WO2011142513A1 - 영상촬상소자를 직접 연결한 바이너리 cdma 영상 송수신 시스템 - Google Patents
영상촬상소자를 직접 연결한 바이너리 cdma 영상 송수신 시스템 Download PDFInfo
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- WO2011142513A1 WO2011142513A1 PCT/KR2010/007441 KR2010007441W WO2011142513A1 WO 2011142513 A1 WO2011142513 A1 WO 2011142513A1 KR 2010007441 W KR2010007441 W KR 2010007441W WO 2011142513 A1 WO2011142513 A1 WO 2011142513A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
- H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
- H04N19/89—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving methods or arrangements for detection of transmission errors at the decoder
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
Definitions
- the present invention relates to a binary CDMA image transmission and reception system directly connected to an image pickup device, and more particularly, to capture a security surveillance image using a general CCD / CMOS camera and to immediately transmit a digital image without signal conversion.
- the present invention relates to a binary CDMA video transmission / reception system directly connected to an image pickup device having a high processing speed, high stability and efficiency, and a drastically improved transmission distance.
- CCTV cameras are installed and operated for surveillance / management in vulnerable areas, crowded places or industrial facilities.
- a surveillance camera and a system for performing a surveillance function in an analog wireless manner have been disclosed by using an image pickup device such as a charge-coupled device (CCD) / complementary metal-oxide semiconductor (CMOS) camera module.
- an image pickup device such as a charge-coupled device (CCD) / complementary metal-oxide semiconductor (CMOS) camera module.
- CCD charge-coupled device
- CMOS complementary metal-oxide semiconductor
- the transmission efficiency is disadvantageous for long-distance communication, the data encryption function is poor, the security is not only weak, the frequency efficiency is low, there is a disadvantage of high interference and high noise generation.
- the present invention has been made in view of various disadvantages of the prior art as described above, and it is possible to directly output the first digital image obtained through the image pickup device as a digital image without analog conversion to prevent the resolution from deteriorating.
- Enhance security through encryption of transmission data by applying binary CDMA technology improve reliability of transmission data by securing high frequency efficiency and low signal interference, and transmit and receive video and audio data up to 500m without base station.
- Its main purpose is to provide a binary CDMA video transmission / reception system in which a small number of terminals can be simultaneously connected and directly connected to an image pickup device having excellent operational efficiency.
- an image pickup device comprising a CCD / CMOS camera module and outputting a captured digital image signal as it is, CCIR601 or CCIR656;
- An image preprocessor for clearly processing the digital image signal output from the image pickup device;
- a digital image processor converting the image signal processed by the image preprocessor into a compressible signal;
- a transmitter A / V codec for compressing the video signal output from the digital video processor;
- a transmitting host processor for controlling the image photographing device, the digital image processing unit, the transmitting A / V codec and performing binary CDMA function, and having embedded Linux as an O / S;
- a transmitting binary CDMA baseband processor for encoding and binarizing the video signal compressed by the transmitting A / V codec under the control of the transmitting host processor and modulating the video signal into a time division multiple access signal waveform;
- An image transmitter comprising an RF transmitter for transmitting a modulated signal output from the binary CD
- the image pre-processing unit in the image transmission unit is characterized in that the processing using a 12-bit AD IC.
- the compression scheme used in the transmitter A / V codec and the receiver A / V codec is characterized by any one of M-JPEG, MPEG-4, and H.264.
- the RF receiver in the image receiver according to the device used 1 1: 1 (receives a signal from the camera module built in one binary CDMA to one receiver), 1: 4 (four binary CDMA to one receiver) Receive signal from camera module with built-in camera) and 1: 8 (receive signal from camera module with 8 binary CDMA built into one receiver). Decision making also has its characteristics.
- the receiver A / V codec and the image post-processing unit in the image receiver is mounted on the main board of the PC, RF receiver, binary CDMA baseband processor, the host processor is manufactured in the form of a PC card and then mounted on the PC.
- the host processor is manufactured in the form of a PC card and then mounted on the PC.
- the resolution of the image quality can be increased through the digital processing method, not the analog method, the transmission data can be encrypted, the security is improved, the frequency efficiency is excellent, and the quality of the transmission data is low with low coherence. It is possible to achieve the long distance communication and the low power ultra high speed transmission, which is superior to other short range wireless communication.
