-
公开(公告)号：US4674125A
公开(公告)日：1987-06-16
申请号：US596817
申请日：1984-04-04
IPC分类号： G01R23/167 , G06F17/10 , H04N7/26 , G06K9/54
CPC分类号： H04N19/63 , G01R23/167 , G06F17/10
摘要： Pipe-line architecture is employed for analyzing in delayed real time the frequency spectrum of an information component (having one or more dimensions) of a given temporal signal having a highest frequency of interest of no greater than f.sub.0, and/or for synthesizing in delayed real time such a temporal signal from the analyzed frequency spectrum thereof. Such pipe-line architecture is particularly suitable for image-processing the two-dimensional spatial frequencies of television images defined by a temporal video signal.
摘要翻译： 采用管线架构来延迟实时分析具有不大于f0的最高感兴趣频率的给定时间信号的信息分量（具有一个或多个维度）的频谱和/或用于在延迟时间 来自其分析频谱的实时时间信号。 这种管线结构特别适用于对由时间视频信号定义的电视图像的二维空间频率进行图像处理。
-
公开(公告)号：US5614961A
公开(公告)日：1997-03-25
申请号：US447104
申请日：1995-05-22
CPC分类号： H04N9/3132 , G02B26/10 , G02B26/101 , G02B26/123 , H04N5/74 , H04N9/3129
摘要： Method and apparatus for a multi-application, laser-array-based image system utilizes three linear laser arrays. Each linear array generates multiple (N>1) parallel output beamlets at one of the three primary colors (red, green, blue). The corresponding 1 to N output beamlets of the three linear arrays, each individually modulated in luminance according to a specific encoding scheme representing the video image to be produced on the viewing screen, are combined spatially to form a single white light linear array source. Through a projection/scanner optical system, the N output beamlets of the white light source are simultaneously directed to, and swept horizontally across a distant viewing screen, resulting in a swath of N lines of a graphic video image. By producing M contiguous swaths vertically down the viewing screen, a full image of M.times.N lines is produced. The red, green, and blue linear laser arrays may consist of arrays of semiconductor laser diodes made of suitable semiconductor materials so as to directly emit radiation at wavelengths corresponding to red, green, and blue colors, respectively. Alternatively, the red, green and blue color arrays may be formed by arrays of semiconductor laser diodes emitting radiation at twice the desired red, green and blue wavelengths, whose radiation is coupled to arrays of second harmonic generation crystal elements.
摘要翻译： 用于多应用，基于激光阵列的图像系统的方法和装置利用三个线性激光阵列。 每个线性阵列以三原色（红色，绿色，蓝色）中的一种生成多个（N> 1）并行输出子束。 根据表示要在观看屏幕上产生的视频图像的特定编码方案，按照亮度单独调制的三个线性阵列的对应的1到N个输出子束在空间上组合以形成单个白光线性阵列源。 通过投影/扫描仪光学系统，白光源的N个输出子束同时被引导到水平地扫过远处的观察屏幕，导致图形视频图像的N行的条纹。 通过在观察屏幕垂直方向生成M个连续的条带，产生了MxN线的全部图像。 红色，绿色和蓝色线性激光器阵列可以由由合适的半导体材料制成的半导体激光二极管的阵列组成，以便分别直接发射对应于红色，绿色和蓝色的波长的辐射。 或者，红色，绿色和蓝色阵列可以由发射两倍于期望的红色，绿色和蓝色波长的辐射的半导体激光二极管的阵列形成，其辐射耦合到二次谐波产生晶体元件的阵列。
-
公开(公告)号：US5483474A
公开(公告)日：1996-01-09
申请号：US151965
申请日：1993-11-15
CPC分类号： H04N5/14 , H03H17/0202 , H04N7/0102 , H04N7/0132
摘要： Filtering apparatus responsive to a sequence of samples of an input signal that is digitally-sampled at a given frequency, wherein the input signal defines information having at least one dimension. The apparatus includes first resampler for resampling the input-signal to derive a first signal at a first frequency which is substantially equal to the reciprocal 1/C of a given factor C times the given frequency, and second resampler for resampling the first signal to derive a second signal at a second frequency which is substantially equal to the given factor C times the first frequency. The given factor C is an improper fraction having a least-common-denominator larger than one. This filtering apparatus is particularly suitable for variably spatially low-pass, high-pass, band-pass or hierarchical-pyramid filtering two-dimensional image information in each of its two-dimensions by amounts which are independent of one another.
