公开(公告)号：US10230937B2

公开(公告)日：2019-03-12

申请号：US14908273

申请日：2014-08-13

Applicant: HFI Innovation Inc.

Inventor： Jian-Liang Lin ,  Na Zhang ,  Yi-Wen Chen ,  Jicheng An ,  Yu-Lin Chang

IPC: H04N13/00 ,  H04N19/136 ,  H04N19/44 ,  H04N19/124 ,  H04N19/176 ,  H04N13/161 ,  H04N19/597 ,  H04N19/52 ,  H04N19/593

Abstract: A method and apparatus for a three-dimensional or multi-view video encoding or decoding system utilizing unified disparity vector derivation is disclosed. When a three-dimensional coding tool using a derived disparity vector (DV) is selected, embodiments according to the present invention will first obtain the derived DV from one or more neighboring blocks. If the derived DV is available, the selected three-dimensional coding tool is applied to the current block using the derived DV. If the derived DV is not available, the selected three-dimensional coding tool is applied to the current block using a default DV, where the default DV is set to point to an inter-view reference picture in a reference picture list of the current block.

公开(公告)号：US10085039B2

公开(公告)日：2018-09-25

申请号：US14429498

申请日：2013-09-17

Applicant: HFI Innovation Inc.

Inventor： Yu-Lin Chang ,  Yu-Pao Tsai

IPC: H04N11/02 ,  H04N19/597 ,  H04N19/56 ,  H04N19/513

CPC classification number: H04N19/597 ,  H04N19/521 ,  H04N19/56

Abstract: A method and apparatus for three-dimensional video coding using the virtual depth information are disclosed. For a current texture block in the dependent view, the method incorporating the present invention first derives an estimated disparity vector to locate a corresponding texture block in a coded view. A collocated depth block in the coded view collocated with the corresponding texture block in the coded view is identified and used to derive the virtual depth information. One aspect of the present invention addresses derivation process for the estimated disparity vector. Another aspect of the present invention addresses the usage of the derived virtual depth information.

公开(公告)号：US10477183B2

公开(公告)日：2019-11-12

申请号：US14779655

申请日：2014-07-18

Applicant: HFI Innovation Inc.

Inventor： Yu-Lin Chang ,  Yi-Wen Chen ,  Jian-Liang Lin

IPC: H04N13/172 ,  H04N13/178 ,  H04N13/10 ,  H04N19/46 ,  H04N19/597 ,  H04N19/176 ,  H04N19/187 ,  H04N19/513 ,  H04N19/30

Abstract: A method of three-dimensional video encoding and decoding that adaptively incorporates camera parameters in the video bitstream according to a control flag is disclosed. The control flag is derived based on a combination of individual control flags associated with multiple depth-oriented coding tools. Another control flag can be incorporated in the video bitstream to indicate whether there is a need for the camera parameters for the current layer. In another embodiment, a first flag and a second flag are used to adaptively control the presence and location of camera parameters for each layer or each view in the video bitstream. The first flag indicates whether camera parameters for each layer or view are present in the video bitstream. The second flag indicates camera parameter location for each layer or view in the video bitstream.

公开(公告)号：US10110925B2

公开(公告)日：2018-10-23

申请号：US14485817

申请日：2014-09-15

Applicant: HFI Innovation Inc.

Inventor： Jian-Liang Lin ,  Yi-Wen Chen ,  Yu-Wen Huang ,  Yu-Lin Chang

IPC: H04N13/00 ,  H04N19/70 ,  H04N19/597 ,  H04N19/105

Abstract: A method of video coding utilizing ARP (advanced residual prediction) by explicitly signaling the temporal reference picture or deriving the temporal reference picture at the encoder and the decoder using identical process is disclosed. To encode or decode a current block in a current picture from a dependent view, a corresponding block in a reference view corresponding to the current block is determined based on a DV (disparity vector). For the encoder side, the temporal reference picture in the reference view of the corresponding block is explicitly signaled using syntax element(s) in the slice header or derived using an identical process as the decoder. For the decoder side, the temporal reference picture in the reference view of the corresponding block is determined according to the syntax element(s) in the slice header or derived using an identical process as the decoder. The temporal reference picture is then used for ARP.