公开(公告)号：US07483484B2

公开(公告)日：2009-01-27

申请号：US10682316

申请日：2003-10-09

申请人： Shan Liu ,  Yeong-Taeg Kim

发明人： Shan Liu ,  Yeong-Taeg Kim

IPC分类号： H04N7/12

CPC分类号： H04N5/147 ,  G06K9/3266

摘要： A detection method and system that allows detecting an opaque logo after it has appeared in the digital video program for a short period of time, by deriving and analyzing the stochastic characteristics of the video signal along the temporal axis.

摘要翻译： 一种检测方法和系统，通过导出并分析视频信号沿着时间轴的随机特性，允许在短时间内在数字视频节目中出现不透明标志。

公开(公告)号：US20090003457A1

公开(公告)日：2009-01-01

申请号：US11768434

申请日：2007-06-26

申请人： Shan Liu ,  Anthony Vetro ,  Woo-Shik Kim

发明人： Shan Liu ,  Anthony Vetro ,  Woo-Shik Kim

IPC分类号： H04N7/26

CPC分类号： H04N19/36 ,  H04N19/105 ,  H04N19/126 ,  H04N19/134 ,  H04N19/176 ,  H04N19/184 ,  H04N19/186 ,  H04N19/196 ,  H04N19/46 ,  H04N19/463 ,  H04N19/593

摘要： A method performs inverse tone mapping of an image in a decoder. For each block of each color channel of the image the following steps are performed. A scaling factor is determined for a current block of the image by adding a predicted scaling factor for the current block to a difference between the predicted scaling factor and the scaling factor of an adjacent block. An offset value for the current block is determined by adding a predicted offset for the current block to a difference between the predicted offset value and the offset value of the adjacent block. The scaling factor and the offset value are applied to pixel intensity values of the current block to produce a mapped block in which a bit-depth of the mapped block is greater than the bit-depth of the current block.

摘要翻译： 一种方法对解码器中的图像执行逆色调映射。 对于图像的每个颜色通道的每个块，执行以下步骤。 通过将当前块的预测缩放因子添加到预测缩放因子和相邻块的缩放因子之间的差异来为图像的当前块确定缩放因子。 通过将当前块的预测偏移量加到预测偏移值和相邻块的偏移值之间的差值来确定当前块的偏移值。 缩放因子和偏移值被应用于当前块的像素强度值，以产生其中映射块的位深大于当前块的位深度的映射块。

公开(公告)号：US07409262B2

公开(公告)日：2008-08-05

申请号：US11245574

申请日：2005-10-07

申请人： Dao-Shan Liu ,  Hui Zou ,  Cheng-Yu Wang ,  Yao-Tser Liu

发明人： Dao-Shan Liu ,  Hui Zou ,  Cheng-Yu Wang ,  Yao-Tser Liu

IPC分类号： G06F19/00 ,  G05B19/4097

CPC分类号： G05B19/4097 ,  G05B2219/35087 ,  G05B2219/35216 ,  Y10T409/30112

摘要： A system for generating milling codes includes a plurality of personal computers (10), a database (14), and an application server (12). The application server, connected between the personal computers and the database, includes a circular hole handling module (125), for handling circular holes of an engineering drawing, and receiving relevant parameters of the circular holes; a non-circular hole handling module (126), for determining and handling all non-circular holes of the engineering drawing, and receiving relevant parameters of the non-circular holes; a milling path generating module (128), for generating milling paths according to the parameters of the circular holes and the non-circular holes; and a milling code generating module (129), for generating milling codes according to the milling paths. A related method for generating milling codes is also provided.

摘要翻译： 一种用于生成铣削代码的系统包括多个个人计算机（10），数据库（14）和应用服务器（12）。 连接在个人计算机和数据库之间的应用服务器包括一个圆孔处理模块（125），用于处理工程图的圆孔，并接收圆孔的相关参数; 一个非圆形孔处理模块，用于确定和处理工程图中的所有非圆形孔，并且接收非圆形孔的相关参数; 铣削路径产生模块（128），用于根据圆形孔和非圆形孔的参数产生铣削路径; 和铣削代码生成模块（129），用于根据铣削路径产生铣削代码。 还提供了用于生成铣削代码的相关方法。

公开(公告)号：US20080049845A1

公开(公告)日：2008-02-28

申请号：US11844302

申请日：2007-08-23

申请人： Shan Liu

发明人： Shan Liu

IPC分类号： H04N7/26

CPC分类号： H04N19/117 ,  H04N19/137 ,  H04N19/166 ,  H04N19/176 ,  H04N19/42 ,  H04N19/86 ,  H04N19/895

摘要： Methods and apparatus for concealing corrupted blocks of streaming data are disclosed. It is determined whether a subdivision of the streaming data is a corrupt subdivision. The corrupt subdivision is concealed using a previously reconstructed or concealed subdivision in a manner that does not require information from pairs of direct neighbor subdivisions that have not been previously reconstructed or concealed.

摘要翻译： 公开了用于隐藏流数据的损坏块的方法和装置。 确定流数据的细分是否是损坏的细分。 使用先前重建或隐藏的细分隐藏了腐败的细分，其方式不需要来自未被重建或隐藏的直接相邻子细胞的信息。

公开(公告)号：US07231099B1

公开(公告)日：2007-06-12

申请号：US11216997

申请日：2005-08-31

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

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

IPC分类号： G06K9/40 ,  H04N7/14

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

摘要： 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.

