公开(公告)号：US08186418B2

公开(公告)日：2012-05-29

申请号：US12894998

申请日：2010-09-30

Applicant: Shan Liu ,  Jon Conrad Schaeffer ,  Ganjiang Feng ,  Stephen Joseph Balsone

Inventor： Shan Liu ,  Jon Conrad Schaeffer ,  Ganjiang Feng ,  Stephen Joseph Balsone

IPC: B22D27/00 ,  B22D25/00 ,  B22D27/04

CPC classification number: B22D27/045

Abstract: An apparatus and method for casting an alloy using a unidirectional casting technique. The apparatus includes a mold adapted to contain a molten quantity of an alloy, a primary heating zone adapted to heat the mold and the molten alloy therein to a temperature above the liquidus temperature of the alloy, a cooling zone adapted to cool the mold and molten alloy therein to a temperature below the solidus temperature of the alloy and thereby yield the unidirectionally-solidified casting, and an insulation zone between the primary heating zone and the cooling zone. The apparatus also has a secondary heating zone separated from the insulation zone by the primary heating zone. The secondary heating zone maintains the mold and the molten alloy therein at a temperature below the liquidus temperature of the alloy. The temperatures within the primary and secondary heating zones are individually set and controlled.

Abstract translation: 一种使用单向铸造技术铸造合金的装置和方法。 该装置包括适于容纳熔融量的合金的模具，适于将模具和其中的熔融合金加热到高于合金液相线温度的温度的主加热区，适于冷却模具和熔融的冷却区 合金的温度低于合金的固相线温度，从而产生单向凝固的铸造，以及主加热区和冷却区之间的绝缘区。 该装置还具有通过主加热区与绝缘区隔开的二次加热区。 二次加热区在低于合金液相线温度的温度下保持模具和熔融合金。 初级加热区和二次加热区内的温度可单独设定和控制。

公开(公告)号：US20120128067A1

公开(公告)日：2012-05-24

申请号：US13012811

申请日：2011-01-25

Applicant: Shan Liu ,  Yu-Wen Huang ,  Yung-Chang Chang ,  Shaw-Min Lei

Inventor： Shan Liu ,  Yu-Wen Huang ,  Yung-Chang Chang ,  Shaw-Min Lei

IPC: H04N7/12

CPC classification number: H04N19/177 ,  H04N19/119 ,  H04N19/122 ,  H04N19/159 ,  H04N19/176 ,  H04N19/70 ,  H04N19/96

Abstract: An apparatus and method for video coding and decoding with constrained PU partition are disclosed. In the High Efficient Video Coding (HEVC) system, rate-distortion function or other performance criterion usually is evaluated for various CU partition and PU partition during the encoding process in order to select a configuration with best possible performance. The PU design in the current HEVC development results in some redundancy that causes rate-distortion function or other performance criterion repeatedly evaluated for same PU configuration. Accordingly, constrained PU partition is developed to eliminate or reduce the redundancy in processing. Furthermore, necessary syntax to convey the information related to constrained PU partition between an encoder and a decoder is developed. Systems embodying the present invention has been shown to result in sizeable reduction in encoding and decoding time while the performance in terms of RD-rate remains approximately the same or slightly higher than a conventional HEVC system.

Abstract translation: 公开了一种用于具有约束PU分区的视频编码和解码的装置和方法。 在高效视频编码（HEVC）系统中，通常在编码过程中针对各种CU分区和PU分区评估速率失真函数或其他性能标准，以选择具有最佳性能的配置。 在当前HEVC开发中的PU设计导致一些冗余，导致对相同PU配置重复评估的速率失真功能或其他性能标准。 因此，开发了约束PU分区以消除或减少处理中的冗余。 此外，开发了在编码器和解码器之间传送与约束PU分区有关的信息的必要语法。 已经显示体现本发明的系统导致编码和解码时间的相当大的降低，而在RD速率方面的性能保持与常规HEVC系统大致相同或略高。

公开(公告)号：US20120069139A1

公开(公告)日：2012-03-22

申请号：US13303325

申请日：2011-11-23

Applicant: Andrea Basso ,  Eric Cosatto ,  David Crawford Goibbon ,  Hans Peter Graf ,  Shan Liu

Inventor： Andrea Basso ,  Eric Cosatto ,  David Crawford Goibbon ,  Hans Peter Graf ,  Shan Liu

IPC: H04N7/14

CPC classification number: G06K9/00281 ,  G06F3/012 ,  G06K9/00228 ,  G06K9/2027 ,  G06T7/246 ,  G06T15/50 ,  G06T17/00 ,  G06T2200/08 ,  G06T2207/10152 ,  G06T2207/30201 ,  H04N7/147 ,  H04N7/15

Abstract: A method of improving the lighting conditions of a real scene or video sequence. Digitally generated light is added to a scene for video conferencing over telecommunication networks. A virtual illumination equation takes into account light attenuation, lambertian and specular reflection. An image of an object is captured, a virtual light source illuminates the object within the image. In addition, the object can be the head of the user. The position of the head of the user is dynamically tracked so that an three-dimensional model is generated which is representative of the head of the user. Synthetic light is applied to a position on the model to form an illuminated model.

