Dolby Laboratories Licensing Corporation

Gaven Wang

Ajit Ninan

Arkady Ten

Gregory John Ward

Robin Atkins

Wenhui Jia

Ankur Shah

Huiming Tong

Qiaoli Yang

Arkadi Ten

A content-creation tool includes a processor and a memory. The processor is configured to receive a first video clip and a second video clip, a respective first and second metadata-item thereof being set to a respective first and second metadata-value. The memory stores video-editing software that includes a timeline interface and instructions that, when executed by the processor, control the processor to: add the first video clip to the timeline interface as a first timeline-track that retains the first metadata-value; add the second video clip to the timeline interface as a second timeline-track that retains the second metadata-value; and generate a frame sequence that includes a plurality of video frames. Each video frame is a frame of, or a frame derived from, one of (i) the first timeline-track, (ii) the second timeline-track, and (iii) a composited time-line-track composited from at least one of the first and second timeline-tracks.

Video content creation tool and method

Image encoding and decoding are described. An input HDR image that includes a base image and a ratio image may be stored using two or more color description profiles. One profile defines the encoding color space of the base image and the second profile defines the encoding color space of the HDR metadata which may be different than the color space of the base image.

HDR images with multiple color gamuts

Techniques are provided to encode and decode image data comprising a tone mapped (TM) image with HDR reconstruction data in the form of luminance ratios and color residual values. In an example embodiment, luminance ratio values and residual values in color channels of a color space are generated on an individual pixel basis based on a high dynamic range (HDR) image and a derivative tone-mapped (TM) image that comprises one or more color alterations that would not be recoverable from the TM image with a luminance ratio image. The TM image with HDR reconstruction data derived from the luminance ratio values and the color-channel residual values may be outputted in an image file to a downstream device, for example, for decoding, rendering, and/or storing. The image file may be decoded to generate a restored HDR image free of the color alterations.

Encoding, decoding, and representing high dynamic range images

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Redwood City, CA, United States of America

Gaven Wang