专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20170243041A1 System and method of embedding a two dimensional code with concealed secure message 审中-公开
公开(公告)号：US20170243041A1
公开(公告)日：2017-08-24
申请号：US15168677
申请日：2016-05-31
申请人： Gonzalo R. Arce , Gonzalo Garateguy , Sean Xiaolu Wang
发明人： Gonzalo R. Arce , Gonzalo Garateguy , Sean Xiaolu Wang
IPC分类号： G06K7/14 , G06K7/10 , G06K19/06
CPC分类号： G06K7/1099 , G06K19/06037 , G06K19/06056
摘要： The present invention embodies a technique to embed a graphic representation and/or a concealed message such as but not limited to two dimensional codes such as quick response (QR) code matrices, fingerprints, coded fingerprint representations, iris imagery, iris coded representation, biometric hashes, palm print or portraits into a QR matrix code. In the case where biometric data such as finger print representation, iris coded representation or biometric hashes are encoded into the embedding, suitable binary representation of those patterns are generated before encoding. These concealed messages can be further encrypted using any cryptographic method such as public or private key or other suitable encrypting mechanisms adapted to the concealed message. For an implementation of the present invention in which a graphic representation is embedded into the code, the embedding process is based on an optimization method by which the color or luminance of the embedding is modified so as to minimize the visual distortion with respect to a reference image while maintaining the probability of decoding error of the standard and concealed code under a predetermined limit.

2. 发明授权

US10152663B2 Method to store a secret QR code into a colored secure QR code 有权
公开(公告)号：US10152663B2
公开(公告)日：2018-12-11
申请号：US15259460
申请日：2016-09-08
申请人： Gonzalo R. Arce , Gonzalo Garateguy , Sean Xiaolu Wang , Daniel L. Lau
发明人： Gonzalo R. Arce , Gonzalo Garateguy , Sean Xiaolu Wang , Daniel L. Lau
IPC分类号： G06K7/10 , G06K19/06
摘要： The present invention embodies a technique, referred to as Secure QR Codes, which not only provides aesthetically enhanced QR codes but also allows for security. It can embed a standard black and white QR code, referred to as a public QR code, and a secret QR code, both into a secure QR code. The secure QR code produced is composed of colored cells. The public black and white QR code must first be, either aesthetically enhanced into an enhanced colored QR code, or transformed into a colored QR code with cells of uniform color obtained by transforming each of the black and white cells of the public QR code into cells that takes a color from a subset of possible colors, such that the luminance of each colored cell approximates accurately the black or white luminance values of the public QR code.

3. 发明授权

US10832110B2 Method to store a secret QR code into a colored secure QR code 有权
公开(公告)号：US10832110B2
公开(公告)日：2020-11-10
申请号：US16178745
申请日：2018-11-02
申请人： Gonzalo R. Arce , Gonzalo Garateguy , Sean Xiaolu Wang , Daniel L. Lau
发明人： Gonzalo R. Arce , Gonzalo Garateguy , Sean Xiaolu Wang , Daniel L. Lau
IPC分类号： G06K19/06
摘要： The present invention embodies a technique, referred to as Secure QR Codes, which not only provides aesthetically enhanced QR codes but also allows for security. It can embed a standard black and white QR code, referred to as a public QR code, and a secret QR code, both into a secure QR code. The secure QR code produced is composed of colored cells. The public black and white QR code must first be, either aesthetically enhanced into an enhanced colored QR code, or transformed into a colored QR code with cells of uniform color obtained by transforming each of the black and white cells of the public QR code into cells that takes a color from a subset of possible colors, such that the luminance of each colored cell approximates accurately the black or white luminance values of the public QR code.

4. 发明申请

US20170076127A1 Method to Store a Secret QR Code into a Colored Secure QR Code 审中-公开
标题翻译：将秘密QR码存储到彩色安全QR码的方法
公开(公告)号：US20170076127A1
公开(公告)日：2017-03-16
申请号：US15259460
申请日：2016-09-08
申请人： Gonzalo R. Arce , Gonzalo Garateguy , Sean Xiaolu Wang , Daniel L. Lau
发明人： Gonzalo R. Arce , Gonzalo Garateguy , Sean Xiaolu Wang , Daniel L. Lau
IPC分类号： G06K7/14 , G06K1/12 , G06K19/06
CPC分类号： G06K19/06056
摘要： The present invention embodies a technique, referred to as Secure QR Codes, which not only provides aesthetically enhanced QR codes but also allows for security. It can embed a standard black and white QR code, referred to as a public QR code, and a secret QR code, both into a secure QR code. The secure QR code produced is composed of colored cells. The public black and white QR code must first be, either aesthetically enhanced into an enhanced colored QR code, or transformed into a colored QR code with cells of uniform color obtained by transforming each of the black and white cells of the public QR code into cells that takes a color from a subset of possible colors, such that the luminance of each colored cell approximates accurately the black or white luminance values of the public QR code.
摘要翻译：本发明体现了一种称为安全QR码的技术，其不仅提供美观增强的QR码，而且还允许安全性。它可以嵌入标准的黑白QR码，被称为公众QR码和秘密QR码，两者都可以嵌入到安全的QR码中。产生的安全QR码由彩色细胞组成。公众黑白QR码必须首先在美学上增强为增强的彩色QR码，或者通过将公开QR码的每个黑白细胞转换成细胞而获得的均匀颜色的细胞变换成彩色QR码其从可能颜色的子集中获取颜色，使得每个有色单元的亮度准确地近似公开QR码的黑色或白色亮度值。

