that generates according to on-demand device, in described data storage cell, search for corresponding streaming media video file, and image data file searcher, be connected with described streaming media video file search device, during for not searching corresponding streaming media video file in described data storage cell, corresponding image data file is searched in described data storage cell, wherein, after described image data file searcher is also configured to search corresponding image data file in described data storage cell, the Moving Window display service parameter information being sent to by this image data file described streaming processing unit to select according to user generates streaming media video file, described streaming processing unit is issued returning to described streaming media video file distribution device after generated streaming media video file, and do not search corresponding image data file in described data storage cell after, issue instruction to user and want the non-existent indication information of the satellite data of program request.
After obtaining corresponding streaming media video file, described streaming media video file distribution device can utilize flv streaming media server to issue this video, thus realizes the display of the Moving Window of specified satellite data.
Stream media system core based on flv is F1ashMediaServer (FMS) streaming media server, and the workflow of this server is see Fig. 6.FMS is made up of two parts: server and F1ash player.The application program of server end has oneself independently catalogue on FMS, and service end script file and other resources, client intercoms mutually with the proprietary protocol RTMP agreement of server by Adobe.Flash client is connected by RTMP agreement and FMS, so just forms stable data flow at the client and server of Flash.Certainly, usually say that swf embeds in a browser, so first client loads video by http protocol request WebServer, WebServer is by the request of http protocol customer in response and Flash script is sent to client.Server end comprises two servers: WebServer and FlashMediaServer, WebServer are responsible for Flash script to be sent to client, and customer in response request also provides Web service; FMS is responsible for storing and media stream, when client browser request play store data time, it just starts a thread is customer service, and with RTMP protocol transmission Streaming Media.Client realizes primarily of the SWF player of html page and embedding, and its Main Function is browsing page and watching video.
Above with reference to Fig. 1 to Fig. 6, remote sensing satellite data mobile window display system according to the present invention is illustrated.Here be noted that above-mentioned example is only exemplary, instead of restrictive.Various amendment and replacement can also be carried out to above-described embodiment.Such as, in the above example, remote sensing satellite data mobile window display system is shown as and comprises data storage cell, but in other example of the present invention, remote sensing satellite data mobile window display system also can not comprise data storage cell.
In addition, data pre-processing unit, streaming processing unit and Streaming Media release unit in the remote sensing satellite data mobile window display system of above-described embodiment and constituent components thereof can utilize processor and the memory that is connected with processor realizes, the memory of the program such as utilizing general processor (such as, CPU or MCU) and include the corresponding function that can realize above-mentioned unit realizes.Or, data pre-processing unit, streaming processing unit and Streaming Media release unit in the remote sensing satellite data mobile window display system of above-described embodiment and constituent components thereof also can realize as a unit, such as utilize ASIC element or FPGA element to realize.
Below with reference to Fig. 7 to Fig. 8, remote sensing satellite data mobile window display packing according to the present invention is described.
Fig. 7 shows the flow chart of the remote sensing satellite data mobile window display packing according to the embodiment of the present invention.
As shown in Figure 7, first, in step S710, according to the star ground interface receiving remote sensing satellite data, preliminary treatment is carried out to the remote sensing satellite data received from remote sensing satellite, to obtain the original satellite data after frame synchronization, in the data structure of described original satellite data, at least comprise synchronization character, auxiliary parameter and view data.
Then, in step S720, utilize Satellite ground interface, the original satellite extracting data exported from described data pre-processing unit goes out the auxiliary parameter of view data and correspondence, and Formatting Output is carried out, to obtain image data file to extracted view data and auxiliary parameter.
After obtaining image data file, in step S730, streaming process is carried out to the image data file that described image-generating unit obtains, to generate streaming media video file.
Then, in step S740, the streaming media video file distribution generated by described streaming processing unit via network to user, thus provides Moving Window to show with stream media mode to user.
Fig. 8 shows the flow chart of remote sensing satellite data mobile window display packing according to another embodiment of the present invention.
As shown in Figure 8, first, in step S810, according to the star ground interface receiving remote sensing satellite data, preliminary treatment is carried out to the remote sensing satellite data received from remote sensing satellite, to obtain the original satellite data after frame synchronization, in the data structure of described original satellite data, at least comprise synchronization character, auxiliary parameter and view data.
Then, in step S820, utilize Satellite ground interface, the original satellite extracting data exported from described data pre-processing unit goes out the auxiliary parameter of view data and correspondence, and Formatting Output is carried out to extracted view data and auxiliary parameter, to obtain image data file and image data file metamessage, and obtained image data file and image data file metamessage are stored in the data store.
