公开(公告)号：US20040174441A1

公开(公告)日：2004-09-09

申请号：US10732186

申请日：2003-12-10

Applicant: STMicroelectronics S.r.I

Inventor： Alfio Castorina ,  Sebastiano Battiato ,  Mirko Guarnera ,  Filippo Vella

IPC: H04N009/73 ,  H04N005/235 ,  H04N005/217

CPC classification number: H04N5/23293 ,  H04N9/73

Abstract: A method of processing digital video signals produced by a sensor that are to be presented on a viewfinder, the method involving: a first pair of processing operations for scaling and color interpolation; and a second pair of processing operations for the formation of a color matrix and for white balancing. The operations of at least one, and preferably of both of the pairs of processing operations are executed in a single step. The operation of white balancing is moreover performed only for one frame out of K frame in the frame sequence. The preferential application is in the construction of viewfinders for videocameras and digital still cameras.

Abstract translation: 一种处理要呈现在取景器上的由传感器产生的数字视频信号的方法，所述方法涉及：用于缩放和颜色插值的第一对处理操作; 以及用于形成彩色矩阵和用​​于白平衡的第二对处理操作。 在一个步骤中执行至少一个，优选两个处理操作对的操作。 此外，在帧序列中仅对K帧中的一帧执行白平衡的操作。 优先应用是为视频摄像机和数码相机拍摄取景器。

公开(公告)号：US20040027488A1

公开(公告)日：2004-02-12

申请号：US10420532

申请日：2003-04-22

Applicant: STMicroelectronics S.r.I.

Inventor： Giuseppe Messina ,  Sebastiano Battiato ,  Massimo Mancuso

IPC: H04N009/74

CPC classification number: G06T3/4076

Abstract: A method for obtaining a high-resolution digital image from a plurality of starting images formed by pixel matrices acquired at a lower resolution includes combining the plurality of starting images to generate a provisional high-resolution image, and producing from the provisional high-resolution image a plurality of low-resolution images. Each low-resolution image corresponds to a respective starting image. At least a portion of the provisional high-resolution image is processed by modifying pixels thereof to reduce a difference between the plurality of starting images and the plurality of low-resolution images. The processing includes associating with the pixels of the provisional high-resolution image a respective uncertainty measure representing an uncertainty of the pixels, and leaving unmodified at least a subset of the pixels of the provisional high-resolution image having associated therewith a respective uncertainty measure smaller than a threshold.

Abstract translation: 从通过以较低分辨率获取的像素矩阵形成的多个起始图像中获得高分辨率数字图像的方法包括组合多个起始图像以生成临时高分辨率图像，并从临时高分辨率图像 多个低分辨率图像。 每个低分辨率图像对应于相应的起始图像。 临时高分辨率图像的至少一部分通过修改其像素来处理，以减少多个起始图像与多个低分辨率图像之间的差异。 该处理包括将临时高分辨率图像的像素与表示像素的不确定性的各自的不确定性度量相关联，并且使具有相关联的临时高分辨率图像的至少一个子集的相关不确定性度量留下未修改的至少一个子集 超过门槛。