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1. 发明申请

US20140168511A1 Systems and Methods for Adaptive Scaling of Digital Images 有权
标题翻译：数字图像自适应缩放的系统和方法
公开(公告)号：US20140168511A1
公开(公告)日：2014-06-19
申请号：US14101918
申请日：2013-12-10
申请人： MARVELL WORLD TRADE LTD.
发明人： Yun Gong , Dam Le Quang
IPC分类号： H04N7/01
CPC分类号： H04N7/0125 , G06T3/403 , H04N7/0137 , H04N7/0142
摘要： Systems and methods are provided for upscaling a digital image. A digital image to be upscaled is accessed, where the digital image comprises a plurality of pixel values. A first half pixel value is computed for a first point in the digital image based on a plurality of pixel values of the digital image surrounding the first point and an activity level. A second half pixel value is computed for a second point in the digital image, and an interpolated pixel of an upscaled version of the digital image is determined using a plurality of the pixel values, the first half pixel value, and the second half pixel value.
摘要翻译：提供了用于升级数字图像的系统和方法。访问要放大的数字图像，其中数字图像包括多个像素值。基于围绕第一点的数字图像的多个像素值和活动水平，针对数字图像中的第一点计算前半个像素值。对于数字图像中的第二点计算第二半像素值，并且使用多个像素值，第一半像素值和第二半像素值来确定数字图像的放大版本的内插像素。

2. 发明授权

US09241093B2 Guided filter-based detail enhancement 有权
标题翻译：引导过滤器的细节增强
公开(公告)号：US09241093B2
公开(公告)日：2016-01-19
申请号：US14220528
申请日：2014-03-20
申请人： Marvell World Trade Ltd.
发明人： Yun Gong , Dam Le Quang
IPC分类号： H04N5/00 , H04N5/14
CPC分类号： H04N5/142 , G06T5/003 , G06T2207/10016 , G06T2207/20192 , H04N5/208
摘要： Systems and methods for generating a detail-enhanced video signal are provided. In a method for generating the detail-enhanced video signal, an input video signal is received. A first signal that is a linear transformation of the input video signal is generated. A detail signal is generated by determining a difference between the input video signal and the first signal, where the detail signal includes information that is added to the input video signal to generate the detail-enhanced video signal. A filtered detail signal is generated by removing noise from the detail signal. The filtered detail signal is multiplied by a gain function to generate a second signal. The gain function is based on an amount of variance in the input video signal. The input video signal and the second signal are combined to generate the detail-enhanced video signal.
摘要翻译：提供了用于产生细节增强视频信号的系统和方法。在用于产生细节增强视频信号的方法中，接收输入视频信号。产生作为输入视频信号的线性变换的第一信号。通过确定输入视频信号和第一信号之间的差异来产生细节信号，其中细节信号包括添加到输入视频信号以产生细节增强视频信号的信息。通过从细节信号中去除噪声来产生经滤波的细节信号。经滤波的细节信号乘以增益函数以产生第二信号。增益函数基于输入视频信号的方差量。输入视频信号和第二信号被组合以产生细节增强视频信号。

3. 发明申请

US20140285719A1 Guided Filter-Based Detail Enhancement 有权
标题翻译：引导过滤器的细节增强
公开(公告)号：US20140285719A1
公开(公告)日：2014-09-25
申请号：US14220528
申请日：2014-03-20
申请人： Marvell World Trade Ltd.
发明人： Yun Gong , Dam Le Quang
IPC分类号： H04N5/14
CPC分类号： H04N5/142 , G06T5/003 , G06T2207/10016 , G06T2207/20192 , H04N5/208
摘要： Systems and methods for generating a detail-enhanced video signal are provided. In a method for generating the detail-enhanced video signal, an input video signal is received. A first signal that is a linear transformation of the input video signal is generated. A detail signal is generated by determining a difference between the input video signal and the first signal, where the detail signal includes information that is added to the input video signal to generate the detail-enhanced video signal. A filtered detail signal is generated by removing noise from the detail signal. The filtered detail signal is multiplied by a gain function to generate a second signal. The gain function is based on an amount of variance in the input video signal. The input video signal and the second signal are combined to generate the detail-enhanced video signal.
摘要翻译：提供了用于产生细节增强视频信号的系统和方法。在用于产生细节增强视频信号的方法中，接收输入视频信号。产生作为输入视频信号的线性变换的第一信号。通过确定输入视频信号和第一信号之间的差异来产生细节信号，其中细节信号包括添加到输入视频信号以产生细节增强视频信号的信息。通过从细节信号中去除噪声来产生经滤波的细节信号。经滤波的细节信号乘以增益函数以产生第二信号。增益函数基于输入视频信号的方差量。输入视频信号和第二信号被组合以产生细节增强视频信号。

4. 发明授权

US08830395B2 Systems and methods for adaptive scaling of digital images 有权
标题翻译：数字图像自适应缩放的系统和方法
公开(公告)号：US08830395B2
公开(公告)日：2014-09-09
申请号：US14101918
申请日：2013-12-10
申请人： Marvell World Trade Ltd.
发明人： Yun Gong , Dam Le Quang
IPC分类号： H04N7/01 , H04N11/20
CPC分类号： H04N7/0125 , G06T3/403 , H04N7/0137 , H04N7/0142
摘要： Systems and methods are provided for upscaling a digital image. A digital image to be upscaled is accessed, where the digital image comprises a plurality of pixel values. A first half pixel value is computed for a first point in the digital image based on a plurality of pixel values of the digital image surrounding the first point and an activity level. A second half pixel value is computed for a second point in the digital image, and an interpolated pixel of an upscaled version of the digital image is determined using a plurality of the pixel values, the first half pixel value, and the second half pixel value.
摘要翻译：提供了用于升级数字图像的系统和方法。访问要放大的数字图像，其中数字图像包括多个像素值。基于围绕第一点的数字图像的多个像素值和活动水平，针对数字图像中的第一点计算前半个像素值。对于数字图像中的第二点计算第二半像素值，并且使用多个像素值，第一半像素值和第二半像素值来确定数字图像的放大版本的内插像素。

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