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1. 发明授权

US06363116B1 Picture quality assessment using spatial location with or without subsampling 失效
标题翻译：使用或不使用次采样的空间位置的图像质量评估
公开(公告)号：US06363116B1
公开(公告)日：2002-03-26
申请号：US09122615
申请日：1998-07-25
申请人： John W. Edwards , Steven D. Maurer
发明人： John W. Edwards , Steven D. Maurer
IPC分类号： H04N0718
CPC分类号： H04N17/004 , H04N17/00
摘要： A picture quality assessment method based upon spatial location with or without subsampling within the picture divides the video picture into a plurality of arbitrarily sized, geometric segments. A segment weighting map is generated that provides one value for “safe picture” segments of the video picture and another value for the other segments. Optionally one or more of the segments may be subsampled to reduce processing time for realtime applications. The video picture on a segment basis is compared with a corresponding test video picture using a picture quality assessment algorithm to generate a quality error value for each segment. The quality error values are weighted according to the segment weighting map, and on an error display the weighted quality error values are displayed.
摘要翻译：基于空间位置的图像质量评估方法，在图像内有或没有二次采样将视频图像分割为多个任意大小的几何分段。生成分段加权映射，为视频图像的“安全图像”段提供一个值，并为其他段提供另一个值。可选地，一个或多个段可以被二次采样以减少实时应用的处理时间。使用图像质量评估算法将基于片段的视频图像与相应的测试视频图像进行比较，以产生每个片段的质量误差值。质量误差值根据分段加权图进行加权，在错误显示时显示加权质量误差值。

2. 发明授权

US06347116B1 Non-linear quantizer for video coding 失效
公开(公告)号：US06347116B1
公开(公告)日：2002-02-12
申请号：US08899096
申请日：1997-07-24
申请人： Barin Geoffry Haskell , Atul Puri , Robert Louis Schmidt
发明人： Barin Geoffry Haskell , Atul Puri , Robert Louis Schmidt
IPC分类号： H04N0718
CPC分类号： H04N19/186 , H04N19/124 , H04N19/126 , H04N19/13 , H04N19/176 , H04N19/60 , H04N19/61 , H04N19/91
摘要： A quantizer and dequantizer for use in a video coding system that applies non linear, piece-wise linear scaling functions to video information signals based on a value of a variable quantization parameter. The quantizer and dequantizer apply different non linear, piece-wise linear scaling functions to a DC luminance signal, a DC chrominance signal and an AC chrominance signal. A code for reporting updates of the value of the quantization parameter is interpreted to require larger changes when the quantization parameter initially is large and smaller changes when the quantization parameter initially is small.

3. 发明授权

US06456321B1 Surveillance camera apparatus, remote surveillance apparatus and remote surveillance system having the surveillance camera apparatus and the remote surveillance apparatus 有权
标题翻译：监视摄像装置，远程监视装置和具有监视摄像机装置和远程监视装置的远程监视系统
公开(公告)号：US06456321B1
公开(公告)日：2002-09-24
申请号：US09339046
申请日：1999-06-23
申请人： Fujio Ito , Kenji Takahashi , Hiroshi Miyabe , Haruo Tagawa
发明人： Fujio Ito , Kenji Takahashi , Hiroshi Miyabe , Haruo Tagawa
IPC分类号： H04N0718
CPC分类号： H04N7/183 , G06T9/00
摘要： Video data indicating a scene of a surveillance area is produced by a surveillance camera and is compressed to high-compressed video data and low-compressed video data. The low-compressed video data having a large data volume is stored in a storing unit, and the high-compressed video data having a small data volume is transmitted to a surveillance apparatus through a communication line at high speed. Also, in cases where the occurrence of an unusual condition is detected by a detector, an unusual condition detecting signal is transmitted to the surveillance apparatus. In the surveillance apparatus, the high-compressed video data is expanded, and a low-definition scene image of the surveillance area is displayed as a real time image. When the unusual condition detecting signal is received, the signal is displayed, and a watchman can notice the occurrence of the unusual condition. Because the watchman desires to view a scene image at high definition, the low-compressed video data stored in the storing unit is transmitted to the surveillance apparatus in response to a watchman's request, and a high-definition scene image of the surveillance area is displayed as a past-time image. Therefore, the watchman can precisely observe the unusual condition of the surveillance area.
摘要翻译：指示监视区域的场景的视频数据由监视摄像机产生，并被压缩成高压缩视频数据和低压缩视频数据。具有大数据量的低压缩视频数据被存储在存储单元中，并且具有小数据量的高压缩视频数据通过通信线路以高速被发送到监视设备。此外，在由检测器检测出异常状态的情况下，异常状态检测信号被发送到监视装置。在监视装置中，高压缩视频数据被扩展，监视区域的低清晰度场景图像被显示为实时图像。当接收到异常状态检测信号时，显示信号，看门人可以注意到异常状况的发生。由于守望者希望以高清晰度观看场景图像，所以存储在存储单元中的低压缩视频数据响应于守望者的请求被发送到监视装置，并且显示监视区域的高清晰度场景图像作为过去的时间图像。因此，守望者可以精确地观察监视区域的异常情况。

