公开(公告)号：US11847995B2

公开(公告)日：2023-12-19

申请号：US17919335

申请日：2020-06-05

Applicant: QUALCOMM Incorporated

Inventor： Ike Ikizyan ,  Nan Zhang ,  Daiou Zeng ,  Xinchao Yang ,  Yongjun Xu

IPC: G09G5/36 ,  G06T5/40

CPC classification number: G09G5/36 ,  G06T5/40 ,  G09G2320/0626 ,  G09G2320/0666 ,  G09G2340/0435

Abstract: In general, aspects disclosed herein provide techniques for processing video data. Certain aspects provide a method for processing video data comprising a plurality of frames for display on a display as discussed herein. The method includes determining a sampling rate (N) based on a frame rate used for displaying the video data on the display. The sampling rate N is greater than 1. The method further includes, for every N frames of the plurality of frames, processing one or more statistics associated with a frame determine one or more display settings. The method further includes outputting to the display the corresponding N frames of the plurality of frames using the one or more display settings.

公开(公告)号：US10652512B1

公开(公告)日：2020-05-12

申请号：US16197296

申请日：2018-11-20

Applicant: QUALCOMM Incorporated

Inventor： Ike Ikizyan

IPC: H04N19/98 ,  H04N9/64 ,  H04N11/08 ,  G06F17/11

Abstract: The present disclosure relates to methods and devices for video processing. In one aspect, the device may obtain a video stream with a plurality of frames. The device can also map, for each frame of the plurality of frames, a first luminance level associated with the frame to a second luminance level based on a transfer function. In some aspects, the transfer function can also include a first function for a first luminance level range and a second function for a second luminance level range, the first function being non-linear and the second function being polynomial. Additionally, the device can indicate, for each frame of the plurality frames, the second luminance level within the video stream. Moreover, the transfer function can include a third function for a third luminance level range, wherein the third function may be between the first and second functions.

公开(公告)号：US10567803B2

公开(公告)日：2020-02-18

申请号：US15950504

申请日：2018-04-11

Applicant: QUALCOMM Incorporated

Inventor： Natan Haim Jacobson ,  Ike Ikizyan ,  Vijayaraghavan Thirumalai ,  Rajan Laxman Joshi

IPC: H04N19/65 ,  H04N19/176 ,  H04N19/91 ,  H04N19/46 ,  H04N19/124 ,  H04N19/98 ,  H04N19/53 ,  H04N19/136 ,  H04N19/182 ,  H04N19/82

Abstract: A method of content compression including receiving a first block of samples including at least a first sample and a second sample, calculating a predictor value for the first block of samples, calculating a residual between the predictor value and the first sample, quantizing the residual to generate a quantized residual, de-quantizing the quantized residual to generate a de-quantized residual, reconstructing the first sample using the de-quantized residual and the predictor value to generate a first reconstructed sample, calculating an error value based on the first sample and the first reconstructed sample, and modifying the second sample by the error value.

公开(公告)号：US10432952B2

公开(公告)日：2019-10-01

申请号：US15353468

申请日：2016-11-16

Applicant: QUALCOMM Incorporated

Inventor： Natan Haim Jacobson ,  Vijayaraghavan Thirumalai ,  Ike Ikizyan ,  Rajan Laxman Joshi

IPC: H04N19/152 ,  H04N19/30 ,  H04N19/176 ,  H04N19/149 ,  H04N19/115 ,  H04N19/124

Abstract: Provided are systems and methods for used fixed-point instead of floating point techniques in order to calculate various parameters for coding video data, including target rate, QP adjustment, buffer fullness, a Lagrangian parameters for a bitrate, and/or a Lagrangian parameter for the fullness of the buffer. By determining one or more of the parameters using fixed-point, hardware implementation costs may be decreased.

公开(公告)号：US10200697B2

公开(公告)日：2019-02-05

申请号：US15203721

申请日：2016-07-06

Applicant: QUALCOMM Incorporated

Inventor： Ike Ikizyan ,  Natan Haim Jacobson

IPC: H04N19/182 ,  H04N19/146 ,  H04N19/115 ,  H04N19/186 ,  H04N19/85 ,  H04N19/423 ,  H04N9/64

Abstract: Methods and apparatuses for display stream compression pixel format extension using subpixel packing are disclosed. In one aspect, the method involves packing pixel values arranged in an O-channel format for encoding by an M-channel codec. The method may further involve receiving a set of input pixel values, each input pixel value including O input subpixel values arranged in the O-channel format. The method may involve rearranging each of the input subpixel values into a set of output pixel values, each set of output pixel values comprising M output subpixel values arranged in an M-channel format, O having a greater value than M, wherein at least a portion of the rearranged M output subpixels maintain their relative spatial positioning from prior to being rearranged from the O input subpixel values. The method may also involve providing the output pixel values to the M-channel codec.

公开(公告)号：US20180165814A1

公开(公告)日：2018-06-14

申请号：US15458488

申请日：2017-03-14

Applicant: QUALCOMM Incorporated

Inventor： Rahul Gulati ,  Alex Kwang Ho Jong ,  John Chi Kit Wong ,  Sanjay Gupta ,  Ike Ikizyan

IPC: G06T7/11

CPC classification number: G06T7/11 ,  G06T2207/20021 ,  G06T2207/20104 ,  G06T2207/30252

Abstract: Techniques of this disclosure may include processing one or more regions-of-interest (ROI) of an input image through a model of a display processor, calculating a first data integrity check value on the one or more ROI of the input image after processing through the model, processing the input image by the display processor, calculating a second data integrity check value on the one or more ROI by the display processor after the display processor processes the input image, comparing the first data integrity check value to the second data integrity check value, and generating an interrupt if the comparison indicates that the first data integrity check value and the second data integrity check value do not match.

公开(公告)号：US20170076431A1

公开(公告)日：2017-03-16

申请号：US14939749

申请日：2015-11-12

Applicant: QUALCOMM INCORPORATED

Inventor： Min Dai ,  Ike Ikizyan ,  Ai-Mei Huang

IPC: G06T5/00 ,  G06T3/40 ,  H04N1/60

CPC classification number: G06T5/002 ,  G06T3/4007 ,  G06T5/009 ,  G06T2207/10024 ,  H04N1/60

Abstract: In an example, a method for image processing may include inputting a first pixel value corresponding to a first pixel of an image into a LUT. The LUT may map one or more LUT input values to one or more LUT output values. The first pixel value may correspond to a first LUT input value that maps to a first LUT output value in the LUT. The first pixel may include one or more pixel values. The method may include generating a noise value for the first LUT input value. The method may include generating a first interpolated LUT output value for the first LUT input value based on the noise value. The method may include transforming the image into a transformed image using the first interpolated LUT output value.

Abstract translation: 在一个示例中，用于图像处理的方法可以包括将对应于图像的第一像素的第一像素值输入到LUT中。 LUT可以将一个或多个LUT输入值映射到一个或多个LUT输出值。 第一像素值可以对应于映射到LUT中的第一LUT输出值的第一LUT输入值。 第一像素可以包括一个或多个像素值。 该方法可以包括产生第一LUT输入值的噪声值。 该方法可以包括基于噪声值产生第一LUT输入值的第一内插LUT输出值。 该方法可以包括使用第一内插LUT输出值将图像变换成变换图像。