公开(公告)号：US20090323826A1

公开(公告)日：2009-12-31

申请号：US12217039

申请日：2008-06-30

申请人： Yongjun Wu ,  Naveen Thumpudi ,  Daniel Dinu ,  William R. Sanders

发明人： Yongjun Wu ,  Naveen Thumpudi ,  Daniel Dinu ,  William R. Sanders

IPC分类号： H04N7/26

CPC分类号： H04N19/895

摘要： Error concealment techniques for video decoding are described. For example, a video decoder after finding a corrupted picture in a bit stream, finds a suitable neighbor for the corrupted picture. For example, the video decoder favors pictures with the same parity as the corrupted picture and considers picture order count and picture corruption in choosing a neighbor. The decoder then modifies syntax elements for the encoded video in the bit stream to allow the neighbor to be used in concealing the corruption in the corrupted picture. The modification of syntax elements can depend on the particular video decoder implementation. For example, in a software-only multithreaded video decoder, a task graph is modified, while in a system utilizing video acceleration, syntax elements for reference lists are modified.

摘要翻译： 描述视频解码的错误隐藏技术。 例如，在比特流中找到损坏的图像之后的视频解码器找到用于损坏的图像的合适的邻居。 例如，视频解码器有利于与损坏的图像具有相同奇偶性的图像，并且在选择邻居时考虑图像顺序计数和图像损坏。 然后，解码器修改比特流中编码视频的语法元素，以允许邻居用于隐藏损坏的图像中的损坏。 语法元素的修改可以取决于特定的视频解码器实现。 例如，在仅软件多线程视频解码器中，任务图被修改，而在利用视频加速的系统中，用于参考列表的语法元素被修改。

公开(公告)号：US20090252233A1

公开(公告)日：2009-10-08

申请号：US12061567

申请日：2008-04-02

申请人： Gang Ji ,  Yongjun Wu ,  Florin Folta ,  Naveen Thumpudi

发明人： Gang Ji ,  Yongjun Wu ,  Florin Folta ,  Naveen Thumpudi

IPC分类号： H04N7/26

CPC分类号： H04N19/895 ,  H04N19/134 ,  H04N19/176 ,  H04N19/18 ,  H04N19/46 ,  H04N19/61

摘要： A decoder which can detect errors in MPEG-2 coefficient blocks can identify syntactically-correct blocks which have out-of-bounds coefficients. The decoder computes coefficient bounds based on quantization scalers and quantization matrices and compares these to coefficient blocks during decoding; if a block has out-of-bounds coefficients, concealment is performed on the block. In a decoder implemented all in software, coefficient bounds checking is performed on iDCT coefficients against upper and lower bounds in a spatial domain. In a decoder which performs iDCT in hardware, DCT coefficients are compared to an upper energy bound.

摘要翻译： 可以检测MPEG-2系数块中的错误的解码器可以识别具有超出界限系数的语法上正确的块。 解码器基于量化缩放器和量化矩阵来计算系数界限，并在解码期间将其与系数块进行比较; 如果块具有超出范围的系数，则在块上执行隐藏。 在以软件实现的解码器中，针对空间域中的上限和下限对iDCT系数执行系数边界检查。 在硬件中执行iDCT的解码器中，将DCT系数与上限能量相比较。

公开(公告)号：US20050078755A1

公开(公告)日：2005-04-14

申请号：US10965237

申请日：2004-10-14

申请人： John Woods ,  Yongjun Wu ,  Robert Cohen

发明人： John Woods ,  Yongjun Wu ,  Robert Cohen

IPC分类号： G06F20060101 ,  H04N7/12 ,  H04N7/18 ,  H04N7/26 ,  H04N7/36

CPC分类号： H04N19/615 ,  H04N19/107 ,  H04N19/119 ,  H04N19/13 ,  H04N19/14 ,  H04N19/176 ,  H04N19/583 ,  H04N19/61 ,  H04N19/63 ,  H04N19/96

摘要： A method, computer program product, and computer system for processing video frames. A current frame is divided into M blocks that include at least two differently sized blocks. M is at least 9. Each block in the current frame is classified as being a motion block or an I-BLOCK. Overlapped block motion compensation (OBMC) is performed on each block of the M blocks according to a predetermined scan order. The block on which OBMC is being performed is denoted as a self block. The OBMC is performed on the self block with respect to its neighbor blocks. The neighbor blocks consist of nearest neighbor blocks of the self block. Performing OBMC on the self block includes generating a weighting window for the self block and for each of its neighbor blocks.

