CN1337826A - Method and system for radio narrowband transmission and real-time internet release of moving image - Google Patents
Method and system for radio narrowband transmission and real-time internet release of moving image Download PDFInfo
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- CN1337826A CN1337826A CN 00119566 CN00119566A CN1337826A CN 1337826 A CN1337826 A CN 1337826A CN 00119566 CN00119566 CN 00119566 CN 00119566 A CN00119566 A CN 00119566A CN 1337826 A CN1337826 A CN 1337826A
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Abstract
The invention discloses a method and system used to transfer moving image through wireless narrow-band and issue the moving image on Internet in real time. It incldues CDPD wireless data network, wireless moving digital video camera and local area network based on Internet. After the moving image captured, with being coded and comprssed, it is transferred to the wireless data network that transfers the moving image to a video frequency format converter and multimedia coders on local area network. The converter and coders decode, restore and display the coded and compressed moving image. The moving image can also be coded to a leading image media stream that can be issued to Internet through local area network with web page form in order to reach the effect of transferring and issuing moving image in real time.
Description
The present invention relates to video image by the arrowband wireless network transmissions on the internet and the method for real-time release, and the invention still further relates to video image is given internet and real-time release by the arrowband wireless network transmissions system.
Multimedia World Wide Web (WWW) (Web) the motion video image that (Internet) upward issues in the internet all is in broadband cabled mode image to be sent to Web server (abbreviation Web server) at present, and leading digital picture media stream formats extensively to be received at present, be published on the internet as the advanced streaming format (being called for short the ASF form) of Microsoft and the real-time multimedia form (being called for short the RM form) of Real Network company, but broadband cabled image transmission is difficult for realizing low-cost, on a large scale, the issue of long distance ground multimedia real-time activity image on the internet, so effective method is to carry out Digital Image Transmission with the arrowband wireless digital wide area network that hangs down use cost, nowadays Shanghai, Beijing, public arrowband radio honeycomb digital packet (the Cellular Digital Packer Data that is runing in cities such as Shenzhen, CDPD) wide area network, a so just public wireless data transmission network.Yet because the movable number amount of image information is huge, on public arrowband radio honeycomb digital packet wide area network (being called for short the CDPD radio data network), can't realize effective Digital Image Transmission always, must carry out the compression and the optimization of height ratio to huge DID, make it to be improved to the transmission bandwidth requirement of CDPD radio data network, the actual average transmission bandwidth of CDPD radio data network is about about 2 kilobaud rates (kbps).The digital picture media stream formats that present various digital picture high compression ratio technology all is a non-dominant, thereby can't directly on Web server, carry out the issue of internet digital picture Media Stream.
The object of the present invention is to provide a kind of live image arrowband wireless transmission and by the method and system of internet real-time release, realization is transmitted based on the real-time radio motion video image on the public arrowband radio honeycomb digital packet wide area network, and the motion video image is carried out format conversion become the digital picture Media Stream (Internet) goes up real-time release in the internet with the form of Web webpage, thereby reach the effect of the real-time Transmission issue of live image.
In order to realize above-mentioned task, the present invention has adopted following solution: at first provide a kind of and solved live image arrowband wireless transmission and by the method for internet real-time release, this method comprises the following steps:
(a) catch analog video image;
(b) analog video image of catching is carried out encoding compression processing;
(c) image after the encoding compression processing is sent to the CDPD radio data network;
(d) the CDPD radio data network is transferred to LAN with the image after the encoding compression processing that receives;
(e) LAN is to the decompression processing of decoding of the image after the encoding compression processing that receives;
(f) LAN is sent to the internet real-time release to the image of decoding decompression processing.
The step that the analog video image to catching described in this method carries out encoding compression is that coding that of formulating with ITU-TH.263 International Telecommunications Union can be used in low bit rate compression audio-visual service live image composition reproduces agreement (being called for short the ITU-TH.263 agreement) and carries out the video coding compression and be processed into digital video image, and the data volume of the every frame of digital video image after the encoding compression processing is below 2kbps.
