Abstract: Methods and systems for the super resolution of high dynamic range (HDR) video are described. Given a sequence of video frames, a current frame and two or more neighboring frames are processed by a neural-network (NN) feature extraction module, followed by a NN upscaling module, and a NN reconstruction module. In parallel, the current frame is upscaled using traditional up-sampling to generate an intermediate up-sampled frame. The output of the reconstruction module is added to the intermediate up-sampled frame to generate an output frame. Additional traditional up-sampling may be performed on the output frame to match the desired up-scaling factor, beyond the up-scaling factor for which the neural network was trained.

Abstract: Methods and systems for the super resolution of high dynamic range (HDR) video are described. Given a sequence of video frames, a current frame and two or more neighboring frames are processed by a neural-network (NN) feature extraction module, followed by a NN upscaling module, and a NN reconstruction module. In parallel, the current frame is upscaled using traditional up-sampling to generate an intermediate up-sampled frame. The output of the reconstruction module is added to the intermediate up-sampled frame to generate an output frame. Additional traditional up-sampling may be performed on the output frame to match the desired up-scaling factor, beyond the up-scaling factor for which the neural network was trained.

Abstract: Methods and systems for multi-step display mapping and metadata reconstruction for high-dynamic range (HDR) images are described. In an encoder, given an HDR input image with input HDR metadata in a first dynamic range, an intermediate, base layer image in a second dynamic range is constructed based on the input image. In a decoder, using base-layer metadata, the input HDR metadata, and dynamic range characteristics of a target display, a processor generates reconstructed metadata which when used in combination with the base layer image allow a display mapping process to map the base layer image to the target display as if it was mapping directly the HDR image to the target display.