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31. 发明授权

US07796798B2 Frequency domain based MICR reader 有权
标题翻译：基于频域的MICR阅读器
公开(公告)号：US07796798B2
公开(公告)日：2010-09-14
申请号：US11383859
申请日：2006-05-17
申请人： Ravinder Prakash
发明人： Ravinder Prakash
IPC分类号： G06K9/00
CPC分类号： G06K7/084
摘要： A system and method for implementing frequency domain based magnetic ink character recognition (MICR). A system is provided that includes: a segmentation system for segmenting inputted MICR data into sets of temporal data for inputted characters; a Fourier system for generating a set of Fourier components from temporal data for an inputted character; a normalization system for normalizing the set of Fourier components to generate a normalized set of Fourier components; and a matching system for comparing the normalized set of Fourier components with each of a set of reference waveforms to determine an identity of the inputted character.
摘要翻译：一种用于实现基于频域的磁墨水字符识别（MICR）的系统和方法。提供了一种系统，其包括：分割系统，用于将输入的MICR数据分段成输入字符的时间数据集; 用于从输入字符的时间数据生成一组傅立叶分量的傅立叶系统; 归一化系统，用于对所述傅立叶分量集合进行归一化以产生傅立叶分量的归一化集合; 以及匹配系统，用于将傅立叶分量的归一化集合与一组参考波形中的每一个进行比较，以确定输入的字符的身份。

32. 发明授权

US07706004B2 Apparatus and system for scanning maintenance prediction 有权
标题翻译：扫描维护预测的装置和系统
公开(公告)号：US07706004B2
公开(公告)日：2010-04-27
申请号：US12027931
申请日：2008-02-07
申请人： Ravinder Prakash
发明人： Ravinder Prakash
IPC分类号： H04N1/04
CPC分类号： H04N1/00018 , H04N1/00002 , H04N1/00042 , H04N1/00047 , H04N1/0005 , H04N1/00063 , H04N1/00068 , H04N1/00076 , H04N1/00079 , H04N1/00087
摘要： An apparatus for predicting when maintenance is required for a scanner comprises a tracking module configured to track a quality parameter history, a prediction module configured to predict when maintenance is required based on the quality parameter history, and a notification module configured to notify a user when maintenance is predicted to be required based on a quality parameter trend. The quality parameter is selected from a group consisting of an average brightness, a maximum brightness, a video gradient, and a contrast.
摘要翻译：一种用于预测扫描器需要维护的装置，包括：跟踪模块，被配置为跟踪质量参数历史;预测模块，被配置为基于质量参数历史来预测何时需要维护;以及通知模块，其被配置为通知用户何时根据质量参数趋势预测需要维护。质量参数从由平均亮度，最大亮度，视频梯度和对比度组成的组中选择。

33. 发明授权

US07522761B2 System and method for detecting a streak in a compressed gray scale image 失效
标题翻译：用于检测压缩灰度图像中的条纹的系统和方法
公开(公告)号：US07522761B2
公开(公告)日：2009-04-21
申请号：US11219204
申请日：2005-09-02
申请人： Ravinder Prakash , Madhura Sathe
发明人： Ravinder Prakash , Madhura Sathe
IPC分类号： G06K9/00 , G06K9/36 , G06K9/40
CPC分类号： H04N19/60 , G06K9/036 , G06K9/527
摘要： A system and method for detecting a streak in a JPEG image. A system is provided that includes an extraction system for extracting a DC value from each cell block in the compressed image; an identification system for identifying a peak DC value in each rank of cell blocks within the compressed image; and an analysis system for analyzing the peak DC values to determine if a streak exists in the compressed image.
摘要翻译：用于检测JPEG图像中的条纹的系统和方法。提供了一种系统，其包括用于从压缩图像中的每个单元块提取DC值的提取系统; 识别系统，用于识别压缩图像内每个细胞块等级的峰值DC值; 以及用于分析峰值DC值以确定压缩图像中是否存在条纹的分析系统。

34. 发明申请

US20090046950A1 SYSTEM AND METHOD OF DETERMINING IMAGE SKEW USING CONNECTED COMPONENTS 失效
标题翻译：使用连接组件确定图像的系统和方法
公开(公告)号：US20090046950A1
公开(公告)日：2009-02-19
申请号：US12255782
申请日：2008-10-22
申请人： Ravinder Prakash , Madhura Sathe
发明人： Ravinder Prakash , Madhura Sathe
IPC分类号： G06K9/36
CPC分类号： G06K9/3283 , G06K9/186 , G06T7/11 , G06T7/73 , G06T2207/10008 , G06T2207/30176
摘要： A system and method for determining skew of a document image. An image processing system is provided, comprising: an image segmentation system that identifies and segments a line of printed characters; and a skew processing system that determines the skew by calculating slope values for pairs of characters in the line.
摘要翻译：一种用于确定文档图像的倾斜的系统和方法。提供一种图像处理系统，包括：图像分割系统，其识别并分割一行印刷字符; 以及通过计算该行中的字符对的斜率值来确定偏斜的偏斜处理系统。

