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Yeping Su patents

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


Yeping Su - Related organizations: Apple Inc. patents

Trick play in digital video streaming

02/09/17 - 20170041681 - System and methods for improved playback of a video stream are presented. Video snippets are identified that include a number of consecutive frames for playback. Snippets may be evenly temporally spaced in the video stream or may be content adaptive. Then the first frame of a snippet may be selected
Inventors: David L. Biderman, Xiaosong Zhou, Douglas Scott Price, Yeping Su, Chris Y. Chung, Hsi-jung Wu, Zhenheng Li, John Su, James D. Batson

Techniques for resource conservation during performance of intra block copy prediction searches

12/08/16 - 20160360234 - Methods are described for encoding and decoding blocks of image data using intra block copying (IBC). A source block for intra block copying is selected from a source region of a current image that is closer to the current block than a threshold, wherein the source region does not include
Inventors: Alexandros Michael Tourapis, David William Singer, Haitao Guo, Hsi-jung Wu, Sorin C. Cismas, Xiaohua Yang, Yeping Su, Dazhong Zhang

Efficient still image coding with video compression techniques

12/08/16 - 20160360231 - Coding techniques for image data may cause a still image to be converted to a “phantom” video sequence, which is coded by motion compensated prediction techniques. Thus, coded video data obtained from the coding operation may include temporal prediction references between frames of the video sequence. Metadata may be generated
Inventors: Hang Yuan, Chris Y. Chung, Jae Hoon Kim, Yeping Su, Jiefu Zhai, Xiaosong Zhou, Hsi-jung Wu

Preventing i-frame popping in video encoding and decoding

12/08/16 - 20160360219 - Methods and systems provide video compression to reduce a “popping” effect caused by differences in quality between a refresh frame (e.g., I-frame or IDR-frame) and neighboring frame(s). In an embodiment, a quality of a pre-definable number of frames preceding a refresh frame (“preceding frames”) may be increased. A quantization parameter
Inventors: Feng Yi, Yeping Su, Chris Y. Chung, Hsi-jung Wu, Xiaosong Zhou

Techniques for advanced chroma processing

10/20/16 - 20160309059 - Image and video processing techniques are disclosed for processing components of a color space individually by determining limits for each component based on the relationship between each component in a color space. These limits may then be used to clip each component such that the component values are within the
Inventors: Alexandros Michael Tourapis, Yeping Su, David William Singer, Hsi-jung Wu

Video encoding optimization of extended spaces including last stage processes

09/15/16 - 20160269739 - A video coding system may include an encoder performs motion-compensated prediction on a video signal in a second format converted from an input format of the video signal. The video coding system may also include a decoder to decode portions of the encoded video, and a filtering system that filters
Inventors: Alexandros Michael Tourapis, Yeping Su, David William Singer, Hsi-jung Wu

Adaptive chroma downsampling and color space conversion techniques

09/15/16 - 20160269733 - A method of adaptive chroma downsampling is presented. The method comprises converting a source image to a converted image in an output color format, applying a plurality of downsample filters to the converted image and estimating a distortion for each filter chose the filter that produces the minimum distortion. The
Inventors: Alexandros Michael Tourapis, Yeping Su, David William Singer, Hsi-jung Wu

De-juddering techniques for coded video

06/23/16 - 20160182911 - Judder artifacts are remedied in video coding system by employing frame rate conversion at an encoder. According to the disclosure, a source video sequence may be coded as base layer coded video at a first frame rate. An encoder may identify a portion of the coded video sequence that likely
Inventors: Yeping Su, Chris Y. Chung, Hsi-jung Wu, Xiaosong Zhou, Jiefu Zhai

Techniques in backwards compatible multi-layer compression of hdr video

05/05/16 - 20160127738 - A scalable coding system codes video as a base layer representation and an enhancement layer representation. A base layer coder may code an LDR representation of a source video. A predictor may predict an HDR representation of the source video from the coded base layer data. A comparator may generate
Inventors: Yeping Su, Chris Y. Chung, Hsi-jung Wu, Jiefu Zhai, Ke Zhang, Xiaosong Zhou

Yuv signal generation for high dynamic range video content

03/31/16 - 20160094823 - An encoder may include a luma transform, a transformer, and a chroma transform. The luma transform may determine a linear luminance value based upon a plurality of primary color values of a pixel. The transformer may generate a transformed luminance value based upon the linear luminance value and a plurality
Inventors: Jiefu Zhai, Yeping Su, Hsi-jung Wu, Chris Y. Chung, Xiaosong Zhou, Ke Zhang

Techniques for adaptive video streaming

03/10/16 - 20160073106 - In a video coding system, a common video sequence is coded multiple times to yield respective instances of coded video data. Each instance may be coded according to a set coding parameters derived from a target bit rate of a respective tier of service. Each tier may be coded according
Inventors: Yeping Su, Hsi-jung Wu, Ke Zhang, Chris Y. Chung, Xiaosong Zhou

Playback of video on demand

12/03/15 - 20150350714 - A method and system for caching and streaming media content, including predictively delivering and/or acquiring content is provided. In the system, client devices may be communicatively coupled in a network, and may access and share cached content. Video segments making up a media stream may be selectively delivered to the
Inventors: James O. Normile, Hsi-jung Wu, Xiaosong Zhou, Chris Y. Chung, Ke Zhang, Yeping Su

