-
公开(公告)号：US10783621B2
公开(公告)日：2020-09-22
申请号：US15986184
申请日：2018-05-22
Applicant: Huawei Technologies Co., Ltd.
Inventor： Meng Li , Hai Chen , Xiaozhen Zheng , Jianhua Zheng
Abstract: A method and an apparatus for processing a high dynamic range (HDR) image, and a terminal device to improve quantization quality, where the method includes obtaining brightness information of an image, processing the brightness information to obtain processed image information, quantizing the processed image information to obtain quantized image information, and encoding the quantized image information to obtain encoded image information.
-
公开(公告)号：US20150256805A1
公开(公告)日：2015-09-10
申请号：US14719590
申请日：2015-05-22
Applicant: Huawei Technologies Co., Ltd.
Inventor： Shuiping Li , Hai Chen
CPC classification number: H04N9/646 , G06T3/4015 , G06T2207/10024 , G06T2207/20172 , H04N9/045
Abstract: An image processing method and apparatus, and an imaging device are provided. The method includes: obtaining a first green component value and a first red component value or first blue component value that are of the current pixel and obtained by using an interpolation algorithm, a minimum first-gradient value in horizontal and vertical directions, a minimum second-gradient value in inclined directions, a threshold for a green component, and a threshold for a red component or blue component; obtaining a corrected value of the green component and a corrected value of the red component or blue component of the current pixel; and obtaining a second green component value and a second red component value or second blue component value of the current pixel. The method may be used to reduce crosstalk of a color component in which the current pixel is located on other two color components obtained by interpolation.
Abstract translation: 提供了图像处理方法和装置以及成像装置。 该方法包括：获得当前像素并通过使用插值算法获得的第一绿色分量值和第一红色分量值或第一蓝色分量值，水平和垂直方向上的最小第一梯度值，最小二乘法 倾斜方向的梯度值，绿色分量的阈值和红色分量或蓝色分量的阈值; 获得当前像素的绿色分量的校正值和红色分量或蓝色分量的校正值; 以及获得当前像素的第二绿色分量值和第二红色分量值或第二蓝色分量值。 该方法可以用于减少当前像素位于通过插值获得的其他两个颜色分量上的颜色分量的串扰。
-
公开(公告)号：US20150208025A1
公开(公告)日：2015-07-23
申请号：US14601722
申请日：2015-01-21
Applicant: Huawei Technologies Co., Ltd.
Inventor： Hai Chen , Fengwei Zhang
CPC classification number: H04N7/012 , H04N7/0125 , H04N7/0142 , H04N7/0157 , H04N9/78
Abstract: A video processing method and apparatus, which relate to the field of multimedia, and the method includes acquiring, by an video processing apparatus, two field images of an interlaced frame image in an interlaced video; performing temporal deinterlacing on either field image in the two field images to obtain a temporal virtual field image, and performing spatial deinterlacing on the either field image to obtain a spatial virtual field image; performing directional combing detection on the temporal virtual field image along a preset candidate combing detection direction with reference to the other field image in the interlaced frame image, to determine whether combing exists in the temporal virtual field image; and according to this, selecting the temporal virtual field image or the spatial virtual field image to be fused with the other field image to generate a new image.
Abstract translation: 涉及多媒体领域的视频处理方法和装置，该方法包括：通过视频处理装置获取隔行视频中的隔行帧图像的两个场图像; 对所述两个场图像中的任一场图像执行时间去隔行扫描以获得时间虚拟场图像，以及对所述场图像执行空间去隔行扫描以获得空间虚拟场图像; 参照所述隔行扫描帧图像中的其他场图像，沿着预设的候选组合检测方向对所述时间虚拟场图像进行定向组合检测，以确定是否存在所述时间虚拟场图像中的组合; 并且根据此，选择要与其他场图像融合的时间虚拟场图像或空间虚拟场图像以生成新图像。
-
公开(公告)号：US11734386B2
公开(公告)日：2023-08-22
申请号：US17560472
申请日：2021-12-23
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Zhenjiang Dong , Chio In Ieong , Hu Liu , Hai Chen
Abstract: A matrix processing method performed by a graphics processing unit (GPU) includes: determining a plurality of non-zero elements in a to-be-processed matrix at a processor in the GPU; generating a distribution matrix of the to-be-processed matrix at the processor, where the distribution matrix comprises identities for indicating positions of the plurality of non-zero elements in the to-be-processed matrix; obtaining a target matrix from another matrix by using the distribution matrix at a logic circuit in the processor, where the target matrix comprises a plurality of target elements from the another matrix; and performing matrix processing on the plurality of non-zero elements and the target matrix to obtain an operation result at the processor.
