公开(公告)号：US08436909B2

公开(公告)日：2013-05-07

申请号：US12288626

申请日：2008-10-21

Applicant: Marco Farina ,  Mirko Ignazio Guarnera ,  Massimo Mancuso ,  Giuseppe Messina ,  Alessandro Capra

Inventor： Marco Farina ,  Mirko Ignazio Guarnera ,  Massimo Mancuso ,  Giuseppe Messina ,  Alessandro Capra

IPC: H04N5/228

CPC classification number: H04N5/23238 ,  H04N9/045 ,  H04N9/09

Abstract: In one embodiment, a light sensor includes four cell arrays, one for each color of the Bayer pattern, and four lenses each focusing the light coming from the scene to be captured on a respective cell array. The lenses are oriented such that at least a second green image, commonly provided by the fourth cell array, is both horizontally and vertically shifted (spaced) apart by half a pixel pitch from a first (reference) green image. In a second embodiment, the four lenses are oriented such that the red and blue images are respectively shifted (spaced) apart by half a pixel pitch from the first or reference green image, one horizontally and the other vertically, and the second green image is shifted (spaced) apart by half a pixel pitch from the reference green image both horizontally and vertically.

公开(公告)号：US20100097491A1

公开(公告)日：2010-04-22

申请号：US12288626

申请日：2008-10-21

Applicant: Marco Farina ,  Mirko Ignazio Guarnera ,  Massimo Mancuso ,  Giuseppe Messina ,  Alessandro Capra

Inventor： Marco Farina ,  Mirko Ignazio Guarnera ,  Massimo Mancuso ,  Giuseppe Messina ,  Alessandro Capra

IPC: H04N9/73

CPC classification number: H04N5/23238 ,  H04N9/045 ,  H04N9/09

Abstract: In one embodiment, a light sensor includes four cell arrays, one for each color of the Bayer pattern, and four lenses each focusing the light coming from the scene to be captured on a respective cell array. The lenses are oriented such that at least a second green image, commonly provided by the fourth cell array, is both horizontally and vertically shifted (spaced) apart by half a pixel pitch from a first (reference) green image. In a second embodiment, the four lenses are oriented such that the red and blue images are respectively shifted (spaced) apart by half a pixel pitch from the first or reference green image, one horizontally and the other vertically, and the second green image is shifted (spaced) apart by half a pixel pitch from the reference green image both horizontally and vertically.

Abstract translation: 在一个实施例中，光传感器包括四个单元阵列，一个用于拜耳图案的每种颜色，四个透镜将来自场景的光聚焦在相应的单元阵列上。 透镜被取向为使得通常由第四单元阵列提供的至少第二绿色图像与第一（参考）绿色图像水平和垂直地移位（间隔开）半个像素间距。 在第二实施例中，四个透镜被定向成使得红色和蓝色图像分别从第一或参考绿色图像分开移位（间隔开）半个像素间距，一个水平方向和另一个垂直方向偏移，并且第二绿色图像是 在参考绿色图像水平和垂直方向上移动（间隔开）半个像素间距。

公开(公告)号：US20090010539A1

公开(公告)日：2009-01-08

申请号：US12217309

申请日：2008-07-02

Applicant: Mirko Ignazio Guarnera ,  Valeria Tomaselli ,  Giuseppe Messina

Inventor： Mirko Ignazio Guarnera ,  Valeria Tomaselli ,  Giuseppe Messina

IPC: G06K9/44

CPC classification number: G06T3/403 ,  G06T3/4015

Abstract: A method calculates statistical parameters in function of stochastic momentums of the pixel intensities of a same primary color or complementary hue of a first working window (2k+1)×(2k+1), and of at least a second working window of smaller size, both centered on the pixel to be filtered and in choosing, as a function of the values of these statistical parameters, for each pixel of the color image to be filtered, the most appropriate filtering algorithm for enhancing as much as possible the contour sharpness and reducing noise and artifacts.

