公开(公告)号：US20240422333A1

公开(公告)日：2024-12-19

申请号：US18815034

申请日：2024-08-26

Applicant: Texas Instruments Incorporated

Inventor： Woo-Shik Kim ,  Do-Kyoung Kwon

IPC: H04N19/30 ,  H04N19/00 ,  H04N19/182 ,  H04N19/463 ,  H04N19/82

Abstract: A method and apparatus for image coding using hierarchical sample adaptive band offset. The method includes decoding a signal of a portion of an image, determining a band offset type and offset of a portion of the image, utilizing the band offset type and offset to determine a sub-band, and reconstructing a pixel value according to the determined offset value.

公开(公告)号：US20240397071A1

公开(公告)日：2024-11-28

申请号：US18794375

申请日：2024-08-05

Applicant: Texas Instruments Incorporated

Inventor： Do-Kyoung Kwon ,  Madhukar Budagavi

IPC: H04N19/31 ,  H04N19/105 ,  H04N19/156 ,  H04N19/172 ,  H04N19/187 ,  H04N19/33 ,  H04N19/423 ,  H04N19/44 ,  H04N19/46 ,  H04N19/573 ,  H04N19/577

Abstract: A method for encoding a video sequence in a scalable video encoder to generate a scalable bitstream is provided that includes encoding the video sequence in a first layer encoder of the scalable video encoder to generate a first sub-bitstream, encoding the video sequence in a second layer encoder of the scalable video encoder to generate a second sub-bitstream, wherein portions of the video sequence being encoded in the second layer encoder are predicted using reference portions of the video sequence encoded in the first layer encoder, combining the first sub-bitstream and the second sub-bitstream to generate the scalable bitstream, and signaling in the scalable bitstream an indication of a maximum decoded picture buffer (DPB) size needed for decoding the second sub-bitstream and the first sub-bitstream when the second sub-bitstream is a target sub-bitstream for decoding.

公开(公告)号：US11792414B2

公开(公告)日：2023-10-17

申请号：US17007325

申请日：2020-08-31

Applicant: Texas Instruments Incorporated

Inventor： Woo-Shik Kim ,  Do-Kyoung Kwon

IPC: H04N19/30 ,  H04N19/463 ,  H04N19/82 ,  H04N19/00 ,  H04N19/182

CPC classification number: H04N19/30 ,  H04N19/00 ,  H04N19/182 ,  H04N19/463 ,  H04N19/82

Abstract: A method and apparatus for image coding using hierarchical sample adaptive band offset. The method includes decoding a signal of a portion of an image, determining a band offset type and offset of a portion of the image, utilizing the band offset type and offset to determine a sub-band, and reconstructing a pixel value according to the determined offset value.

公开(公告)号：US11762071B2

公开(公告)日：2023-09-19

申请号：US16689647

申请日：2019-11-20

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Muhammad Zubair Ikram ,  Do-Kyoung Kwon

IPC: G01S7/497 ,  G01S7/40 ,  G01S13/931 ,  G06T7/90 ,  G06T7/70 ,  G06T7/80 ,  G01S17/931

CPC classification number: G01S7/497 ,  G01S7/40 ,  G01S13/931 ,  G01S17/931 ,  G06T7/70 ,  G06T7/80 ,  G06T7/90

Abstract: A method for multi-sensor calibration includes imaging a calibration target with a first sensor using a first modality to obtain a first set of data and a second sensor using a second modality that is different from the first modality to obtain a second set of data. A border of the calibration target is identified based on the first set of data. A first centroid location of the calibration target is identified based on the border of the calibration target. A border of a pattern disposed on the calibration target is identified based on the second set of data. A second centroid location of the calibration target is identified based on the border of the pattern. Calibration data for the first sensor and the second sensor is generated based on the first centroid location and the second centroid location.

公开(公告)号：US11694341B2

公开(公告)日：2023-07-04

申请号：US16725296

申请日：2019-12-23

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Jing Li ,  Do-Kyoung Kwon ,  Tarek Aziz Lahlou

IPC: G06T7/223 ,  G06T7/285 ,  H04N13/106 ,  G06N3/02 ,  H04N13/00

CPC classification number: G06T7/223 ,  G06N3/02 ,  G06T7/285 ,  H04N13/106 ,  G06T2207/10021 ,  G06T2207/20084 ,  H04N2013/0081 ,  H04N2013/0085

Abstract: A CNN operates on the disparity or motion outputs of a block matching hardware module, such as a DMPAC module, to produce refined disparity or motion streams which improve operations in images having ambiguous regions. As the block matching hardware module provides most of the processing, the CNN can be small and thus able to operate in real time, in contrast to CNNs which are performing all of the processing. In one example, the CNN operation is performed only if the block hardware module output confidence level is below a predetermined amount. The CNN can have a number of different configurations and still be sufficiently small to operate in real time on conventional platforms.