- FIG. 1 is an exemplary configuration block diagram of an image transmitter of a system according to the present invention.
- FIG. 2 is an exemplary configuration block diagram of an image receiving unit of a system according to the present invention.
- FIG. 3 is a block diagram showing another example of the image receiving unit constituting the system according to the present invention.
- image transmission unit 110 image pickup device
- RF receiver 260 PC card
- a binary CDMA video transmission / reception system directly connected to an image pickup device includes an image transmitter and an image receiver.
- Binary CDMA is a CDMA technology, which is one of wireless communication technologies, and is a personal wireless communication technology that allows digital devices to wirelessly connect and receive voice, video, and data without wires.
- Such binary CDMA wireless communication technology is superior in various aspects to Bluetooth, Zigbee, UWB, etc., within the range of personal wireless communication, as shown in Table 1 below, and in particular, it is possible to always maintain a constant transmission speed for each user even with a change in the number of users. It is a wireless communication technology that has an excellent advantage in multimedia transmission.
- the binary CDMA wireless communication technology utilized by the present invention is noise resistant as CDMA, ultra fast transmission and low power consumption like TDMA, and can transmit data to be encrypted, and excellent security, WLAN, Bluetooth, Zigbee and Simultaneous use allows for excellent frequency efficiency, low mutual interference, support for multimedia data transmission (Qos), and support for various variable transmission speeds from 300kbps to 64Mbps to realize wireless networks and high-definition shapes between various digital devices. It can transmit / receive wirelessly, transmit and receive data (video, voice) up to 500m without a base station, and can configure an independent ad-hoc network between terminals without an access point (AP). 40 active devices can be used per piconet and up to 250 devices can be connected.
- the image transmission unit 100 may be configured as shown in FIG. 1.
- the image transmission unit 100 includes an image pickup device 110.
- the image pickup device 110 is a general CCD / CMOS camera module.
- the digital image processing unit 130 transmits the captured digital signal to the digital image processing unit 130 as it is, without converting the captured digital signal to analog, as a direct digital image.
- the CCD method is an optical system based on an analog circuit, and when light entering a lens enters a light collecting device called a cell, each cell stores a charge of the light and sends it to a converter to express color. That's the way. In other words, the light passing through the lens is transmitted to the CCD element instead of the film through the aperture, thereby generating an image.
- the CCD is divided into numerous cells, so that even if some cells are damaged, the image can be generated from other cells.
- the CCD method has excellent image quality, high sensitivity, and fine expression and fine color separation.
- CMOS complementary metal-oxide-semiconductor
- one transistor is used for a light converging element, and a modulator for converting charge into an electric signal is attached to all pixels of an image constituent particle so that only necessary data can be read.
- Speed is fast
- the CMOS system can combine a circuit for converting photographed image data into a digital signal, a memory for storing data, and a central processing unit for controlling the output of data or the whole device in one chip.
- the price reduction can be achieved.
- CMOS system attaches a modulator to each pixel, image quality and sensitivity are relatively inferior to that of CCDs, such as unevenness of the photographed image.
- the CCD / CMOS camera module is directly used to obtain digital data, and the digital data is processed as it is.
- the image preprocessor 120 is connected to the output terminal of the image pickup device 110.
- the image preprocessing unit 120 prevents deterioration by accelerating the speed to add a clear signal in an array of 12 (including 12 or more) to digitally transmitted color data instead of the existing analog image data using a 12-bit AD IC.
- the codec is compressed to improve color efficiency and image quality.
- the image preprocessor 120 directly processing the digital video signal source in the digital video format processed by 12 bits before the digital image data processing is added.
- the digital image processor 130 is connected to an output terminal of the image preprocessor 120.
- the digital image processor 130 is a digital signal processor (DSP) for processing digital signals at high speed.
- DSP digital signal processor
- the video and audio data is processed so that the video data input from the video image pickup device 110 can be compressed by various A (Audio) / V (Video) codecs.
- a video decoding function of decoding an analog composite video signal output from an image pickup device such as a CCD camera module into a digital signal suitable for A / V codec input is performed.