After obtaining image data file, in step S830, the image data file obtain described image-generating unit and auxiliary parameter carry out streaming process, to generate streaming media video file and corresponding streaming media video file meta-information, and obtained streaming media video file and corresponding streaming media video file meta-information are stored in the data store.
Then, in step S840, obtain the streaming media video file of user program request, and via network by this streaming media video file distribution to user, thus provide Moving Window to show with stream media mode to user.Fig. 9 shows the specific implementation process of an example of above-mentioned steps S840.
As shown in Figure 9, first, in step S841, according to the Moving Window display service parameter information that user selectes, the order request comprising this Moving Window display service parameter information is generated.Then, in step S843, according to the Moving Window display service parameter information comprised in the order request that on-demand device generates, search in described data storage cell and whether there is corresponding streaming media video file.Described Moving Window display service parameter information at least comprises satellite name, orbit number, displaying time section, band combination mode, video frame rate and resolution.
If there is corresponding streaming media video file, then obtain the streaming media video file of this correspondence, and via network by this streaming media video file distribution to user, thus provide Moving Window to show with stream media mode to user.
If when not searching corresponding streaming media video file in described data storage cell, then in step S845, in described data storage cell, search for corresponding image data file.If search corresponding image data file in described data storage cell, then in step S849, this image data file is sent to described streaming processing unit, the Moving Window selected according to user by described streaming processing unit shows service parameter information, generates streaming media video file based on this image data file.Then, generated streaming media video file is returned to Streaming Media release unit 140 via Web Publishing to user by streaming processing unit 130.
If do not search corresponding image data file in described data storage cell after, then in step S847, return instruction and want the non-existent indication information of the satellite data of program request.
Utilize remote sensing satellite data mobile window display system of the present invention and method, user carries out Moving Window display demand to satellite data can be met, solve traditional Moving Window display poor universality, dispose complicated, that audient face is little shortcoming.In addition, can also to any user that can be connected to Moving Window display unit, the Moving Window display of specified satellite data, fixed time, specific band compound mode and definition is provided, roll display is carried out to satellite data and auxiliary parameter.
In addition, the computer program performed by CPU can also be implemented as according to method of the present invention.When this computer program is performed by CPU, perform the above-mentioned functions limited in method of the present invention.
In addition, said method step and system unit also can utilize controller (such as, processor) and realize for storing the computer readable storage devices making controller realize the computer program of above-mentioned steps or Elementary Function.
Although disclosed content shows exemplary embodiment of the present invention above, it should be noted that under the prerequisite not deviating from the scope of the present invention that claim limits, can multiple change and amendment be carried out.Need not perform with any particular order according to the function of the claim to a method of inventive embodiments described herein, step and/or action.In addition, although element of the present invention can, with individual formal description or requirement, also it is contemplated that multiple, be odd number unless explicitly limited.
Although describe each embodiment according to the present invention above with reference to figure to be described, it will be appreciated by those skilled in the art that each embodiment that the invention described above is proposed, various improvement can also be made on the basis not departing from content of the present invention.Therefore, protection scope of the present invention should be determined by the content of appending claims.
Claims (12)
1. a remote sensing satellite data mobile window display system, comprising:
Data pre-processing unit, for the star ground interface according to reception remote sensing satellite data, preliminary treatment is carried out to the remote sensing satellite data received from remote sensing satellite, to obtain the original satellite data after frame synchronization, in the data structure of described original satellite data, at least comprise synchronization character, auxiliary parameter and view data;
Image-generating unit, be connected with described data pre-processing unit, for utilizing Satellite ground interface, the original satellite extracting data exported from described data pre-processing unit goes out the auxiliary parameter of view data and correspondence, and Formatting Output is carried out, to obtain image data file to extracted view data and auxiliary parameter;
Streaming processing unit, is connected with described image-generating unit, carries out streaming process for the image data file obtained described image-generating unit, to generate streaming media video file; And
Streaming Media release unit, be connected with described streaming processing unit, for obtaining the streaming media video file that described streaming processing unit generates, and via network by this streaming media video file distribution to user, thus provide Moving Window to show with stream media mode to user; Wherein, described Streaming Media release unit comprises on-demand device, for the Moving Window display service parameter information selected according to user, generates the order request comprising this Moving Window display service parameter information.
