Low-light video frame enhancement
    1.
    发明授权
    Low-light video frame enhancement 有权
    低光视频帧增强

    公开(公告)号:US08199222B2

    公开(公告)日:2012-06-12

    申请号:US12485316

    申请日:2009-06-16

    IPC分类号: H04N5/225

    摘要: A method of combining image data from multiple frames to enhance one or more parameters of video image quality includes acquiring a first image at a first exposure duration, as well as acquiring a second image at a second exposure duration shorter than the first exposure duration and at a time just before, just after or overlapping in time with acquiring the first image, such that the first and second images include approximately a same first scene. In this way, the second image is relatively sharp and under-exposed, while the first image is relatively well-exposed and less sharp than the second image. Brightness and/or color information are extracted from the first image and applied to the second image to generate an enhanced version of the second image.

    摘要翻译: 一种组合来自多个帧的图像数据以增强视频图像质量的一个或多个参数的方法包括以第一曝光持续时间获取第一图像,以及以比第一曝光持续时间短的第二曝光持续时间获取第二图像,并且 在获取第一图像之前,恰好在或之后重叠的时间,使得第一和第二图像包括大致相同的第一场景。 以这种方式,第二图像相对较锋利且曝光不足,而第一图像相对曝光较好,并且不如第二图像那样锐利。 从第一图像提取亮度和/或颜色信息并将其应用于第二图像以生成第二图像的增强版本。

    LOW-LIGHT VIDEO FRAME ENHANCEMENT
    2.
    发明申请
    LOW-LIGHT VIDEO FRAME ENHANCEMENT 有权
    低照度视频帧增强

    公开(公告)号:US20090303343A1

    公开(公告)日:2009-12-10

    申请号:US12485316

    申请日:2009-06-16

    IPC分类号: H04N5/228 G06K9/00

    摘要: A method of combining image data from multiple frames to enhance one or more parameters of video image quality includes acquiring a first image at a first exposure duration, as well as acquiring a second image at a second exposure duration shorter than the first exposure duration and at a time just before, just after or overlapping in time with acquiring the first image, such that the first and second images include approximately a same first scene. In this way, the second image is relatively sharp and under-exposed, while the first image is relatively well-exposed and less sharp than the second image. Brightness and/or color information are extracted from the first image and applied to the second image to generate an enhanced version of the second image.

    摘要翻译: 一种组合来自多个帧的图像数据以增强视频图像质量的一个或多个参数的方法包括以第一曝光持续时间获取第一图像,以及以比第一曝光持续时间短的第二曝光持续时间获取第二图像,并且 在获取第一图像之前,恰好在或之后重叠的时间,使得第一和第二图像包括大致相同的第一场景。 以这种方式,第二图像相对较锋利且曝光不足,而第一图像相对曝光较好,并且不如第二图像那样锐利。 从第一图像提取亮度和/或颜色信息并将其应用于第二图像以生成第二图像的增强版本。

    Image Acquisition Method and Apparatus
    3.
    发明申请
    Image Acquisition Method and Apparatus 有权
    图像采集方法与装置

    公开(公告)号:US20110115928A1

    公开(公告)日:2011-05-19

    申请号:US12907921

    申请日:2010-10-19

    IPC分类号: H04N5/228

    摘要: An image acquisition sensor of a digital image acquisition apparatus is coupled to imaging optics for acquiring a sequence of images. Images acquired by the sensor are stored. A motion detector causes the sensor to cease capture of an image when the degree of movement in acquiring the image exceeds a threshold. A controller selectively transfers acquired images for storage. A motion extractor determines motion parameters of a selected, stored image. An image re-constructor corrects the selected image with associated motion parameters. A selected plurality of images nominally of the same scene are merged and corrected by the image re-constructor to produce a high quality image of the scene.

    摘要翻译: 数字图像获取装置的图像采集传感器耦合到成像光学器件,用于获取图像序列。 存储由传感器获取的图像。 当获取图像的移动程度超过阈值时,运动检测器使得传感器停止图像的捕获。 控制器选择性地传送获取的图像以进行存储。 运动提取器确定所选存储的图像的运动参数。 图像重建器使用关联的运动参数校正所选择的图像。 通过图像重构器合并和校正所选择的多个相同场景的图像,以产生高质量的场景图像。

    Image acquisition method and apparatus
    4.
    发明授权
    Image acquisition method and apparatus 有权
    图像采集方法及装置

    公开(公告)号:US08520082B2

    公开(公告)日:2013-08-27

    申请号:US12907921

    申请日:2010-10-19

    IPC分类号: H04N5/228

    摘要: An image acquisition sensor of a digital image acquisition apparatus is coupled to imaging optics for acquiring a sequence of images. Images acquired by the sensor are stored. A motion detector causes the sensor to cease capture of an image when the degree of movement in acquiring the image exceeds a threshold. A controller selectively transfers acquired images for storage. A motion extractor determines motion parameters of a selected, stored image. An image re-constructor corrects the selected image with associated motion parameters. A selected plurality of images nominally of the same scene are merged and corrected by the image re-constructor to produce a high quality image of the scene.