- an image pickup device such as a CCD camera module
- a digital signal suitable for A / V codec input is performed.
- the reach is more than 30% compared to the existing one, and the image quality and the sensibility can be stably increased from the general CCD camera (270,000pixel class) to MEGAPIXEL (1.3M ⁇ 3M), and data loss and conversion (Analog ⁇ Digital ⁇ Analog) It can prevent deterioration by.
- an A / V codec 140 is connected to an output terminal of the digital image processor 130.
- the A / V codec 140 compresses an audio portion and a video portion of the digital image processed by the digital image processor 130.
- the existing analog data can be played back or recorded on a general DVR due to deterioration, but the analog data is converted back to digital data using the ARM7 FORMAT for binary CDMA transmission.
- the digital video signal and digital data are consistently transmitted from the CCD, thereby overcoming such problems.
- the compression method may be M-JPEG, MPEG-4 or H.264 method according to the application of the product.
- the compressed video signal is stored in the memory 180.
- the image transmitting unit 100 of the system according to the present invention includes a host processor 150.
- the host processor 150 is a high-performance FPGA processor suitable for performing binary CDMA functions, preferably a processor having an ARM7 core. Do.
- embedded Linux supports booting according to the boot mode of the binary CDMA baseband processor 160, and binary CDMA including binary CDMA wireless communication technology.
- an application program that can transmit and receive video and audio compressed data using the baseband processor 160, maintain a wireless reach distance, and guarantee the quality of wireless communication between transmitting and receiving devices, especially between multiple devices in a short distance.
- the embedded Linux also controls the A / V codec 140 to control resolution, compression quality, compression speed, and the like, and various parameters inside the image pickup device 110, for example, Iris, Day & Night, WDR, and video. It also facilitates installation by controlling features such as reversal and PTZ (high-definition TV-based high-performance zoom) features and facilitating the implementation.
- a / V codec 140 controls the A / V codec 140 to control resolution, compression quality, compression speed, and the like, and various parameters inside the image pickup device 110, for example, Iris, Day & Night, WDR, and video. It also facilitates installation by controlling features such as reversal and PTZ (high-definition TV-based high-performance zoom) features and facilitating the implementation.
- transmission data should be light and stable in size, and the degradation or loss of data should be minimized during RF transmission. While this deterioration and loss cannot be avoided, the present invention can completely solve such existing disadvantages through batch processing of digital data.
- the application program may be mounted in the flash memory 190 to control the implementation of upgrade and differentiated services between customers.
- a binary CDMA baseband processor 160 for modulating the compressed video data under the control of the host process 150 in a binary CDMA scheme and outputting the modulated image data to the RF transmitter 170 is mounted.
- the binary CDMA baseband processor 160 receives the image data (video signal) stored in the memory 180 after being compressed by the A / V codec 140, encodes (encodes) and binarizes the time division multiple access signal.
- the modulated waveform is output to the RF transmitter 170.
- the RF transmitter 170 transmits an RF signal of 2.4 GHz band modulated by binary CDMA.
- the binary CDMA modulated signal transmitted from the RF transmitter 170 is received through the image receiver 200 as shown in FIG. 2.
- the image receiver 200 is provided with an RF receiver 210.
- the RF receiver 210 receives a 2.4 GHz RF signal modulated by binary CDMA, and 1: 1 (receives a signal from a camera module incorporating one binary CDMA into one receiver) depending on the device used. 4 (receive signal from camera module with 4 binary CDMA built into 1 receiver), 1: 8 (receive signal from camera module with 8 binary CDMA built into 1 receiver), etc. Accordingly, the image post processor 250 to be described later determines the video encoder number.
- the data transferred on the ARM7 core is already compressed with codec, so it can be directly outputted, played back, and saved without any codec processing. Being able to implement a wireless system increases its efficiency and significantly improves cost and quality.
- the image receiver 200 also includes the binary CDMA baseband processor 220 described above and a host processor 230 controlling the same.
- the demodulated and decoded video signal is restored to M-JPEG, MPEG-4, or H.264 according to a method compressed by the transmitter through the A / V codec 240.
