公开(公告)号：US09350899B2

公开(公告)日：2016-05-24

申请号：US13616830

申请日：2012-09-14

Applicant: Min Li ,  Chia-Yuan Teng ,  Gregory Allan VanSickle

Inventor： Min Li ,  Chia-Yuan Teng ,  Gregory Allan VanSickle

IPC: H04N7/01 ,  H04N11/20 ,  H04N1/40 ,  H04N9/64 ,  H04N19/59

CPC classification number: H04N1/40068 ,  H04N7/0102 ,  H04N9/64 ,  H04N11/20 ,  H04N19/59

Abstract: Described are a system and method to determine the initial luma and chroma phase such that the resulting image after chroma upsampling and scaling has zero phase difference between the luma and chroma components. Particularly, the described method may include receiving a subsampled input image having luma and chroma values. The method may then perform a phase computation of the input image to determine scaling parameters such that phase differences between all color components of an output image are zero. The method may then include performing a combined upscaling and upsampling process on the input image using the scaling parameters to generate an upscaled image with no phase difference from the subsampled image.

Abstract translation: 描述了确定初始亮度和色度相位的系统和方法，使得在色度上采样和缩放之后产生的图像在亮度和色度分量之间具有零相位差。 特别地，所描述的方法可以包括接收具有亮度和色度值的子采样输入图像。 该方法然后可以执行输入图像的相位计算，以确定缩放参数，使得输出图像的所有颜色分量之间的相位差为零。 该方法然后可以包括使用缩放参数对输入图像执行组合的升高和上采样处理，以生成与二次采样图像无相位差的放大图像。

公开(公告)号：US09165510B2

公开(公告)日：2015-10-20

申请号：US13329024

申请日：2011-12-16

Applicant: Min Dai ,  Ali Iranli ,  Chia-Yuan Teng

Inventor： Min Dai ,  Ali Iranli ,  Chia-Yuan Teng

IPC: G09G3/30 ,  G09G3/34

CPC classification number: G09G3/3406 ,  G09G2320/0247 ,  G09G2320/0646 ,  G09G2320/0653 ,  G09G2320/103 ,  G09G2340/16 ,  G09G2360/16

Abstract: The techniques of the disclosure are directed to reducing power consumption in a device through adaptive backlight level (ABL) scaling. The techniques may utilize a temporal approach in implementing the ABL scaling to adjust the backlight level of a display for a current video frame in a sequence of video frames presented on the display. The techniques may include receiving an initial backlight level adjustment for the current video frame and determining whether to adjust the backlight level adjustment for the current video frame based on a historical trend. The techniques may also determine the historical trend of backlight level adjustments between the current video frame and one or more preceding video frames in the sequence.

Abstract translation: 本公开的技术旨在通过自适应背光级（ABL）缩放来降低设备中的功耗。 这些技术可以利用实现ABL缩放的时间方法来调整显示器上呈现的视频帧序列中的当前视频帧的显示器的背光级。 这些技术可以包括接收针对当前视频帧的初始背光级调整，并且基于历史趋势确定是否调整当前视频帧的背光级调整。 这些技术还可以确定当前视频帧与序列中的一个或多个先前视频帧之间的背光级调整的历史趋势。

公开(公告)号：US08681867B2

公开(公告)日：2014-03-25

申请号：US11350666

申请日：2006-02-08

Applicant: Chia-Yuan Teng ,  Sharath Manjunath ,  Yan Ye

Inventor： Chia-Yuan Teng ,  Sharath Manjunath ,  Yan Ye

IPC: H04N11/02

CPC classification number: H04N19/117 ,  H04N19/14 ,  H04N19/176 ,  H04N19/61

Abstract: This disclosure describes selective deblock filtering techniques that are particularly useful with coding standards that do not specify in-loop deblock filtering for standard compliance. In accordance with this disclosure, deblock filtering may be selectively performed with respect to block boundaries of a given video block being coded, a motion compensation process can be performed using a filtered version of the prediction video frame used to code the given video block, or both. This disclosure also provides selection rules that can be applied to determine what type of deblocking techniques to apply in various scenarios. The selection rules may improve the video coding and may also ensure that mismatch between video blocks at an encoder and a decoder is not introduced by the deblock filtering.