35. 发明授权

US07454068B2 System and method for providing black white image compression 失效
标题翻译：提供黑白图像压缩的系统和方法
公开(公告)号：US07454068B2
公开(公告)日：2008-11-18
申请号：US10706584
申请日：2003-11-12
申请人： Ravinder Prakash
发明人： Ravinder Prakash
IPC分类号： G06K9/36
CPC分类号： H04N1/411 , G06T3/40
摘要： A compression system and method for compressing a bitonal image. A system is disclosed that comprises: a scaling system for geometrically scaling the bitonal image such that transition and isolated attributes are preserved, wherein the scaling system reduces contiguous sets of original pixels down to fewer scaled pixels; and an encoding system that encodes the scaled bitonal image using an industry standard format.
摘要翻译：一种压缩系统和压缩双目影像的方法。公开了一种系统，其包括：缩放系统，用于几何地缩放所述双色图像，使得保留所述转移和隔离的属性，其中所述缩放系统将原始像素的连续集合减少到较小的缩放像素; 以及使用工业标准格式对缩放比例图像进行编码的编码系统。

36. 发明申请

US20080130067A1 APPARATUS AND SYSTEM, FOR SCANNING MAINTENANCE PREDICTION 有权
标题翻译：装置和系统，用于扫描维护预测
公开(公告)号：US20080130067A1
公开(公告)日：2008-06-05
申请号：US12027931
申请日：2008-02-07
申请人： Ravinder Prakash
发明人： Ravinder Prakash
IPC分类号： H04N1/04
CPC分类号： H04N1/00018 , H04N1/00002 , H04N1/00042 , H04N1/00047 , H04N1/0005 , H04N1/00063 , H04N1/00068 , H04N1/00076 , H04N1/00079 , H04N1/00087
摘要： An apparatus for predicting when maintenance is required for a scanner comprises a tracking module configured to track a quality parameter history, a prediction module configured to predict when maintenance is required based on the quality parameter history, and a notification module configured to notify a user when maintenance is predicted to be required based on a quality parameter trend. The quality parameter is selected from a group consisting of an average brightness, a maximum brightness, a video gradient, and a contrast.
摘要翻译：一种用于预测扫描器需要维护的装置，包括：跟踪模块，被配置为跟踪质量参数历史;预测模块，被配置为基于质量参数历史来预测何时需要维护;以及通知模块，其被配置为通知用户何时根据质量参数趋势预测需要维护。质量参数从由平均亮度，最大亮度，视频梯度和对比度组成的组中选择。

37. 发明申请

US20070216747A1 Light source calibration and adjustment for scanning printer 审中-公开
标题翻译：扫描打印机的光源校准和调整
公开(公告)号：US20070216747A1
公开(公告)日：2007-09-20
申请号：US11376044
申请日：2006-03-15
申请人： Brian Blair , Tuyen Bui , Robert Cato , Robert Myers , Ravinder Prakash
发明人： Brian Blair , Tuyen Bui , Robert Cato , Robert Myers , Ravinder Prakash
IPC分类号： B41J2/385
CPC分类号： H04N1/00002 , H04N1/00013 , H04N1/00015 , H04N1/00031 , H04N1/00045 , H04N1/00053 , H04N1/00063 , H04N1/00087 , H04N1/02815 , H04N1/02865 , H04N1/02885 , H04N1/032 , H04N1/40056
摘要： A scanning printer including a scanner unit having an adjustable scanning light output may be adjusted by determining a minimum response for each pixel and a maximum response for each pixel when scanning a calibration document and setting the light output to correlate to a maximum response value. The scanner unit may include a reference plate for internal and routine performance adjustments which include comparison of initial and operational response to the reference plate. Performance adjustments may be designed to account for and overcome various typical operational problems encountered with frequent use.
摘要翻译：包括具有可调扫描光输出的扫描器单元的扫描打印机可以通过在扫描校准文件并将光输出设置为与最大响应值相关联时确定每个像素的最小响应和每个像素的最大响应来调整。扫描器单元可以包括用于内部和日常性能调整的参考板，其包括对参考板的初始和操作响应的比较。性能调整可能被设计为考虑和克服频繁使用遇到的各种典型操作问题。

38. 发明申请

US20050036680A1 System and method for segmenting an electronic image 有权
标题翻译：用于分割电子图像的系统和方法
公开(公告)号：US20050036680A1
公开(公告)日：2005-02-17
申请号：US10639671
申请日：2003-08-12
申请人： Ravinder Prakash
发明人： Ravinder Prakash
IPC分类号： G06K9/00 , G06K9/34 , G06K9/36 , G06T5/00 , H04N7/26 , H04N7/30
CPC分类号： H04N19/17 , G06T7/194 , G06T2207/20021 , G06T2207/20052 , H04N19/48 , H04N19/60
摘要： A system and method of identifying foreground segments in a JPEG image. The method includes the steps of: selecting a block in the JPEG image; extracting a set of DCT coefficients from the block, wherein the set comprises the first N AC components of the block; computing a sum of the set of DCT coefficients; and analyzing the sum to determine if the block is part of a foreground segment.
摘要翻译：识别JPEG图像中的前景段的系统和方法。该方法包括以下步骤：选择JPEG图像中的块; 从所述块中提取一组DCT系数，其中所述组包括所述块的所述前N个AC分量; 计算DCT系数集合的和; 并分析总和以确定块是否是前景段的一部分。