摘要翻译： 滤波装置响应于以给定频率被数字采样的输入信号的样本序列，其中输入信号定义具有至少一个维度的信息。 该装置包括用于重新采样输入信号的第一重采样器，以得到基本上等于给定频率乘以给定因子C的倒数1 / C的第一频率的第一信号，以及用于对第一信号进行重采样的第二重采样器 第二频率的第二信号基本上等于给定因子C乘以第一频率。 给定因子C是具有大于1的最小公分母的不适当分数。 该滤波装置特别适用于彼此独立的二维数据中的每一个中的可变空间低通，高通，带通或分层金字塔滤波二维图像信息。
-
公开(公告)号：US5355328A
公开(公告)日：1994-10-11
申请号：US33503
申请日：1993-03-18
CPC分类号： H03H17/0685 , G06F17/17 , H04N5/14 , H04N5/2628
摘要： A digital resampler comprises a combination of first means and second means. The first means, which includes interpolation filter means, is responsive to the digital-signal sample values of an input sample stream for producing a first derived sample stream of digital-signal sample values in which the given sampling period P of the input stream is multiplied directly by a factor equal to M'/CL, where C is a given positive integer and M' is smaller than CL, either 2.sup.n (M'/CL) or 2.sup.-n (M'/CL) is equal to M/L and the absolute value of n is at least equal to zero, so that the sampling period of the first derived sample stream is (M'/CL)P. The second means, which includes octave prefiltering and sample means, is responsive to the first derived sample stream of digital-signal sample values for producing as an output a second derived sample stream of digital-signal sample values in which the first derived sampling period (M'/CL)P of the first derived sample stream is multiplied by a factor equal to either 2.sup.n (M'/CL) or 2.sup.-n (M'/CL), so that the sampling period of the second derived sample stream is (M/L)P.
摘要翻译： 数字重采样器包括第一装置和第二装置的组合。 包括内插滤波器装置的第一装置响应于输入采样流的数字信号采样值，用于产生数字信号采样值的第一导出样本流，其中输入流的给定采样周期P被乘以 直接等于M'/ CL的因子，其中C是给定的正整数，M'小于CL，2n（M'/ CL）或2-n（M'/ CL）等于M / L 并且n的绝对值至少等于零，使得第一导出样本流的采样周期为（M'/ CL）P。 包括八度预滤波和采样装置的第二装置响应于数字信号采样值的第一导出采样流，以产生数字信号采样值的第二导出采样流作为输出，其中第一导出采样周期（ 将第一导出样本流的M'/ CL）P乘以等于2n（M'/ CL）或2-n（M'/ CL）的因子，使得第二派生样本流的采样周期为 （M / L）P。
-
公开(公告)号：US4709394A
公开(公告)日：1987-11-24
申请号：US768809
申请日：1985-08-23
IPC分类号： H04N5/21 , G06F15/00 , G06F17/10 , G06K9/54 , G06T1/00 , G08C13/00 , H03H17/00 , H03H17/02 , H04N7/26 , H04N7/54
摘要： The amount of hardware required to implement a Burt Pyramid or an FSD (filter-subtract-decimate) pyramid analyzer (or synthesizer) stage of a sampled temporal signal representing an n-dimensional information component or (such as a video signal) is substantially reduced by employing a time-synchronized multiplexed analyzer stage to derive (or a time-synchronized multiplexed synthesizer stage that is responsive to) a single serial stream of samples of a predetermined plural number of sub-spectra that are arranged in a predetermined temporal order format with respect to one another in accordance with each of a given set of time synchronized, repetitively generated, serially applied control signals.
摘要翻译： 执行代表n维信息分量或（如视频信号）的采样时间信号的Burt Pyramid或FSD（滤除 - 减去 - 抽取）金字塔分析器（或合成器）级所需的硬件量大大减少 通过采用时间同步复用分析器级来导出以预定的时间顺序格式排列的预定多个子频谱的单个串行串流样本的（或时间同步复用合成器级） 根据给定的一组时间同步，重复产生，串行施加的控制信号彼此相对。
-
6.发明授权Interlaced digital video input filter/decimator and/or expander/interpolator filter 失效隔行数字视频输入滤波器/抽取器和/或扩展器/插值滤波器
公开(公告)号：US4603350A
公开(公告)日：1986-07-29
申请号：US685239
申请日：1984-12-21
CPC分类号： H04N7/012 , G06T3/4023
摘要： Reduction of storage capacity required by one dimensional digital filter/decimator and/or expander/interpolation filter for spatially filtering that given dimension of a scanned two-dimensional image, represented by a temporal video signal, which is orthogonal to raster scan lines. Such filter devices are particularly suitable for use in Burt Pyramid image processing systems.
