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. Author manuscript; available in PMC: 2024 Feb 5.
Published in final edited form as: IEEE Trans Vis Comput Graph. 2023 Dec 25;30(1):1380–1390. doi: 10.1109/TVCG.2023.3327193

Fig. 1: Overview.

Fig. 1:

Volume bricks of different channels (red, green, blue) and resolution levels (dark to bright) are streamed into a brick cache (a), referenced by a multi-channel page table hierarchy (b). Our residency octree (c) keeps track of the correspondence between spatial regions and the cache residency of bricks of different resolutions, enabling mixed-resolution, multi-channel rendering (d) with efficient, adaptive substitution of missing higher resolutions by available lower resolutions. Ray traversal is done for spatial regions corresponding to octree nodes instead of bricks, and is independent of the number of channels. (e) 16-channel rendering of melanoma.