5. 发明申请

US20190087699A1 Method to Store a Secret QR Code into a Colored Secure QR Code 审中-公开
公开(公告)号：US20190087699A1
公开(公告)日：2019-03-21
申请号：US16178745
申请日：2018-11-02
申请人： Gonzalo R. Arce , Gonzalo Garateguy , Sean Xiaolu Wang , Daniel L. Lau
发明人： Gonzalo R. Arce , Gonzalo Garateguy , Sean Xiaolu Wang , Daniel L. Lau
IPC分类号： G06K19/06
CPC分类号： G06K19/06056
摘要： The present invention embodies a technique, referred to as Secure QR Codes, which not only provides aesthetically enhanced QR codes but also allows for security. It can embed a standard black and white QR code, referred to as a public QR code, and a secret QR code, both into a secure QR code. The secure QR code produced is composed of colored cells. The public black and white QR code must first be, either aesthetically enhanced into an enhanced colored QR code, or transformed into a colored QR code with cells of uniform color obtained by transforming each of the black and white cells of the public QR code into cells that takes a color from a subset of possible colors, such that the luminance of each colored cell approximates accurately the black or white luminance values of the public QR code.

6. 发明授权

US10089508B2 System and method of embedding a two dimensional code with concealed secure message 有权
公开(公告)号：US10089508B2
公开(公告)日：2018-10-02
申请号：US15168677
申请日：2016-05-31
申请人： Gonzalo R. Arce , Gonzalo Garateguy , Sean Xiaolu Wang
发明人： Gonzalo R. Arce , Gonzalo Garateguy , Sean Xiaolu Wang
IPC分类号： G06K9/18 , G06K7/10 , G06K19/06
摘要： The present invention embodies a technique to embed a graphic representation and/or a concealed message such as but not limited to two dimensional codes such as quick response (QR) code matrices, fingerprints, coded fingerprint representations, iris imagery, iris coded representation, biometric hashes, palm print or portraits into a QR matrix code. In the case where biometric data such as finger print representation, iris coded representation or biometric hashes are encoded into the embedding, suitable binary representation of those patterns are generated before encoding. These concealed messages can be further encrypted using any cryptographic method such as public or private key or other suitable encrypting mechanisms adapted to the concealed message. For an implementation of the present invention in which a graphic representation is embedded into the code, the embedding process is based on an optimization method by which the color or luminance of the embedding is modified so as to minimize the visual distortion with respect to a reference image while maintaining the probability of decoding error of the standard and concealed code under a predetermined limit.

7. 发明授权

US06493112B1 Method and apparatus for producing halftone images using green-noise masks having adjustable coarseness 有权
标题翻译：使用具有可调节粗糙度的绿噪声掩模制造半色调图像的方法和装置
公开(公告)号：US06493112B1
公开(公告)日：2002-12-10
申请号：US09228573
申请日：1999-01-11
申请人： Gonzalo R. Arce , Daniel L. Lau
发明人： Gonzalo R. Arce , Daniel L. Lau
IPC分类号： H04N140
CPC分类号： H04N1/405
摘要： A method and apparatus for producing halftone images which utilizes the advantageous stochastic patterning of dots found in frequency-modulated, blue-noise masks, and avoids the problem of dot gain provided in amplitude-modulated masks. Here a green-noise spectrum is used to generate a dither mask and the halftone patterns for each gray-level are subjected to the stacking constraint. The filters used in building the green-noise masks comprise filters using the conventional blue-noise mask for a coarseness parameter M′(g)=1 and filters having a principle frequency fg less than the principle frequency of blue-noise fb when coarseness parameter M′(g)>1. Unlike blue-noise dither patterns, green-noise dither patterns comprise pixel clusters, making them less susceptible to image degradation from dot gain, generating dot-profiles that are visually pleasing to the human eye.
摘要翻译：一种用于产生半色调图像的方法和装置，其利用在调频蓝噪声掩模中发现的点的有利的随机图案化，并且避免了在幅度调制掩模中提供的点增益的问题。这里使用绿噪声谱来产生抖动掩模，并且每个灰度级的半色调图案都受到堆叠约束。用于构建绿色噪声掩模的滤波器包括使用传统的蓝噪声掩模的粗糙度参数M'（g）= 1的滤波器和具有小于蓝噪声fb的主频率的原理频率fg的滤波器，当粗糙度参数 M'（g）> 1。与蓝噪声抖动图案不同，绿噪声抖动图案包括像素簇，使得它们不易受到点增益的图像劣化的影响，产生视觉上令人满意的人眼的点轮廓。

