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：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：EP1622393B1

公开(公告)日：2010-03-31

申请号：EP04425587.5

申请日：2004-07-30

Applicant: STMicroelectronics S.r.l.

Inventor： Spampinato, Giuseppe ,  Messina, Giuseppe ,  Bruna, Arcangelo Ranieri ,  Guarnera, Mirko

IPC: H04N9/04 ,  G06T3/40

CPC classification number: G06T3/4015 ,  H04N9/045 ,  H04N2209/046

公开(公告)号：EP1622393A1

公开(公告)日：2006-02-01

申请号：EP04425587.5

申请日：2004-07-30

Applicant: STMicroelectronics S.r.l.

Inventor： Spampinato, Giuseppe ,  Messina, Giuseppe ,  Bruna, Arcangelo Ranieri ,  Guarnera, Mirko

IPC: H04N9/04 ,  G06T3/40

CPC classification number: G06T3/4015 ,  H04N9/045 ,  H04N2209/046

Abstract: A fast method of color interpolation of pixels of an image acquired by a color filtered digital sensor uses a very simple cost function that nevertheless produce interpolated images of good quality. The cost function is computationally simpler because it does not require the calculation of powers and square roots.
An efficient triangulation algorithm that may be executed in far less time than prior art triangulation processes, while practically ensuring the same performances. The peculiarity of this triangulation algorithm consists in that on average it requires only two iteration steps, while the most accurate prior triangulation algorithm is completed only after four iteration steps.
Optionally, the interpolation process may be followed by an anti-aliasing processing that effectively removes color artifacts that may be created during the interpolation process.

Abstract translation: 由彩色滤波数字传感器获取的图像的像素的彩色插值的快速方法使用非常简单的成本函数，其仍然产生良好质量的内插图像。 成本函数在计算上更简单，因为它不需要功率和平方根的计算。 一种有效的三角测量算法，可以在比现有技术的三角测量过程更少的时间内执行，同时实际确保相同的性能。 这种三角测量算法的特点在于，平均来说，它只需要两个迭代步骤，而最精确的先验三角测量算法仅在四个迭代步骤之后完成。 可选地，内插处理之后可以是抗锯齿处理，其有效地消除可能在插值处理期间产生的颜色伪像。

公开(公告)号：EP1289308B1

公开(公告)日：2006-04-26

申请号：EP01830552.4

申请日：2001-08-29

Applicant: STMicroelectronics S.r.l.

Inventor： Guarnera, Mirko ,  Mancuso, Massimo ,  Puliafito, Antonio ,  Arena, Antonino ,  Villari, Massimo

IPC: H04N9/04

CPC classification number: H04N9/045

公开(公告)号：EP1486916A1

公开(公告)日：2004-12-15

申请号：EP03425388.0

申请日：2003-06-13

Applicant: STMicroelectronics S.r.l.

Inventor： Battiato, Sebastiano ,  Castorina, Alfio ,  Guarnera, Mirko ,  Vivirito, Paolo

IPC: G06T5/00 ,  G06T5/20 ,  G06T9/00

CPC classification number: G06T5/004 ,  G06T5/20 ,  G06T9/00

Abstract: A method (Q_Impr) for processing a first digital image, comprising an operation (A_Sharp) of increasing the sharpness of said digital image.
The method is characterized in that the operation of increasing the sharpness (A_Sharp) is of the adaptive type and includes an operation of associating (TD_Ev) with pixel (p i (x,y)) of the starting image respective local homogeneity measures (k(x,y)), and an operation of providing pixel (p 0 (x,y)) of a second digital image by modifying respective pixels (p i (x,y)) of the first digital image on the basis of said respective local homogeneity measures (k(x,y)).

Abstract translation: 一种用于处理第一数字图像的方法（Q_Impr），包括增加所述数字图像的锐度的操作（A_Sharp）。 该方法的特征在于，增加锐度（A_Sharp）的操作是自适应类型的操作，并且包括将起始图像相应的局部均匀性（TD_Ev）与像素（pi（x，y））相关联的操作 （k（x，y））以及通过基于第一数字图像修改第一数字图像的各个像素（pi（x，y））来提供第二数字图像的像素（p0（x，y））的操作 表示各自的本地均匀性度量（k（x，y））。

公开(公告)号：EP1289308A1

公开(公告)日：2003-03-05

申请号：EP01830552.4

申请日：2001-08-29

Applicant: STMicroelectronics S.r.l.

Inventor： Guarnera, Mirko ,  Mancuso, Massimo ,  Puliafito, Antonio ,  Arena, Antonino ,  Villari, Massimo

IPC: H04N9/04

CPC classification number: H04N9/045

Abstract: Presented is a digital camera, comprising:

a sensor (205) for sensing an image and producing a first signal;
a Bayer pattern producer (210) coupled to said sensor (205) and structured to produce a Bayer pattern from said first signal;
a splitter (212) structured to split said Bayer pattern into separate color channels;
a compressor (220) for compressing said color channels into a compressed image;
an output interface (226) structured to transmit said compressed image on a communication channel; and
a color interpreter structured to perform a modification on exactly one of said color channels from said splitter (212) prior to sending said color channels to said compressor (220).

Additionally described is a network that operates with said digital camera to perform certain functions, as directed by a user of said digital camera.

Abstract translation: 提供了一种数码相机，包括：用于感测图像并产生第一信号的传感器（205）; 耦合到所述传感器（205）并被构造为从所述第一信号产生拜耳图案的拜耳图案生成器（210） 分离器（212），其被构造成将所述拜耳图案分割成单独的颜色通道; 压缩机（220），用于将所述彩色通道压缩成压缩图像; 输出接口（226），其被构造为在通信信道上发送所述压缩图像; 以及颜色解释器，被构造为在将所述颜色通道发送到所述压缩器（220）之前，对来自所述分离器（212）的所述颜色通道的正好一个进行修改。 另外描述的是与所述数码相机一起操作以按照所述数字照相机的用户的指示执行某些功能的网络。