Vivotek FD6112V, FD6122V manual For Best Real-time Video Images, Only Quality Images Will Do

Page 25

For Best Real-time Video Images

To achieve good real-time visual effect, the network bandwidth should be large enough to allow a transmission rate of greater than 20 image frames per second. If the broadband network is over 1 Mbps, set the “Fix bit rate” to 1000Kbps or 1200Kbps, or set “Fix quality” at the highest quality. The maximum frame rate is 25 fps in a 50Hz system and 30 fps in a 60Hz system. If your network bandwidth is more than 384Kbps, you can fix the bit rate according to your bandwidth and set the maximum frame rate to 25 fps or 30 fps. If you are shooting fast-moving images, you may want to slow the maximum frame rate down to 20 fps in order to lower the rate of data transmission. This allows for better video quality and the human eyes cannot readily detect the differences between those of 20, 25, or 30 frames per second. If your network bandwidth is below 384 Kbps, set the “Fix bit rate” according to your bandwidth and try to get the best performance by fine-tuning with the “Maximum frame rate”. In a slow network, greater frame rate results in blur images. Another work-around is to choose “Half” in the “Size” option for better images, or “Halfx2” for a larger image view. Video quality performance will vary somewhat due to the number of users viewing on the network; even when the parameters have initially been finely tuned. Performance will also suffer due to poor connectivity because of the network’s burst constraint.

In multi-user environment, the user who has poor network performance will receive only the key frame in MPEG4 format. Try to reduce the key frame interval can improve the frame rate for poor network performance, but the penalty is the increasing of network traffic. If the server is running on the Internet, select the “improve efficiency in the multi-user environment” will improve the efficiency in the multi-user environment.

Only Quality Images Will Do

To have the best video quality, you should set “Fix quality” at “Detailed” or “Excellent” and adjust the “Maximum frame rate” to match your network’s bandwidth. If your network is slow and you receive “broken” pictures, go to the HTTP protocol in “Connection type” and choose a more appropriate mode of transmission. The images may suffer a time delay due to a slower connection.

- 21 -

www.vivotek.com

T: 886-2-82455282

F: 886-2-82455532

Page 24 Page 26
Image 25
Page 24 Page 26
Contents Page Technical@vivotek.com Sales@vivotek.com Before You Use This Product Package Contents Table of Contents Appendix Smtp FTP886-2-82455282 886-2-82455532 Ethernet Connection Hardware InstallationMount the Camera 886-2-82455282 886-2-82455532 886-2-82455282 886-2-82455532 886-2-82455282 886-2-82455532 Software Installation 886-2-82455282 886-2-82455532 886-2-82455282 886-2-82455532 886-2-82455282 886-2-82455532 Installing Plug-in Initial Access to the Network CameraAdd Password to Prevent Unauthorized Access Check Network SettingsAuthentication How to UseMain Screen with Camera View Primary User’s CapabilitiesCamera view ConfigurationBoth Client Settings886-2-82455282 886-2-82455532 Fine-tuning for Best Performance Administrator’s CapabilitiesOnly Quality Images Will Do For Best Real-time Video ImagesSelect for Motion Jpeg Somewhere Between Real-time and Clear ImagesOpening Accounts for New Users Protect Network Camera by PasswordsProduct Demo for E-business Large-scale Service Demo on Multiple Sites Mid-scale ServiceBuild a Multimedia Web Attraction Site More Flexible Options for ViewersIf the web space has FTP service If the web space has no FTP service Image URL Build a Security Application Send Snapshots When Motion is Detected 886-2-82455282 886-2-82455532 Definitions in Configuration System Parameters User Group Administration 886-2-82455282 886-2-82455532 Edit User General Network SettingsStreaming Http886-2-82455282 886-2-82455532 Ddns & UPnP 886-2-82455282 886-2-82455532 Smtp Mail & FTP886-2-82455282 886-2-82455532 886-2-82455282 886-2-82455532 Video Codec Parameters 886-2-82455282 886-2-82455532 Contrast, Hue Image SettingsCamera Settings Audio 886-2-82455282 886-2-82455532 Motion Detection 886-2-82455282 886-2-82455532 Weekly Schedule Application SetupEvent Operation Sequential Operation FTP Naming rule of snapshot file886-2-82455282 886-2-82455532 Viewing System Log Factory DefaultViewing System Parameters Appendix TroubleshootingSoon as the second self-diagnostic starts Frequently Asked Questions 886-2-82455282 886-2-82455532 886-2-82455282 886-2-82455532 Overview URL commands of Network CameraStyle convention Get server parameter values General CGI URL syntax and parametersMethod GET/POST Example request IP address and it’s response Nosync Set server parameter valuesAvailable parameters on the server WirelessNetwork Camera With Pan/Tilt/ZoomYyyy/mm/dd Skip to invoke default serverHhmmss Blank 255.255.255.0 192.168.0.99Than 40 characters Mailto2 Text String 5002 5003120 For Ntsc only 3840008000 Save Directly save the adjust image Parameters Group CCD Ntsc & Cmos Script.vssx Application page CGI commandMethod GET/POST Sun Dihigh Query status of the digital input Drive the digital outputQuery status of the digital output Capture single snapshot Account management Privilege=dido&privilege=listen System logsConfiguration file System Information Preset Locations Networking Technical SpecificationsTechnology License Notice Electromagnetic Compatibility EMC
Top Page Image Contents