Described step of catching analog video image is to be finished by charge coupled device color video camera (being called for short CCD color video camera).
The described step that the analog video image of catching is carried out encoding compression processing is to be finished by the video image digital signal processing module.
The described step that image after the encoding compression processing is sent to the CDPD radio data network is to be finished by CDPD wireless the Internet protocol modulator-demodulator (being called for short the wireless IP modulator-demodulator of CDPD).
Described CDPD radio data network is by Digital Data Net (being called for short DDN) or X.25 digital packet net (being called for short X.25) Leased line transmission with the step that the image after the encoding compression processing of receiving is transferred to LAN.
Described LAN is to be finished by video format conversion and multimedia coding machine to the decode step of decompression processing of the image after the encoding compression processing that receives.
The step that described LAN is delivered to the internet real-time release to the image of decoding decompression processing is to be finished by multimedia server and Web server.
LAN described in this method further comprises the following steps: the decompression processing of decoding of the image after the encoding compression processing that receives
(1) by the ITU-TH.263 agreement to the decompression processing of decoding of the digital video image after the encoding compression processing;
(2) will the decode digital video image processing and amplifying of decompression processing becomes the digital video image of full screen display;
(3) digital video image with full screen display converts the analog video image of full screen display to;
(4) analog video image of full screen display is caught collection;
(5) analog video image that will catch collection converts the form of digital picture Media Stream to.
In order to realize above-mentioned solution, the present invention also provides a kind of live image arrowband wireless transmission and by the system of internet real-time release, picture signal is by the transmission of CDPD radio data network among this system, and this CDPD radio data network carries out packet data transmission with TCP (abbreviation ICP/IP protocol); Its characteristics are to include: catch analog video image and carry out encoding process and the image signal transmission after the encoding compression processing is given the wireless mobile digital video camera of CDPD radio data network; Receive picture signal that the CDPD radio data network transmits and with this picture signal decode decompression processing and the LAN by the internet real-time release based on the internet.
Wireless mobile digital video camera described in this system comprises: CCD color video camera, video image digital signal processing module, CDPD is wireless IP modulator-demodulator; CCD color video camera is caught analog video image, analog video image signals becomes digital video image by digital video processing module encoding compression processing, and the digital video image of encoding compression processing is sent to the CDPD radio data network through the wireless IP modulator-demodulator of CDPD again.
LAN includes described in this system: Web server, multimedia server, hub, video format conversion and multimedia code machine, it is the internal lan network with a cover operation Window network operating system of ICP/IP protocol transmission, and this LAN and external the Internet are interconnected.
Described video format conversion and multimedia coding machine comprise: multimedia computer, external video format converter, built-in video image capured keystroke; This multimedia computer with the digital video image of encoding compression processing decode decompression processing and again processing and amplifying become the digital video image of full screen display, multimedia computer exports the digital video image of full screen display to be external in multimedia computer external video format converter simultaneously; This external video format converter converts the digital video image of full screen display to the analog video image of full screen display; The analog video image of this full screen display inputs to the built-in video image capured keystroke that is built in multimedia computer again and carries out the collection of catching of image, and the image of catching collection converts the digital picture media stream formats to through multimedia computer again.
By technical scheme of the present invention as can be known, the present invention has following beneficial effect:
(1) owing to the method and system that has adopted the encoding compression processing and the decoding decompression processing of video image, thereby live image can be easily and effectively by transmitting on the public arrowband radio honeycomb digital packet wide area network, and the scope of transmitting is big, distance, and transmission cost is also much lower than broadband network, provides possibility for live image transmits on narrowband network.
(2) owing to adopted video format conversion and multimedia coding machine, so can carry out the operational processes of image effectively, and non-dominant form live image can be converted to the digital picture Media Stream of general leading form, can reach the effect of live image in the issue of carrying out the digital picture Media Stream on the internet in real time by Web server at last in long-range issue on the internet.
