Jian H Zhou

US Patent:

8358700, Jan 22, 2013

Filed:

Jun 3, 2008

Appl. No.:

12/132407

Inventors:

Jian Zhou - Fremont CA, US
Jizhang Shan - Cupertino CA, US

Assignee:

OmniVision Technologies, Inc. - Santa Clara CA

International Classification:

H04N 11/04

US Classification:

37524024, 37524027, 37524028

Abstract:

A computer readable storage medium has executable instructions to select a plurality of macroblocks in a video sequence to be coded as anchor macroblocks, the anchor macroblocks distributed across the video sequence and facilitating random access decoding of a portion of the video sequence. The video sequence is coded into a bit stream. Auxiliary information associated with the anchor macroblocks is generated. The auxiliary information associated with the anchor macroblocks is inserted in a supplementary section of the bit stream.

US Patent:

20090274211, Nov 5, 2009

Filed:

Apr 30, 2008

Appl. No.:

12/113197

Inventors:

Jian ZHOU - Fremont CA, US

Assignee:

OMNIVISION TECHNOLOGIES, INC. - Sunnyvale CA

International Classification:

H04N 7/32

US Classification:

37524012, 375E07243

Abstract:

A computer readable storage medium has executable instructions to select a plurality of blocks in a video sequence to be coded as intra-coded blocks. Aggregate intra prediction costs are computed for each intra-coded block relative to a corresponding previous intra-coded block. An intra prediction mode is selected for each intra-coded block based on the aggregate intra prediction costs.

US Patent:

20090274213, Nov 5, 2009

Filed:

Apr 30, 2008

Appl. No.:

12/113202

Inventors:

Jian ZHOU - Fremont CA, US

Assignee:

OMNIVISION TECHNOLOGIES, INC. - Sunnyvale CA

International Classification:

H04N 7/26

US Classification:

37524015, 375E07126

Abstract:

A computer readable storage medium has executable instructions to select a plurality of blocks in a video sequence to be coded as intra-coded blocks. Intra prediction modes are selected for all intra-coded blocks in a macroblock based on original pixels of neighboring blocks. The mode selection of all intra-coded blocks can be conducted in parallel. The intra-coded blocks in the macroblock are predicted with the selected intra prediction modes based on reconstructed pixels of neighboring blocks.

US Patent:

20130332261, Dec 12, 2013

Filed:

Aug 12, 2013

Appl. No.:

13/964775

Inventors:

Surojit Chatterjee - Fremont CA, US
Chen Chen - Sunnyvale CA, US
Jian Zhou - Milpitas CA, US

Assignee:

Google Inc. - Mountain View CA

International Classification:

G06Q 30/02

US Classification:

705 1442, 37911206, 705 1441

Abstract:

This specification relates to tracking phone calls related to online content items. In general, one aspect of the subject matter described in this specification can be embodied in methods that include the actions of determining a probability that a call to a phone number resulted from a first interaction of a set of interactions. In general, another aspect of the subject matter described in this specification can be embodied in methods that include the actions of determining a rank score for an online content item, including for each call of a plurality of phone calls to the phone number, attributing the call to an online content interaction of a set of online content interactions; determining, using the rank score, whether to provide the online content item to a client device; and providing the online content item to the client device upon determining to do so using the rank score.

US Patent:

20220414824, Dec 29, 2022

Filed:

Jun 23, 2021

Appl. No.:

17/356216

Inventors:

- Cupertino CA, US
Jian Zhou - Pleasanton CA, US

International Classification:

G06T 3/40
G06T 3/00
G06T 5/50

Abstract:

An electronic device may include an electronic display to display an image based on processed image data. The electronic device may also include image processing circuitry to determine a hierarchical grid having multiple grid points divided into grid partitions. A first set of grid points associated with a first set of grid partitions may include a first set of mappings to corresponding coordinates of input image data in a source frame. The image processing circuitry may also interpolate between the first set of grid points to determine a second set of grid points of having a second set of mappings to corresponding coordinates of the input image data based on the first set of mappings. The image processing circuitry may also generate the processed image data by applying the first set of mappings and the second set of mappings to the input image data.

US Patent:

20220414840, Dec 29, 2022

Filed:

Jun 23, 2021

Appl. No.:

17/356219

Inventors:

- Cupertino CA, US
Jian Zhou - Pleasanton CA, US

International Classification:

G06T 5/00
G06T 3/00
G06F 3/01

Abstract:

An electronic device may include an electronic display to display an image based on compensated image data in a panel space. The electronic device may also include image processing circuitry to generate the compensated image data. Further, generating the compensated image data may include determining a first inverse mapping of a pixel grid from the panel space to a rendering space and determining a forward mapping of the pixel grid from the rendering space to the panel space based on the first inverse mapping. The forward mapping may include corrections for multiple different warp operations stacked in a single warp operation. Additionally, the image processing circuitry may apply the forward mapping to input image data to generate the compensated image data.

US Patent:

20220414841, Dec 29, 2022

Filed:

Jun 23, 2021

Appl. No.:

17/356223

Inventors:

- Cupertino CA, US
Jian Zhou - Pleasanton CA, US

International Classification:

G06T 5/00
G06T 3/00
G06N 20/00

Abstract:

An electronic device may include an electronic display to display an image based on processed image data. The electronic device may also include image processing circuitry to generate the processed image data. The image processing circuitry may receive input image data corresponding to an image in a first perspective and warp the input image data from the first perspective to a second perspective, generating warped image data. Additionally, the image processing circuitry may determine one or more occluded regions in the second perspective and determine fill-data corresponding to the occluded regions. The processed image data may be generated by combining the warped image data and the fill-data.

US Patent:

20150341659, Nov 26, 2015

Filed:

Apr 24, 2015

Appl. No.:

14/696162

Inventors:

- Cupertino CA, US
Xiaojin Shi - Fremont CA, US
Jian Zhou - Fremont CA, US

International Classification:

H04N 19/577

Abstract:

A pipelined video coding system may include a motion estimation stage and an encoding stage. The motion estimation stage may operate on an input frame of video data in a first stage of operation and may generate estimates of motion and other statistical analyses. The encoding stage may operate on the input frame of video data in a second stage of operation later than the first stage. The encoding stage may perform predictive coding using coding parameters that are selected, at least in part, from the estimated motion and statistical analysis generated by the motion estimator. Because the motion estimation is performed at a processing stage that precedes the encoding, a greater amount of processing time may be devoted to such processes than in systems that performed both operations in a single processing stage.