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Frame-compatible full-resolution stereoscopic 3D video delivery with symmetric picture resolution and quality

專利號(hào)
US10097820B2
公開日期
2018-10-09
申請(qǐng)人
Dolby Laboratories Licensing Corporation（US CA San Francisco）
發(fā)明人
Tao Chen; Hariharan Ganapathy, I; Samir N. Hulyalkar; Gopi Lakshminarayanan; Peng Yin; Taoran Lu; Walter J. Husak
IPC分類
H04N13/00; H04N19/119; H04N13/106; H04N19/597
技術(shù)領(lǐng)域
le,image,frame,rpu,in,3d,video,spatial,bl,decoder
地域： CA CA San Francisco

摘要

A high resolution 3D image may be encoded into a first multiplexed image frame and a second multiplexed image frame in a base layer (BL) video signal and an enhancement layer (EL) video signal. The first multiplexed image frame may comprise horizontal high resolution image data for both eyes, while the second multiplexed image frame may comprise vertical high resolution image data for both eyes. Encoded symmetric-resolution image data for the 3D image may be distributed to a wide variety of devices for 3D image processing and rendering. A recipient device may reconstruct reduced resolution 3D image from one of the first multiplexed image frame or the second multiplexed image frame. A recipient device may also reconstruct high resolution 3D image by combining high resolution image data from both of the first multiplexed image frame and the second multiplexed image frame.

說明書

In an example embodiment, an up-sampling unit (170) de-multiplexes and/or separates the multiplexed 3D image frame (158-H) into two image data portions. While the multiplexed 3D image frame (158-H) comprises multiplexed filtered image data for both left and right eyes, the image data portions comprise a filtered LE image data portion and a filtered RE image data portion, each of which is at a reduced resolution below the full resolution. In an example embodiment, the up-sampling unit (170) up-samples (e.g., expanding along the horizontal direction) the filtered LE image data portion to form an up-sampled LE filtered output image frame (172-L). Similarly, the up-sampling unit (170) up-samples (e.g., expanding along the horizontal direction) the filtered RE image data portion to form an up-sampled RE filtered output image frame (172-R). Even though each of the up-sampled LE and RE filtered image frames (172-L and -R) may comprise the same number of pixels as a full resolution image frame, the rendered 3D image with the up-sampled LE and RE filtered image frames (172-L and -R) has a fuzzier look than a 3D image made up of full resolution LE and RE image frames (162-L and -R of FIG. 1B) not obtained by an up-sampling operation. In addition, the up-sampled LE and RE filtered image frames (172-L and -R) do not have high spatial frequency image details removed in the encoding process of the BL video signals (which may be derived from, for example, 112-1 of FIG. 1A).

權(quán)利要求

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