Pelco IXE Compression Standards, Resolution, Image Rate, Bit Rate, Frame Interval, Endura Signing

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Compression Standards

JPEG: A commonly used compression scheme, also known as MJPEG. JPEG has the least impact on the camera's processor but requires the most bandwidth.

H264: A new version of MPEG-4 compression used in high-definition video players such as Blu-rayand HD-DVD. H.264 is the most processor-intensive but requires the least amount of bandwidth.

Resolution

Resolution is the overall size of the image. Refer to the following table for the resolution capabilities of your camera model.

Table B. Available Camera Resolutions

1920 x 1080

640 x 480

 

 

1600 x 1200

640 x352

 

 

1280 x 1024

480 x 368

 

 

1280 x 960

480 x 272

 

 

1280 x 720

320 x 256

 

 

800 x 600

320 x 240

 

 

640 x 512

320 x 176

 

 

Image Rate

The image rate is the number of ips available for the video stream configuration. Available image rates are 30, 25, 24, 15, 12.5, 12, 10, 8, 7.5, 6, 5, 4, 3, 2.5, 2, and 1.

NOTE: The maximum image rate setting might not be obtainable due to the programmed compression standard and resolution of the stream (refer to Specifications on page 55).

Bit Rate

The bit rate is the quality of the video stream (rendered in kilobits per second). The higher the value, the higher the video quality and bandwidth required.

NOTE: When you change any of the video stream configuration settings, the camera automatically adjusts the bit rate. If you manually reduce the bit rate lower than the camera's automatic setting, the image quality might be reduced and the stream selection options might be limited.

I-frame Interval

This setting, also referred to as group of pictures (GOP), configures the number of partial frames that occur between full frames in the video stream. For example, in a scene where a door opens and a person walks through, only the movements of the door and the person are stored by the video encoder. The stationary background that occurs in the previous partial frames is not encoded because no changes occurred in that part of the scene; the stationary background is only encoded in the full frames. Partial frames improve video compression rates by reducing the size of the video. As the I-frame interval increases, the number of partial frames increases between full frames. Higher values are only recommended on networks with high reliability. This setting is only available with H.264 and MPEG-4 compression standards.

QoS (DSCP) Codepoint

QoS (DSCP) Codepoint is a code that allows the network to prioritize the transmission of different types of data. This setting is only available with H.264 and MPEG-4 compression standards.

NOTES:

If you are not familiar with DSCP, contact your network administrator before changing this setting.

Your network must be configured to use QoS. If you are unsure if your network is QoS aware, contact your network administrator.

Endura Signing

Enabling Endura signing allows an Endura system to authenticate video from an Endura recorded stream. This setting is only available with H.264 and MPEG-4 compression standards.

C2953M-A (5/09)

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Contents IXE Series Extended Platform Network Camera Page Contents Help Menu Log Off Menu Specifications List of Illustrations Radio and Television Interference Regulatory NoticesFrame Rate Notice Regarding User-Selected Options Video Quality CautionOpen Source Software Notice Getting Started DescriptionBUILT-IN Analytics ModelsCamera Layout Parts ListRemove Back Cover Product LabelPin InstallationC2953M-A 5/09 Attaching the 2.5 mm Monaural Headphone Plug Service CableCAT5 Cable WiringALARM, RELAY, and 24 VAC Connector Connecting Alarms Connecting a Relay DeviceAlarm Connections Operation Using a WEB BrowserAccessing the IP Camera Live Video page Icons Live VideoTake a Snapshot Select a StreamOpen the Stream in a NEW Window Maximize the Viewing AreaChanging the Screen Layout Multiscreen ViewSettings Page Menus SettingsChanging the Device Name General SettingsSystem TAB Reboot Camera Time SettingsRestore ALL Camera Defaults Configuring the Camera Date and Time SettingsGeneral Network TABChanging the Hostname Dhcp OnDhcp Off SSLGenerate Self-Signed Certificate Generate Certificate RequestSSH Orientation Imaging TABDigital Processing Auto Exposure ExposureAuto Exposure Manual Exposure Manual ExposureManual Day Night DAY NightAuto Day Night Auto Focus FocusManual Focus Tone MAP Auto White Balance White BalanceManual White Balance Video Streams TAB Select PresetCustom Configuration Compression Standards ResolutionImage Rate Bit RateGOP Structure Rate ControlProfile Creating a New User Users and Groups TABUsers Editing a User Deleting a User Creating a New Group GroupsDeleting a Group Editing a GroupGeneral Settings Events TAB Creating an Alarm Event SourceSources Creating a System Event SourceDeleting an Event Source Creating a Timer Event SourceEditing an Event Source Creating a Send Email Event Handler HandlersCreating an Upload Jpeg to FTP Server Event Handler Creating a Write Jpeg to SD Card Event HandlerCreating an Open/Close Relay Event Handler Example Handler Filter SetupEditing an Event Handler Deleting an Event HandlersLog Off Menu Help MenuGeneral SpecificationsElectrical MechanicalPhysical Analytics RequirementsEnvironmental C2953M-A 5/09 Page Product Warranty and Return Information
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