Abstract translation: 本公开描述了选择性去块滤波技术，其特别适用于不规定用于标准符合性的循环去块滤波的编码标准。 根据本公开，可以相对于被编码的给定视频块的块边界来选择性地执行去块滤波，可以使用用于对给定视频块进行编码的预测视频帧的滤波版本来执行运动补偿处理，或 都。 本公开还提供了可以应用于确定在各种情况下应用何种类型的去块技术的选择规则。 选择规则可以改善视频编码，并且还可以确保编码器和解码器之间的视频块之间的不匹配不由去块滤波引入。

公开(公告)号：US08208563B2

公开(公告)日：2012-06-26

申请号：US12395244

申请日：2009-02-27

Applicant: Gokce Dane ,  Chia-yuan Teng

Inventor： Gokce Dane ,  Chia-yuan Teng

IPC: H04N11/02

CPC classification number: H04N19/577 ,  H04N7/0127 ,  H04N19/132 ,  H04N19/44 ,  H04N19/55 ,  H04N19/587 ,  H04N19/61 ,  H04N19/86

Abstract: This disclosure describes techniques for correcting artifacts that occur along a boundary of a substitute video unit generated using video unit substitution, e.g., motion-compensated video unit interpolation or extrapolation. In accordance with the techniques described in this disclosure, a frame substitution unit identifies first locations within a substitute video unit that correspond with a boundary that exists within a reference video unit and should exist within the substitute video unit, and corrects boundary artifacts in the first locations using a first boundary artifact correction technique. The frame substitution unit also identifies second locations within the substitute video unit that correspond with a boundary that exists within the substitute video unit and does not exist within the reference video unit and corrects boundary artifacts in the second locations using a second boundary artifact correction technique.

Abstract translation: 本公开描述了用于校正沿着使用视频单元替代（例如，运动补偿视频单元插值或外插）生成的替代视频单元的边界发生的伪像的技术。 根据本公开中描述的技术，帧替换单元识别与存在于参考视频单元内的边界对应的替代视频单元中的第一位置，并且应当存在于替代视频单元内，并且修正第一 使用第一边界伪像校正技术的位置。 帧替换单元还识别与替代视频单元内存在的边界对应的替代视频单元内的第二位置，并且不存在于参考视频单元内，并且使用第二边界伪像校正技术来校正第二位置中的边界伪影。

公开(公告)号：US20110110427A1

公开(公告)日：2011-05-12

申请号：US11350666

申请日：2006-02-08

Applicant: Chia-Yuan Teng ,  Sharath Manjunath ,  Yan Ye

Inventor： Chia-Yuan Teng ,  Sharath Manjunath ,  Yan Ye

IPC: H04N7/26

CPC classification number: H04N19/117 ,  H04N19/14 ,  H04N19/176 ,  H04N19/61

Abstract: This disclosure describes selective deblock filtering techniques that are particularly useful with coding standards that do not specify in-loop deblock filtering for standard compliance. In accordance with this disclosure, deblock filtering may be selectively performed with respect to block boundaries of a given video block being coded, a motion compensation process can be performed using a filtered version of the prediction video frame used to code the given video block, or both. This disclosure also provides selection rules that can be applied to determine what type of deblocking techniques to apply in various scenarios. The selection rules may improve the video coding and may also ensure that mismatch between video blocks at an encoder and a decoder is not introduced by the deblock filtering.

Abstract translation: 本公开描述了选择性去块滤波技术，其特别适用于不规定用于标准符合性的循环去块滤波的编码标准。 根据本公开，可以相对于被编码的给定视频块的块边界来选择性地执行去块滤波，可以使用用于对给定视频块进行编码的预测视频帧的滤波版本来执行运动补偿处理，或 都。 本公开还提供了可以应用于确定在各种情况下应用何种类型的去块技术的选择规则。 选择规则可以改善视频编码，并且还可以确保编码器和解码器之间的视频块之间的不匹配不由去块滤波引入。