39. 发明授权

US5963654A Apparatus and method for monitoring performance of an image capture device 失效
标题翻译：用于监测图像捕获装置的性能的装置和方法
公开(公告)号：US5963654A
公开(公告)日：1999-10-05
申请号：US834605
申请日：1997-04-24
申请人： Ravinder Prakash , Michael J. Woolley , Dale D. Decker
发明人： Ravinder Prakash , Michael J. Woolley , Dale D. Decker
IPC分类号： H04N17/02 , G06T1/00 , G06T7/00 , G06T7/40 , H04N1/00 , G06K9/00
CPC分类号： G06T7/0004 , G06K9/036 , G06T2207/10008 , G06T2207/20056 , G06T2207/30176
摘要： Invented method, apparatus, and computer program product for determining image quality can be employed either during diagnostic mode or at run time of an imaging system. One component performs numerical analysis on a digital image. Another component accepts or rejects the quality of the digital image based on the results of the numerical analysis. In one embodiment, if the cumulative harmonic content of Fourier component amplitudes of a synthesized scan line exceeds a threshold value, the digital image is rejected as being of inadequate quality; otherwise the digital image is accepted. In another embodiment, a maximum gradient of a scan line of the digital image is computed. If, for some specified number of occurrences during a scan of a target, the maximum gradient exceeds a ceiling value or falls below a floor value, then the image is rejected.
摘要翻译：用于确定图像质量的发明的方法，装置和计算机程序产品可以在诊断模式期间或在成像系统的运行时采用。一个组件对数字图像执行数值分析。另一个组件基于数值分析的结果来接受或拒绝数字图像的质量。在一个实施例中，如果合成扫描线的傅立叶分量幅度的累积谐波含量超过阈值，则数字图像被拒绝为质量不足; 否则数字图像被接受。在另一个实施例中，计算数字图像的扫描线的最大梯度。如果对于目标扫描期间的某些特定次数的事件，最大梯度超过最大值或落在底板值以下，则图像被拒绝。

40. 发明授权

US5380999A Linear scanning using a single illumination and imaging optic stations with a first pair of parallel mirrors and a second pair of mirrors extending into paths of light beams 失效
标题翻译：使用具有第一对平行反射镜的单个照明和成像光学站的线性扫描以及延伸到光束路径中的第二对反射镜
公开(公告)号：US5380999A
公开(公告)日：1995-01-10
申请号：US174744
申请日：1993-12-29
申请人： Ravinder Prakash , Gene D. Rohrer
发明人： Ravinder Prakash , Gene D. Rohrer
IPC分类号： G02B26/10 , H04N1/03 , H01J3/14
CPC分类号： H04N1/02835 , G02B26/10 , H04N1/03 , H04N2201/02493
摘要： An optical scanning station is disclosed which utilizes light bending apparatus such as mirrors or optical wedges to gather and redirect some of the illumination radiating from the object. The gathering of the light occurs off-axis from the lens and the redirection of the light to the lens causes an off-axis angle between the light beam and the lens axis, thereby resulting in multiple images which are spaced apart from each other when focused on an image plane. The multiple images may be split apart and directed to separate image planes by use of front surface mirrors making the images then available for individual capture by charge couple devices or other similar image capture apparatus. Alternatively, the outboard images may be redirected, again by mirrors, to be focused coincident to the on-axis image, thereby increasing the illumination level at the image plane well in excess of that obtainable with only a single image of the object being focused at the image plane. The primary advantage of these devices is either to permit separate images to be presented on separate image planes without the subtractive losses occasioned by use of subtractive beam splitters or to combine the multiple images to raise the illumination level of a single image at the image plane, thereby permitting the use of slower lenses or reduced illumination level at the object.
摘要翻译：公开了一种光学扫描站，其利用诸如反射镜或光楔的光弯曲装置来收集和重定向从物体辐射的一些照明。光的聚集从透镜离轴发生，并且将光重定向到透镜会导致光束和透镜轴之间的偏轴角度，从而导致在聚焦时彼此间隔开的多个图像在图像平面上。多个图像可以被分开并通过使用前表面反射镜被引导到分离的图像平面，使得图像然后可用于电荷耦合设备或其他类似的图像捕获设备的单独捕获。或者，舷外图像可以再次通过反射镜被重定向以被重点地与轴上图像重合，从而增加图像平面上的照明水平，超过仅将对象的单个图像聚焦在图像平面。这些装置的主要优点是允许分开的图像呈现在不同的图像平面上，而不会由于使用减法分束器而产生的减法损失，或者组合多个图像以提高图像上的单个图像的照明水平，从而允许使用较慢的透镜或降低对象的照明水平。

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