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：EP1207686A1

公开(公告)日：2002-05-22

申请号：EP01300101.1

申请日：2001-01-05

Applicant: STMicroelectronics Limited

Inventor： Raynor, Jeffrey ,  Denyer, Peter ,  Hurwitz, Jonathan

IPC: H04N3/15

CPC classification number: H04N5/37452 ,  H04N5/353 ,  H04N5/3575 ,  H04N5/378

Abstract: An image plane consists of a number of pixels, two of which are shown. Each pixel comprises a photodiode and two transistors (M1, M2). Each pixel is connected by a signal bus (10) to a respective storage node located off the image plane. Each storage node comprises two capacitors (Csn_1, Csn_2) and associated switches (S2_1, S2_2). The transistor M2 applies a reset pulse to the pixel, and the transistor M1 connects the pixel to a given conductor of the signal bus (10) and thence to the storage node. The pixel transistors can be operated simultaneously, and the sensed values subsequently transferred from the storage nodes sequentially.

Abstract translation: 图像平面由多个像素组成，其中两个显示。 每个像素包括光电二极管和两个晶体管（M1，M2）。 每个像素通过信号总线（10）连接到位于图像平面外的各个存储节点。 每个存储节点包括两个电容器（Csn_1，Csn_2）和相关联的开关（S2_1，S2_2）。 晶体管M2向像素施加复位脉冲，晶体管M1将像素连接到信号总线（10）的给定导体，然后连接到存储节点。 像素晶体管可以同时操作，并且随后从存储节点顺序传送感测值。