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Xiaojin Shi patents

Recent patents with Xiaojin Shi listed as an inventor - additional entries may be under other spellings.


Xiaojin Shi - Related organizations: Apple Inc. patents

I-frame flashing fix in video encoding and decoding

12/03/15 - 20150350688 - Methods and systems provide video compression to reduce a “flashing” effect, typically caused by skipping coding or allocating a low number of bits in coding relatively low complexity portions of frames. In an embodiment, if at least a portion of a sequence of frames is of relatively low complexity, a
Inventors: Jian Lou, Xiaojin Shi

Use of pipelined hierarchical motion estimator in video coding

11/26/15 - 20150341659 - 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
Inventors: Jian Lou, Xiaojin Shi, Jian Zhou

Complexity-aware encoding

01/01/15 - 20150003515 - Techniques for encoding data based at least in part upon an awareness of the decoding complexity of the encoded data and the ability of a target decoder to decode the encoded data are disclosed. In some embodiments, a set of data is encoded based at least in part upon a
Inventors: Jim Normile, Thomas Pun, Xiaojin Shi, Xin Tong, Hsi-jung Wu

Hypothetical reference decoder

06/05/14 - 20140153653 - Disclosed is a system and method of controlling a video decoder, including a reviewing channel data representing coded video data generated by an encoder to identify parameters of a hypothetical reference decoder (HRD) used by the encoder during coding operations. A parameter representing an exit data rate requirement of a
Inventors: Hsi-jung Wu, Barin Geoffry Haskell, Xiaojin Shi, James Oliver Normile

Sync frame recovery in real time video transmission system

12/12/13 - 20130329809 - An error recovery method may be engaged by an encoder to recover from misalignment between reference picture caches at the encoder and decoder. When a communication error is detected between a coder and a decoder, a number of non-acknowledged reference frames present in the decoder's reference picture cache may be
Inventors: Athanasios Leontaris, Haitao Guo, Xiaojin Shi

Frame dropping algorithm for fast adaptation of buffered compressed video to network condition changes

09/29/11 - 20110235709 - A video coding and transmission system may employ techniques for adapting buffered video to network condition changes. Video data may be coded as reference data and non-reference data. According to the embodiments, non-reference frame may be detected in buffered video while awaiting transmission to a network. When network degradation is
Inventors: Xiaojin Shi, Xiaosong Zhou, Joe Abuan, Hyeonkuk Jeong, Jochen Christian Schmidt, Yan Yang, James Oliver Normile, Hsi-jung Wu

Accelerometer / gyro-facilitated video stabilization

09/29/11 - 20110234825 - Embodiments of the present invention provide a control system for video processes that selectively control the operation of motion stabilization processes. According to the present invention, motion sensor data indicative of motion of a mobile device may be received and processed. A determination may be made by comparing processed motion
Inventors: Yuxin Liu, Xiaojin Shi, James Oliver Normile, Hsi-jung Wu

Complexity-aware encoding

09/29/11 - 20110234430 - Techniques for encoding data based at least in part upon an awareness of the decoding complexity of the encoded data and the ability of a target decoder to decode the encoded data are disclosed. In some embodiments, a set of data is encoded based at least in part upon a
Inventors: Jim Normile, Thomas Pun, Xiaojin Shi, Xin Tong, Hsi-jung Wu

Joint bandwidth detection algorithm for real-time communication

06/23/11 - 20110149087 - A video coding system and method for increasing a transmitted output bit rate of a video encoding system by altering the content of the bit stream. A video encoder may receive a coding mode signal from a computer application for coding source video data, the coding mode signal indicating a
Inventors: Hyeonkuk Jeong, Xiaosong Zhou, Joe Abuan, Xiaojin Shi, Hsi-jung Wu, James Oliver Normile

Facial pose improvement with perspective distortion correction

04/21/11 - 20110090303 - Methods, systems, and apparatus are presented for reducing distortion in an image, such as a video image. A video image can be captured by an image capture device, e.g. during a video conferencing session. Distortion correction processing, such as the application of one or more warping techniques, can be applied
Inventors: Hsi-jung Wu, Chris Yoochang Chung, Xiaojin Shi, James Normile

Video coder providing improved visual quality during use of heterogeneous coding modes