公开(公告)号：US20100284460A1

公开(公告)日：2010-11-11

申请号：US12436946

申请日：2009-05-07

Applicant: Ming-Chang Tsai ,  Chia-Yuan Teng ,  Yan Ye

Inventor： Ming-Chang Tsai ,  Chia-Yuan Teng ,  Yan Ye

IPC: H04N7/12

CPC classification number: H04N19/55 ,  H04N19/132 ,  H04N19/136 ,  H04N19/162 ,  H04N19/17 ,  H04N19/176 ,  H04N19/61 ,  H04N19/70

Abstract: This disclosure describes techniques for region-of-interest (ROI) encoding. In accordance with the techniques described herein, an encoding device may determine a temporal spatial dependency value for a candidate reference video block for inter-coding a current block in a video frame. The encoding device may compare the temporal spatial dependency value to a threshold value and select a coding mode for the current block based on the comparison. A decoding device may receive data defining a ROI as well as the temporal spatial dependency value and decode a video block in the ROI based at least in part on the temporal spatial dependency value. In this manner, the techniques of this disclosure may allow a video content viewer the ability to choose a ROI to watch.

Abstract translation: 本公开描述了用于感兴趣区域（ROI）编码的技术。 根据本文描述的技术，编码设备可以确定候选参考视频块的时间空间依赖性值，用于对视频帧中的当前块进行帧间编码。 编码装置可以将时间空间相关性值与阈值进行比较，并且基于该比较选择当前块的编码模式。 解码装置可以至少部分地基于时间空间依赖性值来接收定义ROI的数据以及时间空间相关性值并对ROI中的视频块进行解码。 以这种方式，本公开的技术可以允许视频内容观看者选择要观看的ROI的能力。

公开(公告)号：US20100080459A1

公开(公告)日：2010-04-01

申请号：US12238775

申请日：2008-09-26

Applicant: Min Dai ,  Chia-Yuan Teng ,  King-Chuang Lai

Inventor： Min Dai ,  Chia-Yuan Teng ,  King-Chuang Lai

IPC: G06T7/00

CPC classification number: G06T5/40 ,  G06T5/009 ,  G06T2207/10016

Abstract: This disclosure describes techniques for performing content adaptive histogram enhancement. In accordance with the content adaptive histogram enhancement techniques of this disclosure, a frame of digital image data, e.g., digital video data or digital still image data, is classified into one of a plurality of content classes based on histogram of pixel intensity values of the frame. The content classes may represent various levels of brightness, contrast, or the like. To classify the frame into the corresponding content class, a shape of the histogram may be analyzed using various histogram statistics. Based on the content class of the frame, the pixel intensity values of the frame are mapped to new pixel intensity values.

Abstract translation: 本公开描述了用于执行内容自适应直方图增强的技术。 根据本公开的内容自适应直方图增强技术，基于数字图像数据（例如数字视频数据或数字静止图像数据）的帧被分类为多个内容类别中的一个，基于 帧。 内容类可以表示各种亮度，对比度等级。 为了将帧分类到相应的内容类中，可以使用各种直方图统计来分析直方图的形状。 基于帧的内容类别，将帧的像素强度值映射到新的像素强度值。

公开(公告)号：US20090148058A1

公开(公告)日：2009-06-11

申请号：US12111718

申请日：2008-04-29

Applicant: Gokce Dane ,  Khaled Helmi El-Maleh ,  Min Dai ,  Chia-Yuan Teng

Inventor： Gokce Dane ,  Khaled Helmi El-Maleh ,  Min Dai ,  Chia-Yuan Teng

IPC: G06K9/00

CPC classification number: H04N7/0132 ,  H04N5/145 ,  H04N19/105 ,  H04N19/132 ,  H04N19/139 ,  H04N19/154 ,  H04N19/156 ,  H04N19/172 ,  H04N19/51 ,  H04N19/521 ,  H04N19/573 ,  H04N19/577 ,  H04N19/587 ,  H04N19/61

Abstract: This disclosure describes selection of reference video units to be used for interpolation or extrapolation of a video unit, such as a video frame. A decoder may apply a quality-focused mode to select a reference frame based on quality criteria. The quality criteria may indicate a level of quality likely to be produced by a reference frame. If no reference frames satisfy the quality criteria, interpolation or extrapolation may be disabled. Display of an interpolated or extrapolated frame may be selectively enabled based on a quality analysis. A decoder may apply a resource-focused frame interpolation mode to enable or disable frame interpolation or extrapolation for some frames based on power and quality considerations. In one mode, frame interpolation may be disabled to conserve power when reference frames are not likely to produce satisfactory quality. In another mode, the threshold may be adjustable as a function of power saving requirements.

