公开(公告)号：US06658159B1

公开(公告)日：2003-12-02

申请号：US09527758

申请日：2000-03-17

申请人： David S. Taubman

发明人： David S. Taubman

IPC分类号： G06K936

CPC分类号： H04N19/645 ,  H04N19/647

摘要： Embedded block entropy coding with optimized truncation is useful for image compression schemes in conjunction, for example, with a Wavelet transform, so as to form a bit-stream which can be stored or transmitted with increased efficiency. In the arithmetic coding phase, several opportunities exist for minimizing complexity and improving compression and computational performance as compared to existing systems. One method involves bypassing the arithmetic coding procedure for certain lower significance bit-planes of each code-block. Then, the raw binary digits from these bit-planes can be interleaved into the arithmetically coded bit-stream. As a result, both the average number of arithmetically coded symbols and the maximum number of coding passes per code-block can be significantly reduced.

摘要翻译： 具有优化截断的嵌入式块熵编码对于图像压缩方案（例如，使用小波变换）是有用的，以便形成可以以更高效率存储或传输的比特流。 在算术编码阶段，存在与现有系统相比最小化复杂性和改进压缩和计算性能的几个机会。 一种方法涉及绕过每个代码块的某些较低有效位平面的算术编码过程。 然后，来自这些位平面的原始二进制数字可以被交织到算术编码比特流中。 结果，可以显着地减少算术编码符号的平均数和每个码块的最大编码遍数。

公开(公告)号：US07421137B2

公开(公告)日：2008-09-02

申请号：US10631884

申请日：2003-07-29

申请人： David S. Taubman

发明人： David S. Taubman

IPC分类号： G06K9/36 ,  G06K9/46 ,  H04N7/14

CPC分类号： H04N19/645 ,  H04N19/647

摘要： Embedded block entropy coding with optimized truncation is useful for image compression schemes in conjunction, for example, with a Wavelet transform, so as to form a bit-stream which can be stored or transmitted with increased efficiency. In the arithmetic coding phase, several opportunities exist for minimizing complexity and improving compression and computational performance as compared to existing systems. One method involves bypassing the arithmetic coding procedure for certain lower significance bit-planes of each code-block. Then, the raw binary digits from these bit-planes can be interleaved into the arithmetically coded bit-stream. As a result, both the average number of arithmetically coded symbols and the maximum number of coding passes per code-block can be significantly reduced.

摘要翻译： 具有优化截断的嵌入式块熵编码对于图像压缩方案（例如，使用小波变换）是有用的，以便形成可以以更高效率存储或传输的比特流。 在算术编码阶段，存在与现有系统相比最小化复杂性和改进压缩和计算性能的几个机会。 一种方法涉及绕过每个代码块的某些较低有效位平面的算术编码过程。 然后，来自这些位平面的原始二进制数字可以被交织到算术编码比特流中。 结果，可以显着地减少算术编码符号的平均数和每个码块的最大编码遍数。

公开(公告)号：US06459823B2

公开(公告)日：2002-10-01

申请号：US09181346

申请日：1998-10-28

申请人： Yucel Altunbasak ,  David S. Taubman

发明人： Yucel Altunbasak ,  David S. Taubman

IPC分类号： G06K932

CPC分类号： H04N1/3935

摘要： Hardware resolution of a scanner is increased without improving the quality of the scanner's sensor array or imaging optics. A first low-resolution representation of an image is generated during a first scan and a second low-resolution representation of the image is generated during a second scan. The scanner is configured to intentionally induce a motion error in either the first or second representation. A composite representation of the first and second representations is generated from the first and second representations, and a super resolution technique is used to generate a third representation of the image from the composite representation. The third representation has a higher resolution than the first and second representations.

