NOISE SUPPRESSION IN LOW LIGHT IMAGES
    1.
    发明申请
    NOISE SUPPRESSION IN LOW LIGHT IMAGES 有权
    低光图像中的噪声抑制

    公开(公告)号:US20120224789A1

    公开(公告)日:2012-09-06

    申请号:US13037366

    申请日:2011-03-01

    IPC分类号: G06K9/40

    CPC分类号: G06T5/002 G06T3/4015

    摘要: A low light noise reduction mechanism may perform denoising prior to demosaicing, and may also use parameters determined during the denoising operation for performing demosaicing. The denoising operation may attempt to find several patches of an image that are similar to a first patch, and use a weighted average based on similarity to determine an appropriate value for denoising a raw digital image. The same weighted average and similar patches may be used for demosaicing the same image after the denoising operation.

    摘要翻译: 低光噪声降低机构可以在去马赛克之前执行去噪,并且还可以使用在去噪操作期间确定的用于执行去马赛克的参数。 去噪操作可以尝试找到类似于第一贴片的图像的多个贴片,并且使用基于相似度的加权平均来确定用于去噪原始数字图像的适当值。 在去噪操作之后,可以使用相同的加权平均和相似的补丁来对相同的图像进行去马赛克。

    Noise suppression in low light images
    2.
    发明授权
    Noise suppression in low light images 有权
    低光图像中的噪声抑制

    公开(公告)号:US08417047B2

    公开(公告)日:2013-04-09

    申请号:US13037366

    申请日:2011-03-01

    IPC分类号: G06K9/40 H04N9/14

    CPC分类号: G06T5/002 G06T3/4015

    摘要: A low light noise reduction mechanism may perform denoising prior to demosaicing, and may also use parameters determined during the denoising operation for performing demosaicing. The denoising operation may attempt to find several patches of an image that are similar to a first patch, and use a weighted average based on similarity to determine an appropriate value for denoising a raw digital image. The same weighted average and similar patches may be used for demosaicing the same image after the denoising operation.

    摘要翻译: 低光噪声降低机构可以在去马赛克之前执行去噪,并且还可以使用在去噪操作期间确定的用于执行去马赛克的参数。 去噪操作可以尝试找到类似于第一贴片的图像的多个贴片,并且使用基于相似度的加权平均来确定用于去噪原始数字图像的适当值。 在去噪操作之后,可以使用相同的加权平均和相似的补丁来对相同的图像进行去马赛克。

    Video completion by motion field transfer
    3.
    发明授权
    Video completion by motion field transfer 有权
    视频完成通过运动场传输

    公开(公告)号:US08243805B2

    公开(公告)日:2012-08-14

    申请号:US11559861

    申请日:2006-11-14

    IPC分类号: H04N7/12

    摘要: Systems and methods for video completion by motion field transfer are described. In one aspect, a spatio-temporal target patch of an input video data sequence is filled in or replaced by motion field transfer from a spatio-temporal source patch of the input video data sequence. Color is propagated to corresponding portions of the spatio-temporal target patch by treating the transferred motion information as directed edges. These motion field transfer and color propagation operations result in a video completed spatio-temporal target patch. The systems and methods present the video data sequence, which now includes the video completed spatio-temporal target patch, to user for viewing.

    摘要翻译: 描述了通过运动场传输进行视频完成的系统和方法。 在一个方面,输入视频数据序列的时空目标贴片由输入视频数据序列的时空源片段填充或由运动场传输代替。 通过将转移的运动信息作为有向边缘进行处理,将颜色传播到时空目标贴片的相应部分。 这些运动场传输和颜色传播操作导致视频完成时空目标补丁。 系统和方法呈现视频数据序列,其现在包括视频完成的时空目标补丁,供用户观看。

    Video Completion By Motion Field Transfer
    4.
    发明申请
    Video Completion By Motion Field Transfer 有权
    视频完成通过运动场传输

    公开(公告)号:US20080112642A1

    公开(公告)日:2008-05-15

    申请号:US11559861

    申请日:2006-11-14

    IPC分类号: G06K9/40

    摘要: Systems and methods for video completion by motion field transfer are described. In one aspect, a spatio-temporal target patch of an input video data sequence is filled in or replaced by motion field transfer from a spatio-temporal source patch of the input video data sequence. Color is propagated to corresponding portions of the spatio-temporal target patch by treating the transferred motion information as directed edges These motion field transfer and color propagation operations result in a video completed spatio-temporal target patch. The systems and methods present the video data sequence, which now includes the video completed spatio-temporal target patch, to user for viewing.

    摘要翻译: 描述了通过运动场传输进行视频完成的系统和方法。 在一个方面,输入视频数据序列的时空目标贴片由输入视频数据序列的时空源片段填充或由运动场传输代替。 通过将转移的运动信息作为有向边缘进行处理,将颜色传播到时空目标贴片的相应部分。这些运动场转移和颜色传播操作导致视频完成的时空目标贴片。 系统和方法呈现视频数据序列,其现在包括视频完成的时空目标补丁,供用户观看。

    Space-time video montage
    5.
    发明授权
    Space-time video montage 有权
    时空视频蒙太奇

    公开(公告)号:US08000533B2

    公开(公告)日:2011-08-16

    申请号:US11559852

    申请日:2006-11-14

    IPC分类号: G06K9/46

    摘要: Systems and methods for space-time video montage are described. In one aspect, one or more arbitrary space-time volumes representing informative video portion(s) of at least one input video data sequence are identified. A video summary representing a montage of the at least one input video data sequence is generated for presentation to user from the one or more arbitrary space-time volumes.

