3次元映像情報メディア技術  自由視点画像合成に基づく光線空間符号化

書誌事項

タイトル別名
  • Ray-Space Coding Based on Free-Viewpoint Image Synthesis
  • 自由視点画像合成に基づく光線空間符号化
  • ジユウ シテン ガゾウ ゴウセイ ニ モトヅク コウセン クウカン フゴウカ

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抄録

We developed a ray-space coding scheme in which an image-based rendering technique is introduced at the beginning of coding. Our coder first synthesizes an image at an arbitrarily given viewpoint, which is called a representative viewpoint, and then predicts input images by using the synthesized image as a reference. It can produce a scalable bitstream, which enables high-quality rendering around the representative viewpoint even at extremely low bit rates. Our experimental results show that this coding scheme has good coding efficiency for both multi-camera images and integral photography.

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