摘要翻译： 一种用于处理视频帧的方法，计算机程序产品和计算机系统。 当前帧被划分成M个块，其包括至少两个不同大小的块。 M至少为9.当前帧中的每个块被分类为运动块或I块。 根据预定的扫描顺序对M个块的每个块执行重叠块运动补偿（OBMC）。 将OBMC执行的块表示为自身块。 相对于其相邻块在自身块上执行OBMC。 相邻块由自身块的最近邻块组成。 在自身块上执行OBMC包括为自身块及其相邻块生成加权窗口。

公开(公告)号：US20050031342A1

公开(公告)日：2005-02-10

申请号：US10911780

申请日：2004-08-04

申请人： Yongjun Wu ,  Xingyue Sha

发明人： Yongjun Wu ,  Xingyue Sha

IPC分类号： H04B10/00 ,  H04B10/02 ,  H04B10/08 ,  H04B10/155 ,  H04B10/50 ,  H04B10/54 ,  H04B10/556 ,  H04B10/69

CPC分类号： H04B10/505 ,  H04B10/541 ,  H04B10/5561 ,  H04B10/5563 ,  H04B10/69 ,  H04B2210/075

摘要： The invention discloses a pilot-tone signal transmission method and a system thereof. The method includes that at transmitting end, converting physical characteristics of an original pilot-tone signal, and then transmitting the converted pilot-tone signal on an optical fiber; at receiving end, anti-converting physical characteristics of the pilot-tone signal extracted from the optical fiber to recover to the said original pilot-tone signal. The system includes a source device, a target device, an electro-optical converter, optical fibers, an optic-electronic converter, a signal-extracting device, a signal-converting device and a signal-anti-converting device. With the above technical scheme, the invention overcomes carrier/noise ratio limitation, provides better SN ratio performance, and can effectively recover the pilot-tone signal to its original form even the SN ratio condition is worse.

摘要翻译： 本发明公开了一种导频音信号传输方法及其系统。 该方法包括：在发送端，转换原始导频音信号的物理特性，然后在光纤上发送转换的导频音信号; 在接收端，从光纤提取的导频音信号的抗转换物理特性恢复到所述原始导频音信号。 该系统包括源装置，目标装置，电光转换器，光纤，光电转换器，信号提取装置，信号转换装置和信号反转换装置。 利用上述技术方案，本发明克服了载波/噪声比限制，提供了更好的SN比性能，即使SN比条件较差，也可以有效地将导频信号恢复到原来的形式。

公开(公告)号：US09706214B2

公开(公告)日：2017-07-11

申请号：US12978501

申请日：2010-12-24

申请人： Yongjun Wu ,  Shyam Sadhwani ,  Daniele Terdina

发明人： Yongjun Wu ,  Shyam Sadhwani ,  Daniele Terdina

IPC分类号： H04N7/50 ,  H04N19/44 ,  H04N19/176 ,  H04N19/122 ,  H04N19/127 ,  H04N19/14 ,  H03M7/40 ,  H04N19/46 ,  H04N19/436

CPC分类号： H04N19/44 ,  H04N19/122 ,  H04N19/127 ,  H04N19/14 ,  H04N19/176 ,  H04N19/436 ,  H04N19/46

摘要： Efficient operations in image or video decoding. For example, a tool such as an image or video decoder receives and decodes encoded data for a picture in a bitstream. As part of the decoding, the tool adapts a multi-symbol lookup table to use in decoding of symbols then decodes the symbols using the multi-symbol lookup table, producing exactly correct results. The tool can also perform selectively truncated inverse frequency transforms. For a given block, the tool identifies upper horizontal and vertical frequencies among non-zero coefficients for the block and, based on the upper frequency values, selectively applies a simplified inverse frequency transform to transform coefficients for the block without hurting decoding quality. Using restart markers in the bitstream, the tool can organize multiple blocks of the picture as partitions. The tool decodes at least some of the partitions in parallel on a partition-by-partition basis using multiple processing cores.