- the reconstructed image is output to a separate BNC (or RCA) connector by making video and audio output into 1 channel, 4 channel, 8 channel, etc. according to the number of devices wirelessly connected through the image post-processing unit 250. .
- a combination of images may be separately output to the monitor as needed, and the output image signal may be in the form of an analog composite image signal that can be directly input to the monitor.
- the RF receiver 210, the binary CDMA baseband processor 220, and the host processor 230 may include a PC card. (260) form (PCMCIA, etc.), the PC card 260 is mounted on the PC 270, the mainboard of the PC 270, the A / V codec 240 connected to them, the image post-processing unit It is possible to mount the 250 so that it can be easily applied not only to stand-alone form but also to a PC as a basic specification.
- PC card. (260) form PCMCIA, etc.
- the signal by processing the image taken by the image capturing device with a built-in binary CDMA in a digital manner rather than analog, the signal by transmitting to a desired wireless device through a binary CDMA wireless communication technology It is expected that its utilization will be increased because it has the advantage of being able to transmit quickly and remotely while maintaining excellent quality characteristics without distortion or quality deterioration.
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Claims (5)
- CCD/CMOS 카메라 모듈로 이루어지고, 촬상된 디지털 영상신호를 CCIR601 또는 CCIR656 그대로 출력하는 영상촬상소자와; 상기 영상촬상소자에서 출력된 디지털 영상신호를 선명하게 처리하는 영상전처리부와; 상기 영상전처리부에서 처리된 영상신호를 압축 가능한 신호로 바꾸는 디지털영상처리부와; 상기 디지털영상처리부에서 출력된 영상신호를 영상 및 음성 압축하는 송신측 A/V 코덱과; 상기 영상촬상소자 및 디지털영상처리부, 송신측 A/V 코덱을 제어하고 바이너리 CDMA 기능을 수행하는 프로세서로서 임베디드 리눅스를 O/S로 탑재한 송신측 호스트프로세서와; 상기 송신측 호스트프로세서의 제어하에 송신측 A/V 코덱에 의해 압축된 영상신호를 부호화하고 이진화시킨 후 시분할다중접속 신호 파형으로 변조시키는 송신측 바이너리 CDMA 베이스밴드 프로세서와; 상기 송신측 바이너리 CDMA 베이스밴드 프로세서로부터 출력된 변조 신호를 2.4GHz RF신호로 송신하는 RF송신부로 이루어진 영상전송부와;상기 RF송신부로부터 송신된 RF신호를 수신하는 RF수신부와; 상기 RF수신부로부터 RF신호를 입력받아 복조하고 복호화하는 수신측 바이너리 CDMA 베이스밴드 프로세서와; 상기 수신측 바이너리 CDMA 베이스밴드 프로세서를 제어하는 수신측 호스트프로세서와; 상기 수신측 호스트프로세서의 제어하에 복조되고 복호화 된 영상신호의 압축을 해제하여 영상 및 음성을 복원하는 수신측 A/V 코텍과; 상기 수신측 A/V 코덱을 통해 복원된 영상신호를 무선연결된 기기의 수에 따라 영상 및 음성을 모니터에 곧바로 입력가능한 아날로그 영상신호로 출력하는 영상후처리부로 이루어진 영상수신부;로 구성된 것을 특징으로 하는 영상촬상소자를 직접 연결한 바이너리 CDMA 영상 송수신 시스템.
- 청구항 1에 있어서;상기 영상전송부에서 상기 영상전처리부는 12bit AD IC를 이용하여 처리하는 것을 특징으로 하는 영상촬상소자를 직접 연결한 바이너리 CDMA 영상 송수신 시스템.
- 청구항 1에 있어서;상기 송신측 A/V 코덱 및 수신측 A/V 코덱에서 사용되는 압축방식은 M-JPEG, MPEG-4, H.264 중 어느 하나인 것을 특징으로 하는 영상촬상소자를 직접 연결한 바이너리 CDMA 영상 송수신 시스템.