摘要翻译： 增加扫描仪的硬件分辨率，而不会改善扫描仪传感器阵列或成像光学元件的质量。 在第一扫描期间产生图像的第一低分辨率表示，并且在第二次扫描期间生成图像的第二低分辨率表示。 扫描器被配置为有意地在第一或第二表示中引起运动误差。 从第一和第二表示生成第一和第二表示的复合表示，并且使用超分辨率技术从复合表示生成图像的第三表示。 第三表示具有比第一和第二表示更高的分辨率。

公开(公告)号：US06995796B2

公开(公告)日：2006-02-07

申请号：US10054201

申请日：2001-11-13

申请人： David S. Taubman

发明人： David S. Taubman

IPC分类号： H04N5/335

CPC分类号： H04N9/045 ,  H04N2209/046

摘要： An apparatus for recording an image. The apparatus includes a two-dimensional array of image sensors. Each image sensor provides a measurement of the light intensity in a selected spectral region. The two-dimensional array is generated from a plurality of identical blocks of sensors, the blocks being juxtaposed to form the array. Each of the blocks has equal numbers of sensors for each of the spectral regions, the number of different spectral regions being at least three. The sensors in the blocks are arranged in a two-dimensional array having a plurality of rows and columns. The sensors in the blocks are arranged such that any straight line passing through a given sensor also passes through sensors of at least three different colors whose spectral responses are all linearly independent. In the preferred embodiment of the present invention, all three such sensors lie within a disk, centered at the first sensor and having a radius no larger than five times the center to center spacing of the blocks in the sensor array. In the preferred embodiment of the present invention, each of the sensors corresponding to one of the selected spectral regions in blocks not adjacent to an edge of the two-dimensional array is adjacent to a sensor corresponding to the same spectral region.

摘要翻译： 一种用于记录图像的装置。 该装置包括图像传感器的二维阵列。 每个图像传感器提供所选光谱区域中的光强度的测量。 二维阵列由多个相同的传感器块产生，这些块被并置以形成阵列。 每个块对于每个光谱区域具有相等数量的传感器，不同光谱区域的数量至少为三个。 块中的传感器被布置成具有多个行和列的二维阵列。 块中的传感器布置成使得通过给定传感器的任何直线也通过至少三种不同颜色的传感器，其光谱响应都是线性独立的。 在本发明的优选实施例中，所有三个这样的传感器位于盘中，其位于第一传感器的中心并且具有不大于传感器阵列中的块的中心到中心间隔的五倍的半径。 在本发明的优选实施例中，与不与二维阵列的边缘相邻的块中的所选频谱区域中的一个对应的每个传感器与对应于相同光谱区域的传感器相邻。

公开(公告)号：US06381279B1

公开(公告)日：2002-04-30

申请号：US09608493

申请日：2000-06-30

申请人： David S. Taubman

发明人： David S. Taubman

IPC分类号： H04B166

CPC分类号： H04N5/4448 ,  H04N5/145

摘要： Motion between two video fields is estimated by obtaining a two-bit representation of each sample in the bandpass filtered fields; determining an initial coarse motion estimate by comparing the two-bit representations which are associated with relatively displaced regions from the two fields; and refining the initial coarse motion estimate to fractional pixel accuracy.

摘要翻译： 通过在带通滤波的场中获得每个样本的两比特表示来估计两个视频场之间的运动; 通过比较与来自两个场的相对位移区域相关联的两位表示来确定初始粗略运动估计; 并将初始粗略运动估计精确到分数像素精度。

公开(公告)号：US06546143B1

公开(公告)日：2003-04-08

申请号：US09267246

申请日：1999-03-12

申请人： David S. Taubman ,  Christos Chrysafis ,  Erik Ordentlich

发明人： David S. Taubman ,  Christos Chrysafis ,  Erik Ordentlich

IPC分类号： G06K936

CPC分类号： H04N19/423 ,  H04N19/42 ,  H04N19/63 ,  H04N19/645

摘要： A subband decomposition of an image is performed by filtering the image in a progression of N line windows. In a first filter stage, vertical filters perform high and low pass filtering on each N line window. Then horizontal filtering is performed on the output of each vertical filter. The lowest subband provided by the filter stage is recursively decomposed by additional filter stages. Higher subbands of each filter stage are encoded and placed in an embedded bitstream. Block encoding can be performed in which a number of lines of each subband are coded as a plurality of blocks. The blocks of a subband are coded independently of each other. The block coding supports region-of-interest reconstruction.