8. 发明授权

US5493593A Tilted detector microscopy in computerized tomography 失效
标题翻译：计算机断层扫描中的倾斜检测器显微镜
公开(公告)号：US5493593A
公开(公告)日：1996-02-20
申请号：US312719
申请日：1994-09-27
申请人： Martin Muller , Gonzalo R. Arce
发明人： Martin Muller , Gonzalo R. Arce
IPC分类号： G01N23/04 , A61B6/03
CPC分类号： G01N23/046 , G01N2223/419
摘要： The present invention relates to a method and setup for providing high resolution CT images at a low cost. The method utilizes a modified version of the standard CT setup wherein the radiation receiver (e.g., a detector(s)) is tilted with respect to an axis perpendicular to the plane of fan beam projection (e.g., when a fan shaped radiation beam is used). Moreover, to maximize the utilization of the radiation receiver and obtain the highest resolution in the final image, the radiation receiver is also shifted horizontally within the radiation beam.
摘要翻译：本发明涉及以低成本提供高分辨率CT图像的方法和设置。该方法利用标准CT设置的修改版本，其中辐射接收器（例如，检测器）相对于垂直于扇形束投影平面的轴线倾斜（例如，当使用扇形辐射束时））。此外，为了最大限度地利用辐射接收器并获得最终图像中的最高分辨率，辐射接收器也在辐射束内水平移位。

9. 发明授权

US07535517B2 Method of motion compensated temporal noise reduction 失效
标题翻译：运动补偿时间噪声降低方法
公开(公告)号：US07535517B2
公开(公告)日：2009-05-19
申请号：US11106998
申请日：2005-04-14
申请人： Zhi Zhou , Yeong-Taeg Kim , Gonzalo R. Arce
发明人： Zhi Zhou , Yeong-Taeg Kim , Gonzalo R. Arce
IPC分类号： H04N5/00 , H04N5/14
CPC分类号： H04N5/21 , H04N5/145 , H04N19/117 , H04N19/139 , H04N19/176 , H04N19/577
摘要： A method of reducing noise in a sequence of digital video frames is performed by motion estimation between a current noisy frame and a previous noise-reduced frame, to generate motion vectors indicating relative motion between the pixels in the current noisy frame and the corresponding pixels in the previous noise-reduced frame; and removing noise from the current noisy frame by computing the weighted average of pixels in the current noise frame and the corresponding pixels in the previous noise-reduced frame based on the motion vectors, to generate a noise-reduced output frame.
摘要翻译：通过当前噪声帧和先前减噪帧之间的运动估计来执行减少数字视频帧序列中的噪声的方法，以产生指示当前噪声帧中的像素与相应像素之间的相对运动的运动矢量以前的减噪帧; 以及通过基于运动矢量计算当前噪声帧中的像素的加权平均值和先前减少噪声的帧中的相应像素来消除来自当前噪声帧的噪声，以产生噪声减小的输出帧。

10. 发明授权

US07173733B2 Method for modeling color halftones 失效
标题翻译：彩色半色调建模方法
公开(公告)号：US07173733B2
公开(公告)日：2007-02-06
申请号：US10289397
申请日：2002-11-07
申请人： Cesar L. Nino , Gonzalo R. Arce
发明人： Cesar L. Nino , Gonzalo R. Arce
IPC分类号： H04N1/52 , H04N1/60
CPC分类号： H04N1/6016
摘要： A method for modeling color halftones that reduces both the number of parameters and the number of measurements needed to characterize an inkjet color printer. The method is based on the eigenanalysis of sample reflectance data and a probabilistic analysis that considers light scattering on the paper substrate as a breakage process governed by a log-normal distribution. The method estimates the reflectance of a print color by characterizing colors as a multiplicative composition of primary color reflectances rather than as an additive mixture of primary and secondary color reflectances as suggested by the theory of Neugebaeur.
摘要翻译：一种用于对颜色半色调进行建模的方法，其减少表征喷墨彩色打印机所需的参数数量和数量。该方法基于样品反射率数据的特征分析和将纸基材上的光散射视为由对数正态分布控制的断裂过程的概率分析。该方法通过将颜色表征为原色反射率的乘法组合而不是由Neugebaeur理论提出的初级和次级颜色反射的添加混合来估计印刷色的反射率。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式