Transcript
Page 1: Details:   Multiview video synthesis

Details: Multiview video synthesis Motion vector based video objects segmentation and tracking Feature based incomplete 3D structure video synthesizing Layered depth images based multiview video rendering

Semi-immersive MultiView display environment High efficiency Multiview Video Coding Disparity based multiview video coding View dependent multiview video predicting codec

Interactive multiview video streaming View switch

Time frozen moment Time continuous sweep

交互多视点视频 (Interactive Multiview Video )

Introduction

交互多视点视频( Interactive Multiview Video ): The next generation multimedia applications will be interactive and realistic based on network. In one hand, people want to be more active and participant to meet the requirement of personality, in the other hand, they hope to get realistic experience while viewing the scene or interacting with other people. This project is proposed to resolve the represent, interaction, codec and transmission of 3D interactive video, and implement the interactive network multimedia application in the near future with the stereo video and multi-view video technology putting into practicability. Objects: Viewpoint selecting and multi-view 3D image synthesizing High efficiency multi-view video codec algorithms Streaming technology for Multi-view video A prototype of multi-view video streaming system

清华信息科学与技术国家实验室 清华信息科学与技术国家实验室 普适计算研究部普适计算研究部

feature point matching triangulation

virtual video synthesizing by interpolation

feature point matching triangulation

virtual video synthesizing by interpolation

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DisparityMap

DisparityMap MPEG - 4

Encoder

MPEG - 4Encoder

MPEG - 4Decoder

MPEG - 4Decoder

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ReconstructedRight - image

PSNR

+

Residual Texture

Residual Texture

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ReconstructedResidual Texture

ReconstructedResidual Texture

DisparityEstimation

DisparityEstimation

Local -MPEG - 4Decoder

Local -MPEG - 4DecoderReconstructed

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Reconstructedleft- image

ReconstructedDisparity Map

ReconstructedDisparity Map

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Reconstructedleft- image

Reconstructedleft- image

ReconstructedDisparity Map

ReconstructedDisparity Map

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Encoder side

Decoder side

Coded left image

Coded Disparity map

Coded right imageLeft - imageLeft - image

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DisparityMap MPEG - 4

Encoder

MPEG - 4Encoder

MPEG - 4Decoder

MPEG - 4Decoder

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ReconstructedRight - image

PSNR

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Residual Texture

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ReconstructedResidual Texture

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DisparityEstimation

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Local -MPEG - 4DecoderReconstructed

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ReconstructedDisparity Map

ReconstructedDisparity Map

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Reconstructedleft- image

ReconstructedDisparity Map

ReconstructedDisparity Map

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CompensatedRight - image

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Encoder side

Decoder side

Coded left image

Coded Disparity map

Coded right image

Rate AllocationRate Allocation

Region Segmentation Region Segmentation

Multiview Video Coding with Region based Rate Allocation

Left - imageLeft - image

Right - imageRight - image

DisparityMap

DisparityMap MPEG - 4

Encoder

MPEG - 4Encoder

MPEG - 4Decoder

MPEG - 4Decoder

ReconstructedRight - image

ReconstructedRight - image

PSNR

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Residual Texture

Residual Texture

-

ReconstructedResidual Texture

ReconstructedResidual Texture

DisparityEstimation

DisparityEstimation

Local -MPEG - 4Decoder

Local -MPEG - 4DecoderReconstructed

left- image

Reconstructedleft- image

ReconstructedDisparity Map

ReconstructedDisparity Map

CompensatedRight - image

CompensatedRight - image

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Reconstructedleft- image

Reconstructedleft- image

ReconstructedDisparity Map

ReconstructedDisparity Map

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CompensatedRight - image

+

Encoder side

Decoder side

Coded left image

Coded Disparity map

Coded right imageLeft - imageLeft - image

Right - imageRight - image

DisparityMap

DisparityMap MPEG - 4

Encoder

MPEG - 4Encoder

MPEG - 4Decoder

MPEG - 4Decoder

ReconstructedRight - image

ReconstructedRight - image

PSNR

+

Residual Texture

Residual Texture

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ReconstructedResidual Texture

ReconstructedResidual Texture

DisparityEstimation

DisparityEstimation

Local -MPEG - 4Decoder

Local -MPEG - 4DecoderReconstructed

left- image

Reconstructedleft- image

ReconstructedDisparity Map

ReconstructedDisparity Map

CompensatedRight - image

CompensatedRight - image

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Reconstructedleft- image

Reconstructedleft- image

ReconstructedDisparity Map

ReconstructedDisparity Map

CompensatedRight - image

CompensatedRight - image

+

Encoder side

Decoder side

Coded left image

Coded Disparity map

Coded right image

Rate AllocationRate Allocation

Region Segmentation Region Segmentation

Left - imageLeft - image

Right - imageRight - image

DisparityMap

DisparityMap MPEG - 4

Encoder

MPEG - 4Encoder

MPEG - 4Decoder

MPEG - 4Decoder

ReconstructedRight - image

ReconstructedRight - image

PSNR

+

Residual Texture

Residual Texture

-

ReconstructedResidual Texture

ReconstructedResidual Texture

DisparityEstimation

DisparityEstimation

Local -MPEG - 4Decoder

Local -MPEG - 4DecoderReconstructed

left- image

Reconstructedleft- image

ReconstructedDisparity Map

ReconstructedDisparity Map

CompensatedRight - image

CompensatedRight - image

+

Reconstructedleft- image

Reconstructedleft- image

ReconstructedDisparity Map

ReconstructedDisparity Map

CompensatedRight - image

CompensatedRight - image

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Encoder side

Decoder side

Coded left image

Coded Disparity map

Coded right imageLeft - imageLeft - image

Right - imageRight - image

DisparityMap

DisparityMap MPEG - 4

Encoder

MPEG - 4Encoder

MPEG - 4Decoder

MPEG - 4Decoder

ReconstructedRight - image

ReconstructedRight - image

PSNR

+

Residual Texture

Residual Texture

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ReconstructedResidual Texture

ReconstructedResidual Texture

DisparityEstimation

DisparityEstimation

Local -MPEG - 4Decoder

Local -MPEG - 4DecoderReconstructed

left- image

Reconstructedleft- image

ReconstructedDisparity Map

ReconstructedDisparity Map

CompensatedRight - image

CompensatedRight - image

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Reconstructedleft- image

Reconstructedleft- image

ReconstructedDisparity Map

ReconstructedDisparity Map

CompensatedRight - image

CompensatedRight - image

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Encoder side

Decoder side

Coded left image

Coded Disparity map

Coded right image

Rate AllocationRate Allocation

Region Segmentation Region Segmentation

Multiview Video Coding with Region based Rate Allocation

video stream 1

video stream n

video stream 2

video stream 3

View switching position

View

Time

View Group 1

PP P PP

PP P PP

PP I PP

PP P PP

Supported by NSFC, 863,CNGI

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