4. 发明授权

US06301299B1 Memory controller for an ATSC video decoder 失效
标题翻译：用于ATSC视频解码器的存储器控制器
公开(公告)号：US06301299B1
公开(公告)日：2001-10-09
申请号：US09087225
申请日：1998-05-28
申请人： Richard Sita , Shuji Inoue , Edward Brosz , Jereld Pearson , Michael Iaquinto
发明人： Richard Sita , Shuji Inoue , Edward Brosz , Jereld Pearson , Michael Iaquinto
IPC分类号： H04N0718
CPC分类号： H04N7/56 , G09G5/02 , G09G5/39 , G09G5/393 , G09G5/399 , G09G2340/02 , G09G2360/123 , H04N19/13 , H04N19/16 , H04N19/174 , H04N19/176 , H04N19/186 , H04N19/42 , H04N19/423 , H04N19/436 , H04N19/44 , H04N19/60 , H04N19/61 , H04N19/91
摘要： A video memory system for storing ATSC video image data is configured as three channels, each channel having two banks and each bank including a plurality of memory rows. The exemplary memory system includes a buffer area for holding bit-stream data and six field buffer areas. The field buffer areas are arranged in pairs to form a three frame buffer areas, such that the buffer areas for the two fields in a given frame are allocated in respectively different banks. The video memory system includes an output memory controller which receives macroblocks of decoded image data and divides the received macroblocks into respective upper and lower half-macroblocks, the upper half-macroblock being stored in one field buffer of the frame and the lower half-macroblock being stored in the other field buffer of the frame. In addition, the output memory controller stores the luminance and chrominance components of the half-macroblocks in respectively different channels of the memory device and the channel assignment is changed from one half-macroblock to the next. The memory system also includes an input memory controller which retrieves reference half-macroblocks from the memory. The input memory controller is coupled to first and second address generators which operate concurrently to address image data in respectively different channels, banks and memory rows so that, when a reference half-macroblock which includes components from two or more stored half-macroblocks is retrieved, the memory read operations are overlapped.
摘要翻译：用于存储ATSC视频图像数据的视频存储器系统被配置为三个通道，每个通道具有两个存储体，并且每个存储体包括多个存储器行。示例性存储器系统包括用于保持位流数据的缓冲区和六个场缓冲区。场缓冲区成对布置以形成三帧缓冲区，使得给定帧中的两个场的缓冲区分配在不同的存储体中。视频存储器系统包括输出存储器控制器，其接收解码图像数据的宏块，并将接收到的宏块划分为相应的上半宏块和下半宏块，上半部宏块存储在该帧的一个场缓冲器中，下半宏块被存储在帧的另一个场缓冲器中。此外，输出存储器控制器将半宏块的亮度和色度分量存储在存储器件的不同通道中，并且通道分配从一个半宏块改变到下一个。存储器系统还包括从存储器检索参考半宏块的输入存储器控制器。输入存储器控制器耦合到第一和第二地址发生器，其同时操作以分别在不同的通道，存储体和存储器行中寻址图像数据，使得当检索到包括来自两个或更多存储的半宏块的组件的参考半宏块时，存储器读操作重叠。

5. 发明授权

US06674805B1 System for controlling a clock signal for synchronizing a counter to a received value and method thereof 有权
标题翻译：用于控制用于使计数器与接收值同步的时钟信号的系统及其方法
公开(公告)号：US06674805B1
公开(公告)日：2004-01-06
申请号：US09563209
申请日：2000-05-02
申请人： Branko Kovacevic , Kevork Kechichian
发明人： Branko Kovacevic , Kevork Kechichian
IPC分类号： H04N0718
CPC分类号： H04N21/4305
摘要： In accordance with a specific embodiment of the present invention one of a first, second, and third reference signal generator is selected. When a first reference signal generator is selected, a value associated with the pulse width modulated register is compared to a second register to control generation of the reference clock. When a second reference signal generator is selected, a phase accumulator is used to generate the reference clock. When a third reference signal generator is selected, a digital phase locked loop generates the reference clock. The present invention is better understood with reference to specific embodiments.
摘要翻译：根据本发明的具体实施例，选择第一，第二和第三参考信号发生器之一。当选择第一参考信号发生器时，将与脉冲宽度调制寄存器相关联的值与第二寄存器进行比较，以控制参考时钟的产生。当选择第二参考信号发生器时，使用相位累加器来产生参考时钟。当选择第三参考信号发生器时，数字锁相环产生参考时钟。参考具体实施例更好地理解本发明。

