公开(公告)号：US20040135908A1

公开(公告)日：2004-07-15

申请号：US10696396

申请日：2003-10-29

Applicant: STMicroelectronics S.r.I.

Inventor： Francesco Pappalardo ,  Alessandro Capra ,  Massimo Mancuso ,  Herve Broquin ,  Paolo Antonino Fodera ,  Elena Salurso

IPC: H04N005/335

CPC classification number: H04N1/648

Abstract: Digital video signals, such as the signals generated by an image sensor in a Bayer format, are converted into an encoded format. In the Bayer format, the pixels of each line are alternately coded with two colors, and then converted into the encoded format. In the encoded format, the pixels of the digital video signals are reordered into sets of adjacent pixels, such that the sets group pixels coded with the same color. The encoded signal data results in a reduced switching activity when transmitted over a bus.

Abstract translation: 诸如由拜耳格式的图像传感器产生的信号的数字视频信号被转换成编码格式。 在拜耳格式中，每行的像素被交替地用两种颜色编码，然后被转换为编码格式。 在编码格式中，将数字视频信号的像素重新排列成相邻像素的集合，使得组合像素以相同颜色编码。 编码的信号数据在总线上传输时导致切换活动降低。

公开(公告)号：US20040027454A1

公开(公告)日：2004-02-12

申请号：US10462090

申请日：2003-06-13

Applicant: STMicroelectronics S.r.I.

Inventor： Filippo Vella ,  Massimo Mancuso

IPC: H04N007/18

CPC classification number: G06T7/215

Abstract: A method of estimating a global motion vector representative of the motion of a first digital image with respect to a second digital image, the first and the second image forming part of a sequence of images and being made up of, respectively, a first and a second pixel matrix. The method estimates the global motion vector on the basis of the estimate of at least one motion vector of at least one region of the first image representative of the motion of the at least one region from the first image to the second image and comprising phases of: subdividing the at least one region of the first image into a plurality of pixel blocks, assigning to each block of the plurality a respective weighting coefficient calculated on the basis of a respective inhomogeneity measure, and estimating the at least one motion vector of said at least one region on the basis of the weighting coefficients assigned to each block of the at least one region.

Abstract translation: 一种估计表示第一数字图像相对于第二数字图像的运动的全局运动矢量的方法，所述第一和第二图像形成图像序列的一部分，并且分别由第一和第二数字图像构成 第二像素矩阵。 该方法基于对从第一图像到第二图像的至少一个区域的运动的第一图像的至少一个区域的至少一个运动矢量的估计来估计全局运动矢量，并且包括 将所述第一图像的至少一个区域细分为多个像素块，向所述多个像素块中的至少一个运动矢量分配所述多个像素块中的所述至少一个运动矢量， 基于分配给所述至少一个区域的每个块的加权系数的至少一个区域。

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。