Virtual Space Cell-Based Avatar Processing for Delay Reduction
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Solution Overview
Problem
Existing VR social networking services face delays and unnatural image rendering due to increased avatar information processing and transmission, which are not effectively addressed by existing techniques that prioritize transmission rates or image substitution.
Innovation Solution
An information processing device that divides a virtual space into reference, peripheral, and distant cells, processing and transmitting spatial information with varying levels of detail to reduce overall information load, using less detailed information for distant cells to minimize processing and transmission load.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the number of participating avatars is increased, then the VR space becomes more lively and engaging, but the information processing time and communication time increase, causing delays and stopping avatar movement
Solution Approach 1:
The virtual space is divided into multiple cells, and avatars are segmented into different groups based on their spatial relationships (first other avatars in the same cell, second other avatars in adjacent cells, third other avatars in non-adjacent cells). This segmentation allows differential information transmission strategies to be applied to different groups, reducing the overall information processing load while maintaining engagement.
Solution Approach 2:
Different information transmission qualities are applied to different avatar groups based on their distance from the user. First other avatars receive full positional and action information, while second and third other avatars receive reduced or no positional information. This local quality differentiation reduces communication time and processing load for distant avatars while maintaining high quality for nearby avatars.
2Loss of time
If the transmission rate for distant avatars is increased to reduce delay, then the delay is reduced, but the amount of information to be transmitted remains the same, so the fundamental problem is not solved
Solution Approach 1:
The information transmission parameters are changed based on avatar distance. For third other avatars (distant), the transmission of positional information is reduced or eliminated, and action information transmission is limited. This parameter change reduces the quantity of information transmitted for distant avatars, fundamentally addressing the problem rather than just increasing transmission rate.
3Loss of time
If an image of a previous frame is substituted for a delayed high-resolution image, then the delay is prevented, but an unnatural image may be obtained
Solution Approach 1:
Instead of substituting previous frame images for all delayed avatars, the patent applies partial action by selectively reducing information transmission for distant avatars (second and third other avatars). This prevents the need for image substitution while avoiding unnatural appearances, as the reduced information for distant avatars is insufficient to create noticeable delays in the first place.
Data Source
AI summary
An information processing device (1) includes at least one processor, the at least one processor carrying out: an acquisition process for acquiring first spatial information indicating a reference cell serving as a cell in which a user is located in a virtual space, second spatial information indicating the virtual space located around the reference cell, and third spatial information indicating the virtual space located more distantly than a peripheral cell; and a spatial information process including a first process in which the first spatial information is used, a second process in which the second spatial information is used, and a third process in which the third spatial information is used and which involves a smaller processing load than the second process.