Thereby we can finish the be transferred to internet of wireless digital image by narrowband network by method and system of the present invention easily, and are carrying out long-range issue of digital picture Media Stream and monitoring in real time on the internet.
The present invention is further illustrated below in conjunction with drawings and Examples.
Fig. 1 is the forecast scheme configuration figure of the embodiment of the invention.
Fig. 2 is the structural representation of employed wireless mobile digital video camera in the embodiment of the invention.
Fig. 3 is the structural representation of employed video format conversion and multimedia coding machine in the embodiment of the invention.
Fig. 4 is the schematic process flow diagram of analog video image encoding compression software in the wireless mobile digital video camera.
Fig. 5 is the schematic process flow diagram that digital video image is decoded decompress(ion) and amplified software in video format conversion and the multimedia coding machine.
At first hardware device name used among Fig. 1, Fig. 2, Fig. 3 is called below and introduces:
Among Fig. 1: the digital packet switch 3 of wireless mobile digital video camera 1, CDPD radio data network 2, CDPD radio data network, router four, DDN or X.25 Leased line 5, hub (HUB) 6, video format conversion and multimedia coding machine 7, multimedia server 8, Web server 9, LAN 10, internet (Internet) 11 based on the internet.
Among Fig. 2: CCD color video camera 12, video image digital signal processing module 13, CDPD is wireless IP modulator-demodulator 14.
Among Fig. 3: multimedia computer 15, external video format converter 16, digital video image full screen display output 17, analog video image full screen display input 18, built-in video capture card 19.
Seeing also Fig. 1 below is the forecast scheme configuration figure of the embodiment of the invention.By among Fig. 1 as can be known, the present invention mainly is made up of following three parts:
1, the CDPD radio data network 2;
2, wireless mobile digital video camera 1;
3, based on the LAN 10 of internet 11.
After wireless mobile digital video camera 1 carries out digitlization and encoding compression processing with the activity mimics video image of its picked-up, be sent to LAN 10 by CDPD radio data network 2 based on internet 11, LAN 10 is carried out the image/video format conversion with the DID of receiving, and make the motion video image after the conversion carry out encoding compression again and be transferred to multimedia server 8 by the ASF form or the RM form of Microsoft, finally finish the issue of digital picture Media Stream on internet 11 by Web server 9.
Below more respectively to its detailed description:
1, the CDPD radio data network 2
CDPD: English full name is Cellular Digital Packet Data, and Chinese translation is a cellular digital formula packet data switched network, and it is based on the digital packet technology, is the mobile radio data communication technology of networking mode with the cellular mobile communication.Its principle is by certain rule, a whole piece of data message is divided into the data segment of some fixed length, and adds transceiver terminal address and other control information for each data segment, transmits with ICP/IP protocol on Cellular Networks with the unit of being grouped into.
At present China Telecom invests technology and the equipment that 100,000,000 RMB adopt U.S. Lucent Technologies, in Beijing, six cities such as Shanghai, Guangzhou, Shenzhen, Xiamen, Changsha utilize the CDPD technology to set up first common moving data communication network of China.
The CDPD radio data network 2 in Shanghai is now by management of Shanghai post and telecommunications mobile data communication Co., Ltd and operation.
CDPD has following characteristics:
(1) wireless wide area network is easy to realize national Wireless Networking roaming.
(2) network air traffic channel speed is 19.2 kilobaud rates (kbps), but owing to adopt the transmitted in packets switching technology, grouped data packing and channel multiplexing etc. need some expenses, so concerning the user when data transmission service is busy, the actual information transmission rate is generally about 2kbps, concrete condition view network actual load situation elastic variable.
(3) communication mode of full duplex, the portable terminal in the network can receive and send data simultaneously.
(4) network is by forward error correction (FEC) and automatic repeat request technology, to guarantee to carry out error-free transmitted data.
