公开(公告)号：US08327233B2

公开(公告)日：2012-12-04

申请号：US12608457

申请日：2009-10-29

申请人： Yanbo Long ,  Xianyi Chen ,  Pulin Wang

发明人： Yanbo Long ,  Xianyi Chen ,  Pulin Wang

IPC分类号： H03M13/00

CPC分类号： H04L1/0045

摘要： Forward Error Correction (FEC) coding is performed on data packets to generate verifying packets; corresponding information independent of a packet sequence number (SN) and denoting a corresponding relation between the data packets and the verifying packets is carried in the data packets, or in the verifying packets, or in the data packets and the verifying packets; the data packets and the verifying packets are transmitted by using a protocol based on a User Datagram Protocol (UDP). A method for receiving data packets and devices for transmitting and receiving data packets are further described. Thus, a receiving terminal correctly can recover lost data packets after a relay device modifies the packet SN.

摘要翻译： 对数据包执行前向纠错（FEC）编码，以生成验证数据包; 在数据包或验证包中，数据包和验证包中承载与数据包序列号（SN）无关的表示数据包和验证包之间的对应关系的相应信息; 通过使用基于用户数据报协议（UDP）的协议来发送数据分组和验证分组。 进一步描述用于接收数据分组的方法和用于发送和接收数据分组的装置。 因此，接收终端正确地可以在中继设备修改分组SN之后恢复丢失的数据分组。

公开(公告)号：US08860776B2

公开(公告)日：2014-10-14

申请号：US13090343

申请日：2011-04-20

申请人： Yanbo Long ,  Pulin Wang ,  Xiaoxia Wei ,  Wuzhou Zhan ,  Dongqi Wang

发明人： Yanbo Long ,  Pulin Wang ,  Xiaoxia Wei ,  Wuzhou Zhan ,  Dongqi Wang

IPC分类号： H04N7/14 ,  H04L29/06 ,  H04L12/18 ,  H04N7/15

CPC分类号： H04L12/1827 ,  H04L65/403 ,  H04N7/152

摘要： A conference terminal, a conference server, a conference system, and a data processing method are provided. The conference terminal includes: a mark obtaining module, configured to obtain a mark data signal; an image obtaining module, configured to obtain an image data signal; a superimposing module, configured to superimpose the mark data signal onto the image data signal to generate a hybrid image data signal; and an outputting module, configured to output the hybrid image data signal. The present invention improves the interactivity between videoconference users and the discussion efficiency.

摘要翻译： 提供会议终端，会议服务器，会议系统和数据处理方法。 会议终端包括：标记获取模块，用于获得标记数据信号; 图像获取模块，被配置为获得图像数据信号; 叠加模块，被配置为将所述标记数据信号叠加到所述图像数据信号上以产生混合图像数据信号; 以及输出模块，用于输出混合图像数据信号。 本发明改善了视频会议用户之间的交互性和讨论效率。

公开(公告)号：US08334925B2

公开(公告)日：2012-12-18

申请号：US12875540

申请日：2010-09-03

申请人： Xiaoxia Wei ,  Yanbo Long

发明人： Xiaoxia Wei ,  Yanbo Long

IPC分类号： H04N5/238 ,  H04N9/73

CPC分类号： H04N5/2351 ,  G06T5/009 ,  G06T5/40 ,  G06T2207/10016 ,  G06T2207/20008 ,  H04N5/243

摘要： A method and an apparatus for processing images are disclosed. The method includes: generating an image histogram of an image to be processed; judging whether the image to be processed requires backlight compensation according to the image histogram; if the image to be processed requires backlight compensation, determining a first luminance boundary value A used for deciding whether to perform backlight compensation and a second luminance boundary value C used for deciding whether to perform positive or negative backlight compensation; and performing backlight compensation for the image to be processed according to the first luminance boundary value A and the second luminance boundary value C. The method is simple and universally applicable. After backlight compensation, the contrast of the image is high, and the image is free from background overexposure and image layering. The image photographed in a backlight environment is processed properly.

