ISO/IEC DIS 23005-2

Description / Abstract: The scope of MPEG-V Part 2 Control information, covers the data formats for communicating between the adaptation engine and the capability/preference descriptions of actuators/sensors as being illustrated as the yellow boxes in Figure 1, which characterize devices and users, respectively such as Description language and Vocabularies. The user’s sensor and actuation preferences, actuator capabilities, and sensor capabilities are within the scope of MPEG-V Part 2 whereas the adaptation engine is not within the scope of MPEG-V standards. The control information including the user's actuation preference information, the user’s sensor preference information, actuator capability description, and sensor capability description can be used for fine tunings of the sensed information and the actuator command for the control of virtual/real worlds by providing extra information to the adaptation engine.

MPEG-V Part 2 Control information specifies syntax and semantics of the tools required to provide interoperability in controlling devices (actuators and sensors) in real as well as virtual worlds. This Part specifies the Control Information Description Language (CIDL) as an XML Schema-based language which enables one to describe a basic structure of control information. The Device Capability Description Vocabulary (DCDV) specifies XML representation for describing capabilities of actuators such as lamps, fans, vibrators, motion chairs, scent generators, etc. For instance, the maximum wind speed (30 m/s), the number of wind levels (5 levels) of a fan can be defined with a description of DCDV. The Sensor Capability Description Vocabulary (SCDV) specifies interfaces for describing capabilities of sensors such as a light sensor, a temperature sensor, a velocity sensor, a global position sensor, an intelligent camera sensor, etc. For instance, capabilities of a global position sensor (e.g., the maximum operating temperature of 90 degrees Celsius, minimum operating temperature of -30 degrees Celsius, sensitivity of 0.01 degrees, and the position accuracy of 0.01 degree) can be defined with a description of SCDV. The Sensory Effect Preference Vocabulary (SEPV) specifies interfaces for describing preferences of individual user on specific sensorial effects such as light, wind, scent, vibration, etc. For instance, the maximum intensity of a vibration chair can be defined as 600 Hz with a description of SEPV. The Sensor Adaptation Preference Vocabulary (SAPV) specifies interfaces for describing preferences of sensor of individual user on individual type of sensed information. For instance, a light sensor adaptation can be achieved to detect between the maximum value of 400 (lux) and minimum value of 10 (lux).