摘要翻译： 通过在N行窗口的进行中对图像进行滤波来执行图像的子带分解。 在第一滤波器级中，垂直滤波器对每个N线窗进行高低通滤波。 然后对每个垂直滤波器的输出进行水平滤波。 由滤波器级提供的最低子带由附加滤波器级递归地分解。 每个滤波器级的较高子带被编码并置于嵌入的比特流中。 可以执行块编码，其中每个子带的行数被编码为多个块。 子带的块被彼此独立地编码。 块编码支持兴趣区重建。

公开(公告)号：US06297851B1

公开(公告)日：2001-10-02

申请号：US08896006

申请日：1997-07-17

申请人： David S. Taubman ,  Andrew J. Patti

发明人： David S. Taubman ,  Andrew J. Patti

IPC分类号： H04N700

CPC分类号： H04N1/00291 ,  H04N1/00294 ,  H04N2201/0067

摘要： A method and system for capturing analog video data and previewing still video images of the captured analog video data without converting the analog video data into digital image data. The system takes analog video data and converts the data into raw digitized video data. The raw digitized video data is stored in a memory until the data is selected for previewing. Once selected, the raw digitized video data is reconverted into analog video data that presents a still image of the desired data. The system is also able to discard unnecessary portions of the raw digitized video data and store only necessary portions of the raw digitized video data. Preferably, the video capture, preview, and storage technique is used in video printing. When used in video printing, the raw digitized video data is converted into digital image data using a software decoding process.

摘要翻译： 一种用于捕获模拟视频数据并预览所捕获的模拟视频数据的静止视频图像而不将模拟视频数据转换成数字图像数据的方法和系统。 该系统采用模拟视频数据，并将数据转换成原始的数字化视频数据。 将原始数字化视频数据存储在存储器中，直到选择数据进行预览。 一旦选择，原始的数字化视频数据被转换成呈现所需数据的静止图像的模拟视频数据。 该系统还能够丢弃原始数字化视频数据的不必要部分，并且仅存储原始数字化视频数据的必要部分。 优选地，视频捕获，预览和存储技术用于视频打印。 当用于视频打印时，使用软件解码处理将原始数字化视频数据转换成数字图像数据。

公开(公告)号：US07030917B2

公开(公告)日：2006-04-18

申请号：US09177729

申请日：1998-10-23

申请人： David S. Taubman

发明人： David S. Taubman

IPC分类号： H04N3/335 ,  H04N1/46 ,  G06K9/00 ,  G06K9/32

CPC分类号： H04N9/045 ,  H04N2209/046

摘要： A method for operating a data processing system to generate a second image from a first image. The first image includes a two dimensional array of pixel values, each pixel value corresponding to the light intensity in one of a plurality of spectral bands at a location in the first image. The method utilizes a linear transformation of a vector derived from super input pixels to obtain a vector that includes at least one super output pixel. The super input pixels are defined by separating the pixels of the first image into a plurality of input image planes having identical numbers of pixels corresponding to the same spectral band. Each super input pixel is a vector of dimension P, where P is the number of the input image planes. Similarly, a set of output image planes is defined, each pixel in a given output image plane representing the intensity of the second image in one of a plurality of spectral bands at a corresponding point in the second image. Each super output pixel is a vector of dimension Q, where Q is the number of the output image planes, each component of that vector being a pixel from a corresponding output image plane. In the preferred embodiment of the present invention, the linear transformation depends on the properties of the optical system and the illumination source used to generate the first image.

