Milestone XProtect Express 2014 Manual de usuario descargar pdf (Pagina 188)

Milestone XProtect

®

Express 2014

Administrator's Manual

www.milestonesys.com

188

Glossary of Terms

A computer connected to a TCP/IP network. A

host has its own IP address, but may—

depending on network configuration—also

have a host name to make it easily

identifiable.

Hotspot

Particular position for viewing enlarged and/or

high quality video in the Smart Client.

HTTP

HyperText Transfer Protocol—standard for

exchanging files across the internet. HTTP is

the standard used for formatting and

transmission of data on the World Wide Web.

I

I/O

Input/Output: refers to the communication

between a computer and a person. Inputs are

the signals or data received by the system and

outputs are the signals or data sent from it.

I-frame

Short name for intra-frame. Used in the MPEG

standard for digital video compression. An I-

frame is a single frame stored at specified

intervals. The I-frame records the entire view

of the camera, whereas the frames that follow

(P-frames) record only the pixels that change.

This helps greatly reduce the size of MPEG

files. An I-frame is similar to a keyframe.

Image Server

A service that handles access to XProtect

Express for remote users logging in with Smart

Client The Image Server service does not

require separate hardware as it runs in the

background on the XProtect Express server.

The Image Server service is not configured

separately as it is configured through XProtect

Express 's Management Application.

IPIX

A technology that allows the creation and

viewing of 360-degree panomorph (fisheye)

images.

J

JPEG

(Also JPG) Joint Photographic Experts

Group—widely used lossy compression

technique for images.

K

Keyframe

Used in the MPEG standard for digital video

compression, a keyframe is a single frame

stored at specified intervals. The keyframe

records the entire view of the camera, whereas

the frames between the keyframes record only

the pixels that change. This helps greatly

reduce the size of MPEG files.

M

MAC address

Media Access Control address—12-character

hexadecimal number uniquely identifying each

device on a network.

Matrix

A feature that enables the control of live

camera views on remote computers for

distributed viewing. Once configured, you can

view Matrix-triggered live video in XProtect

Smart Client.

Matrix recipient

A computer equipped with XProtect Smart

Client software and therefore capable of

displaying Matrix-triggered live video.

MJPEG

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