摘要翻译： 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：US20050154799A1

公开(公告)日：2005-07-14

申请号：US11016744

申请日：2004-12-21

申请人： Ya-Tsung Feng ,  Ming-Hung Chueh ,  Yu-Shan Liu ,  Yao-Jen Chang

发明人： Ya-Tsung Feng ,  Ming-Hung Chueh ,  Yu-Shan Liu ,  Yao-Jen Chang

IPC分类号： G06F3/00 ,  G06F13/00 ,  G06F13/40

CPC分类号： G06F13/4072 ,  G06F13/4004 ,  Y10T307/74 ,  Y10T307/937

摘要： A switching device for RS-232 serial port and USB serial port is adapted to simultaneously provide a RS-232 serial port and a USB serial port for a micro-processor with a single USART. The switching device can automatically switch to select either of the RS-232 serial port or the USB serial port as a main interface for communicating with other external computer facilities and related peripheries. When one of the serial ports is selected as the main communication interface to communicate with one of external computers, the other one serial port thereof still can transmit signals from the micro-processor to another computer through its transmitting data pin (TXD).

摘要翻译： 用于RS-232串行端口和USB串行端口的开关设备适用于同时为单个USART的微处理器提供RS-232串行端口和USB串行端口。 开关设备可以自动切换，选择RS-232串行端口或USB串口作为与其他外部计算机设备及相关外围设备通信的主界面。 当选择其中一个串行端口作为与外部计算机之一进行通信的主要通信接口时，其另一个串行端口仍然可以通过其发送数据引脚（TXD）将信号从微处理器传输到另一台计算机。

公开(公告)号：US20050058197A1

公开(公告)日：2005-03-17

申请号：US10661308

申请日：2003-09-12

申请人： Ligang Lu ,  Shan Liu

发明人： Ligang Lu ,  Shan Liu

IPC分类号： H04N7/12 ,  H04N7/26

CPC分类号： H04N19/40

摘要： 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.

摘要翻译： 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：US20220094957A1

公开(公告)日：2022-03-24

申请号：US17494486

申请日：2021-10-05

申请人： Guichun LI ,  Xiang LI ,  Xiaozhong XU ,  Shan LIU

发明人： Guichun LI ,  Xiang LI ,  Xiaozhong XU ,  Shan LIU

IPC分类号： H04N19/44 ,  H04N19/137 ,  H04N19/46 ,  H04N19/176 ,  H04N19/105 ,  H04N19/159 ,  H04N19/186 ,  H04N19/132 ,  H04N19/513 ,  H04N19/51 ,  H04N19/109

摘要： Aspects of the disclosure provide methods and apparatuses for video encoding/decoding. In some examples, an apparatus for video decoding includes receiving circuitry and processing circuitry. In some embodiments, the processing circuitry decodes prediction information of a current block in a current picture from a coded video bitstream. The prediction information is indicative of an inter prediction mode that signals a value associated with a motion vector difference in the coded video bitstream. The processing circuitry determines a precision for the motion vector difference based on a size of the current block, and converts the signaled value in the coded video bitstream to the motion vector difference based on the determined precision. Then, the processing circuitry determines a motion vector based on a prediction of the motion vector and the motion vector difference, and reconstructs at least a sample of the current block according to the motion vector.

公开(公告)号：US20210031880A1

公开(公告)日：2021-02-04

申请号：US16529219

申请日：2019-08-01

申请人： WEN-KUEI LIU ,  CHAO-HSUAN LIU ,  YU-CHUN LIU ,  YI-SHAN LIU

发明人： WEN-KUEI LIU ,  CHAO-HSUAN LIU ,  YU-CHUN LIU ,  YI-SHAN LIU

IPC分类号： B62M11/06 ,  B62M9/124

摘要： A transmission device for a bicycle includes a housing, a mandrel, an assembling member, a transmission assembly, a derailleur assembly and a clutch assembly. The mandrel is rotatably disposed on the housing and extends along an axial direction. The assembling member has a driving gear. The transmission assembly is rotatably disposed on the housing and engaged with the driving gear. The derailleur assembly includes a first derailleur gear and a second derailleur gear. The transmission assembly is engaged with the first derailleur gear and the second derailleur gear. The clutch assembly includes a clutch member.

公开(公告)号：US09788019B2

公开(公告)日：2017-10-10

申请号：US13156552

申请日：2011-06-09

申请人： Shan Liu ,  Zhi Zhou ,  Shaw-Min Lei

发明人： Shan Liu ,  Zhi Zhou ,  Shaw-Min Lei

IPC分类号： H04N11/02 ,  H04N19/96 ,  H04N19/176 ,  H04N19/70 ,  H04N19/119

CPC分类号： H04N19/96 ,  H04N19/119 ,  H04N19/176 ,  H04N19/70

摘要： Transform unit (TU) partition method and apparatus depending on the coding unit (CU) partition and prediction unit (PU) partition are disclosed. In one embodiment, the maximum TU size is restricted to the minimum of PU width and height, except for a 2N×2N coding unit with the 2N×2N partition type. In another embodiment, the maximum TU size equals to maximum of PU width and height, and the minimum TU size equals to minimum of the PU width and height, except for a 2N×2N coding unit with the 2N×2N partition type. In yet another embodiment, the maximum TU size is equal to the maximum of PU width and height, and the minimum TU size is equal to the minimum of PU width and height except for a 2N×2N CU with 2N×2N partition type.