(5) network is based on the open system of ICP/IP protocol, (Internet) all application software based on ICP/IP protocol that can enter the Internet whenever and wherever possible can need not to revise ground and directly use, and communication of mobile terminal is numbered direct internet usage protocol address (being called for short the IP address).
(6) the terminal rate travel can reach more than 100 kilometers/hour, according to the test speed of a motor vehicle reach per hour 120 kilometers/time, the CDPD portable terminal is as usual to data transmitting-receivings.And car can data interruption when the different districts yet.
(7) adopt advanced encryption technology safe and reliable, prevent that data from revealing and eavesdropping.
(8) real-time and low expense: because CDPD adopts the digital packet switching technology, it makes portable terminal in the network so long as in the coverage area of network signal and be in open state, just can both remain long the connection, and it does not take a channel separately with network with unimpeded; This is different from cordless communication network such as global mobile communication (GSM), the code division multiple access of forming with circuit exchange mode (CDMA) etc., in a single day portable terminal just interconnects and takies a channel fully separately in these network systems, and the data of other portable terminals can't utilize this channel to transmit; And the channel among the CDPD can make from the packet in different pieces of information source and transmits on a channel or other channels with interweaving, can realize sharing of the communication resource thus, improves the utilance of channel widely, has also reduced communications cost widely.
2, wireless mobile digital video camera 1
See also Fig. 2, wireless mobile digital video camera 1 is made up of following three parts:
(1) CCD color video camera 12, picked-up dynamic analog video image.
(2) the video image digital signal processing module 13.This video image digital signal processing module 13 will be carried out digital video by the analog picture signal that CCD color video camera 12 is sent here and quantize, and the digital video signal after will quantizing is by certain video signal coding compression algorithm, these huge video signals are carried out encoding compression, simultaneously the time to CDPD radio data network 2 transmitted image data, according to the actual channel bandwidth of CDPD radio data network 2, the transmission of view data is cushioned the real-time Transmission bandwidth requirement that makes it to reach CDPD radio data network 2 with optimization process.
The digital video compaction technique that video image digital signal processing module 13 adopts hardware and software to combine, can reach at present video image with 1/4th public intermediate form (QCIF) standard image format of every frame 600kbps data volume, be 5 centimetres of (1.5 inches * 2 inches) pictures of picture display size size 3.8 cm x, be compressed to the data volume about every frame 1.5kbps, the highest transmission rate that can reach per second 2 frames in CDPD radio data network 2.
(3) the wireless IP modulator-demodulator 14 of CDPD, this part is finished the digital video image data after the encoding compression is divided into groups to pack, be sent to CDPD radio data network 2, transfer to local area network (LAN) 10 by CDPD radio data network 2, and make wireless mobile digital video camera 1 in CDPD radio data network 2, obtain a unique IP address based on the internet.
Seeing also shown in Figure 4ly, is the schematic process flow diagram of analog video image encoding compression software in the wireless mobile digital video camera, and its workflow is as follows:
I, at first catch by 12 pairs of video images of CCD color video camera;
Ii, the video image that captures is sent to buffering area manages;
Iii, the video data of buffering area is carried out encoding compression processing by the ITU-TH.263 agreement according to the actual bandwidth of network;
Iv, video data after the encoding compression processing is sent to the CDPD radio data network by the actual bandwidth of network by the wireless IP modulator-demodulator 14 of CDPD by User Datagram Protoco (UDP) (abbreviation udp protocol).Annotate:
*CCD color video camera 12: can select common adjustable focus CCD color video camera for use.
*Video image digital signal processing module 13: the PCISA-158HV type single board computer that can select for use Taiwan IEI ICP Electronics Inc to produce.
*CDPD is wireless IP modulator-demodulator 14: can select Taiwan Z Square Telecom for use, the Z-Card that Inc. company produces
TM300 CDPD Data Module.
3, based on the LAN 10 of internet 11.