Abstract translation: 本公开描述了用于视频单元（例如视频帧）的插值或外插的参考视频单元的选择。 解码器可以基于质量标准应用以质量为中心的模式来选择参考帧。 质量标准可能表明可能由参考系产生的质量水平。 如果没有参考帧满足质量标准，则可以禁用内插或外推。 可以基于质量分析来选择性地启用插值或外插帧的显示。 解码器可以应用基于资源的帧插值模式，以基于功率和质量考虑为某些帧启用或禁用帧插值或外插。 在一种模式中，当参考帧不可能产生令人满意的质量时，帧内插可被禁用以节省功率。 在另一种模式中，阈值可以作为功率节省要求的函数来调整。

公开(公告)号：US20090147854A1

公开(公告)日：2009-06-11

申请号：US12111782

申请日：2008-04-29

Applicant: Gokce Dane ,  Khaled Helmi El-Maleh ,  Min Dai ,  Chia-Yuan Teng

Inventor： Gokce Dane ,  Khaled Helmi El-Maleh ,  Min Dai ,  Chia-Yuan Teng

IPC: H04N11/02

CPC classification number: H04N7/0132 ,  H04N5/145 ,  H04N19/105 ,  H04N19/132 ,  H04N19/139 ,  H04N19/154 ,  H04N19/156 ,  H04N19/172 ,  H04N19/51 ,  H04N19/521 ,  H04N19/573 ,  H04N19/577 ,  H04N19/587 ,  H04N19/61

Abstract: Display of an interpolated or extrapolated video unit, such as a video frame, may be selectively enabled based on a quality analysis. This disclosure also describes selection of reference video frames to be used for interpolation or extrapolation. A decoder may apply a quality-focused mode to select a reference frame based on quality criteria. The quality criteria may indicate a level of quality likely to be produced by a reference frame. If no reference frames satisfy the quality criteria, interpolation or extrapolation may be disabled. A decoder may apply a resource-focused frame interpolation mode to enable or disable frame interpolation or extrapolation for some frames based on power and quality considerations. In one mode, frame interpolation may be disabled to conserve power when reference frames are not likely to produce satisfactory quality. In another mode, the threshold may be adjustable as a function of power saving requirements of the decoder.

Abstract translation: 可以基于质量分析来选择性地启用内插或外推视频单元（例如视频帧）的显示。 本公开还描述了用于插值或外推的参考视频帧的选择。 解码器可以基于质量标准应用以质量为中心的模式来选择参考帧。 质量标准可能表明可能由参考系产生的质量水平。 如果没有参考帧满足质量标准，则可以禁用内插或外推。 解码器可以应用基于资源的帧插值模式，以基于功率和质量考虑为某些帧启用或禁用帧插值或外插。 在一种模式中，当参考帧不可能产生令人满意的质量时，帧内插可被禁用以节省功率。 在另一种模式中，阈值可以作为解码器节能要求的函数来调节。

公开(公告)号：US20090097575A1

公开(公告)日：2009-04-16

申请号：US11870353

申请日：2007-10-10

Applicant: Chia-Yuan Teng ,  Sharath Manjunatha

Inventor： Chia-Yuan Teng ,  Sharath Manjunatha

IPC: H04N7/26

CPC classification number: H04N19/117 ,  H04N19/157 ,  H04N19/86

Abstract: Techniques to remove inherited blockiness with a low million instructions per second (MIPs) are provided. In one configuration, a device comprises a processor operative to implement a set of instructions to universally correct blockiness. The processor commandeers the in-loop deblocking filtering engine and universally corrects blockiness, including inherited blockiness, using the in-loop deblocking filtering engine.

Abstract translation: 提供了以每秒百万条指令（MIPs）来删除遗留的块效应的技术。 在一种配置中，设备包括处理器，其操作以实现一组通用校正块的指令。 处理器指挥循环中的去块滤波引擎，并通过使用循环中的去块滤波引擎来普遍校正包含继承的块效应的块效应。