Patent application number | Description | Published |
20150195570 | Method of Texture Dependent Depth Partition - A method of improved texture-partition-dependent depth partition is disclosed. First, the available texture partitions for a collocated texture block are classified into two or more groups, and a set of candidate depth partitions is determined for each group. In one embodiment, at least one set of the candidate depth partitions contain more than one candidate depth partition and less than all candidate depth partitions. In another embodiment, the collocated texture blocks are classified into two groups, and one of the two groups includes the N×N texture partition and at least another texture partition. In yet another embodiment, the collocated texture blocks are classified into three groups or more. A current depth partition for the current depth block is then selected from a corresponding set of candidate depth partitions according to a corresponding group that a current texture partition associated with the collocated texture block belongs. | 07-09-2015 |
20150237324 | Method of Depth Based Block Partitioning - A method of simplified depth-based block partitioning (DBBP) for three-dimensional and multi-view video coding is disclosed. In one embodiment, the derivation of a representative value of a corresponding depth block or a reference texture block in a reference view for generating a segmentation mask and selecting a block partition are unified. In another embodiment, the first representative value, the second representative value, or both are calculated from partial samples of the corresponding depth block or the reference texture block. In yet another embodiment, a first representative value for first samples in a first partitioned block of the corresponding depth block or the reference texture block, and a second representative value for second samples in a second partitioned block of the corresponding depth block or the reference texture block for each of block partition candidates are determined. | 08-20-2015 |
20150264356 | Method of Simplified Depth Based Block Partitioning - A method of simplified depth-based block partitioning (DBBP) for three-dimensional and multi-view video coding is disclosed. In one embodiment, a selected set of partition candidates is determined from one or more sets of the partition candidates including at least one partial set of the partition candidate consisting of less than full-set partition candidates. The one or more sets of the partition candidates may correspond to only one simplified set consisting of 2N×N and N×2N block partitions and there is no need to signal the selected set of partition candidates. In another embodiment of the present invention, the depth-based block partitioning (DBBP) coding is applied to a current block only if the current block size belongs to a set of allowed block sizes. The set of allowed block sizes can be pre-defined and no explicit signaled is needed. | 09-17-2015 |
20150264396 | Method of Video Coding Using Symmetric Intra Block Copy - A method and apparatus for video coding including an IntraBC (Intra-block copy) mode for a picture according to the present invention is disclosed. Embodiments of the present invention take advantage of pattern symmetry in screen contents as well as natural video to improve the performance of IntraBC coding. Accordingly, at least a reference block is reformed to generate a reformed predictor and IntraBC coding is applied to a block using the reformed predictor. Reforming the reference block may correspond to applying a reforming operation selected from a reforming group to the reference block, where the reforming group consists of horizontal flipping, vertical flipping, horizontal and vertical flipping, clockwise rotation, counter-clockwise rotation and transposition. | 09-17-2015 |
20150264399 | METHOD OF SIGNALING FOR DEPTH-BASED BLOCK PARTITIONING - A method of signaling depth-based block partitioning (DBBP) for multi-view or three-dimensional (3D) video coding is disclosed. In one embodiment, the DBBP flag is signaled for all candidate prediction modes of the current texture coding unit including a non-2N×N partition mode. The group of candidate prediction modes may consist of 2N×N partition mode and N×2N partition mode. If the DBBP flag indicates the DBBP being used for the current texture coding unit, DBBP encoding is applied to the current texture coding unit or DBBP decoding is applied to one or more PUs associated with the current texture coding unit to recover the current texture coding unit. If the DBBP flag indicates the DBBP being not used for the current texture coding unit, a prediction partition mode is signaled at an encoder side or parsed at a decoder side from a CU (coding unit) level of the bitstream. | 09-17-2015 |
20150358643 | Method of Depth Coding Compatible with Arbitrary Bit-Depth - A method and apparatus for coding depth data using inter-view motion prediction (IVMP) in a three-dimensional or multi-dimensional video coding system are disclosed. In one embodiment, the bit depth of the depth data associated with the current depth map is determined first and a converted disparity vector is derived from a selected depth value depending on the bit depth. A corresponding depth block in an inter-view reference depth map in a reference view is located using the converted disparity vector. The current depth block is then encoded or decoded using the corresponding depth block as an inter-view predictor. | 12-10-2015 |
20160065964 | Method of Simplified CABAC Coding in 3D Video Coding - A method for reducing the storage requirement or complexity of context-based coding in three-dimensional or multi-view video encoding and decoding is disclosed. The system selects the context based on selected information associated with one or more neighboring blocks of the current block conditionally depending on whether the one or more neighboring blocks are available. The syntax element is then encoded or decoded using context-based coding according to the context selection. The syntax element to be coded may correspond to an IC (illumination compensation) flag or an ARP (advanced residual prediction) flag. In another example, one or more syntax elements for coding a current depth block using DMM (Depth Map Model) are encoded or decoded using context-based coding, where the context-based coding selects a by-pass mode for at least one selected syntax element. | 03-03-2016 |
20160100190 | Method of View Synthesis Prediction in 3D Video Coding - A method and apparatus for three-dimensional or multi-view video encoding and decoding using VSP (view synthesis prediction) with uniform sub-block partition are disclosed. For a current texture block comprising multiple partition blocks, the system derives a single partition decision and partitions each partition block of the current texture block into multiples sub-blocks according to the single partition decision. The VSP processing is then applied to each sub-block to derive the inter-view prediction using VSP. The single partition decision is derived using depth samples of the depth block in a reference view. | 04-07-2016 |