See also Fig. 1, composed as follows based on the LAN 10 of internet 11:
Form by video format conversion and multimedia coding machine 7, multimedia server 8, Web server 9 etc.It is that the window networking operating system of operation Microsoft is that an internal lan network is formed on the basis with the ICP/IP protocol, and this LAN 10 with outside be interconnected because of holding net 11.
Multimedia server 8 and Web server 9 all move the Windows2000 Server network operating system software that MS produces, multimedia server 8 also moves Windows Media Server service software, and Web server 9 also moves Windows Internet Information Server service software.
Video format conversion and multimedia coding machine 7 its compositions have following three parts:
(1) multimedia computer 15---be that operation Windows95 or Windows98 operating system CDPD video image decoding amplify that the Pentium MMX-166MHZ of software and Windows multimedia coding software is above, the multimedia computer of 32M internal memory, 1G hard disk.
(2) external video format converter 16---convert the digital video image full screen display output 17 of multimedia computer 15 to analog video image full screen display output, with this analog video input 18 as built-in video capture card 19.
(3) built-in video capture card 19---in order to catch the analog video image full screen display signal of external video format converter 16 outputs, for the operation of the Windows multimedia coding software in the multimedia computer.
Wherein the FB(flow block) of video image decoding amplification software sees also Fig. 5 in video format conversion and the multimedia coding machine 7, and its workflow is as follows:
I, multimedia computer 15 are based on the udp protocol receiving video data;
Ii, the video data that receives are delivered to buffering area and are managed;
Video data within iii, the buffering area carries out the video decode decompression processing by multimedia computer 15 by the ITU-TH.263 agreement;
Iv, the data of decoding after the decompression processing are carried out video playback;
V, full frame processing and amplifying is carried out in the video diagram again.Annotate:
*Built-in video capture card 19: can select Taiwan AverMedia Technologies for use, the Aver-EZ Capture type PCI video capture card that Inc. company produces.
*External video format converter 16: the 2138 type VGA-to-TV video format converters that can select for use Taiwan AITech International Corp. company to produce.
*Windows multimedia coding software: WindowsMedia Tools 4.0 softwares that can select for use MS to produce.
Video format conversion and multimedia coding machine 7 by DDN or X.25 Leased line 5 link to each other with the digital packet switch 3 of CDPD radio data network 2, and be assigned with a unique IP address.Wireless mobile digital video camera 1, with the digital video image data after its picked-up and the encoding compression processing via CDPD radio data network 2 be sent in the wireless network digital packet switch 3 again through router four by the DDN that is attached thereto or X.25 Leased line 5 be sent to video format conversion and multimedia coding machine 7 in the LAN 10, this video format conversion and multimedia coding machine 7 operate in the picture decoding software on video format conversion and the multimedia coding machine 7, with the digital video image of the vedio data that receives decoding decompress(ion) one-tenth activity, on display screen, show and be amplified to full screen display with the image of QCIF form; Then external video format converter 16 is delivered in this digital video image full screen display output 17, the numeral that external subsequently video format converter 16 will be displayed in full screen again image transitions frequently becomes full frame analog video image output, with this analog video image full screen display input 18 as built-in video capture card 19, operate in that the Windows multimedia coding software on the multimedia computer 15 is compressed into the ASF form of Microsoft or the digital picture Media Stream of the Real Network RM of company form with the analog video image digital coding that captures in video format conversion and the multimedia coding machine 7, transfer to multimedia server 8 by LAN 10 then, finally be distributed on the internet 11 via Web server 9.
Each video format conversion and multimedia coding machine 7 are corresponding one by one with wireless mobile digital video camera 1, be that 7 processing of each video format conversion and multimedia coding machine are corresponding with it, i.e. the vedio data that sends of wireless mobile digital video camera 1 by a unique IP address correspondence.That is to say what wireless mobile digital video cameras 1, in LAN 10, should just have what video format conversion and multimedia coding machine 7 corresponding with it so.