-
公开(公告)号：US10827102B2
公开(公告)日：2020-11-03
申请号：US16529116
申请日：2019-08-01
Applicant: Huawei Technologies Co., Ltd.
Abstract: An image processing apparatus, which includes a first physical computing circuit, configured to receive a plurality of first analog signals output by an image sensor, and perform a convolution operation on the plurality of first analog signals to obtain a second analog signal. The plurality of first analog signals are in a one-to-one correspondence with a plurality of pieces of pixel data of a to-be-recognized image. The first physical computing circuit comprises at least one multiplication circuit array and at least one subtraction circuit, the at least one multiplication circuit array is in a one-to-one correspondence with the at least one subtraction circuit, a multiplication circuit in each multiplication circuit array comprises a differential pair transistor, each multiplication circuit array implements the convolution operation on the plurality of first analog signals using a plurality of multiplication circuits and a corresponding subtraction circuit.
-
Patent Agency Ranking
公开(公告)号：US20190356821A1
公开(公告)日：2019-11-21
申请号：US16529116
申请日：2019-08-01
Applicant: Huawei Technologies Co., Ltd.
Abstract: An image processing apparatus, which includes a first physical computing circuit, configured to receive a plurality of first analog signals output by an image sensor, and perform a convolution operation on the plurality of first analog signals to obtain a second analog signal. The plurality of first analog signals are in a one-to-one correspondence with a plurality of pieces of pixel data of a to-be-recognized image. The first physical computing circuit comprises at least one multiplication circuit array and at least one subtraction circuit, the at least one multiplication circuit array is in a one-to-one correspondence with the at least one subtraction circuit, a multiplication circuit in each multiplication circuit array comprises a differential pair transistor, each multiplication circuit array implements the convolution operation on the plurality of first analog signals using a plurality of multiplication circuits and a corresponding subtraction circuit.
-
公开(公告)号：US09516260B2
公开(公告)日：2016-12-06
申请号：US14601722
申请日：2015-01-21
Applicant: Huawei Technologies Co., Ltd.
Inventor： Hai Chen , Fengwei Zhang
CPC classification number: H04N7/012 , H04N7/0125 , H04N7/0142 , H04N7/0157 , H04N9/78
Abstract: A video processing method and apparatus, which relate to the field of multimedia, and the method includes acquiring, by an video processing apparatus, two field images of an interlaced frame image in an interlaced video; performing temporal deinterlacing on either field image in the two field images to obtain a temporal virtual field image, and performing spatial deinterlacing on the either field image to obtain a spatial virtual field image; performing directional combing detection on the temporal virtual field image along a preset candidate combing detection direction with reference to the other field image in the interlaced frame image, to determine whether combing exists in the temporal virtual field image; and according to this, selecting the temporal virtual field image or the spatial virtual field image to be fused with the other field image to generate a new image.
Abstract translation: 涉及多媒体领域的视频处理方法和装置，该方法包括：通过视频处理装置获取隔行视频中的隔行帧图像的两个场图像; 对所述两个场图像中的任一场图像执行时间去隔行扫描以获得时间虚拟场图像，以及对所述场图像执行空间去隔行扫描以获得空间虚拟场图像; 参照所述隔行扫描帧图像中的其他场图像，沿着预设的候选组合检测方向对所述时间虚拟场图像进行定向组合检测，以确定是否存在所述时间虚拟场图像中的组合; 并且根据此，选择要与其他场图像融合的时间虚拟场图像或空间虚拟场图像以生成新图像。
-
公开(公告)号：US09451172B2
公开(公告)日：2016-09-20
申请号：US14585604
申请日：2014-12-30
Applicant: Huawei Technologies Co., Ltd.