Dynamic range adaptive video coding system

12/03/15 - 20150350641 - A video coding/decoding system codes data efficiently even when input video data exhibits changes in dynamic range. The system may map pixel values of the first frame from a dynamic range specific to the input image data to a second dynamic range that applies universally to a plurality of frames
Inventors: Xiaosong Zhou, Jiefu Zhai, Yeping Su, Chris Y. Chung, Hsi-jung Wu

Techniques for hdr/wcr video coding

11/12/15 - 20150326896 - Systems and methods are provided for processing high quality video data, such as data having a higher than standard bit depth, a high dynamic range, or a wide or custom color gamut, to be compatible with conventional encoders and decoders without significant loss of quality. High quality data is encoded
Inventors: Yeping Su, Jiefu Zhai, Ke Zhang, Xiaosong Zhou, Hsi-jung Wu, Chris Y. Chung

Trick play in digital video streaming

01/15/15 - 20150016804 - System and methods for improved playback of a video stream are presented. Video snippets are identified that include a number of consecutive frames for playback. Snippets may be evenly temporally spaced in the video stream or may be content adaptive. Then the first frame of a snippet may be selected
Inventors: David L. Biderman, Xiaosong Zhou, Douglas Scott Price, Yeping Su, Chris Y. Chung, Hsi-jung Wu, Zhenheng Li, John Su, James D. Batson

Video processors for preserving detail in low-light scenes

10/30/14 - 20140321534 - Video coding systems and methods are provided that protect against various artifacts (e.g., banding artifacts) in decoded frame content. The embodiments to protect against introducing artifacts include pre-processing the input video frame, controlling the encoding parameters and/or post-processing the decoded video frame. A method for encoding a frame may include
Inventors: Yeping Su, Chris Y. Chung, Hao Pan, Hsi-jung Wu, Ke Zhang

Codec techniques for fast switching

09/18/14 - 20140269932 - A video streaming method for transitioning between multiple sequences of coded video data may include receiving and decoding transmission units from a first sequence of coded video data. In response to a request to transition to a second sequence of coded video data, the method may determine whether a time
Inventors: Yeping Su, Chris Y. Chung, Xiaosong Zhou, James Oliver Normile, Hsi-jung Wu, Thomas Jansen, Hyeonkuk Jeong, Joe S. Abuan, Douglas Scott Price

Adaptive streaming techniques

08/28/14 - 20140241415 - Systems and methods are presented for minimizing the suddenness and immediacy of changes to the video quality perceived by users due to bandwidth fluctuations and transitions between different bitrate streams. A method may include identifying an upcoming bitrate change in a bitstream and a nearest scene cut boundary from sync
Inventors: Yeping Su, Hao Pan, James O. Normile, Hsi-jung Wu

Error diffusion with color conversion and encoding

01/30/14 - 20140029846 - YCbCr image data may be dithered and converted into RGB data shown on a 8-bit or other bit display. Dither methods and image processors are provided which generate the banding artifact free image data during this process. Some methods and image processors may applying a stronger dither having a same
Inventors: Yeping Su, Jiefu Zhai, James Oliver Normile, Hsi-jung Wu, Hao Pan

Encoding techniques for banding reduction

01/30/14 - 20140029663 - Video encoders often produce banding artifacts on areas with smooth gradients and low levels of detail/noise. In this disclosure, a video encoding system identifies the banded areas and adjusts coding parameters accordingly. The video coder may include a pre-coding banding detector and a post-coding banding detector. The pre-coding detector may
Inventors: Yeping Su, Hsi-jung Wu, Hao Pan

Techniques for adaptive video streaming

12/12/13 - 20130329781 - A vide coding server may code a common video sequence into a plurality of coded data streams, each coded data stream representing the video sequence coded using coding parameters tailored for a respective transmission bit rate. The coding may cause a set of transmission units from among the coded data
Inventors: Yeping Su, Hsi-jung Wu, Hao Pan, Ke Zhang

Signal shaping techniques for video data that is susceptible to banding artifacts

09/12/13 - 20130235942 - Video coding systems and methods protect against banding artifacts in decoded image content. According to the method, a video coder may identify, from content of pixel blocks of a frame of video data, which pixel blocks are likely to exhibit banding artifacts from the video coding/decoding processes. The video coder
Inventors: Yeping Su, Hao Pan, Ke Zhang, Douglas Scott Price, James Oliver Normile, Hsi-jung Wu

Masking video artifacts with comfort noise

09/12/13 - 20130235931 - A system and method is presented to mask artifacts with content-adaptive comfort noise. Encoder side analysis may determine initial comfort noise characteristics. Noise parameters may then be developed for each frame or sequence of frames that define comfort noise patches that mask the artifacts. At the decoder, a comfort noise
Inventors: Yeping Su, Hsi-jung Wu, Chris Y. Chung

Advanced coding techniques

09/12/13 - 20130235928 - Embodiments of the present invention provide techniques for efficiently coding/decoding video data during circumstances when constraints are imposed on the video data. A frame from a video sequence may be marked as a delayed decoder refresh frame. Frames successive to the delayed decoder refresh frame in coding order may predictively
Inventors: Chris Y. Chung, Hao Pan, Jiefu Zhai, Yeping Su, Douglas Scott Price, Hsi-jung Wu, Xiaosong Zhou


### Yeping Su patent invention listings

The bibliographic references displayed about Yeping Su's patents are for a recent sample of Yeping Su'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 Yeping Su 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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