The operation principle and the process of the embodiment of the invention are as follows:
Wireless mobile digital video camera 1 is carried out being sent to CDPD radio data network 2 by the wireless IP modulator-demodulator 14 of CDPD after the digital coding compression is handled through video image digital signal processing module 13 by its inner CCD color video camera 12 picked-up simulation color video images; CDPD radio data network 2 imports the wireless digital vedio data digital packet switch 3 of CDPD radio data network, and via router four, DDN or X.25 Leased line 5, hub (HUB) 6 transfer to based on video format conversion in the LAN 10 of internet 11 and multimedia coding machine 7, multimedia computer 15 in video format conversion and the multimedia coding machine 7 is that full frame live image shows with the image data decoding decompress(ion) that receives, and external video format converter 16 is delivered in this digital video image full screen display output 17; External video format converter 16 is that the analog video image full screen display is with this analog video image full screen display input 18 as the built-in video image capured keystroke 19 in the multimedia computer 15 again with the image/video format conversion, multimedia computer 15 its Windows multimedia coding softwares of operation carry out its analog video image of catching the digital picture Media Stream coding of real-time ASF form or RM form, and the digital picture Media Stream after will encoding transfers to multimedia server 8 and the Web server 9 that runs on Windows2000Server network operating system software by LAN 10, final in the internet 11 enterprising line number word image Media Streams with the long-range issue of Web form web page.
Live image by the transmission of arrowband wireless remote and with its method step in real time remote issue on the internet is in proper order in the embodiment of the invention:
The first step: catch colored analog video image by 12 picked-ups of CCD color video camera.
Second step: by video image digital signal processing module 13 operation encoding video pictures compressed softwares to the motion video image of catching carry out the digital coding compression handle make the every frame of common digital active image data volume below 2kbps, so that be fit to the actual transmission bandwidth requirement of CDPD radio data network 2.
The 3rd step: vedio data is sent to CDPD radio data network 2 by the wireless IP modulator-demodulator 14 of CDPD.
The 4th step: vedio data is imported in its digital packet switch 3 by CDPD radio data network 2.
The 5th step: vedio data is via DDN that links to each other with digital packet switch 3 or Leased line 5 X.25, transfers to the multimedia computers 15 in the arrival video format conversion and multimedia coding machine 7 in the LAN 10.
The 6th step: the multimedia computer 15 in video format conversion and the multimedia coding machine 7 is with the vedio data that receives operation video image decoding decompress(ion) and amplify the software reduction of decoding and be enlarged into full frame movable number video image and show.
The 7th step: external video format converter 16 is delivered in digital video image full screen display output 17.
The 8th step: by external video format converter 16 is that analog video image is displayed in full screen form with the video format conversion of digital picture again.
The 9th step: with the analog video image full screen display input 18 of analog video image full screen display as built-in video image capured keystroke 19 in the multimedia computer 15.
The tenth step: multimedia computer 15 its Windows multimedia coding softwares of operation carry out its analog video image of catching the digital picture Media Stream coding of real-time ASF form or RM form.
The 11 step: the digital picture Media Stream behind the coding inputs to the multimedia server 8 and the Web server 9 of operation Windows2000 Server operating system software by LAN 10.
The 12 step: finally by Web server 9 to of long-range issue and the monitoring of internet 11 enterprising line number numeric word image medias streams with the Web form web page.
Claims (21)
1, a kind of live image arrowband wireless transmission and by the method for internet real-time release, it is characterized in that: this method comprises the following steps:
(a) catch analog video image;
(b) analog video image of catching is carried out encoding compression processing;
(c) image after the encoding compression processing is sent to the CDPD radio data network;
(d) the CDPD radio data network is transferred to LAN with the image after the encoding compression processing that receives;
(e) LAN is to the decompression processing of decoding of the image after the encoding compression processing that receives;
(f) LAN is sent to the internet real-time release to the image of decoding decompression processing.
2, live image arrowband wireless transmission as claimed in claim 1 and by the method for internet real-time release, it is characterized in that: described LAN is meant the internal lan network with a cover operation window networking operating system of ICP/IP protocol transmission.