6. 发明授权

US06535241B1 Multi-person stereo display system 失效
标题翻译：多人立体显示系统
公开(公告)号：US06535241B1
公开(公告)日：2003-03-18
申请号：US08748595
申请日：1996-11-13
申请人： Ian McDowall , Mark Bolas
发明人： Ian McDowall , Mark Bolas
IPC分类号： H04N0718
CPC分类号： H04N13/334 , G02B27/0093 , G02B27/2264 , H04N13/15 , H04N13/158 , H04N13/161 , H04N13/189 , H04N13/286 , H04N13/324 , H04N13/341 , H04N13/363 , H04N13/368 , H04N13/398
摘要： The multi-person stereo display system permits several independent viewers to see different stereo images on a single projection surface. This is accomplished through the innovative use of video multiplexing, software, control electronics, and special viewing glasses. The system is particularly useful in situations where the viewers see computer generated images from their own independent perspectives.
摘要翻译：多人立体声显示系统允许几个独立的观看者在单个投影表面上看到不同的立体图像。这是通过创新使用视频复用，软件，控制电子和特殊观看眼镜来实现的。该系统在观众从自己的独立视角看计算机生成的图像的情况下特别有用。

7. 发明授权

US06188730B1 Highly programmable chrominance filter for 4:2:2 to 4:2:0 conversion during MPEG2 video encoding 失效
标题翻译：在MPEG2视频编码期间4：2：2到4：2：0的高度可编程色度滤波器
公开(公告)号：US06188730B1
公开(公告)日：2001-02-13
申请号：US09046286
申请日：1998-03-23
申请人： Agnes Yee Ngai , Michael Patrick Vachon
发明人： Agnes Yee Ngai , Michael Patrick Vachon
IPC分类号： H04N0718
CPC分类号： H04N19/186 , H04N9/64 , H04N19/59 , H04N19/85
摘要： A filter for downsampling input video having a first chrominance sampling to a second chrominance sampling. The input video has a Bitstream of data representing a sequence of picture frames, where each picture frame has a plurality of video lines. The filter has a means for choosing a downsampling mode from a list of available downsampling modes for the downsampling of the first chrominance sampling. The filter also has a means for dividing each picture frame into video line sets according to predetermined criteria for the particular downsampling mode chosen, where each video line set has at least two video lines. A means for assigning default downsampling coefficients for each of the video lines in the video line sets based upon the downsampling mode chosen is also provided in the filter. Lastly, the filter has a means for downsampling each video line set to a single video line having the second chrominance sampling. In a preferred embodiment, the first chrominance sampling is 4:2:2 and the second chrominance sampling is 4:2:0.
摘要翻译：用于对具有第一色度采样到第二色度采样的输入视频进行下采样的滤波器。输入视频具有表示图像序列的数据的比特流，其中每个图像帧具有多个视频行。滤波器具有用于从用于下采样第一色度采样的可用下采样模式的列表中选择下采样模式的装置。滤波器还具有根据所选择的特定下采样模式的预定标准将每个图像帧划分成视频行集合的装置，其中每个视频行集合具有至少两个视频行。在过滤器中还提供了用于根据所选择的下采样模式为视频行集合中的每个视频行分配默认下采样系数的装置。最后，滤波器具有用于对设置为具有第二色度采样的单个视频线的每个视频线进行下采样的装置。在优选实施例中，第一色度采样为4：2：2，第二色度采样为4：2：0。

8. 发明授权

US06519288B1 Three-layer scaleable decoder and method of decoding 失效
标题翻译：三层可扩展解码器和解码方法
公开(公告)号：US06519288B1
公开(公告)日：2003-02-11
申请号：US09035969
申请日：1998-03-06
申请人： Anthony Vetro , Huifang Sun , Tommy Poon
发明人： Anthony Vetro , Huifang Sun , Tommy Poon
IPC分类号： H04N0718
CPC分类号： H04N19/59
摘要： The apparatus for decoding a digital signal includes a composite picture forming unit for forming a composite picture from a first digital video signal and a second digital video signal. The first digital video signal includes inter-coded picture data. A down-converter receives a third digital video signal, and outputs the third digital video signal to the composite picture forming unit as the first digital signal in a first mode. However, the down-converter down-converts the third digital video signal into a fourth digital video signal in a second mode, and outputs the fourth digital video signal to the composite picture forming unit in the second mode. A memory stores the anchor pictures output from the composite picture forming unit, and a motion compensator generates the second digital signal based on the stored anchor pictures.
摘要翻译：用于对数字信号进行解码的装置包括用于从第一数字视频信号和第二数字视频信号形成合成图像的合成图像形成单元。第一数字视频信号包括帧间编码图像数据。下变频器接收第三数字视频信号，并以第一模式将第三数字视频信号作为第一数字信号输出到合成图像形成单元。然而，下变频器在第二模式中将第三数字视频信号下变频为第四数字视频信号，并在第二模式中将第四数字视频信号输出到复合图像形成单元。存储器存储从复合图像形成单元输出的锚图像，并且运动补偿器基于存储的锚图像生成第二数字信号。

