Part 2: Humanoid animation (HAnim) motion data animation

3 Terms, definitions, acronyms, and abbreviations

# 3.1 Terms and definitions

For the purposes of this document, the following terms and definitions apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at www.iso.org/obp

— IEC Electropedia: available at www.electropedia.org

## 3.1.1
channel

motion-capture transformation parameter

Note 1 to entry: Each channel represents a degree of freedom for transformation. For example, there are three channels at an elbow joint for motion-capture.

## 3.1.2
frame

electronically coded still image

## 3.1.3
frame time

time for displaying a still image

## 3.1.4
human behaviour

specific motions that represent movement possible in a human being

## 3.1.5
inverse kinematics
IK

mathematical process of recovering the movements of an object in the world from some other data

## 3.1.6
motion-capture
mocap

process of recording the articulated movement of objects or people

## 3.1.7
motion-capture data

set of changes in position and orientation, corresponding to a specific skeleton, that result from motion-capture operations

## 3.1.8
motion-capture figure

human (or other) figure that is the original source of motion-capture data being sensed

## 3.1.9
motion data

set of changes in position and orientation that embodies a full set of motion for all HAnim joints being animated

## 3.1.10
motion data animation

processing of motion data to generate animation sequences for HAnim figures

## 3.1.11
motion definition

specific change of position or orientation of an HAnim joint

## 3.1.12
motion editor

program that can modify and display the motion of an HAnim figure by adjusting the motion parameters

## 3.1.13
motion parameters

set of variables that control the actions of a single motion definition

## 3.1.14
motion sensor

sensor that detects positional and orientation changes in the motion-capture figure

## 3.1.15
motion viewer

program that allows motion-capture data to be displayed as an animation of HAnim figures

## 3.1.16
rigging

process of connecting the HAnim figure with the animation controls

# 3.2 Acronyms and abbreviations

For the purposes of this document, the following expansion of acronyms and abbreviations apply.

Acronym or Abbreviation | Expansion | Notes
--- | --- | ---
BVH | BioVision Hierarchy | Named after BioVision Hierarchy, a commonly used motion-capture format.
HAnim | Humanoid Animation | This standard is published as ISO/IEC 19774.
X3D | Extensible 3D | This standard is published as ISO/IEC 19775.