Inventor： Hai Chen , Meijun Wan
CPC classification number: H04N5/2352 , G06T5/007 , G06T5/50 , G06T2207/10144 , G06T2207/20208 , H04N5/23254 , H04N5/23267
Abstract: A method and an apparatus for correcting a multi-exposure motion image are disclosed, where the method includes determining a luminance mapping function, where the luminance mapping function is a luminance mapping relationship between a reference frame and multiple extended frames; mapping a luminance of an extended frame by using the luminance mapping relationship to obtain a virtual frame; calculating a global motion vector between the virtual frame and the reference frame; correcting a pixel of the extended frame according to the global motion vector to obtain a first extended frame after correction; detecting a pixel of the first extended frame according to the reference frame to obtain a local error pixel of the first extended frame; and correcting a luminance of the local error pixel of the first extended frame to obtain a second extended frame after correction.
Abstract translation: 公开了一种用于校正多曝光运动图像的方法和装置，其中所述方法包括确定亮度映射函数，其中亮度映射函数是参考帧与多个扩展帧之间的亮度映射关系; 通过使用亮度映射关系映射扩展帧的亮度以获得虚拟帧; 计算虚拟帧和参考帧之间的全局运动矢量; 根据全局运动矢量校正扩展帧的像素，以获得校正后的第一延伸帧; 根据参考帧检测第一扩展帧的像素以获得第一扩展帧的局部误差像素; 以及校正所述第一扩展帧的所述局部误差像素的亮度以在校正之后获得第二延伸帧。
-
公开(公告)号：US20190188837A1
公开(公告)日：2019-06-20
申请号：US16281606
申请日：2019-02-21
Applicant: Huawei Technologies Co., Ltd.
Inventor： Meng Li , Hai Chen , Jianhua Zheng
IPC: G06T5/00
CPC classification number: G06T5/009 , G06T2207/10024 , G06T2207/20208 , H04N19/85 , H04N21/2343 , H04N21/235
Abstract: An image processing method and apparatus, where the method includes determining a maximum value in nonlinear primary color values of all components of each pixel of a first to-be-processed image, determining dynamic parameters of a first transfer function, converting the maximum value of each pixel into a transfer value based on the first transfer function for which the dynamic parameters are determined, calculating a ratio between the transfer value and the maximum value of each pixel, and adjusting a dynamic range for the nonlinear primary color values of all the components of each pixel based on the ratio to obtain nonlinear primary color values of all components of each corresponding pixel of a first target image.
-
20.发明授权公开(公告)号：US09240038B2
公开(公告)日：2016-01-19
申请号：US13892119
申请日：2013-05-10
Applicant: Huawei Technologies Co., LTD
Inventor： Hai Chen
CPC classification number: G06T5/10 , G06T5/002 , G06T2207/20021 , G06T2207/20192
Abstract: Embodiments of the present invention provide a method and an apparatus for acquiring a weight coefficient of a digital filter so as to enhance a processing effect of images or videos and reduce the complexity of operations. The method includes: extracting global block features and local block features of image blocks, where the image blocks include a first image block and a second image block; acquiring an image block distance fs between the first image block and the second image block according to a global block feature and local block features of the first image block as well as a global block feature and local block features of the second image block; and evaluating a value of e fs/θ2.
Abstract translation: 本发明的实施例提供一种用于获取数字滤波器的权重系数的方法和装置，以增强图像或视频的处理效果并降低操作的复杂性。 该方法包括：提取图像块的全局块特征和局部块特征，其中图像块包括第一图像块和第二图像块; 根据第一图像块的全局块特征和局部块特征以及第二图像块的全局块特征和局部块特征获取第一图像块和第二图像块之间的图像块距离fs; 并评估e fs /＆thetas的值; 2。
-
-
-
-
-
-
-
-
-
Search Results
30
records
(took 0.014 seconds)