公开(公告)号：US09648325B2

公开(公告)日：2017-05-09

申请号：US11824508

申请日：2007-06-30

申请人： Juan Carlos Arevalo Baeza ,  Eric S. Christoffersen ,  Sean M. Callahan ,  Daniel Dinu ,  Barry Friemel ,  William Chen ,  Weidong Zhao ,  Yongjun Wu

发明人： Juan Carlos Arevalo Baeza ,  Eric S. Christoffersen ,  Sean M. Callahan ,  Daniel Dinu ,  Barry Friemel ,  William Chen ,  Weidong Zhao ,  Yongjun Wu

IPC分类号： G06T1/20 ,  H04N11/02 ,  H04N11/04 ,  H04N19/91 ,  H04N19/42 ,  H04N19/436 ,  H04N19/43 ,  H04N19/44 ,  H04N19/13 ,  H04N19/16 ,  H04N19/174 ,  H04N19/112 ,  H04N19/137 ,  H04N19/593 ,  H04N19/82 ,  H04N19/89

CPC分类号： H04N19/13 ,  G06T1/20 ,  H04N19/105 ,  H04N19/112 ,  H04N19/124 ,  H04N19/137 ,  H04N19/15 ,  H04N19/159 ,  H04N19/16 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/184 ,  H04N19/31 ,  H04N19/42 ,  H04N19/43 ,  H04N19/436 ,  H04N19/44 ,  H04N19/46 ,  H04N19/51 ,  H04N19/593 ,  H04N19/61 ,  H04N19/82 ,  H04N19/89 ,  H04N19/91

摘要： Video decoding innovations for multithreading implementations and graphics processor unit (“GPU”) implementations are described. For example, for multithreaded decoding, a decoder uses innovations in the areas of layered data structures, picture extent discovery, a picture command queue, and/or task scheduling for multithreading. Or, for a GPU implementation, a decoder uses innovations in the areas of inverse transforms, inverse quantization, fractional interpolation, intra prediction using waves, loop filtering using waves, memory usage and/or performance-adaptive loop filtering. Innovations are also described in the areas of error handling and recovery, determination of neighbor availability for operations such as context modeling and intra prediction, CABAC decoding, computation of collocated information for direct mode macroblocks in B slices, reduction of memory consumption, implementation of trick play modes, and picture dropping for quality adjustment.

公开(公告)号：US08925571B2

公开(公告)日：2015-01-06

申请号：US13595123

申请日：2012-08-27

申请人： Chunhung Li ,  Yongjun Wu ,  Weimien Hsu ,  Wanhong Tan ,  Qiuyong Li

发明人： Chunhung Li ,  Yongjun Wu ,  Weimien Hsu ,  Wanhong Tan ,  Qiuyong Li

IPC分类号： E03C1/042 ,  F16K51/00

CPC分类号： E03C1/0402 ,  E03C2001/0415 ,  E03C2001/0416 ,  Y10T137/598 ,  Y10T137/6014 ,  Y10T137/9464

摘要： A fixing structure of a pull-out faucet is mounted on a platform with a fixing hole and contains a pull-out faucet including a housing, a pull-out spray head, a mixing valve, and a pipe line set; the pipe line set including a plurality of fixedly static pipe lines and a movably dynamic pipe line; a positioning device including a seat and a clamping set; the seat being fixed under the platform by the clamping set and being fixed in the fixing hole to fit with the housing, the seat including a passage set for inserting the pipe line set; wherein the passage set has a first passage for inserting the static pipe lines and a second passage for inserting the dynamic pipe line, and the first passage is spaced apart from the second passage so that the dynamic pipe line is limited in the second passage to move smoothly.

摘要翻译： 拉出龙头的固定结构安装在具有固定孔的平台上，并包含一个包括壳体，拉出喷头，混合阀和管线组的拉出龙头。 所述管线组包括多个固定静态管线和可动态管线; 定位装置，包括座椅和夹紧组件; 所述座椅通过所述夹紧组件固定在所述平台下方并且被固定在所述固定孔中以与所述壳体配合，所述座椅包括用于插入所述管线组的通道; 所述通道组具有用于插入所述静态管线的第一通道和用于插入动态管路的第二通道，并且所述第一通道与所述第二通道间隔开，使得所述第二通道中的所述动态管路被限制以移动 顺利。

公开(公告)号：US08896715B2

公开(公告)日：2014-11-25

申请号：US12704047

申请日：2010-02-11

申请人： Yongjun Wu ,  Nikola Borisov ,  Weidong Zhao ,  Shyam Sadhwani ,  Naveen Thumpudi

发明人： Yongjun Wu ,  Nikola Borisov ,  Weidong Zhao ,  Shyam Sadhwani ,  Naveen Thumpudi

IPC分类号： H04N5/228 ,  H04N5/232

CPC分类号： H04N5/23267 ,  G06T3/0093 ,  G06T7/207 ,  H04L67/10 ,  H04N5/145 ,  H04N5/23248 ,  H04N5/23254 ,  H04N21/4223 ,  H04N21/44

摘要： Video image stabilization provides better performance on a generic platform for computing devices by evaluating available multimedia digital signal processing components, and selecting the available components to utilize according to a hierarchy structure for video stabilization performance for processing parts of the video stabilization. The video stabilization has improved motion vector estimation that employs refinement motion vector searching according to a pyramid block structure relationship starting from a downsampled resolution version of the video frames. The video stabilization also improves global motion transform estimation by performing a random sample consensus approach for processing the local motion vectors, and selection criteria for motion vector reliability. The video stabilization achieves the removal of hand shakiness smoothly by real-time one-pass or off-line two-pass temporal smoothing with error detection and correction.

