Haptic Packet Encoding Using Body Model Position Data
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Solution Overview
Problem
Current haptic technologies, such as those defined by the MPEG-V standard, fail to account for human perceptual specificity and often encapsulate redundant data, leading to inefficient bandwidth usage when combining haptics with audio-visual content.
Innovation Solution
A method for encoding and decoding haptic effects that uses a body model to determine which parts of the user's body are impacted by the haptic effect, reducing data transmission by including only necessary information and using a set of attributes to specify dependency on the user's position and a reference position, thereby optimizing bandwidth usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If MPEG-V standard is used to describe haptic effects, then a high-level description of haptic effects is provided, but redundant or useless data is encapsulated consuming too much bandwidth
Solution Approach 1:
The patent extracts only the essential haptic effect parameters needed for accurate reproduction, removing redundant data from the MPEG-V standard description. By identifying and retaining only critical attributes (such as vibration frequency, amplitude, and duration), the system reduces bandwidth consumption while preserving haptic effect quality.
Solution Approach 2:
The patent applies local quality by describing haptic effects with position-specific parameters tailored to different body parts. Instead of using a generic high-level description, the system adapts the level of detail and parameter selection to the specific anatomical location being stimulated, reducing overall data requirements while maintaining local accuracy.
2Adaptability or versatility
If MPEG-V standard is used to describe haptic effects, then a standardized workflow is provided, but human perceptual specificity and audio-visual content specificity are not taken into account
Solution Approach 1:
The patent introduces dynamics by making the haptic effect description adaptive rather than static. The system dynamically adjusts haptic parameters based on the audio-visual content being delivered and the user's perceived position, allowing the standardized workflow to accommodate real-time variations in perceptual requirements and content specificity.
Solution Approach 2:
The patent applies parameter changes by modifying haptic effect parameters based on audio-visual content characteristics and user position. Instead of using fixed MPEG-V parameters, the system adjusts frequency, amplitude, and other haptic attributes to match the specific perceptual requirements of different content types and viewing positions.
3Reliability
If haptic effects are combined with audio-visual content, then immersion is enhanced, but bandwidth consumption increases due to redundant data transmission
Solution Approach 1:
The patent extracts only the haptic parameters essential for creating immersion, eliminating redundant data that would otherwise increase bandwidth consumption. By identifying and transmitting only critical haptic attributes needed for perceptual realism, the system maintains high immersion quality while reducing network load.
Data Source
Figure 1A~1B
Figure 2
Figure 3~4B
AI summary
A method of encoding a packet (214) comprising data representative of a haptic effect, the haptic affect being associated with an immersive content. The method comprises adding a first information in the packet (214), the first information being representative of a dependency of said haptic effect with regard to a position of a body model in relation to the immersive content; adding a second information in the packet, the second information being representative of at least a first part of the body model targeted by the haptic effect. A method for decoding the packet (214) and corresponding devices are also recited.