Vicon IX 2000 L Información técnica descargar pdf (Pagina 228)

Ghost marker

Glossary-12 Vicon MX Hardware System Reference

locked has circuits to isolate vertical

drive, horizontal drive, and subcarrier.

Vicon systems provide genlock

functionality to synchronize Vicon

cameras to the scan rate of incoming

video signals from an external PAL,

SECAM, or NTSC video source integrated

in the Vicon system. A Vicon MX system

also can act as the synchronization

master. Also see Datastation, MX Control,

NTSC, PAL, and SECAM.

Ghost marker Also known as ghost

trajectory. A spurious marker trajectory

produced by the reconstruction process.

A ghost marker is a false reconstruction

that appears as an additional trajectory

very close to an existing one over a short

duration. Also see Reconstruction and

Trajectory.

Global coordinate system The

coordinates defining the origin (0,0,0)

and the axes (x,y,z) of the world in the

context of the Vicon capture volume. Also

see Capture volume, Volume origin and

Workspace axes.

.gpo file General Purpose Output file.

An XML file with extension .gpo, which

specifies the characteristics of a

synchronization signal through the GPO

ports of an MX Control or MX Ultranet

unit. For example, .gpo files supplied with

the Vicon Reference Video system option

specify the relationship of the frame rate

of a connected reference video camera

with that of the MX Cameras. Also see

Frame rate, MX Camera, MX Control,

MX Ultranet, and Reference video.

Grayscale blob In Vicon MX systems,

the raw, 2D grayscale data MX Cameras

generate for reflections from objects in

the capture volume. Such data is

submitted as candidates to MX centroid-

fitting algorithms to determine which are

likely to be markers. Also see Blob and

Centroid fitting.

Grayscale data In Vicon MX, the

complete pixel and line information for a

grayscale blob. Also see Grayscale blob.

Ground Also known as earth. A point

that is assumed to be at a zero voltage

potential.

H

Hardy Spicer joint A 2 DOF joint with

two rotational degrees around two axes.

This joint type has two perpendicular

vectors defining the directions of the two

axes around which the joint can rotate.

Also see Ball joint, Degree of freedom

(DOF), Free joint, Hinge joint, and Slider

joint.

Hinge joint A 1 DOF joint with

rotational freedom around a single axis.

This joint has a single vector defining the

axis of the hinge. Also see Ball joint,

Degree of freedom (DOF), Free joint,

Hardy Spicer joint, and Slider joint.

Host PC The computer in a Vicon

system architecture that contains a

dedicated Ethernet port for Vicon system

communications and on which the core

Vicon application software is installed.

The host PC enables communications

between the Vicon application software

and other Vicon system components.

Additional network ports and Vicon

application or third-party software may

be installed on the host PC, depending

upon the computer specification. Also see

Vicon application software.

.hsf file Hardware Settings File. An XML

file with extension .hsf, which contains

hardware, system, and synchronization

settings that affect Vicon MX Cameras.

You can specify settings that are added to

the default HardwareSettings.hsf file

supplied with Vicon iQ (by default, under

C:\Program Files\Vicon\ViconiQ 2.5

\Config) Alternatively, you can save

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