摘要翻译： 视频图像稳定通过评估可用的多媒体数字信号处理组件，以及根据用于处理视频稳定化的部分的视频稳定性能的层次结构来选择可利用的组件来在计算设备的通用平台上提供更好的性能。 视频稳定已经改进了运动矢量估计，其采用根据从视频帧的下采样分辨率版本开始的金字塔块结构关系的细化运动矢量搜索。 视频稳定还通过执行用于处理局部运动矢量的随机样本共享方法以及用于运动矢量可靠性的选择标准来改进全局运动变换估计。 视频稳定通过具有错误检测和校正的实时一次或离线两遍时间平滑实现平滑地去除手抖动。

公开(公告)号：US08711248B2

公开(公告)日：2014-04-29

申请号：US13035883

申请日：2011-02-25

申请人： Radhika Jandhyala ,  Yongjun Wu ,  Shijun Sun

发明人： Radhika Jandhyala ,  Yongjun Wu ,  Shijun Sun

IPC分类号： H04N5/262 ,  H04N5/228 ,  H04N5/235

CPC分类号： G06T5/50 ,  G06T7/20 ,  G06T2207/20208 ,  H04N5/2355

摘要： Techniques and tools for high dynamic range (“HDR”) image generation and rendering are described herein. In several described embodiments, images having distinct exposure levels are aligned. In particular embodiments, the alignment of a reference image to a non-reference image is based at least in part on motion vectors that are determined using covariance computations. Furthermore, in certain embodiments, saturated areas, underexposed areas, and/or moving objects are ignored or substantially ignored during the image alignment process. Moreover, in certain embodiments, a hierarchical pyramid block-based scheme is used to perform local motion estimation between the reference image and the non-reference image.

摘要翻译： 本文描述了用于高动态范围（“HDR”）图像生成和渲染的技术和工具。 在几个描述的实施例中，具有不同曝光水平的图像被对准。 在特定实施例中，参考图像与非参考图像的对准至少部分地基于使用协方差计算确定的运动矢量。 此外，在某些实施例中，饱和区域，曝光不足区域和/或运动物体在图像对准过程期间被忽略或基本上被忽略。 此外，在某些实施例中，使用基于分级金字塔块的方案来执行参考图像和非参考图像之间的局部运动估计。

公开(公告)号：US08528129B2

公开(公告)日：2013-09-10

申请号：US12958114

申请日：2010-12-01

申请人： Chunhung Li ,  Weimien Hsu ,  Yongjun Wu

发明人： Chunhung Li ,  Weimien Hsu ,  Yongjun Wu

IPC分类号： E03C1/042

CPC分类号： E03C1/0402 ,  E03C2001/0416

摘要： A fixing structure of a faucet fixed on a support plate with an opening and contains the faucet including a housing having a mouth and a through aperture; the faucet also including an inlet pipe unit; a locking member being operated to move between an engaging position and a disengaging position along the through aperture; a positioning device including a fitting seat having a bottom face, a channel defined therein to receive the inlet pipe unit of the faucet, at least one slot disposed along an outer surface thereof to slide the locking member located at the engaging position, the slot including at least one tooth and at least one retaining recess such that the locking member passes through the tooth to be retained in the retaining recess and is limited by the tooth to move so that the mouth is fixed to the fitting seat.

摘要翻译： 固定在具有开口的支撑板上的龙头的固定结构，并且包括所述龙头，所述龙头包括具有嘴和通孔的壳体; 所述龙头还包括入口管单元; 操作所述锁定构件沿着所述通孔在接合位置和分离位置之间移动; 定位装置，包括具有底面的配件座，限定在其中的通道，用于容纳所述水龙头的入口管单元;沿其外表面设置的至少一个狭槽，以使位于所述接合位置的所述锁定构件滑动，所述槽包括 至少一个齿和至少一个保持凹部，使得所述锁定构件穿过所述齿以保持在所述保持凹部中，并且被所述齿限制以使得所述口固定到所述配件座。