3, live image arrowband wireless transmission as claimed in claim 1 and by the method for internet real-time release, it is characterized in that: the described step that the analog video image of catching is carried out encoding compression is to carry out the video coding compression with the ITU-TH.263 agreement to be processed into digital video image, and the data volume of the every frame of digital video image after the encoding compression processing is below 2kbps.
4, live image arrowband wireless transmission as claimed in claim 1 and by the method for internet real-time release is characterized in that: described LAN further comprises the following steps: the decompression processing of decoding of the image after the encoding compression processing that receives
(1) by the ITU-TH.263 agreement to the decompression processing of decoding of the digital video image after the encoding compression processing;
(2) will the decode digital video image processing and amplifying of decompression processing becomes the digital video image of full screen display;
(3) digital video image with full screen display converts the analog video image of full screen display to;
(4) analog video image of full screen display is caught collection;
(5) analog video image that will catch collection converts the form of digital picture Media Stream to.
5, live image arrowband wireless transmission as claimed in claim 4 and by the method for internet real-time release is characterized in that: the RM form of ASF form that described digital picture media stream formats is a Microsoft or Real Network company.
6, live image arrowband wireless transmission as claimed in claim 1 and by the method for internet real-time release, it is characterized in that: described step of catching analog video image is to be finished by CCD color video camera.
7, live image arrowband wireless transmission as claimed in claim 1 and by the method for internet real-time release is characterized in that: the described step that the analog video image of catching is carried out encoding compression processing is to be finished by the video image digital signal processing module.
8, live image arrowband wireless transmission as claimed in claim 1 and by the method for internet real-time release is characterized in that: the described step that image after the encoding compression processing is sent to the CDPD radio data network is to be finished by the wireless IP modulator-demodulator of CDPD.
9, live image arrowband wireless transmission as claimed in claim 1 and by the method for internet real-time release, it is characterized in that: described CDPD radio data network is by DDN or X.25 Leased line transmission with the step that the image after the encoding compression processing of receiving is transferred to LAN.
10, live image arrowband wireless transmission as claimed in claim 1 and by the method for internet real-time release is characterized in that: described LAN is to be finished by video format conversion and multimedia coding machine to the decode step of decompression processing of the image after the encoding compression processing that receives.
11, live image arrowband wireless transmission as claimed in claim 1 and by the method for internet real-time release, it is characterized in that: the step that described LAN is delivered to the internet real-time release to the image of decoding decompression processing is to be finished by multimedia server and Web server.
12, live image arrowband wireless transmission as claimed in claim 4 and by the method for internet real-time release is characterized in that: described is to be finished by multimedia computer by the ITU-TH.263 agreement to the decode step of the digital video image that the digital video image processing and amplifying of the step of decompression processing and the decompression processing of will decode becomes to be displayed in full screen of the digital video image after the encoding compression processing.
13, live image arrowband wireless transmission as claimed in claim 4 and by the method for internet real-time release, it is characterized in that: the step that described digital video image with full screen display converts the analog video image of full screen display to is to be finished by external video format converter.
14, live image arrowband wireless transmission as claimed in claim 4 and by the method for internet real-time release, it is characterized in that: the step that described analog video image to full screen display is caught collection is to be finished by built-in video capture card.
15, live image arrowband wireless transmission as claimed in claim 4 and by the method for internet real-time release, it is characterized in that: the step that the described analog video image that will catch collection converts the digital picture media stream formats to is to be finished by multimedia computer.
16, a kind of live image arrowband wireless transmission and by the system of internet real-time release, wherein picture signal is by the transmission of CDPD radio data network, and this CDPD wireless network carries out packet data transmission with ICP/IP protocol; It is characterized in that including:
Catch analog video image and carry out encoding process and the image signal transmission after the encoding compression processing is given the wireless mobile digital video camera of CDPD radio data network;
Receive picture signal that the CDPD radio data network transmits and with this picture signal decode decompression processing and the LAN by the internet real-time release based on the internet.
