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公开(公告)号：US11769234B2
公开(公告)日：2023-09-26
申请号：US17065334
申请日：2020-10-07
Applicant: QUALCOMM Incorporated
Inventor： Min Li , Ike Ikizyan , Sudeep Ravi Kottilingal , Gopikrishnaiah Andandan
CPC classification number: G06T5/009 , G06T5/40 , G06T2207/10016 , G06T2207/20004 , G06T2207/20072 , G06T2207/20208
Abstract: The present disclosure relates to methods and devices for video or frame processing including an apparatus, e.g., a video or frame processor. In some aspects, the apparatus may receive a video stream including a plurality of frames, each of the plurality of frames including luminance information. The apparatus may also perform a histogram analysis on the luminance information for each of the plurality of frames. Additionally, the apparatus may determine whether a difference between the luminance information for each of the plurality of frames and a current luminance distribution is greater than a perceptual threshold. The apparatus may also calculate an updated tone mapping configuration based on the luminance information for a frame when the difference between the luminance information for the frame and the current luminance distribution is greater than the perceptual threshold.
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Patent Agency Ranking
公开(公告)号：US20220366196A1
公开(公告)日：2022-11-17
申请号：US17876362
申请日：2022-07-28
Applicant: QUALCOMM Incorporated
Inventor： Ike IKIZYAN , Min Li
Abstract: The present disclosure relates to methods and apparatus for image processing. The apparatus can generate object mask information for one or more objects in a first image of a plurality of images in a scene. In some aspects, the first image can be at least one of a downscaled image, a down-sampled image, or a low resolution image. The apparatus can also determine one or more object classifications of the first image based on the generated object mask information. Additionally, the apparatus can identify a modification to at least one of the one or more object classifications based on a second image of the plurality of images in the scene. In some aspects, the apparatus can adjust or maintain the one or more object classifications based on the identified modification to at least one of the one or more object classifications.
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公开(公告)号：US09445007B1
公开(公告)日：2016-09-13
申请号：US14631588
申请日：2015-02-25
Applicant: QUALCOMM Incorporated
Inventor： Feng Li , Shu Fei Fan , Shilpi Sahu , Min Li , Yunqiang Chen , Xiaoyun Jiang
CPC classification number: H04N5/23296 , G06T3/40 , G06T3/4007 , G06T5/003
Abstract: In some cases, conventional digital zoom techniques can lead to poor quality images. Disclosed are systems and methods for improving the quality of images generated by digital zoom. For example, in some embodiments, a parallel structure is utilized where an image is passed through a sharpener and a 2D directional upscaler at the same time. Upscaling operations are then performed on the sharpened image. The upscaled sharpened image is added to the output of the 2D directional upscaler to produce an enhanced image.
Abstract translation: 在某些情况下，常规的数字变焦技术可能导致质量差的图像。 公开了用于改善由数字变焦产生的图像质量的系统和方法。 例如，在一些实施例中，利用平行结构，其中图像同时通过磨刀器和2D定向升降器。 然后在锐化的图像上执行升序操作。 放大的锐化图像被添加到2D定向放大器的输出以产生增强的图像。
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公开(公告)号：US11436445B2
公开(公告)日：2022-09-06
申请号：US16841518
申请日：2020-04-06
Applicant: QUALCOMM Incorporated
Inventor： Ike Ikizyan , Min Li
Abstract: The present disclosure relates to methods and apparatus for image processing. The apparatus can generate object mask information for one or more objects in a first image of a plurality of images in a scene. In some aspects, the first image can be at least one of a downscaled image, a down-sampled image, or a low resolution image. The apparatus can also determine one or more object classifications of the first image based on the generated object mask information. Additionally, the apparatus can identify a modification to at least one of the one or more object classifications based on a second image of the plurality of images in the scene. In some aspects, the apparatus can adjust or maintain the one or more object classifications based on the identified modification to at least one of the one or more object classifications.
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公开(公告)号：US20160248984A1
公开(公告)日：2016-08-25
申请号：US14631588
申请日：2015-02-25
Applicant: QUALCOMM Incorporated
Inventor： Feng Li , Shu Fei Fan , Shilpi Sahu , Min Li , Yunqiang Chen , Xiaoyun Jiang
CPC classification number: H04N5/23296 , G06T3/40 , G06T3/4007 , G06T5/003
Abstract: In some cases, conventional digital zoom techniques can lead to poor quality images. Disclosed are systems and methods for improving the quality of images generated by digital zoom. For example, in some embodiments, a parallel structure is utilized where an image is passed through a sharpener and a 2D directional upscaler at the same time. Upscaling operations are then performed on the sharpened image. The upscaled sharpened image is added to the output of the 2D directional upscaler to produce an enhanced image.
Abstract translation: 在某些情况下，常规的数字变焦技术可能导致质量差的图像。 公开了用于改善由数字变焦产生的图像质量的系统和方法。 例如，在一些实施例中，利用平行结构，其中图像同时通过磨刀器和2D定向升降器。 然后在锐化的图像上执行升序操作。 放大的锐化图像被添加到2D定向放大器的输出以产生增强的图像。
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6.发明申请公开(公告)号：US20170061580A1
公开(公告)日：2017-03-02
申请号：US15088764
申请日：2016-04-01
Applicant: QUALCOMM Incorporated
Inventor： Daniel Stan , Min Li , Vladimir Lachine
CPC classification number: G06T3/4007 , G06K9/4647 , G06K9/56 , G06T3/4015 , G06T3/403
Abstract: Rescaling or reconstructing of a digital image may be accomplished by directional interpolation, so that interpolation is done in the direction perpendicular to the gradient—the direction in which the change in pixel values is the smallest. Each pixel is generated by interpolation in the output image as a weighted average of nearby pixels, in which the weighting is done in the direction of the gradient. The interpolation is accomplished with an adaptive filter that has an elliptical frequency response determined by the direction of the gradient. The filter uses filter coefficients that are a function of the direction. Rather than storing coefficients for each of several directions, three filter coefficients are stored—one set for non-directional filter, one for one direction such as 45 degrees, and another for another direction such as 135 degrees. A blending of the filter coefficients is used.
Abstract translation: 数字图像的重新缩放或重建可以通过方向插值来实现，使得在垂直于梯度的方向（像素值的变化最小的方向）上进行插值。 通过在输出图像中的内插生成每个像素作为附近像素的加权平均值，其中在渐变方向上进行加权。 使用具有由梯度方向确定的椭圆频率响应的自适应滤波器来完成内插。 滤波器使用作为方向函数的滤波器系数。 不是存储几个方向中的每一个的系数，而是存储三个滤波器系数，一个用于无方向滤波器，一个针对一个方向，例如45度，另一个用于另一个方向，例如135度。 使用滤波器系数的混合。
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