02/17/11 - 20110038416 - A video coding system reduces perceptible artifacts introduced to coded video due to selection of disparate coding modes among adjacent partitions of video. When coding modes are assigned to partitions of video that likely would introduce visually perceptible coding artifacts during decode, the partitions may be subject to a coding
Inventors: Xiaosong Zhou, Ionut Hristodorescu, Hsi-jung Wu, Xiaojin Shi

Image acquisition and encoding system

12/09/10 - 20100309987 - A method and system are provided to encode a video sequence into a compressed bitstream. An encoder receives a video sequence from an image-capture device, together with metadata associated with the video sequence, and codes the video sequence into a first compressed bitstream using the metadata to select or revise
Inventors: Davide Concion, Xiaosong Zhou, Guy Cote, Cecile Foret, Haitao (harry) Guo, Ionut Hristodorescu, James Oliver Normile, Xiaojin Shi, Hsi-jung Wu

Video processing for masking coding artifacts using dynamic noise maps

12/09/10 - 20100309985 - A video decoder system includes a video decoding engine, noise database, artifact estimator and post-processing unit. The video coder may generate recovered video from a data stream of coded video data, which may have visually-perceptible artifacts introduced as a byproduct of compression. The noise database may store a plurality of
Inventors: Yuxin Liu, Hsi-jung Wu, Xiaojin Shi, Chris Yoochang Chung

Image acquisition and transcoding system

12/09/10 - 20100309975 - A method and system are provided to encode a video sequence into a compressed bitstream. An encoder receives a video sequence from an image-capture device, together with metadata associated with the video sequence, and codes the video sequence into a first compressed bitstream using the metadata to select or revise
Inventors: Xiaosong Zhou, Davide Concion, Guy Cote, Cecile Foret, Haitao (harry) Guo, Ionut Hristodorescu, James Oliver Normile, Xiaojin Shi, Hsi-jung Wu

Blind noise analysis for video compression

09/30/10 - 20100246688 - Example embodiments of the present invention provide a method or device for coding source video. The method or device may provide for a segment of video frames from the source video, computing a noise map for the segment of the source video where the noise map is computed from differences
Inventors: Gianluca Filippini, Xiaosong Zhou, Hsi-jung Wu, James Oliver Normile, Xiaojin Shi, Ionut Hristodorescu

Method and system for video coder and decoder joint optimization

12/10/09 - 20090304086 - Embodiments of the present invention provide apparatuses and methods of coding video. The apparatuses and methods may further provide coding a source video sequence according to a block-based coding process, estimating processing capabilities of a target decoder, determining if the estimated processing capabilities are sufficient to perform deblocking filtering. If
Inventors: Xiaojin Shi, Hsi-jung Wu

Refresh method and apparatus

12/10/09 - 20090304077 - Apparatuses and methods for improving coding processes and coding parameters for coding video data are provided for. A coder may select coding parameters for video data according to a default coding policy. The default coding policy may include selection of prediction modes (e.g., intra-coding or inter-coding) for each pixel group
Inventors: Hsi-jung Wu, Xiaosong Zhou, Xiaojin Shi, Yuxin Liu

Adaptive application of entropy coding methods

12/10/09 - 20090304071 - Disclosed is an exemplary video coder and method that provide a video decoder control method for analyzing data to schedule coding of the data. Input data may be encoded to a plurality of different encoding. It may be determined if a minimum number of the plurality of different encodings comply
Inventors: Xiaojin Shi, Hsi-jung Wu


### Xiaojin Shi patent invention listings

The bibliographic references displayed about Xiaojin Shi's patents are for a recent sample of Xiaojin Shi's publicly published patent applications. The inventor/author may have additional bibliographic citations listed at the USPTO.gov. FreshPatents.com is not associated or affiliated in any way with the author/inventor or the United States Patent/Trademark Office but is providing this non-comprehensive sample listing for educational and research purposes using public bibliographic data published and disseminated from the United States Patent/Trademark Office public datafeed. This information is also available for free on the USPTO.gov website. If Xiaojin Shi filed recent patent applications under another name, spelling or location then those applications could be listed on an alternate page. If no bibliographic references are listed here, it is possible there are no recent filings or there is a technical issue with the listing--in that case, we recommend doing a search on the USPTO.gov website.

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