摘要翻译： 一种用于操作数据处理系统以从第一图像生成第二图像的方法。 第一图像包括像素值的二维阵列，每个像素值对应于第一图像中的位置处的多个光谱带之一中的光强度。 该方法利用从超级输入像素导出的向量的线性变换来获得包括至少一个超级输出像素的向量。 通过将第一图像的像素分离成具有与相同光谱带对应的相同像素数的多个输入图像平面来定义超级输入像素。 每个超级输入像素是尺寸P的向量，其中P是输入图像平面的数量。 类似地，定义一组输出图像平面，给定输出图像平面中的每个像素表示在第二图像中的对应点处的多个光谱带中的一个光谱带中的一个中的第二图像的强度。 每个超级输出像素是尺寸Q的向量，其中Q是输出图像平面的数量，该矢量的每个分量是来自相应输出图像平面的像素。 在本发明的优选实施例中，线性变换取决于用于产生第一图像的光学系统和照明源的特性。

公开(公告)号：US06778709B1

公开(公告)日：2004-08-17

申请号：US09267248

申请日：1999-03-12

申请人： David S. Taubman

发明人： David S. Taubman

IPC分类号： G06K936

CPC分类号： H04N19/647 ,  H04N19/70 ,  H04N19/96

摘要： A multi-layer embedded bitstream is generated from a subband decomposition by partitioning each subband of the decomposition into a plurality of blocks; and encoding the blocks of each subband. The blocks of each subband are coded independently of each other. Resulting is a block bitstream corresponding to each block. Truncation points may be identified on the block bitstreams, and selected portions of the block bitstreams may be concatenated, layer-by-layer, to form the single-layer or multi-layer bitstream. Syntax information may also be added to the multi-layer bitstream. An image can be reconstructed from the embedded bitstream at a desired bit-rate or resolution by reading the syntax information, randomly accessing desired portions of the block bitstreams, decoding the randomly accessed portions, dequantizing the decoded portions, and applying an inverse transform to the dequantized portions.

摘要翻译： 通过将分解的每个子带划分成多个块，从子带分解生成多层嵌入比特流; 并对每个子带的块进行编码。 每个子带的块被彼此独立地编码。 结果是对应于每个块的块比特流。 可以在块比特流上识别截断点，并且可以逐层地级联块比特流的选定部分以形成单层或多层比特流。 语法信息也可以被添加到多层比特流。 可以通过读取语法信息，随机访问块比特流的期望部分，对随机访问的部分进行解码，对解码的部分进行解量化，以及将逆变换应用于 去量化部分。

公开(公告)号：US6122017A

公开(公告)日：2000-09-19

申请号：US10803

申请日：1998-01-22

申请人： David S. Taubman

发明人： David S. Taubman

IPC分类号： H04N1/387 ,  H04N5/14 ,  H04N5/44 ,  H04N5/21

CPC分类号： H04N5/4448 ,  H04N5/145

摘要： A method and system for combining the information from one video field, or multiple video fields in a single, high quality still image. A reference field and auxiliary fields are selected and an orientation map is constructed for the reference field. Motion maps are constructed to model displacement between the reference and auxiliary fields. The auxiliary fields are directionally interpolated using orientation maps. A merge mask is used to mask of certain pixels which should not be used in the final enhanced image. A weighted average is then formed from the reference field pixels which have not been masked off. A final still image is obtained after additional horizontal interpolation. Post-processing might be used to further sharpen the image. The method and system are applicable to both the luminance and chrominance components of the video image. The method and system serve to reduce the noise, as well as the luminance and color aliasing artifacts associated with the reference field, while enhancing its resolution, by utilizing information from the auxiliary fields.

摘要翻译： 一种用于组合来自一个视频场的信息或单个高质量静止图像中的多个视频场的方法和系统。 选择参考字段和辅助字段，并为参考字段构建方向图。 构造运动图以建模参考和辅助场之间的位移。 辅助场使用方向图定向插值。 合并掩码用于屏蔽最终增强图像中不应使用的某些像素。 然后从未被遮蔽的参考场像素形成加权平均值。 在额外的水平插值之后获得最终的静止图像。 后处理可能用于进一步锐化图像。 该方法和系统适用于视频图像的亮度和色度分量两者。 该方法和系统通过利用来自辅助场的信息来降低噪声以及与参考场相关联的亮度和颜色混叠伪影，同时增强其分辨率。