公开(公告)号：US11611767B2

公开(公告)日：2023-03-21

申请号：US17380498

申请日：2021-07-20

Applicant: Texas Instruments Incorporated

Inventor： Do-Kyoung Kwon ,  Madhukar Budagavi

IPC: H04N19/31 ,  H04N19/46 ,  H04N19/423 ,  H04N19/573 ,  H04N19/577 ,  H04N19/105 ,  H04N19/172 ,  H04N19/156 ,  H04N19/187 ,  H04N19/44 ,  H04N19/33

Abstract: A method for encoding a video sequence in a scalable video encoder to generate a scalable bitstream is provided that includes encoding the video sequence in a first layer encoder of the scalable video encoder to generate a first sub-bitstream, encoding the video sequence in a second layer encoder of the scalable video encoder to generate a second sub-bitstream, wherein portions of the video sequence being encoded in the second layer encoder are predicted using reference portions of the video sequence encoded in the first layer encoder, combining the first sub-bitstream and the second sub-bitstream to generate the scalable bitstream, and signaling in the scalable bitstream an indication of a maximum decoded picture buffer (DPB) size needed for decoding the second sub-bitstream and the first sub-bitstream when the second sub-bitstream is a target sub-bitstream for decoding.

公开(公告)号：US11438607B2

公开(公告)日：2022-09-06

申请号：US17107996

申请日：2020-12-01

Applicant: Texas Instruments Incorporated

Inventor： Do-Kyoung Kwon ,  Madhukar Budagavi

IPC: H04N19/20 ,  H04N19/157 ,  H04N19/176 ,  H04N19/86 ,  H04N19/14 ,  H04N19/126

Abstract: A method for encoding a video sequence in a video encoder is provided that includes adapting a quantization parameter of a block of pixels in a picture of the video sequence based on a transform block size of the block of pixels to determine a final quantization parameter, and quantizing transform coefficients of the block of pixels using the final quantization parameter.

公开(公告)号：US11212541B2

公开(公告)日：2021-12-28

申请号：US16868445

申请日：2020-05-06

Applicant: Texas Instruments Incorporated

Inventor： Do-Kyoung Kwon ,  Madhukar Budagavi

IPC: H04N19/31 ,  H04N19/46 ,  H04N19/423 ,  H04N19/573 ,  H04N19/577 ,  H04N19/105 ,  H04N19/172 ,  H04N19/156 ,  H04N19/187 ,  H04N19/44 ,  H04N19/33

Abstract: A method for encoding a video sequence in a scalable video encoder to generate a scalable bitstream is provided that includes encoding the video sequence in a first layer encoder of the scalable video encoder to generate a first sub-bitstream, encoding the video sequence in a second layer encoder of the scalable video encoder to generate a second sub-bitstream, wherein portions of the video sequence being encoded in the second layer encoder are predicted using reference portions of the video sequence encoded in the first layer encoder, combining the first sub-bitstream and the second sub-bitstream in the scalable bitstream, and signaling an indication of a highest temporal level of the first sub-bitstream comprising at least one of the reference portions in the scalable bitstream.

公开(公告)号：US11102507B2

公开(公告)日：2021-08-24

申请号：US16843315

申请日：2020-04-08

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Do-Kyoung Kwon ,  Madhukar Budagavi

IPC: H04N19/567

Abstract: A method for encoding video data is provided that includes determining whether or not a parent coding unit of a coding unit of the video data was predicted in intra-prediction block copy (IntraBC) mode and, when it is determined that the parent coding unit was not predicted in IntraBC mode: computing activity of the coding unit, determining an IntraBC coding cost of the coding unit by computing the IntraBC coding cost of the coding unit using a two dimensional (2D) search when the activity of the coding unit is not than an activity threshold, and computing the IntraBC coding cost of the coding unit using a one dimensional (1D) search when the activity of the coding unit is less than the activity threshold, using the IntraBC coding cost to select an encoding mode from one of a plurality of encoding modes, encoding the coding unit using the selected encoding mode.

公开(公告)号：US20210105497A1

公开(公告)日：2021-04-08

申请号：US17123587

申请日：2020-12-16

Applicant: Texas Instruments Incorporated

Inventor： Do-Kyoung Kwon ,  Madhukar Budagavi

IPC: H04N19/503 ,  H04N19/107 ,  H04N19/109 ,  H04N19/43 ,  H04N19/593

Abstract: A method for decoding encoded blocks of pixels from an encoded video bit stream is provided that includes decoding a block vector corresponding to an encoded block of pixels from the encoded bit stream, verifying that the block vector indicates a block of reconstructed pixels in a search area including reconstructed pixels of a largest coding unit (LCU) including the encoded block of pixels and N left neighboring reconstructed LCUs of the LCU, and decoding the encoded block of pixels, wherein the block of reconstructed pixels is used as a predictor for the encoded block of pixels.