Abstract translation: 一种改善真实场景或视频序列的照明条件的方法。 数字生成的光被添加到通过电信网络进行视频会议的场景中。 虚拟照明方程考虑了光衰减，朗伯和镜面反射。 捕获对象的图像，虚拟光源照亮图像内的对象。 另外，对象可以是用户的头。 动态跟踪用户头部的位置，从而生成代表用户头部的三维模型。 将合成光应用于模型上的位置以形成照明模型。

公开(公告)号：US08086066B2

公开(公告)日：2011-12-27

申请号：US12877644

申请日：2010-09-08

Applicant: Andrea Basso ,  Eric Cosatto ,  David Crawford Gibbon ,  Hans Peter Graf ,  Shan Liu

Inventor： Andrea Basso ,  Eric Cosatto ,  David Crawford Gibbon ,  Hans Peter Graf ,  Shan Liu

IPC: G06K9/40 ,  G06K9/00 ,  H04N7/14

CPC classification number: G06K9/00281 ,  G06F3/012 ,  G06K9/00228 ,  G06K9/2027 ,  G06T7/246 ,  G06T15/50 ,  G06T17/00 ,  G06T2200/08 ,  G06T2207/10152 ,  G06T2207/30201 ,  H04N7/147 ,  H04N7/15

Abstract: A method of improving the lighting conditions of a real scene or video sequence. Digitally generated light is added to a scene for video conferencing over telecommunication networks. A virtual illumination equation takes into account light attenuation, lambertian and specular reflection. An image of an object is captured, a virtual light source illuminates the object within the image. In addition, the object can be the head of the user. The position of the head of the user is dynamically tracked so that an three-dimensional model is generated which is representative of the head of the user. Synthetic light is applied to a position on the model to form an illuminated model.

Abstract translation: 一种改善真实场景或视频序列的照明条件的方法。 数字生成的光被添加到通过电信网络进行视频会议的场景中。 虚拟照明方程考虑了光衰减，朗伯和镜面反射。 捕获对象的图像，虚拟光源照亮图像内的对象。 另外，对象可以是用户的头。 动态跟踪用户头部的位置，从而生成代表用户头部的三维模型。 将合成光应用于模型上的位置以形成照明模型。

公开(公告)号：US07876257B2

公开(公告)日：2011-01-25

申请号：US12110834

申请日：2008-04-28

Applicant: Anthony Vetro ,  Shan Liu ,  Jian Lou ,  Stephen R. Burgess

Inventor： Anthony Vetro ,  Shan Liu ,  Jian Lou ,  Stephen R. Burgess

IPC: G01S13/90

CPC classification number: G01S13/90 ,  G01S7/003 ,  H03M7/30 ,  H03M7/4006

Abstract: A method compresses synthetic aperture radar (SAR) data by sampling the SAR data into blocks and transforming each block to a corresponding block of transform coefficients. Each block of transform coefficient is quantized according to a quantization parameter to obtain a corresponding block of quantized transform coefficients, which are demultiplexed into sets of blocks of quantized transform coefficients. The quantized transform coefficients in the blocks in each set are arithmetically encoding in parallel according to a probability model to produce an intermediate bitstream for each set of blocks. The encoding of the quantized transform coefficients of one block is independent of the quantized transform coefficients of a successive block. The intermediate of bitstreams are then multiplexed to a compressed bitstream, which can be transmitted, or stored, for subsequent decoding to construct an SAR image.