摘要翻译： 公开了一种用于处理图像的方法和装置。 该方法包括：生成要处理的图像的图像直方图; 根据图像直方图判断要处理的图像是否需要背光补偿; 如果要处理的图像需要背光补偿，确定用于决定是否执行背光补偿的第一亮度边界值A和用于决定是否执行正背光补偿的负值的第二亮度边界值C. 并根据第一亮度边界值A和第二亮度边界值C对待处理的图像执行背光补偿。该方法简单且普遍适用。 背光补偿后，图像的对比度很高，图像没有背景过度曝光和图像分层。 在背光环境中拍摄的图像被正确处理。

公开(公告)号：US20110261151A1

公开(公告)日：2011-10-27

申请号：US13073068

申请日：2011-03-28

申请人： Xiangjiong WANG ,  Yanbo Long

发明人： Xiangjiong WANG ,  Yanbo Long

IPC分类号： H04N7/15 ,  H04M3/42

CPC分类号： H04N7/152 ,  H04L12/1827 ,  H04N7/15 ,  H04N21/23608 ,  H04N21/2365 ,  H04N21/2389 ,  H04N21/25808 ,  H04N21/4347 ,  H04N21/4385 ,  H04N21/4788

摘要： The present invention discloses a video processing method, an audio processing method, a video processing apparatus, an audio processing apparatus, a Multipoint Control Unit (MCU), and a videoconference system. The video processing method includes: obtaining N video streams sent by a first conference terminal on N channels; determining a second conference terminal that interacts with the first conference terminal, where the second conference terminal supports L video streams, and L is different from N; adding N-channel video information carried in the N video streams to L video streams; and transmitting the L video streams to the second conference terminal. The embodiments of the present invention implement interoperability between the sites that support different numbers of media streams, for example, telepresence sites, dual-stream sites, and single-stream sites, thus reducing the construction cost of the entire network.

摘要翻译： 本发明公开了视频处理方法，音频处理方法，视频处理装置，音频处理装置，多点控制单元（MCU）和视频会议系统。 视频处理方法包括：获得由N个信道上的第一会议终端发送的N个视频流; 确定与第一会议终端交互的第二会议终端，其中第二会议终端支持L个视频流，并且L与N不同; 将N个视频流中携带的N信道视频信息添加到L个视频流; 以及将所述L个视频流发送到所述第二会议终端。 本发明的实施例实现了支持不同数量的媒体流的站点之间的互操作性，例如，远程呈现站点，双流站点和单流站点，从而降低了整个网络的建设成本。

公开(公告)号：US20110013048A1

公开(公告)日：2011-01-20

申请号：US12875540

申请日：2010-09-03

申请人： Xiaoxia Wei ,  Yanbo Long

发明人： Xiaoxia Wei ,  Yanbo Long

IPC分类号： H04N9/68 ,  G06K9/36

CPC分类号： H04N5/2351 ,  G06T5/009 ,  G06T5/40 ,  G06T2207/10016 ,  G06T2207/20008 ,  H04N5/243

摘要： A method and an apparatus for processing images are disclosed. The method includes: generating an image histogram of an image to be processed; judging whether the image to be processed requires backlight compensation according to the image histogram; if the image to be processed requires backlight compensation, determining a first luminance boundary value A used for deciding whether to perform backlight compensation and a second luminance boundary value C used for deciding whether to perform positive or negative backlight compensation; and performing backlight compensation for the image to be processed according to the first luminance boundary value A and the second luminance boundary value C. The method is simple and universally applicable. After backlight compensation, the contrast of the image is high, and the image is free from background overexposure and image layering. The image photographed in a backlight environment is processed properly.

摘要翻译： 公开了一种用于处理图像的方法和装置。 该方法包括：生成要处理的图像的图像直方图; 根据图像直方图判断要处理的图像是否需要背光补偿; 如果要处理的图像需要背光补偿，确定用于决定是否执行背光补偿的第一亮度边界值A和用于决定是否执行正背光补偿的负值的第二亮度边界值C. 并根据第一亮度边界值A和第二亮度边界值C对待处理的图像执行背光补偿。该方法简单且普遍适用。 背光补偿后，图像的对比度很高，图像没有背景过度曝光和图像分层。 在背光环境中拍摄的图像被正确处理。