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Realistic 3D Fluid Scene Synthesis Method with Spatiotemporal Continuity

A synthesis method and continuous technology, applied in the field of realistic three-dimensional fluid scene synthesis with time-space continuity, can solve problems such as poor real-time performance, poor sense of reality, and limited scale

Inactive Publication Date: 2017-02-15
EAST CHINA NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a realistic three-dimensional fluid scene synthesis method with space-time continuity for the problems of poor realism, weak real-time performance, and limited scale in the prior art. Real-time synthesis of large-scale fluid scenes that retain the global characteristics of the original video

Method used

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  • Realistic 3D Fluid Scene Synthesis Method with Spatiotemporal Continuity
  • Realistic 3D Fluid Scene Synthesis Method with Spatiotemporal Continuity
  • Realistic 3D Fluid Scene Synthesis Method with Spatiotemporal Continuity

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Embodiment

[0150] This embodiment uses 54ab110, 649cf10, 649ci10, 649cj10, 649dc10, 649dd10, 649de10, 649df10, 649dg10, 649dh10, and 649ea10 in the DynTex dynamic texture library for experiments. The calculation was performed on a PC under the Windows7 operating system, and the hardware configuration was 2.66GHz Intel Core(TM)2Duo CPU and 4GBRAM.

[0151] 1) Use the existing SFS-based fluid reconstruction method to recover the surface height information of a frame of fluid.

[0152] 2) Calculate the height gradient of each particle according to formula (6), and enhance the height gradient by formula (7), where k

[0153] Is the enhancement factor, and the value is 100.

[0154]

[0155] Where g h Represents the height gradient of each particle, h s (x,y) represents the height of each particle, Represents the particle at that point

[0156] The difference of height information in the x-axis direction, Indicates the height difference of the height information of the point particle in the y-axis d...

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Abstract

The invention discloses a method for synthesizing three-dimensional fluid scenes with the sense of reality and space-time continuity. The method includes the steps that firstly, height values of fluid particles are calculated according to a fluid reestablishment method based on SFS, and then hierarchical division is conducted on the three-dimensional scenes according to height gradients; fluid wave components are extracted from different layers respectively and clustered, so that space continuity is guaranteed; class components acquired from the corresponding layers are rearranged and repositioned, and the three-dimensional fluid scenes with the sense of reality are synthesized; smoothing for height information is adopted in a transition region of the synthesized scenes; Hash mapping tables of height and color are established, and color remapping is conducted on the appearance of the particles in the transition region; height information, color information and texture coordinate information of the particles are transmitted, and then a synthesis result with space-time continuity is acquired. When the method is used for synthesizing multiple fluid scenes with challenges and fluid scenes with different scales, the satisfying synthesis result can be acquired.

Description

Technical field [0001] The invention relates to a method for synthesizing a large realistic fluid scene in a three-dimensional space, which synthesizes a large-scale three-dimensional virtual fluid scene according to the height information of a certain frame of a fluid video. The fluid scene synthesized in real time has temporal and spatial continuity and realism, and can maintain The global characteristics of the original video. Background technique [0002] Fluid natural landscapes can be seen everywhere in the objective world, and fluid scene synthesis is widely used in computer animation, computer games, film and television special effects, military management and other fields. At present, there are two main methods for generating fluid natural landscapes: simulation rendering methods based on the laws of fluid physical motion in graphics and the construction of fluid scenes based on video images. In the past few decades, physics-based research methods have been an active re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T17/00
Inventor 全红艳宋雅慧俞铭琪
Owner EAST CHINA NORMAL UNIV