Samsung SNC-B2331(P) user manual Terminology, Cavlc, Bitrate Control CBRConstant Bitrate

Page 60

appendix

TERMINOLOGY

yGOP : The default is 15, and if set to 15, one I-Frame will be output per 15 frames as one I-Frame and 14 P-Frames constitute the GOP.

The lower the GOP size is, the better the quality is; however, the bit rate as well as the data size will increase, causing a lower of the fps. GOP(Group of Pictures) is a set of video frames for MPEG4 and H.264 format compression, indicating a collection of frames from the initial I-Frame (key frame) to the next I-Frame. GOP consists of 2 kinds of frames: I-Frame and P-Frame. I-Frame is the basic frame for the compression, also known as Key Frame, which contains one complete image data. P-Frame contains only the data that has changed from the preceding I-Frame.

yEntropy coding : Data transfer technology used to reduce the compression loss from encoding.

-CAVLC (Context-adaptive variable-length coding): Records a higher compression loss rate than CABAC.

-CABAC (Context-adaptive binary arithmetic coding): Shows a lesser compression loss than

CAVLC.

yBitrate Control

-CBR(Constant Bitrate)

This will transfer video data in an equal size at all times, regardless of the video complexity. The video quality may be deteriorated, depending on the video complexity.

-VBR(Variable Bitrate)

The amount of video data to transfer may differ, depending on the video complexity. This enables receiving video data in an equal quality at all times.

yTTL : TTL stands for “Time To Live”, which you can specify to prevent loss of data packet that passes through multiple-staged routers. Each router decreases the TTL value by one each time a packet passes it through; If the TTL value reaches 0, the packet cannot further pass through a router.

yTCP : It is a general purpose protocol used for transmission that requires reliability. With constant communication between the sender and recipient, it provides high reliability against transmission data loss; however, it has imitation to transmit a large amount of data in real time at a high speed.

It enables reliable data transmission over xDSL and cable network at a relatively slow speed.

yUDP (Unicast): It refers to a system that transmits data between only one transmitter and one receiver (1:1).

yUDP (Multicast): It refers to the data transfer protocol in one-to-many (1:N) between the trans- mitting and receiving terminals; although it alleviates the network load, it requires <Multicast> router.

For more information such as whether the network over which the camera is installed sup- ports <Multicast>, contact the network administrator.

yUDP : It is a protocol appropriate to transmit a large amount of data such as multimedia data at a high speed. However, with its nonconnection structure, it records a higher transmission efficiency than TCP especially in a high LAN environment faster than 100Mbps.

60_ appendix

Page 59 Page 61
Image 60
Page 59 Page 61
Contents Network Camera Overview English Overview FCC Statement Important Safety Instructions Contents Connecting to the camera LoginInstalling ActiveX Using the Live ScreenProduct Features Recommended PC SpecificationsCompatible PoE Switches Compatible IP RoutersIP Installer CD WHAT’S IncludedLens Options CS LensConnector AT a GlanceFront Side DescriptionPower Rear SideSystem GNDDisconnect the power before proceeding Mounting the LensMounting the CS lens Mounting the C lensConnecting the Auto Iris Lens connector FocusingConnecting with Other Device Connecting to the monitorPower Supply Network ConnectionConnecting to the I/O port box Alarm I/O Wiring DiagramHOW to USE the Keyboard Controller You can configure the camera settings using the Web ViewerFactory Defaults Main MenuProfile Camera Setup Camera IDIris Motion DNRShutter SENS-UPYou can specify a recording mode according to the scene DAY/NIGHTWhite BAL Select Camera SET DAY/NIGHTDigital Zoom DetailAGC Color SUP ReverseZone Setup Privacy ZoneFactory Default OthersOSD Color You can set the font color of the user interface The camera type may different, depend on the video signal System InfoLanguage You can check the system informationNetwork connection and setup Network Connection and Setup Setting the IP Router Connecting the Camera Directly to Local Area Networking Connecting to the camera from a local PC in the LANIP Address Setup Buttons used in IP InstallerStatic IP Setup Manual Network SetupURL Ddns registration has failedNetwork connection and setup Auto Network Setup Dynamic IP Setup Dynamic IP Environment SetupPort Range Forward Port Mapping Setup Connecting to the Camera from a Shared Local PCManual Port Range Forwarding Connecting to the Camera from a Remote PC VIA the Internet Connecting to the Camera Using URLConnecting via URL If the Http port is other than Normally, you wouldLogin To check the Ddns addressInstalling Activex For Windows XP Service Pack 2 usersClick Install ActiveX Control Security warning popup appears, click InstallUsing the Live Screen Backup To capture the snapshotTo print out the screenshot To record a video Click on the scene to recordRecorded space, recording will be forcibly ended Click OK Accessing the Setup Screen Setup screen appearsDefault Setup To configure the video settingsContrast Adjust the contrast from To configure the IP settings Click Basic User User setup window appears To set the user accountEnglish System Setup When done, click Apply Selected language will be appliedTo set the display language To set the date/timeTo update the software To check the log informationSelect System Log Log information list appears To reset the system To set the HttpsOverlay Setup To set the textYou can display text on the screen Event Setup To set the event transfer functionVerified will be displayed English To set an alarm image FTP transfer The image is sent to the specifi ed FTP addressTo set the alarm input Select Event Motion Motion Detection setup window appearsTo set the motion detection function To set a motion area Motion Detection function will operate on the selected area Network Setup To set the video transfer mode To set the scheduled transfer To set the Ddns DAY Mode ITSGaming ALCTerminology CavlcBitrate Control CBRConstant Bitrate Specifications CS/C RAMDSP 4CIFSetup NtscHTTPS, SSL, Dhcp ARP, DNS, DDNS, VsipPower PoE Power over Ethernet~90% Dimension W72 X D139 X H60 Weight About 300g About 7WFrame Rate Ntsc EstimationHPelGOP size15 MPEG4 4CIF 30 FPS 15 FPS FPSMPEG4 VGA 264 VGA MPEG4 CIF 264 CIF Frame Rate PAL 25 FPS 13 FPS MPEG4 VGA Kbps 17 FPS MPEG4 CIF 264 CIF Troubleshooting Problem SolutionVerify the settings in the following sequence NTP must be properly configuredMotion Detection Feature must be enabled Alarm Video Transmission must be enabledGPL/LGPL Software License GNU General Public LicensePreamble We protect your rights with two stepsProgram, and can be reasonably Page Page No Warranty How to Apply These Terms to Your New ProgramsEND of Terms and Conditions Preamble Terms and Conditions Source Code Basic PermissionsProtecting Users Legal Rights From Anti-Circumvention Law Conveying Verbatim Copies Conveying Modified Source VersionsConveying Non-Source Forms Installed in ROM Additional Terms Acceptance Not Required for Having Copies Automatic Licensing of Downstream RecipientsPatents Valid No Surrender of Others FreedomUse with the GNU Affero General Public License GNU Lesser General Public License END of Terms and ConditionsPreamble Page Page AAccompany the work with the complete corresponding machine Page Page How to Apply These Terms to Your New Libraries OpenSSL License No Event Shall the OpenSSLOriginal SSLeay License Copyright C1995-1998 Eric YoungAnd/or other materials provided with the distribution
Top Page Image Contents