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Deep Video Inverse Tone Mapping Based on Temporal Clues

Yuyao Ye · Ning Zhang · Yang Zhao · Hongbin Cao · Ronggang Wang

Arch 4A-E Poster #179
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Fri 21 Jun 5 p.m. PDT — 6:30 p.m. PDT


Inverse tone mapping (ITM) aims to reconstruct high dynamic range (HDR) radiance from low dynamic range (LDR) content. Although many deep image ITM methods can generate impressive results, the field of video ITM is still to be explored. Processing video sequences by image ITM methods may cause temporal inconsistency. Besides, they aren't able to exploit the potentially useful information in the temporal domain. In this paper, we analyze the process of video filming, and then propose a Global Sample and Local Propagate strategy to better find and utilize temporal clues. To better realize the proposed strategy, we design modules named Incremental Clue Aggregation Module and Feature and Clue Propagation Module. They can align and fuse frames effectively under the condition of brightness changes and propagate features and temporal clues to all frames efficiently. Our temporal clues based video ITM method can recover realistic and temporal consistent results with high fidelity in over-exposed regions. Qualitative and quantitative experiments on public datasets show that the proposed method has significant advantages over existing methods.

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