Abstract translation: 一种方法根据第一工作窗口（2k + 1）x（2k + 1）的相同原色或互补色调的像素强度的随机动量的函数和至少具有较小尺寸的第二工作窗口来计算统计参数 两者以要滤波的像素为中心，并且根据这些统计参数的值，对于要滤波的彩色图像的每个像素选择最适合的滤波算法，以尽可能地增强轮廓的锐度和 减少噪音和瑕疵。

公开(公告)号：US07305123B2

公开(公告)日：2007-12-04

申请号：US11243212

申请日：2005-10-04

Applicant: Giuseppe Messina ,  Mirko Ignazio Guarnera ,  Valeria Tomaselli ,  Arcangelo Ranieri Bruna ,  Giuseppe Spampinato ,  Alfio Castorina

Inventor： Giuseppe Messina ,  Mirko Ignazio Guarnera ,  Valeria Tomaselli ,  Arcangelo Ranieri Bruna ,  Giuseppe Spampinato ,  Alfio Castorina

IPC: G06K9/00

CPC classification number: G06T3/4015

Abstract: Subdivision per basic color channels of grey level data generated by a color sensor is no longer required according to a novel color interpolation method of an image acquired by a digital color sensor generating grey levels for each image pixel as a function of the filter applied to the sensor by interpolating the values of missing colors of each image pixel for generating triplets or pairs of values of primary colors or complementary base hues for each image pixel. The method may include calculating spatial variation gradients of primary colors or complementary base hues for each image pixel and storing the information of directional variation of primary color or complementary base hue in look-up tables pertaining to each pixel. The method may further include interpolating color values of each image pixel considering the directional variation information of the respective values of primary colors or complementary hues stored in the respective look-up tables of the pixel for generating the multiple distinct values for each image pixel.

Abstract translation: 根据由数字颜色传感器获取的图像的新颖的颜色插值方法，由颜色传感器生成的灰度级数据的每个基本色彩通道的细分作为对每个图像像素生成灰度的函数，作为应用于 通过内插每个图像像素的缺失颜色的值来生成每个图像像素的三元组或原色值或互补基色调的值对。 该方法可以包括计算每个图像像素的原色或互补基色调的空间变化梯度，并将原色或互补基色调的方向变化的信息存储在与每个像素相关的查找表中。 该方法还可以包括考虑存储在像素的各个查找表中的原色或互补色调的各个值的方向变化信息来考虑每个图像像素的颜色值，以生成每个图像像素的多个不同值。

公开(公告)号：US07791648B2

公开(公告)日：2010-09-07

申请号：US11252376

申请日：2005-10-18

Applicant: Mirko Ignazio Guarnera ,  Giuseppe Messina ,  Valeria Tomaselli

Inventor： Mirko Ignazio Guarnera ,  Giuseppe Messina ,  Valeria Tomaselli

IPC: H04N9/73

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

Abstract: Color image signals, as derived, e.g., by interpolating the output from a color filter array are arranged in pixels, each pixel having associated detected color information for a first color as well as undetected filled-in color information for at least a second and a third color. The images are thus exposed to false color and zipper effect artifacts, and are subject to processing preferably including the steps of: checking the images for the presence of zipper effect artifacts, and i) if the checking reveals the presence of zipper effect artifacts, applying a zipper effect removal process to the image signals; ii) if the checking fails to reveal the presence of zipper effect artifacts, applying a false color removal process to the image signals. False color and zipper effect artifacts are thus preferably both reduced by adaptively using the zipper effect removal process and the false color removal process.

Abstract translation: 例如，通过内插来自滤色器阵列的输出的彩色图像信号以像素排列，每个像素具有用于第一颜色的相关联的检测到的颜色信息以及未检测到的至少第二和第二颜色的填充颜色信息 第三色。 因此，图像暴露于虚假的颜色和拉链效果伪像，并且经受处理优选包括以下步骤：检查图像中是否存在拉链效果伪像，以及i）如果检查显示出拉链效应伪像的存在，应用 拉链效果去除图像信号的过程; ii）如果检查不能揭示拉链效应伪像的存在，则对图像信号应用假色去除处理。 因此，优选通过自适应地使用拉链效果去除处理和假颜色去除处理来减少假色和拉链效果伪影。

