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公开(公告)号：US5339368A
公开(公告)日：1994-08-16
申请号：US796703
申请日：1991-11-21
申请人： Michael J. Higgins-Luthman , Robert C. Kidd , Robert D. Klein , Robert C. Yen , Charles M. Zalinski
发明人： Michael J. Higgins-Luthman , Robert C. Kidd , Robert D. Klein , Robert C. Yen , Charles M. Zalinski
CPC分类号： H04N1/4074 , H04N19/126 , H04N19/14 , H04N19/149 , H04N19/172 , H04N19/18 , H04N19/60 , H04N19/85 , H04N19/124 , H04N19/146
摘要： A discrete transform image data compression system in which frequency transform coefficients are modified in accordance with a matrix of quantizer values employs a predefined plurality of quantization matrices to adaptively select, on a document-by-document basis, an approximate memory packet size for each document's compressed image data storage by selecting one of the plurality of quantization matrices in accordance with the packet size estimate obtained for each document image. Additionally, the system employs generation of contrast reduction and gray level stretch remapping curves as a function of global image data characteristics, such as a gray level histogram of the document image data. The remapping curves are utilized to preprocess the image data for more effective data compression.
摘要翻译： 其中根据量化器值的矩阵修改频率变换系数的离散变换图像数据压缩系统采用预定义的多个量化矩阵，以逐个文件的方式自适应地选择每个文档的近似存储分组大小 通过根据为每个文档图像获得的分组大小估计来选择多个量化矩阵之一来压缩图像数据存储。 此外，该系统采用对比度降低和灰度级拉伸重映射曲线的生成作为全局图像数据特征的函数，例如文档图像数据的灰度级直方图。 重新映射曲线用于预处理图像数据以进行更有效的数据压缩。
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公开(公告)号：US5410617A
公开(公告)日：1995-04-25
申请号：US150586
申请日：1993-11-10
申请人： Robert C. Kidd , Robert D. Klein
发明人： Robert C. Kidd , Robert D. Klein
CPC分类号： H04N1/4072 , G06K9/38 , H04N1/403 , G06K2209/01
摘要： A method of generating a remapping function for use in converting near-photographic document image pixel gray level data lying in a first range of gray level values to higher contrast, background-suppressed pixel gray level data lying in a second more limited gray level range. Global document information, such as a histogram of all the document's original pixels, is used to generate at least one threshold gray level value and to determine the shape of the remapping function on either side of the threshold. Preferably, the remapping function is implemented by a look-up table addressed in accordance with the original pixel data.
摘要翻译： 一种产生重映射功能的方法，用于将处于灰度级的第一范围内的近摄影文档图像像素灰度级数据转换为较高对比度，位于第二更有限的灰度级范围内的背景抑制像素灰度级数据。 全局文档信息（例如所有文档的原始像素的直方图）用于生成至少一个阈值灰度值，并确定阈值两侧的重映射函数的形状。 优选地，重映射功能由根据原始像素数据寻址的查找表来实现。
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公开(公告)号：US5329614A
公开(公告)日：1994-07-12
申请号：US651769
申请日：1991-02-07
CPC分类号： G06T3/4023
摘要： An image scaler which enlarges gray scale images, comprised of any number of gray scales, by any rational factor expressible as a ratio of integers between 1:1 and 2:1. The scaling method is "data conservative" in that it always keeps all of the original gray scale pixel values of the input image, generating additional pixel values as needed to produce an enlarged output image. The scaler generates an insertion number sequence for determining where to insert vacant pixel storage locations and calculates gray scale values for those newly created vacant locations by interpolating between values of neighboring pixels.