- 청구항 1에 있어서;상기 영상수신부에서 상기 RF수신부는 사용되는 기기에 따라 1:1(1대의 수신기로 1대의 바이너리 CDMA를 내장한 카메라모듈에서 오는 신호 수신), 1:4(1대의 수신기로 4대의 바이너리 CDMA를 내장한 카메라모듈에서 오는 신호 수신), 1:8(1대의 수신기로 8대의 바이너리 CDMA를 내장한 카메라모듈에서 오는 신호 수신)으로 구분되고, 이 구분에 따라 상기 영상후처리부에서는 비디오 인코더 숫자를 결정하는 것을 특징으로 하는 영상촬상소자를 직접 연결한 바이너리 CDMA 영상 송수신 시스템.
- 청구항 1에 있어서;상기 영상수신부에서 수신측 A/V 코덱과 영상후처리부는 PC의 메인보드에 탑재되고, RF수신부 및 바이너리 CDMA 베이스밴드 프로세서, 호스트프로세서는 PC카드 형태로 제작된 후 상기 PC에 실장되어 영상송신부로부터 송신된 영상신호를 수신처리하는 것을 특징으로 하는 영상촬상소자를 직접 연결한 바이너리 CDMA 영상 송수신 시스템.
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US13/695,876 US8867516B2 (en) | 2010-05-13 | 2010-10-28 | Binary CDMA image-transceiving system directly connected to an image capture device |
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KR101707663B1 (ko) | 2016-08-24 | 2017-02-17 | 정재훈 | Cctv 카메라를 이용한 영상 이미지 퍼즐 보안 전송 시스템 및 그 제어방법 |
CN106448027A (zh) * | 2016-12-15 | 2017-02-22 | 湖南纽思曼导航定位科技有限公司 | 一种智能安防设备 |
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JP3406867B2 (ja) * | 1999-09-29 | 2003-05-19 | 株式会社東芝 | 移動通信端末装置 |
CN1194484C (zh) * | 2003-01-30 | 2005-03-23 | 张健 | 一种可视化家居安防系统和进行实时监控、传输的方法 |
KR100598494B1 (ko) * | 2003-02-11 | 2006-07-11 | 정연경 | 씨디엠에이모듈을 내장한 무선카메라 및 이를 이용한동영상정보전송시스템 |
KR101038489B1 (ko) * | 2003-03-05 | 2011-06-01 | 삼성테크윈 주식회사 | Cdma 통신망을 이용한 영상 전송장치 및 방법 |
JP4448039B2 (ja) * | 2005-01-26 | 2010-04-07 | キヤノン株式会社 | 撮像装置及びその制御方法 |
US20070189621A1 (en) * | 2006-02-15 | 2007-08-16 | Aten International Co., Ltd | Image transmission system |
US20090290038A1 (en) * | 2007-08-06 | 2009-11-26 | Nikon Corporation | Electronic camera |
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- 2010-10-28 WO PCT/KR2010/007441 patent/WO2011142513A1/ko active Application Filing
- 2010-10-28 US US13/695,876 patent/US8867516B2/en active Active
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KR100615956B1 (ko) * | 2003-02-11 | 2006-08-28 | 정연경 | 씨디엠에이모듈을 내장한 무선카메라를 이용하여 양방향 영상정보전송서비스를 수행하는 방법 |
KR20080035894A (ko) * | 2006-10-20 | 2008-04-24 | 노인철 | CDMA,HSDPA,WiBro의 무선통신망을이용하여 PDA를 이용한 영상,음성,그리고 GPS좌표를 실시간 전송 |
KR100858444B1 (ko) * | 2007-07-24 | 2008-09-12 | 주식회사이노텔레콤 | 이진부호분할다중접속 무선통신기반 웹 카메라시스템 |
KR20090069491A (ko) * | 2007-12-26 | 2009-07-01 | 주식회사 유엠비컴 | 바이너리 cdma 모뎀이 내장된 보안감시 카메라 시스템 |
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WO2016195170A1 (ko) * | 2015-05-29 | 2016-12-08 | (주)동연시스템 | 바이너리 cdma와 아리아 암호화를 이용한 네트워크 카메라 |
Also Published As
Publication number | Publication date |
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CN102907006B (zh) | 2014-09-10 |
US20130057711A1 (en) | 2013-03-07 |
CN102907006A (zh) | 2013-01-30 |
KR100990305B1 (ko) | 2010-10-26 |
US8867516B2 (en) | 2014-10-21 |
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