公开(公告)号：EP1308888A1

公开(公告)日：2003-05-07

申请号：EP01830685.2

申请日：2001-11-06

Applicant: STMicroelectronics S.r.l. ,  STMicroelectronics Limited

Inventor： Guarnera, Mirko ,  Mancuso, Massimo ,  Hurwitz, Jonathan ,  Smith, Stewart ,  Findlater, Keith

IPC: G06T3/40

CPC classification number: G06T3/4015 ,  H04N9/045

Abstract: A method of processing digital images in devices for acquiring both individual images and image sequences, comprising the step of acquiring images in CFA (colour filter array) format and the step of reducing the resolution of the images acquired. In order to reduce computing time and energy consumption, the resolution-reduction step processes the images directly in CFA format.

Abstract translation: 一种在用于获取单个图像和图像序列的装置中处理数字图像的方法，包括以CFA（滤色器阵列）格式获取图像的步骤以及降低所获取图像的分辨率的步骤。 为了减少计算时间和能量消耗，分辨率降低步骤以CFA格式直接处理图像。

公开(公告)号：EP1335587A1

公开(公告)日：2003-08-13

申请号：EP02425061.5

申请日：2002-02-08

Applicant: STMicroelectronics S.r.l. ,  STMicroelectronics Limited

Inventor： Findlater, Keith ,  Henderson, Robert ,  Smith, Stewart ,  Hurwitz, Jonathan ,  Guarnera, Mirko

IPC: H04N3/15

CPC classification number: H04N5/374 ,  H04N5/3456 ,  H04N5/3458 ,  H04N9/045

Abstract: A digital camera for capturing and processing images of different resolutions is described together with a method for down-scaling a digital image. The method comprises the steps of forming an image of a real scene on an image sensor (4) comprising a plurality of pixels arranged in a matrix, addressing and reading pixels in the matrix to obtain analogue quantities related with the pixels luminance values, converting (5) the analogue quantities from the pixels matrix into digital values and processing (6-13) the digital values to obtain a data file representing the image of the real scene. To reduce computation time and power consumption the step of addressing and reading pixels includes the steps of selecting a group of pixels from the matrix, storing the analogue quantities related with the pixels of the selected group of pixels into analogue storing means (14) and averaging the stored analogue quantities to obtain an analogue quantity corresponding to an average pixel luminance value.

Abstract translation: 用于捕获和处理不同分辨率的图像的数字照相机与用于比例缩小的数字图像的方法一起描述。 该方法包括在（图像传感器（4），包括以矩阵排列的像素的复数，寻址和在基体中，以获得与所述像素的亮度值相关的类似物的量读出诸像素形成真实场景的图像的步骤，转换 5）来自像素的模拟量矩阵成数字值和处理（6-13）的数字值，以获得表示所述真实场景的图像的数据文件。 为了减少计算时间和功耗寻址和读出的像素的步骤包括选择一组像素的从矩阵，存储与像素的选择的组的像素的相关成模拟存储装置（14）和平均模拟量的步骤 所存储的模拟量，以获得对模拟量对应于平均像素亮度值。

公开(公告)号：EP1389876A1

公开(公告)日：2004-02-18

申请号：EP02255621.1

申请日：2002-08-12

Applicant: STMicroelectronics Limited

Inventor： Purcel, Matthew ,  Smith, Stewart ,  Hurwitz, Jonathan Ephriam David

IPC: H04N9/04

CPC classification number: H04N9/045

Abstract: A colour image sensor has an image array (10) in which a pixel of a given colour (R,G,B) is surrounded by pixels of other colours in a quasi-hexagonal manner. Colour values for a given pixel are derived from the actual value of that pixel's colour and average values of the neighbouring pixels of other colours. These values are derived by reading pixel values from three adjacent lines into three channels (12,14,16) each comprising delay lines (20,22,34,36) as temporary storage means, the averaging being performed by summing (24,28) the relevant data from the channels (12,14,16). Bayer-type patterns and four colour patterns of pixels are also described.

Abstract translation: 彩色图像传感器具有其中给定颜色（R，G，B）的像素以准六边形方式被其他颜色的像素包围的图像阵列（10）。 给定像素的颜色值从该像素的颜色的实际值和其他颜色的相邻像素的平均值导出。 通过将来自三个相邻行的像素值读取为包括作为临时存储装置的延迟线（20,22,34,36）的三个通道（12,14,16）而导出这些值，通过求和（24,28 ）来自渠道的相关数据（12,14,16）。 还描述了拜耳型图案和四种颜色图案的像素。