公开(公告)号：US07689060B2

公开(公告)日：2010-03-30

申请号：US11259937

申请日：2005-10-27

Applicant: Giuseppe Messina ,  Mirko Ignazio Guarnera ,  Agostino Costanzo ,  Sebastiano Battiato ,  Giovanni Gallo ,  Salvatore Nicotra

Inventor： Giuseppe Messina ,  Mirko Ignazio Guarnera ,  Agostino Costanzo ,  Sebastiano Battiato ,  Giovanni Gallo ,  Salvatore Nicotra

IPC: G06K9/36 ,  G06K9/38 ,  G06K9/46

CPC classification number: G06K9/481

Abstract: A method for transforming a matrix representation of pixels of an image into a vector representation of the image involves partition of the image into contiguous homogeneous regions by applying a watershed type morphologic algorithm to the matrix representation of pixels and identifying the contours of the contiguous homogeneous regions by applying a vector code contouring algorithm of the chain-code type to every region. By selecting quantization level of the gradient, improved image quality, dimensions and noise are achieved.

Abstract translation: 将图像的像素的矩阵表示变换为图像的向量表示的方法涉及通过将分水岭类型形态学算法应用于像素的矩阵表示并识别连续均匀区域的轮廓来将图像划分为连续的同质区域 通过将链码类型的向量代码轮廓算法应用于每个区域。 通过选择梯度的量化级别，实现了改进的图像质量，尺寸和噪声。

公开(公告)号：US08144977B2

公开(公告)日：2012-03-27

申请号：US12217309

申请日：2008-07-02

Applicant: Mirko Ignazio Guarnera ,  Valeria Tomaselli ,  Giuseppe Messina

Inventor： Mirko Ignazio Guarnera ,  Valeria Tomaselli ,  Giuseppe Messina

IPC: G06K9/00

CPC classification number: G06T3/403 ,  G06T3/4015

Abstract: A method calculates statistical parameters in function of stochastic momentums of the pixel intensities of a same primary color or complementary hue of a first working window (2k+1)×(2k+1), and of at least a second working window of smaller size, both centered on the pixel to be filtered and in choosing, as a function of the values of these statistical parameters, for each pixel of the color image to be filtered, the most appropriate filtering algorithm for enhancing as much as possible the contour sharpness and reducing noise and artifacts.

Abstract translation: 一种方法计算与第一工作窗口（2k + 1）×（2k + 1）相同的原色或互补色调的像素强度的随机动量的功能的统计参数，以及至少具有较小尺寸的第二工作窗口 两者以要滤波的像素为中心，并且根据这些统计参数的值，对于要滤波的彩色图像的每个像素选择最适合的滤波算法，以尽可能地增强轮廓的锐度和 减少噪音和瑕疵。

公开(公告)号：US07567720B2

公开(公告)日：2009-07-28

申请号：US11271499

申请日：2005-11-10

Applicant: Giuseppe Messina ,  Mirko Ignazio Guarnera ,  Gianluca Barbera ,  Sebastiano Battiato ,  Giovanni Gallo

Inventor： Giuseppe Messina ,  Mirko Ignazio Guarnera ,  Gianluca Barbera ,  Sebastiano Battiato ,  Giovanni Gallo

IPC: G06K9/36 ,  G06K9/46

CPC classification number: G06T11/60 ,  G06T7/12 ,  G06T7/187 ,  G06T2207/10024

Abstract: A raster to vector conversion method of an initial digital image including a pixel matrix, includes generating a digital image divided into polygons by dividing the initial digital image into a plurality of base triangles and defining similarity criteria depending on at least one parameter. The conversion method also includes an iterative operation to process the digital image divided into polygons, selecting pairs of polygons adjacent to each other and to satisfy the similarity criteria and merging together the selected polygons.

Abstract translation: 包括像素矩阵的初始数字图像的光栅到矢量转换方法包括通过将初始数字图像划分成多个基本三角形并根据至少一个参数定义相似性标准来生成被分成多边形的数字图像。 转换方法还包括迭代操作，以处理分成多边形的数字图像，选择彼此相邻的多边形对，并且满足相似性标准并将所选择的多边形合并在一起。