IEEE 3079-2020 pdf download

IEEE 3079-2020 pdf download.IEE E Standard for Head-Mounted Display (HMD)-Based Virtual Reality(VR) Sickness Reduction Technology.
stereoscopy: Three—dimensional vision with the illusion of depth from two—dimensional images using the visual difference of both eyes.
stitch: Technique to combine two or more videos to create 360-degree video and minimize the image distortion.
subjective measurement: Quantification of the user’s subjective experiences. In the study of cybersickness, subjective measures include scores on the Simulator Sickness Questionnaire (SSQ), Nausea scale, fast motion sickness scale (FMS). misery scale (MISC), etc.
three degrees of freedom (3DOF): Three rotational elements of moving objects in three dimensional space. The three degrees refer to the roll (x axis), pitch (y axis), and yaw (z axis) rotation operations on X, Y, and Z axes.
time-warping rendering: A technique in virtual reality (VR) that warps the rendered image before sending it to the display to correct for the head movement that occurred after the rendering. It is either used to reduce the latency or maintain the desired frame rate.
tracking sensor: A device for tracking the movement of the user to synchronize with the content. ultra high definition (UH D): A term created for marketing purposes to refer to at least 3840 x 2 160 resolution.
variable bit rate encoding (VBR encoding): An encoding method—as opposed to constant bit rate (CBR) encoding—where a codec’s output data rate is consumed inconsistently with respect to time.
vection: Visually induced illusions of self-motion experienced by physically stationary observers in a real environment or in a virtual environment.
vestibular system: The sensory system that provides a sense of bodily movement and balance. It also provides the spatial orientation for the purpose of coordinating movement.
video tracking: A computer vision technology for finding the position change of a specific object, such as a person, animal, or car in a video shot by a camera.
viewing angle: The maximum angle at which a display device may be viewed with acceptable visual performance, described by the angular range or viewing cone, and includes various viewing directions.
virtual reality (VR): Refers to any specific environment, situation, or technology that either simulates actual reality or creates virtual spaces and objects according to the imagination of humans using computer graphics or videos.
virtual reality (VR) fidelity: The level of similarity in sensation and perception between real and virtual environments.
virtual reality (VR) sickness (VRS): Svn: cybersickness.
virtual reality (VR) sickness level (VRSL): User levels for the intensity of VR sickness.
visually induced motion sickness (VIMS): Sensations and perceptions similar to traditional motion sickness with limited or no physical movement.
wireless head-mounted display (HMD) access distance: The distance from the virtual reality (VR) content server wireless module to the HMD wireless module, and within that distance the VR HMD should display without severe interruption.
Figure 1 shows the reference model for the HMD-based VR sickness—reducing technologies. However, the scope of this standard oniy covers VR sickness—reducing parameters for content design, assessment of VR sickness, measurement of motion-to-photon latency, and network constraint for VR content.
4.1.2 VR content design
This standard describes some of the best practices for the VR content design and implementation that can reduce the level of VR sickness. The content design parameters mentioned in this standard include content directing, scene capturing and management, human factors of the content users, head-mounted display (HMD) devices, and operational environment for playing VR content.
4.1.3 VR sickness assessment
This standard explains the methodology and procedures required to assess the level ofVR sickness experienced by the VR content service users. The methodology and procedure quantify the correlation between the VR sickness causing parameters and the VR sickness symptoms. The VR sickness causing parameters include content directing, content scene, human factor, scene capture, HMD device, and operational environment related parameters. VR sickness symptoms include nausea, eye fatigue, and disorientation.
4.1.4 Measurement and network requirements related to motion-to-photon latency
This standard introduces HMD-specific network topologies based on their use cases. Then, it suggests wireless transmission technology candidates either available now, or within two years, along with their performance specifications. Also, the capabilities of these technologies and the requirements are compared to explain the areas that already satisfy the demands for wireless HMD and the areas that require further development.