2. remote sensing satellite data mobile window display system as claimed in claim 1, also comprises:
Data storage cell, be connected with described Streaming Media release unit with described data pre-processing unit, described image-generating unit, described streaming processing unit, for storing the data of satellite data and described data pre-processing unit, described image-generating unit and the described streaming processing unit generation received from remote sensing satellite, and
Described data pre-processing unit, image-generating unit, streaming processing unit and Streaming Media release unit are also configured to from described data storage cell, obtain data and carry out respective handling.
3. remote sensing satellite data mobile window display system as claimed in claim 2, wherein, described image-generating unit is also configured to generate the image data file metamessage corresponding with described image data file, described image data file metamessage at least comprises view data memory location, the satellite name that view data is corresponding, orbit number, the imaging beginning and ending time, wave band number, total line number of each wave band, the line length of each wave band, and described image data file metamessage and corresponding image data file are stored in described data storage cell together, and described streaming processing unit is also configured to according to image data file metamessage and predetermined streaming media video file parameters, generate the streaming media video file meta-information corresponding with described streaming media video file, described streaming media video file meta-information at least comprises streaming media video file storage location, streaming media video size, the satellite name that streaming media video file is corresponding, orbit number, the imaging beginning and ending time, video frame rate and resolution, and described streaming media video file meta-information is stored in described data storage cell together with corresponding streaming media video file.
4. remote sensing satellite data mobile window display system as claimed in claim 3, wherein, described Streaming Media release unit also comprises:
Streaming media video file acquisition device, is connected with described on-demand device, for the order request generated according to on-demand device, obtains the streaming media video file corresponding with this order request; And
Streaming media video file distribution device, is connected with described streaming media video file acquisition device, for after getting corresponding streaming media video file, this streaming media video file distribution is carried out Moving Window display to user.
5. remote sensing satellite data mobile window display system as claimed in claim 4, wherein, described Moving Window display service parameter information at least comprises satellite name, orbit number, displaying time section, band combination mode, video frame rate and resolution.
6. remote sensing satellite data mobile window display system as claimed in claim 4, wherein, described streaming media video file acquisition device comprises:
Streaming media video file search device, is connected with described on-demand device, for the Moving Window display service parameter information comprised in the order request that generates according to on-demand device, searches for corresponding streaming media video file in described data storage cell; And
Image data file searcher, is connected with described streaming media video file search device, for when not searching corresponding streaming media video file in described data storage cell, searches for corresponding image data file in described data storage cell,
Wherein, this image data file is sent to described streaming processing unit after being also configured to search corresponding image data file in described data storage cell by described image data file searcher,
After described streaming processing unit is configured to search corresponding image data file in described data storage cell, the Moving Window display service parameter information selected according to user, generate streaming media video file based on received image data file, generated streaming media video file is returned to described streaming media video file distribution device and issue; And do not search corresponding image data file in described data storage cell after, issue instruction to user and want the non-existent indication information of the satellite data of program request.
7. a remote sensing satellite data mobile window display packing, described method is performed by remote sensing satellite data mobile window display system as claimed in claim 1, and described method comprises:
According to the star ground interface receiving remote sensing satellite data, preliminary treatment is carried out to the remote sensing satellite data received from remote sensing satellite, to obtain the original satellite data after frame synchronization, in the data structure of described original satellite data, at least comprise synchronization character, auxiliary parameter and view data;
Utilize Satellite ground interface, the original satellite extracting data exported from described data pre-processing unit goes out the auxiliary parameter of view data and correspondence, and carries out Formatting Output, to obtain image data file to extracted view data and auxiliary parameter;
Streaming process is carried out to the image data file that described image-generating unit obtains, to generate streaming media video file; And
The streaming media video file distribution generated by described streaming processing unit via network is to user, thus provide Moving Window to show with stream media mode to user, and according to the Moving Window display service parameter information that user selectes, generate the order request comprising this Moving Window display service parameter information.
8. remote sensing satellite data mobile window display packing as claimed in claim 7, wherein, described remote sensing satellite data mobile window display system also comprises data storage cell, and described method comprises:
The data that the satellite data received from remote sensing satellite and described data pre-processing unit, described image-generating unit and described streaming processing unit generate are stored in described data storage cell, and
Described method also comprises:
Described data pre-processing unit, image-generating unit, streaming processing unit and Streaming Media release unit obtain data and carry out respective handling from described data storage cell.