摘要翻译： 一种图像缩放器，其通过任何可以表示为1：1和2：1之间的整数比的理性因子来放大灰度图像，包括任意数量的灰度级。 缩放方法是“数据保守”，因为它总是保留输入图像的所有原始灰度像素值，根据需要产生附加像素值以产生放大的输出图像。 缩放器产生用于确定插入空闲像素存储位置的位置的插入数序列，并且通过在相邻像素的值之间进行内插来计算新创建的空闲位置的灰度值。
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公开(公告)号：US5768446A
公开(公告)日：1998-06-16
申请号：US314737
申请日：1994-09-29
申请人： George E. Reasoner, Jr. , Daniel R. Edwards , Gerald R. Smith , Debora Y. Grosse , Robert C. Kidd
发明人： George E. Reasoner, Jr. , Daniel R. Edwards , Gerald R. Smith , Debora Y. Grosse , Robert C. Kidd
CPC分类号： G06T9/007
摘要： In a system for processing and imaging documents to develop a stream of digital, video bit sets, each related to a different document is a passing array, this system including an arrangement for simultaneously compressing a number of said bit-sets for different document images and sending the results to output, this arrangement as comprising: a preprocessing stage for distributing each said bit set in a pair, of like parallel bit-compression paths, one, a Master path for half the bits in a set, the other a Slave path for the other half as controlled by The Master, with both input to a common buffer, each compression path being adapted to execute a first compression and then a conditional second compression when certain initial factors are indicated and to provide a real-time-compressed output to this buffer; and both said compressions being performed on a single, two pass stage of a Histogram/Compressor printed circuit board.
摘要翻译： 在用于处理和成像文档以开发数字视频位集合的系统中，每个与不同文档相关的每一个都是通过阵列，该系统包括用于同时压缩多个用于不同文档图像的所述位集合的装置，以及 将结果发送到输出，该布置包括：用于分配一对相似的并行比特压缩路径的每个所述比特集合的预处理阶段，一组，一组中的一半比特的主路径，另一个是从路径 对于由主机控制的另一半，通过两个输入到公共缓冲器，每个压缩路径适于执行第一压缩，然后在指定某些初始因素时进行条件二次压缩，并提供实时压缩输出 到这个缓冲区; 并且所述两个压缩均在直方图/压缩机印刷电路板的单个两通阶段执行。
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公开(公告)号：US5410616A
公开(公告)日：1995-04-25
申请号：US201715
申请日：1994-02-25
申请人： Robert C. Kidd
发明人： Robert C. Kidd
CPC分类号： G06T3/4007
摘要： A method and apparatus for scaling image pixel data by a rational scale factor of L/M utilizes look-up tables for input pixel addressing and convolution of up to two adjacent input pixels which offers an improved implementation of a conventional sampling rate conversion system wherein the input pixels are upsampled by a factor of L by inserting L-1 zeroes, interpolating the zero upsamples by finite impulse response techniques and down-sampling the interpolated data by a factor of M.
摘要翻译： 用于通过L / M的合理比例因子对图像像素数据进行缩放的方法和装置利用用于最多两个相邻输入像素的输入像素寻址和卷积的查找表，其提供了常规采样率转换系统的改进实现，其中 通过插入L-1个零，通过有限脉冲响应技术内插零上采样并将内插数据以M因子下采样，输入像素通过因子L被上采样。
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公开(公告)号：US5274473A
公开(公告)日：1993-12-28
申请号：US809032
申请日：1991-12-16
申请人： Robert C. Kidd , J. Brett Lefebvre
发明人： Robert C. Kidd , J. Brett Lefebvre
CPC分类号： H04N1/4058
摘要： A method for reproducing images using rotated screens, wherein the rotated screens are formed by the replication of a screen tile (ABCD). The screen tile (ABCD) is based on a seed screen cell (11, 17) that is disposed at the desired angle of screen rotation, theta, and is replicated so as to fill the screen tile. Thus, the screen can be generated by replicating the screen tile with respect to the same coordinate system as that identifying addresses for the image data being screened, i.e., without rotating the screen tile. Both the screen tile and the seed screen cell (11, 17) are represented by matrices. Noise (51) can be introduced into process of forming the screen in order to further lessen Moire patterns.