17, live image arrowband wireless transmission as claimed in claim 16 and by the system of internet real-time release, it is characterized in that: described wireless mobile digital video camera comprises: CCD color video camera, video image digital signal processing module, CDPD is wireless IP modulator-demodulator;
CCD color video camera is caught analog video image, analog video image signals becomes digital video image by digital video processing module encoding compression processing, and the digital video image of encoding compression processing is sent to the CDPD radio data network through the wireless IP modulator-demodulator of CDPD again.
18, live image arrowband wireless transmission as claimed in claim 16 and by the system of internet real-time release, it is characterized in that: described LAN includes: Web server, multimedia server, hub, video format conversion and multimedia code machine, it is the internal lan network with a cover operation Window network operating system of ICP/IP protocol transmission, and this LAN and external the Internet are interconnected.
19, live image arrowband wireless transmission as claimed in claim 18 and by the system of internet real-time release, it is characterized in that: described video format conversion and multimedia coding machine comprise: multimedia computer, external video format converter, built-in video image capured keystroke;
This multimedia computer with the digital video image of encoding compression processing decode decompression processing and again processing and amplifying become the digital video image of full screen display, multimedia computer exports the digital video image of full screen display to be external in multimedia computer external video format converter simultaneously;
This external video format converter converts the digital video image of full screen display to the analog video image of full screen display;
The analog video image of this full screen display inputs to the built-in video image capured keystroke that is built in multimedia computer again and carries out the collection of catching of image, and the image of catching collection converts the digital picture media stream formats to through multimedia computer again.
20, live image arrowband wireless transmission as claimed in claim 18 and by the system of internet real-time release is characterized in that: described corresponding one by one with the wireless mobile digital video camera that has unique ip address in the CDPD radio data network in video format conversion that has unique ip address among the LAN and multimedia coding machine.
21, live image arrowband wireless transmission as claimed in claim 16 and by the system of internet real-time release is characterized in that: the CDPD radio data network with image signal transmission to LAN by DDN or X.25 Leased line transmission.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00119566 CN1337826A (en) | 2000-08-04 | 2000-08-04 | Method and system for radio narrowband transmission and real-time internet release of moving image |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00119566 CN1337826A (en) | 2000-08-04 | 2000-08-04 | Method and system for radio narrowband transmission and real-time internet release of moving image |
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| CN1337826A true CN1337826A (en) | 2002-02-27 |
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| CN 00119566 Pending CN1337826A (en) | 2000-08-04 | 2000-08-04 | Method and system for radio narrowband transmission and real-time internet release of moving image |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100593944C (en) * | 2003-04-07 | 2010-03-10 | 圣像实验室有限公司 | Method for capturing of real-time image |
| CN1517778B (en) * | 2003-01-14 | 2010-07-14 | 三洋电机株式会社 | Photographic image output system, display control device, liquid crystal projector and digital camera |
| CN101277436B (en) * | 2007-03-26 | 2010-07-14 | 创惟科技股份有限公司 | Control system and control method for multi-crossfire type network camera |
| CN103853237A (en) * | 2012-11-30 | 2014-06-11 | 王丽霞 | Intelligent electronic communication device |
-
2000
- 2000-08-04 CN CN 00119566 patent/CN1337826A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1517778B (en) * | 2003-01-14 | 2010-07-14 | 三洋电机株式会社 | Photographic image output system, display control device, liquid crystal projector and digital camera |
| CN100593944C (en) * | 2003-04-07 | 2010-03-10 | 圣像实验室有限公司 | Method for capturing of real-time image |
| CN101277436B (en) * | 2007-03-26 | 2010-07-14 | 创惟科技股份有限公司 | Control system and control method for multi-crossfire type network camera |
| CN103853237A (en) * | 2012-11-30 | 2014-06-11 | 王丽霞 | Intelligent electronic communication device |
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