摘要翻译： 减少一维数字滤波器/抽取器和/或扩展器/内插滤波器所需的存储容量，用于对由与光栅扫描线正交的时间视频信号表示的扫描的二维图像的给定尺寸进行空间滤波。 这种过滤装置特别适用于Burt Pyramid图像处理系统。
-
公开(公告)号：US4694413A
公开(公告)日：1987-09-15
申请号：US632467
申请日：1984-07-19
申请人： James H. Arbeiter
发明人： James H. Arbeiter
CPC分类号： H03H17/0235
摘要： The number of bits per digital sample that is required to be stored in each of one or more delay means of an input-weighted multitap digital filter is reduced with respect to that required by the prior art. The savings in storage hardware becomes more and more significant as the number of samples stored in each delay means becomes larger and larger. A plurality of filter delay means, each storing as many as 800 samples, are used in vertical filters of image processors operating in real time on horizontally scanned two-dimensional images, such as television images.
摘要翻译： 相对于现有技术所要求的，每个数字样本的每个数字样本的位数减少到输入加权多位数字滤波器的一个或多个延迟装置中的每一个中。 随着每个延迟装置中存储的样本数量越来越多，存储硬件的节省就变得越来越重要。 在水平扫描的二维图像（例如电视图像）上实时操作的图像处理器的垂直滤波器中使用多个滤波器延迟装置，每个滤波器延迟装置存储多达800个采样。
-
公开(公告)号：US5060242A
公开(公告)日：1991-10-22
申请号：US314749
申请日：1989-02-24
申请人： James H. Arbeiter
发明人： James H. Arbeiter
摘要： An image signal processing system DPCM encodes the signal, then Huffman and run length encodes the signal to produce variable length code words, which are then tightly packed without gaps for efficient transmission without loss of any data. The tightly packing apparatus has a barrel shifter with its shift modulus controlled by an accumulator receiving code word length information. An OR gate is connected to the shifter, while a register is connected to the gate. Apparatus for processing a tightly packed and decorrelated digital signal has a barrel shifter and accumulator for unpacking, a Huffman and run length decoder, and an inverse DCPM decoder.
-
公开(公告)号：US4815023A
公开(公告)日：1989-03-21
申请号：US45986
申请日：1987-05-04
申请人： James H. Arbeiter
发明人： James H. Arbeiter
CPC分类号： H03H17/0272 , H03H2218/08
摘要： By staggering the phases of the decimations of the subbands in a quadrature mirror filter bank odd-tap kernels may be usefully employed.
摘要翻译： 可以有效地使用正交镜滤波器组奇数抽头核中的子带的抽取的相位。
-
10.发明授权Display processor with color matrixing circuitry and two map memories storing chrominance-only data 失效具有彩色矩阵电路的显示处理器和存储仅有色度数据的两个映像存储器
公开(公告)号：US4719503A
公开(公告)日：1988-01-12
申请号：US918565
申请日：1986-10-14
CPC分类号： G09G1/285
摘要： A display processor using first and second chrominance map memories for storing values of first and second color-difference signals, each normalized respective to luminance signal. An image memory supplies, at pixel scan rate, data used to provide read-addresses to said first and second chrominance map memories and data used to describe the luminance signal. The first and second chrominance map memory read-outs are each multiplied by the luminance signal of appropriate spatial bandwidth to generate descriptions of the first and second color-difference signals i non-normalized form. These first and second color-difference signals and a full-spatial-bandwidth luminance signal are supplied to color matrixing circuitry. The color matrixing circuitry responds to these signals to provide red, green and blue drive signals to display apparatus. The display apparatus may comprise video amplifiers for the drive signals and a color kinescope, by way of example.
摘要翻译： 一种显示处理器，其使用第一和第二色度映像存储器来存储第一和第二色差信号的值，每个色差信号被归一化为亮度信号。 图像存储器以像素扫描速率提供用于向所述第一和第二色度映像存储器提供读取地址的数据以及用于描述亮度信号的数据。 第一和第二色度映射存储器读出器每个乘以适当的空间带宽的亮度信号，以产生第一和第二色差信号i非归一化形式的描述。 这些第一和第二色差信号和全空间带宽亮度信号被提供给彩色矩阵电路。 彩色矩阵电路响应于这些信号，以向显示装置提供红色，绿色和蓝色驱动信号。 作为示例，显示装置可以包括用于驱动信号的视频放大器和彩色显像管。
-
-
-
-
-
-
-
-
-
搜索结果
10 条记录 (耗时 0.025 秒)