摘要翻译： 一种使用旋转屏幕再现图像的方法，其中旋转屏幕通过屏幕瓦片（ABCD）的复制形成。 屏幕瓦片（ABCD）基于以屏幕旋转θ所需的角度设置的种子屏幕单元（11,17），并且被复制以填充屏幕瓦片。 因此，可以通过相对于与被屏蔽的图像数据的识别地址相同的坐标系复制屏幕图块，即不旋转屏幕图块来生成屏幕。 屏幕瓦片和种子屏幕单元（11,17）都由矩阵表示。 可以将噪声（51）引入到形成屏幕的过程中，以进一步减少莫尔图案。
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公开(公告)号：US5848192A
公开(公告)日：1998-12-08
申请号：US296068
申请日：1994-08-24
申请人： Gerald R. Smith , Robert C. Kidd
发明人： Gerald R. Smith , Robert C. Kidd
CPC分类号： G06T9/007
摘要： A system for processing a stream of digital bit sets, each related to a different subject in a passing array, and including an arrangement for compressing the bit-sets and sending the results to an utilization stage; plus: a preprocessing stage for distributing each bit set in N parallel bit-compression paths, with all input sent to a common input buffer feeding these paths and each compression path being adapted to execute a prescribed first compression to ascertain "initial factors", and then a prescribed second compression to use the initial factors, with the second compression values selected according to "word count" factors derived from results of the first compression, and to thus provide a prescribed time-compressed output to the utilization stage; with both compressions performed according to JPEG standards; and the second compressions performed using prescribed selected QM and Huffman table values, and with a post processor stage to accept the compressed; data as 32-bit output and funnel it down to 16-bit output presented to the utilization stage.
摘要翻译： 一种用于处理数字位集流的系统，每个数据位集与通过阵列中的不同主题相关，并且包括用于压缩位组并将结果发送到利用级的装置; 加上：用于分配在N个并行位压缩路径中设置的每个位的预处理阶段，所有输入发送到馈送这些路径的公共输入缓冲器，并且每个压缩路径适于执行规定的第一压缩以确定“初始因子”，以及 然后使用规定的第二压缩来使用初始因子，其中根据从第一压缩的结果导出的“字数”因子选择第二压缩值，并且因此向利用阶段提供规定的时间压缩输出; 按照JPEG标准进行两次按压; 并且使用规定的选择的QM和霍夫曼表值进行第二次压缩，并且在后处理器阶段接受压缩; 数据作为32位输出，并将其下降到16位输出，呈现给使用阶段。
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公开(公告)号：US4503419A
公开(公告)日：1985-03-05
申请号：US458538
申请日：1983-01-17
申请人： Robert C. Kidd , Lawrence J. Porn
发明人： Robert C. Kidd , Lawrence J. Porn
CPC分类号： F01M11/10 , F01P2025/08 , F16N2250/18
摘要： Low oil level in an engine crankcase is detected immediately after the ignition switch is turned on by a circuit including the ignition switch, an oil level sensor and a coolant temperature sensor wherein a control circuit generates an output if a low oil level signal is present when the ignition switch is turned on. An enabling circuit allows an output only if the ignition switch has been turned off for a sufficient time period to allow oil drain back to the crankcase. A time delay circuit responsive to coolant temperature and the ignition switch prevents a control circuit output after the ignition switch is turned off for a short period when the temperature is high and a long period when the temperature is low.
摘要翻译： 在通过包括点火开关，油位传感器和冷却剂温度传感器的电路接通点火开关之后立即检测到发动机曲轴箱中的低油位，其中如果存在低油位信号，控制电路产生输出， 点火开关打开。 启用电路仅在点火开关已经关闭足够的时间段才允许输出，以使排油回到曲轴箱。 响应于冷却剂温度的时间延迟电路和点火开关防止当温度高时和温度低的长时间点火开关在短时间内关闭之后的控制电路输出。
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