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    HIERARCHICAL HISTOGRAM CALCULATION WITH APPLICATION TO PALETTE TABLE DERIVATION
    11.
    发明申请
    HIERARCHICAL HISTOGRAM CALCULATION WITH APPLICATION TO PALETTE TABLE DERIVATION 有权

    公开(公告)号：US20210099699A1

    公开(公告)日：2021-04-01

    申请号：US16588772

    申请日：2019-09-30

    Applicant: ATI Technologies ULC

    Inventor： Feng Pan ,  Wei Gao ,  Yang Liu ,  Crystal Yeong-Pian Sau ,  Haibo Liu ,  Edward A. Harold ,  Ying Luo ,  Ihab Amer ,  Gabor Sines

    IPC: H04N19/115 ,  H04N19/186 ,  H04N19/182 ,  H04N19/176

    Abstract: Systems, apparatuses, and methods for calculating multi-pass histograms for palette table derivation are disclosed. An encoder calculates a first histogram for a first portion of most significant bits (MSBs) of pixel component values of a block of an image or video frame. Then, the encoder selects a given number of the highest pixel count bins from the first histogram. The encoder then increases the granularity of these selected highest pixel count bins by evaluating one or more additional bits from the pixel component values. A second histogram is calculated for the concatenation of the original first portion MSBs from the highest pixel count bins and the one or more additional bits, and the highest pixel count bins are selected from the second histogram. A palette table is derived based on these highest pixel count bins selected from the second histogram, and the block is encoded using the palette table.

    GAME ENGINE APPLICATION DIRECT TO VIDEO ENCODER RENDERING
    12.
    发明申请
    GAME ENGINE APPLICATION DIRECT TO VIDEO ENCODER RENDERING 审中-公开

    公开(公告)号：US20190158704A1

    公开(公告)日：2019-05-23

    申请号：US15816765

    申请日：2017-11-17

    Applicant: ATI Technologies ULC

    Inventor： Gabor Sines ,  Kyle Plumadore ,  Yang Liu ,  Ihab Amer ,  Boris Ivanovic

    IPC: H04N1/60 ,  G06T1/20 ,  G06T9/00 ,  A63F13/5258

    Abstract: Systems, apparatuses, and methods for rendering images directly to a video encoder are disclosed. A game engine includes an embedded rendering unit configured to render images in different color spaces depending on the mode. The rendering unit renders images for a first color space only to be driven directly to a display while operating in a first mode. The rendering unit renders images for a second color space only which are provided directly to a video encoder while operating in a second mode. In a third mode, the rendering unit renders images for both color spaces. In one embodiment, the first color space is RGB and the second color space is YUV. The game engine also generates a plurality of attributes associated with each rendered image and the video encoder encodes each rendered image into an encoded bitstream based on the attributes associated with the rendered image.

    SERVER-BASED ENCODING OF ADJUSTABLE FRAME RATE CONTENT
    14.
    发明申请
    SERVER-BASED ENCODING OF ADJUSTABLE FRAME RATE CONTENT 审中-公开

    公开(公告)号：US20190104311A1

    公开(公告)日：2019-04-04

    申请号：US15721078

    申请日：2017-09-29

    Applicant: ATI Technologies ULC

    Inventor： Ihab Amer ,  Boris Ivanovic ,  Gabor Sines ,  Yang Liu ,  Ho Hin Lau ,  Haibo Liu ,  Kyle Plumadore

    IPC: H04N19/137 ,  H04N19/115

    Abstract: Systems, apparatuses, and methods for encoding bitstreams of uniquely rendered video frames with variable frame rates are disclosed. A rendering unit and an encoder in a server are coupled via a network to a client with a decoder. The rendering unit dynamically adjusts the frame rate of uniquely rendered frames. Depending on the embodiment, the rendering unit conveys a constant frame rate to the encoder by repeating some frames or the rendering unit conveys a variable frame rate to the encoder by conveying only uniquely rendered frames to the encoder. Depending on the embodiment, the encoder conveys a constant frame rate bitstream to the decoder by encoding repeated frames as skip frames, or the encoder conveys a variable frame rate bitstream to the decoder by dropping repeated frames from the bitstream.

    Text and line detection in video encode by using co-sited gradient and variance values
    17.
    发明授权
    Text and line detection in video encode by using co-sited gradient and variance values 有权

    公开(公告)号：US11490090B2

    公开(公告)日：2022-11-01

    申请号：US17138812

    申请日：2020-12-30

    Applicant: ATI Technologies ULC

    Inventor： Mehdi Saeedi ,  Sai Harshita Tupili ,  Yang Liu ,  Mingkai Shao ,  Gabor Sines

    IPC: H04N19/136 ,  H04N19/103 ,  H04N19/172

    Abstract: Methods and devices are provided for encoding video. By using co-sited gradient and variance values to detect text and line in frames of the video. A processor is configured to receive a plurality of frames of video, determine, for a portion of a frame, a variance of the portion of the frame and a gradient of the portion of the frame and encode, using one of a plurality of different encoding qualities, the portion of the frame based on the gradient and the variance of the portion of the frame. Encoding is performed at both the sub-frame level and frame level. The portion of the frame is classified into one of a plurality of categories based on the gradient and variance and encoded based on the category.

    Graphics rendering with encoder feedback
    18.
    发明授权
    Graphics rendering with encoder feedback 有权

    公开(公告)号：US11830225B2

    公开(公告)日：2023-11-28

    申请号：US15993074

    申请日：2018-05-30

    Applicant: ATI TECHNOLOGIES ULC

    Inventor： Yang Liu ,  Ihab Amer ,  Gabor Sines ,  Boris Ivanovic ,  Jinbo Qiu

    IPC: G06T9/00 ,  G06T15/00

    CPC classification number: G06T9/00 ,  G06T15/005 ,  G06T2210/08 ,  G06T2210/36

    Abstract: A feedback processing module includes a memory configured to store feedback received from an encoder. The feedback includes parameters associated with encoded graphics content generated by a graphics engine. The feedback processing module also includes a processor configured to generate configuration information for the graphics engine based on the feedback. The graphics engine is configured to execute a workload based on the configuration information. In some cases, the feedback processing module is also configured to receive feedback from a decoder that is used to decode the graphics content that is encoded by the encoder and generate the configuration information based on the feedback received from the decoder.

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