9. remote sensing satellite data mobile window display packing as claimed in claim 8, wherein,
Also comprise when generating described image data file: generate the image data file metamessage corresponding with described image data file, described image data file metamessage at least comprises satellite name corresponding to view data memory location, view data, orbit number, imaging beginning and ending time, wave band number, total line number of each wave band, the line length of each wave band, and described image data file metamessage is stored in described data storage cell together with corresponding image data file, and
Also comprise when generating streaming media video file: according to image data file metamessage and predetermined streaming media video file parameters, generate the streaming media video file meta-information corresponding with described streaming media video file, described streaming media video file meta-information at least comprises streaming media video file storage location, streaming media video size, the satellite name that streaming media video file is corresponding, orbit number, the imaging beginning and ending time, video frame rate and resolution, and described streaming media video file meta-information is stored in described data storage cell together with corresponding streaming media video file.
10. remote sensing satellite data mobile window display packing as claimed in claim 9, wherein, the streaming media video file distribution generated by described streaming processing unit via network to user, thus provides Moving Window display also to comprise with stream media mode to user:
According to described order request, obtain the streaming media video file corresponding with this order request; And
After getting corresponding streaming media video file, via network, this streaming media video file distribution is carried out Moving Window display to user.
11. remote sensing satellite data mobile window display packings as claimed in claim 10, wherein, described Moving Window display service parameter information at least comprises satellite name, orbit number, displaying time section, band combination mode, video frame rate and resolution.
12. remote sensing satellite data mobile window display packings as claimed in claim 10, wherein, according to described order request, obtain the streaming media video file corresponding with this order request and comprise:
According to the Moving Window display service parameter information comprised in described order request, in described data storage cell, search for corresponding streaming media video file;
When not searching corresponding streaming media video file in described data storage cell, in described data storage cell, search for corresponding image data file; And
Search corresponding image data file in described data storage cell after, the Moving Window display service parameter information being sent to by this image data file described streaming processing unit to select according to user generates streaming media video file and issues, or do not search corresponding image data file in described data storage cell after, return instruction and want the non-existent indication information of the satellite data of program request.
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| CN103412963B (en) * | 2013-09-04 | 2017-01-11 | 国家测绘地理信息局卫星测绘应用中心 | optical remote sensing satellite data obtaining method |
| CN105357472B (en) * | 2015-10-20 | 2016-08-24 | 中国人民解放军国防科学技术大学 | remote sensing satellite system video image real-time transmission method |
| CN111782689A (en) * | 2020-06-29 | 2020-10-16 | 北京华云星地通科技有限公司 | Multi-task parallel processing method based on satellite data |
| WO2023050423A1 (en) * | 2021-09-30 | 2023-04-06 | 深圳传音控股股份有限公司 | Image processing method and device, and storage medium |
| CN116668435B (en) * | 2023-08-01 | 2023-11-10 | 中国科学院空天信息创新研究院 | Interactive real-time remote sensing product generation method, device and storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010095458A1 (en) * | 2009-02-20 | 2010-08-26 | 日本電気株式会社 | Analysis preprocessing system, analysis preprocessing method, and analysis preprocessing program |
| CN102412990A (en) * | 2011-11-18 | 2012-04-11 | 中国科学院对地观测与数字地球科学中心 | Remote sensing satellite raw data recording system with centralized management and real-time transmission functions |
| CN102436492A (en) * | 2011-11-09 | 2012-05-02 | 浙江大学 | Web publishing method of quantified remote sensing data |
| CN102708204A (en) * | 2012-05-18 | 2012-10-03 | 福建四创软件有限公司 | Meteorogram overlay application method based on different projection methods |
-
2012
- 2012-12-24 CN CN201210566515.9A patent/CN103051944B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010095458A1 (en) * | 2009-02-20 | 2010-08-26 | 日本電気株式会社 | Analysis preprocessing system, analysis preprocessing method, and analysis preprocessing program |
| CN102436492A (en) * | 2011-11-09 | 2012-05-02 | 浙江大学 | Web publishing method of quantified remote sensing data |
| CN102412990A (en) * | 2011-11-18 | 2012-04-11 | 中国科学院对地观测与数字地球科学中心 | Remote sensing satellite raw data recording system with centralized management and real-time transmission functions |
| CN102708204A (en) * | 2012-05-18 | 2012-10-03 | 福建四创软件有限公司 | Meteorogram overlay application method based on different projection methods |
Non-Patent Citations (1)
| Title |
|---|
| 遥感图像实时多模式显示技术研究;远远;<<中国优秀硕士学位论文全文数据库>>;20081231;10-14 * |
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