Abstract translation: 一种方法通过将SAR数据采样到块中并将每个块变换成相应的变换系数块来压缩合成孔径雷达（SAR）数据。 根据量化参数对变换系数的每个块进行量化，以获得相应的量化变换系数块，其被解复用为量化变换系数块集合。 每组中块中的量化变换系数根据概率模型并行进行算术编码，以产生每组块的中间比特流。 一个块的量化变换系数的编码与连续块的量化变换系数无关。 然后将比特流的中间复用到可以被发送或存储的压缩比特流，以便后续解码以构建SAR图像。

公开(公告)号：US20080112483A1

公开(公告)日：2008-05-15

申请号：US12016049

申请日：2008-01-17

Applicant: Ligang Lu ,  Shan Liu

Inventor： Ligang Lu ,  Shan Liu

IPC: H04N7/12

CPC classification number: H04N19/40

Abstract: A video transcoding method is provided for transcoding a first signal stream compressed by a first coding scheme to a second signal stream compressed by a second coding scheme. The method employs an adaptive frame rate and a joint temporal-spatial rate control technique, such that the overall quality of compressed MPEG video can be significantly enhanced when the transcoding is controlled in the joint temporal (picture or frame rate) and spatial (quantization) domains. One embodiment considers transcoding from high bit rate video with larger image size (e.g. 4CIF/4SIF, CIF) coded by one coding technique, e.g., MPEG-2 to a lower bit rate video with smaller image size (e.g. CIF, QCIF) coded by the same or another coding technique, e.g., MPEG-4.

Abstract translation: 提供了一种视频转码方法，用于将由第一编码方案压缩的第一信号流转码为由第二编码方案压缩的第二信号流。 该方法采用自适应帧速率和联合时空速率控制技术，使得当在联合时间（图像或帧速率）和空间（量化）控制中进行代码转换时，可以显着增强压缩MPEG视频的总体质量， 域名 一个实施例考虑通过一种编码技术（例如MPEG-2）将较大图像大小（例如4CIF / 4SIF，CIF）的高比特率视频代码转换为具有较小图像大小的较低比特率视频（例如，CIF，QCIF），其由 相同或另一种编码技术，例如MPEG-4。

公开(公告)号：US07356084B2

公开(公告)日：2008-04-08

申请号：US10682315

申请日：2003-10-09

Applicant: Shan Liu ,  Yeong-Taeg Kim

Inventor： Shan Liu ,  Yeong-Taeg Kim

IPC: H04N7/18

CPC classification number: H04N19/137 ,  G06K9/325 ,  H04N19/17 ,  H04N19/87

Abstract: A method and system for sensing disappearance of the previously detected logos in noisy digital video signals. When a video program starts, a short period of time is allowed to initially detect the existence and the location of the logo within the incoming video frames. Once the logo is detected and a logo map is generated, logo tracking senses whether the logo remains in, or disappears from, the video frames. If the logo moves or (partially) changes its intensity, color, pattern, etc., it will be sensed as having disappeared altogether.

Abstract translation: 一种用于在噪声数字视频信号中感测先前检测到的标识消失的方法和系统。 当视频节目开始时，允许短时间来初始地检测在输入视频帧内的标识的存在和位置。 一旦检测到徽标，并且生成了标志图，标识跟踪就会检测标识是否保留在视频帧中或从视频帧中消失。 如果标志移动或（部分地）改变它的强度，颜色，图案等，它将被感觉到完全消失。

公开(公告)号：US20050078223A1

公开(公告)日：2005-04-14

申请号：US10682315

申请日：2003-10-09

Applicant: Shan Liu ,  Yeong-Taeg Kim

Inventor： Shan Liu ,  Yeong-Taeg Kim

IPC: H04N7/025 ,  G06K9/32 ,  H04N5/14 ,  H04N7/26

CPC classification number: H04N19/137 ,  G06K9/325 ,  H04N19/17 ,  H04N19/87

Abstract: A method and system for sensing disappearance of the previously detected logos in noisy digital video signals. When a video program starts, a short period of time is allowed to initially detect the existence and the location of the logo within the incoming video frames. Once the logo is detected and a logo map is generated, logo tracking senses whether the logo remains in, or disappears from, the video frames. If the logo moves or (partially) changes its intensity, color, pattern, etc., it will be sensed as having disappeared altogether.

Abstract translation: 一种用于在噪声数字视频信号中感测先前检测到的标识消失的方法和系统。 当视频节目开始时，允许短时间来初始地检测在输入视频帧内的标识的存在和位置。 一旦检测到徽标，并且生成了标志图，标识跟踪就会检测标识是否保留在视频帧中或从视频帧中消失。 如果标志移动或（部分地）改变它的强度，颜色，图案等，它将被感觉到完全消失。

公开(公告)号：US09525884B2

公开(公告)日：2016-12-20

申请号：US12978490

申请日：2010-12-24

Applicant: Yu-Wen Huang ,  Ching-Yeh Chen ,  Chih-Ming Fu ,  Chih-Wei Hsu ,  Shan Liu ,  Shaw-Min Lei