9. 发明授权

US06348945B1 Method and device for encoding data 有权
标题翻译：用于编码数据的方法和设备
公开(公告)号：US06348945B1
公开(公告)日：2002-02-19
申请号：US09068236
申请日：1999-01-25
申请人： Tomoo Hayakawa
发明人： Tomoo Hayakawa
IPC分类号： H04N0718
CPC分类号： H04N9/8047 , H04N19/112 , H04N19/122 , H04N19/124 , H04N19/126 , H04N19/132 , H04N19/14 , H04N19/149 , H04N19/176 , H04N19/18 , H04N19/184 , H04N19/436 , H04N19/56 , H04N19/567 , H04N19/60 , H04N19/61 , H04N19/65 , H04N19/88 , H04N19/89
摘要： DCT coefficient data obtained by transforming inputted picture data at a DCT (Discrete Cosine Transform) circuit 2 is quantized by selected one of plural quantizers at a quantizing circuit 7 to allow the quantized data to undergo variable length encoding at a variable length encoding circuit 8 to output it. A class designation circuit 30 compares DCT coefficient data from the DCT circuit 2 with threshold values Th1, Th2, Th3 in macro block units to carry out class designation to output activity code AT. A code quantity estimation section 10 estimates total encoded data quantity when data corresponding to 1 video segment which is 5 macro blocks of DCT coefficient data which have been read out from a zigzag read-out circuit 3 is quantized by respective quantizers to allow the quantized data thus obtained to undergo variable length encoding to send, to the quantizing circuit 7, quantizer number for determining an optimum one of the quantizers in which the estimated data quantity is reference value or less. Any different one of reference values of the code quantity estimation section 10 and threshold values Th1, Th2, Th3 of the class designation circuit 30 are read out from the compression factor table 12 in dependency upon information of a desired compression factor from a terminal 11. Thus, a desired compression factor can be easily obtained in compression-encoding.
摘要翻译：通过在DCT（离散余弦变换）电路2处变换输入图像数据而获得的DCT系数数据由量化电路7由多个量化器中的选择的一个量化，以允许量化数据在可变长度编码电路8进行可变长度编码，输出它。类别指定电路30将来自DCT电路2的DCT系数数据与以宏块为单位的阈值Th1，Th2，Th3进行比较，以进行类别指定以输出活动代码AT。代码量估计部分10当对应于已经从锯齿形读出电路3读出的5个具有DCT系数数据的宏块的1个视频段的数据被相应量化器量化时，估计总编码数据量，以允许量化数据从而获得经过可变长度编码以向量化电路7发送用于确定估计数据量为参考值或更小的量化器中的最佳一个的量化器编号。根据来自终端11的期望的压缩因子的信息，从压缩因子表12读出代码量估计部分10的参考值和类别指定电路30的阈值Th1，Th2，Th3中的任何不同的参考值。因此，在压缩编码中可以容易地获得期望的压缩因子。

10. 发明授权

US06344872B1 System for transporting and imaging a textile material 失效
标题翻译：用于运输和成像纺织材料的系统
公开(公告)号：US06344872B1
公开(公告)日：2002-02-05
申请号：US09362536
申请日：1999-07-28
申请人： Randall R. Bresee , Chang H. Hsi
发明人： Randall R. Bresee , Chang H. Hsi
IPC分类号： H04N0718
CPC分类号： D06H3/08 , G01N21/8983 , G01N33/367 , H04N7/18
摘要： The present invention relates to a system for transporting and imaging a textile material. In particular, the present invention is directed toward a system comprising a motorized conveyor capable of moving a sheet of textile material around the far outer surface of an upper rod such that the portion of the textile material extending around the far outer surface of the upper rod can be imaged by a camera.
摘要翻译：本发明涉及一种用于运输和成像纺织材料的系统。特别地，本发明涉及一种包括电动输送机的系统，该电动输送机能够将一片纺织材料片围绕上杆的远的外表面移动，使得纺织材料的部分围绕上杆的远的外表面延伸可以通过相机成像。

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