    摘要翻译: 描述了时空视频蒙太奇的系统和方法。 在一个方面中,识别表示至少一个输入视频数据序列的信息性视频部分的一个或多个任意时空容量。 生成表示至少一个输入视频数据序列的蒙太奇的视频摘要,用于从一个或多个任意时空卷呈现给用户。

    RADIOMETRIC CALIBRATION FROM NOISE DISTRIBUTIONS
    6.
    发明申请
    RADIOMETRIC CALIBRATION FROM NOISE DISTRIBUTIONS 有权
    噪声分布的放射性校正

    公开(公告)号:US20090268062A1

    公开(公告)日:2009-10-29

    申请号:US12110357

    申请日:2008-04-28

    IPC分类号: H04N5/217

    摘要: Technologies that enable correcting for the non-linear relationship between scene irradiance and digital pixel intensity values of an image of the scene produced by a camera. Imaging noise is used as a signal from which a corrective function is derived. Noise distributions from the image are evaluated to determine the radiometric response function of the camera, from which an inverse response function is computed and used for calibration.

    摘要翻译: 能够校正场景辐照度与由摄像机产生的场景的图像的数字像素强度值之间的非线性关系的技术。 成像噪声被用作导出校正功能的信号。 评估来自图像的噪声分布以确定照相机的辐射响应函数,从其计算反应响应函数并用于校准。

    Decorating surfaces with textures

    公开(公告)号:US20060170695A1

    公开(公告)日:2006-08-03

    申请号:US11045868

    申请日:2005-01-28

    IPC分类号: G09G5/00

    CPC分类号: G06T15/04 G06T17/20

    摘要: Surfaces can be decorated with texture tiling and/or texture painting using one or more sample textures, such as BTFs. In a described implementation of texture tiling, a patch-based BTF synthesis algorithm is utilized. In an example embodiment, a mesh of a target surface is re-sampled to produce a dense mesh such that there is a one-to-one correspondence between vertices of the dense mesh and pixels of an image. Patch matching is then employed with a working image that corresponds to a working patch. In an example embodiment, the patch matching is effectuated using translations and rotations of the sample texture. In a described implementation of texture painting, irregular feature(s) of a sample texture are synthesized onto a target surface. In an example embodiment, user-specified constraints as to a desired foreground feature of a sample texture and an intended foreground region of a targeted surface are factored into a graphcut operation.

    Radiometric calibration using temporal irradiance mixtures
    9.
    发明授权
    Radiometric calibration using temporal irradiance mixtures 有权
    使用时间辐照混合物进行辐射校准

    公开(公告)号:US08619153B2

    公开(公告)日:2013-12-31

    申请号:US13342316

    申请日:2012-01-03

    IPC分类号: H04N5/228 H04N17/02

    CPC分类号: H04N17/002 H04N5/2351

    摘要: A method of calibrating a brightness value measured by a camera with an amount of light received by the camera includes creating a series of measurements, wherein for each measurement the amount of light received at an image plane in the camera is controlled to be a known ratio of two opposed irradiance values: a high irradiance value and a low irradiance value. Each ratio is correlated with the brightness value measured by the camera. A function is obtained describing the correlation.

    摘要翻译: 校正由照相机测量的具有由照相机接收的光量的亮度值的方法包括创建一系列测量,其中对于每次测量,将照相机中在图像平面处接收的光量控制为已知比例 的两个相对的辐照度值:高辐照度值和低辐照度值。 每个比例与相机测量的亮度值相关。 获得描述相关性的函数。

    Determining Intensity Similarity in Low-Light Conditions Using the Poisson-Quantization Noise Model
    10.
    发明申请
    Determining Intensity Similarity in Low-Light Conditions Using the Poisson-Quantization Noise Model 审中-公开
    使用泊松量化噪声模型确定低光条件下的强度相似性

    公开(公告)号:US20100303367A1

    公开(公告)日:2010-12-02

    申请号:US12772690

    申请日:2010-05-03

    IPC分类号: G06K9/68

    CPC分类号: G06K9/38 G06K9/40

    摘要: A Poisson-quantization noise model for modeling noise in low-light conditions is described. In one aspect, image information is received. A Poisson-quantization noise model is then generated from a Poisson noise model and a quantization noise model. Poisson-quantization noise is then estimated in the image information using the Poisson-quantization noise model.

    摘要翻译: 描述了用于在低光条件下建模噪声的泊松量化噪声模型。 一方面,接收图像信息。 然后从泊松噪声模型和量化噪声模型生成泊松量化噪声模型。 然后使用泊松量化噪声模型在图像信息中估计泊松量化噪声。