Inventor： Yu-Wen Huang ,  Ching-Yeh Chen ,  Chih-Ming Fu ,  Chih-Wei Hsu ,  Shan Liu ,  Shaw-Min Lei

IPC: H04N19/86 ,  H04N19/70 ,  H04N19/436 ,  H04N19/42 ,  H04N19/174 ,  H04N19/117 ,  H04N19/136 ,  H04N19/82 ,  H04N19/13 ,  H04N7/26 ,  H04N19/115 ,  H04N19/61

CPC classification number: H04N19/439 ,  H04N19/115 ,  H04N19/117 ,  H04N19/136 ,  H04N19/174 ,  H04N19/436 ,  H04N19/61 ,  H04N19/70 ,  H04N19/82 ,  H04N19/86

Abstract: An apparatus and method for video coding having intra-slice deblocking, intra-slice adaptive loop filter, and intra-slice adaptive offset are disclosed. In a video coding system, a picture is often divided into slices and each slice is independently processed so that errors or missing data from one slice cannot propagate to any other slice within the picture. In the recent high efficiency video coding (HEVC) development, deblock filtering (DF), adaptive loop filter (ALF) and adaptive offset (AO) may be applied to reconstructed slices. When the processing is applied across slice boundaries, it may rely on pixels outside the current slice and cause dependency of the current slice on other slice(s). Consequently, the DF/ALF/AO processing on a reconstructed slice may have to wait until the reconstructed slices that it is dependent from complete the DF/ALF/AO processing. To overcome the slice boundary issue, intra-slice DF/ALF/AO is developed that does not rely on any pixel outside the currently slice. An optional slice boundary filter may be applied to slice boundaries after all slices are processed by the intra-slice DF/ALF/AO.

Abstract translation: 公开了一种具有片内解块，片内自适应环路滤波器和片内自适应偏移的视频编码的装置和方法。 在视频编码系统中，图像通常被分成片，并且每个片被独立地处理，使得来自一个片的错误或丢失的数据不能传播到图片内的任何其他片。 在最近的高效率视频编码（HEVC）开发中，解块滤波（DF），自适应环路滤波器（ALF）和自适应偏移（AO）可以应用于重构的片段。 当跨越切片边界应用处理时，它可以依赖于当前切片外部的像素，并且导致当前切片对其他切片的依赖。 因此，在重构的切片上的DF / ALF / AO处理可能必须等待直至重构的切片依赖于完成DF / ALF / AO处理。 为了克服切片边界问题，开发了片内DF / ALF / AO，其不依赖于当前切片之外的任何像素。 在片内DF / ALF / AO处理所有片段之后，可选择的片边界滤波器可应用于片边界。

公开(公告)号：US09363511B2

公开(公告)日：2016-06-07

申请号：US13810205

申请日：2012-08-28

Applicant: Ximin Zhang ,  Shan Liu

Inventor： Ximin Zhang ,  Shan Liu

IPC: H04N19/50 ,  H04N19/463 ,  H04N19/593 ,  H04N19/11 ,  H04N7/32 ,  H04N7/26 ,  H04N19/61

CPC classification number: H04N19/593 ,  H04N19/11 ,  H04N19/463 ,  H04N19/50 ,  H04N19/61

Abstract: A method and apparatus for Intra prediction mode encoding or decoding based on multi-level most probable modes (MPMs) are disclosed. In one embodiment according to the present invention, the method and apparatus for encoding or decoding Intra prediction mode for 4×4 prediction unit (PU) use 19 Intra mode candidates to have full directional coverage or 35 Intra mode candidates as used by 8×8, 16×16 and 32×32 PUs. In another embodiment of the present invention, three MPMs are used to code the Intra modes. Various methods to derive the three MPMs based on the Intra modes of neighboring blocks are disclosed. In yet another embodiment of the present invention, the coding method for the remaining modes comprises fixed length coding. In addition, variable length coding for the remaining modes are also disclosed.

Abstract translation: 公开了一种基于多级最可能模式（MPM）的帧内预测模式编码或解码的方法和装置。 在根据本发明的一个实施例中，用于编码或解码用于4×4预测单元（PU）的帧内预测模式的方法和装置使用19个模式内候选以具有全方位覆盖或35×8模式候选，如8×8 ，16×16和32×32 PU。 在本发明的另一实施例中，使用三个MPM来编码内部模式。 公开了基于相邻块的帧内模式导出三个MPM的各种方法。 在本发明的另一个实施例中，其余模式的编码方法包括固定长度编码。 此外，还公开了其余模式的可变长度编码。