    摘要翻译: 数字图像获取装置的图像采集传感器耦合到成像光学器件,用于获取图像序列。 存储由传感器获取的图像。 当获取图像的移动程度超过阈值时,运动检测器使得传感器停止图像的捕获。 控制器选择性地传送获取的图像以进行存储。 运动提取器确定所选存储的图像的运动参数。 图像重建器使用关联的运动参数校正所选择的图像。 通过图像重构器合并和校正所选择的多个相同场景的图像,以产生高质量的场景图像。

    Image acquisition method and apparatus
    5.
    发明授权
    Image acquisition method and apparatus 有权
    图像采集方法及装置

    公开(公告)号:US08169486B2

    公开(公告)日:2012-05-01

    申请号:US11753098

    申请日:2007-05-24

    IPC分类号: H04N5/228

    摘要: An image acquisition sensor of a digital image acquisition apparatus is coupled to imaging optics for acquiring a sequence of images. Images acquired by the sensor are stored. A motion detector causes the sensor to cease capture of an image when the degree of movement in acquiring the image exceeds a threshold. A controller selectively transfers acquired images for storage. A motion extractor determines motion parameters of a selected, stored image. An image re-constructor corrects the selected image with associated motion parameters. A selected plurality of images nominally of the same scene are merged and corrected by the image re-constructor to produce a high quality image of the scene.

    摘要翻译: 数字图像获取装置的图像采集传感器耦合到成像光学器件,用于获取图像序列。 存储由传感器获取的图像。 当获取图像的移动程度超过阈值时,运动检测器使得传感器停止图像的捕获。 控制器选择性地传送获取的图像以进行存储。 运动提取器确定所选存储的图像的运动参数。 图像重建器使用关联的运动参数校正所选择的图像。 通过图像重构器合并和校正所选择的多个相同场景的图像,以产生高质量的场景图像。

    Image Acquisition Method and Apparatus
    8.
    发明申请
    Image Acquisition Method and Apparatus 有权
    图像采集方法与装置

    公开(公告)号:US20070296833A1

    公开(公告)日:2007-12-27

    申请号:US11753098

    申请日:2007-05-24

    IPC分类号: H04N5/76 G06K9/00

    摘要: An image acquisition sensor of a digital image acquisition apparatus is coupled to imaging optics for acquiring a sequence of images. Images acquired by the sensor are stored. A motion detector causes the sensor to cease capture of an image when the degree of movement in acquiring the image exceeds a threshold. A controller selectively transfers acquired images for storage. A motion extractor determines motion parameters of a selected, stored image. An image re-constructor corrects the selected image with associated motion parameters. A selected plurality of images nominally of the same scene are merged and corrected by the image re-constructor to produce a high quality image of the scene.

    摘要翻译: 数字图像获取装置的图像采集传感器耦合到成像光学器件,用于获取图像序列。 存储由传感器获取的图像。 当获取图像的移动程度超过阈值时,运动检测器使得传感器停止图像的捕获。 控制器选择性地传送获取的图像以进行存储。 运动提取器确定所选存储的图像的运动参数。 图像重建器使用关联的运动参数校正所选择的图像。 通过图像重构器合并和校正所选择的多个相同场景的图像,以产生高质量的场景图像。

    Digital Camera with an Image Processor
    9.
    发明申请
    Digital Camera with an Image Processor 审中-公开
    具有图像处理器的数码相机

    公开(公告)号:US20130010138A1

    公开(公告)日:2013-01-10

    申请号:US13442721

    申请日:2012-04-09

    IPC分类号: H04N5/225 H04N5/232 H04N9/73

    摘要: A method operable in a digital image acquisition system having no photographic film is provided. The method comprises receiving a relatively low resolution image of a scene from an image stream, wherein the scene potentially includes one or more faces. At least one high quality face classifier is applied to the image to identify relatively large and medium sized face regions and at least one relaxed face classifier is applied to the image to identify relatively small sized face regions. A relatively high resolution image of nominally the same scene is received and at least one high quality face classifier is applied to the identified small sized face regions in the higher resolution version of said image.

    摘要翻译: 提供了一种在没有摄影胶片的数字图像采集系统中可操作的方法。 该方法包括从图像流接收场景的相对较低分辨率的图像,其中该场景潜在地包括一个或多个面。 至少一个高质量的脸部分类器被应用于图像以识别相对大的和中等大小的脸部区域,并且至少一个放松的面部分类器被应用于图像以识别相对小的脸部区域。 接收名义上相同的场景的相对高分辨率的图像,并且至少一个高质量的面部分类器应用于所述图像的较高分辨率版本中的所识别的小尺寸的脸部区域。

    Image processing method and apparatus
    10.
    发明授权
    Image processing method and apparatus 有权
    图像处理方法和装置

    公开(公告)号:US08417055B2

    公开(公告)日:2013-04-09

    申请号:US11856721

    申请日:2007-09-18

    IPC分类号: G06K9/40

    摘要: A method and apparatus for providing image processing. For one embodiment of the invention, an image processing apparatus is arranged to process a first relatively underexposed and sharp image of a scene, and a second relatively well exposed and blurred image, nominally of the same scene, the first and second images being derived from respective image sources. The apparatus provides a portion of the relatively first underexposed image as an input signal to an adaptive filter; and a corresponding portion of the second relatively well exposed image as a desired signal to the adaptive filter. The adaptive filter produces an output signal from the input signal and the desired signal; and an image generator constructs a first filtered image from the output signal, relatively less blurred than the second image.

    摘要翻译: 一种用于提供图像处理的方法和装置。 对于本发明的一个实施例,图像处理装置被布置成处理场景的第一相对不足曝光和清晰的图像,以及名义上为相同场景的第二相对良好曝光和模糊的图像,第一和第二图像从 各自的图像来源。 该装置将相对第一曝光不足的图像的一部分提供给自适应滤波器的输入信号; 以及第二相对良好曝光的图像的相应部分作为自适应滤波器的期望信号。 自适应滤波器产生来自输入信号和期望信号的输出信号; 并且图像发生器从输出信号构建第一滤波图像,其比第二图像相对较少地模糊。