Adaptive wireless video transmission systems and methods
    43.
    发明授权
    Adaptive wireless video transmission systems and methods 有权
    自适应无线视频传输系统和方法

    公开(公告)号:US08902996B2

    公开(公告)日:2014-12-02

    申请号:US13274081

    申请日:2011-10-14

    摘要: A method for providing error-resilient video content may include receiving video data reflective of multiple video frames and encoding the video data to generate a plurality of packets. The method may also include transmitting the first group of packets to at least two receivers and receiving feedback information regarding receiving status of respective ones of the plurality of packets, the feedback information being indicative of packets not received correctly. The method may further include examining error indications based on the feedback information and implementing a first error-correction policy if a variation in the error indications among the at least two receivers is below a first error threshold and a second error-correction policy if the variation is above the first error threshold. At least one of the first and second error-correction policies may include transmitting or retransmitting at least one packet using a different coding scheme.

    摘要翻译: 用于提供错误弹性视频内容的方法可以包括接收反映多个视频帧的视频数据,并对视频数据进行编码以生成多个分组。 该方法还可以包括将第一组分组发送到至少两个接收机,并且接收关于多个分组中的相应分组的接收状态的反馈信息,所述反馈信息指示未被正确接收的分组。 该方法还可以包括:如果如果变化中的至少两个接收器之间的误差指示的变化低于第一误差阈值和第二误差校正策略,则基于反馈信息来检查错误指示并实施第一纠错策略 高于第一个错误阈值。 第一和第二纠错策略中的至少一个可以包括使用不同的编码方案来发送或重传至少一个分组。

    Video encoding apparatus and video decoding apparatus
    48.
    发明申请
    Video encoding apparatus and video decoding apparatus 有权
    视频编码装置和视频解码装置

    公开(公告)号:US20050084016A1

    公开(公告)日:2005-04-21

    申请号:US10971309

    申请日:2004-10-25

    CPC分类号: H04N19/59 H04N19/20

    摘要: An alpha-map encoding apparatus includes a first down-sampling circuit (21) for down-sampling an alpha-map signal which represents the shape of an object and the position in the frame of the object at a down-sampling ratio based on size conversion ratio information, an up-sampling circuit (23) for up-sampling the alpha-map signal at an up-sampling ratio based on size conversion ratio information given to restore the down-sampled-alpha-map signal to an original size, and outputting a local decoded alpha-map signal, a motion estimation/compensation circuit (25) for generating a motion estimation/compensation signal on the basis of the previous decoded video signal and a motion vector signal, a second down-sampling circuit (26) for down-sampling the motion estimation/compensation signal at the down-sampling ratio, a binary image encoder for encoding the alpha-map signal down-sampled by the first down-sampling circuit to a binary image in accordance with the motion estimation/compensation signal down-sampled by the second down-sampling circuit, and outputting an encoded binary image signal, and a multiplexer for multiplexing and outputting the encoded binary image signal and the up-sampling ratio information.

    摘要翻译: 阿尔法 - 地图编码装置包括:第一下采样电路(21),用于以基于尺寸的下采样比下降采样表示对象的形状和对象的帧中的位置的阿尔法 - 转换比信息,上采样电路(23),用于根据给定的大小转换比信息以上采样比对上述阿尔法 - 映射信号进行采样,以将下采样的α-地图信号恢复到原始大小; 并输出局部解码的阿尔法 - 映射信号,基于先前解码的视频信号和运动矢量信号产生运动估计/补偿信号的运动估计/补偿电路(25),第二下采样电路(26) ),用于以下采样比对运动估计/补偿信号进行下采样;二进制图像编码器,用于根据运动估计/补偿信号将由第一下采样电路下采样的阿尔法 - 映射信号编码为二进制图像; compe 由第二下采样电路进行下采样的信号信号,并输出编码的二进制图像信号,以及多路复用器,用于复用并输出编码的二进制图像信号和上采样比信息。

    Image processing system that internally transmits lowest-resolution image suitable for image processing
    49.
    发明申请
    Image processing system that internally transmits lowest-resolution image suitable for image processing 有权
    内部传输适合图像处理的最低分辨率图像的图像处理系统

    公开(公告)号:US20050041873A1

    公开(公告)日:2005-02-24

    申请号:US10678460

    申请日:2003-10-03

    申请人: Yasuhiro li

    发明人: Yasuhiro li

    摘要: In one embodiment, an image processing system includes a first computer that processes image and a second computer connected with the first computer via a network. The second computer transmits the image to the first computer via the network after adjusting the resolution of the image to the lowest resolution determined by the first computer so that the first computer can process the transmitted image. Accordingly, the first computer can process the transmitted image at a satisfactory level, and at the same time, the image processing system can reduce network traffic therein.

    摘要翻译: 在一个实施例中,图像处理系统包括处理图像的第一计算机和经由网络与第一计算机连接的第二计算机。 在将图像的分辨率调整到由第一计算机确定的最低分辨率之后,第二计算机经由网络将图像发送到第一计算机,使得第一计算机可以处理所发送的图像。 因此,第一计算机可以以令人满意的级别处理所发送的图像,并且同时,图像处理系统可以减少其中的网络流量。

    Image pickup system with separable/attachable image pickup device and
display device
    50.
    发明授权
    Image pickup system with separable/attachable image pickup device and display device 失效
    具有可分离/可连接的图像拾取装置和显示装置的摄像系统

    公开(公告)号:US6148141A

    公开(公告)日:2000-11-14

    申请号:US841564

    申请日:1997-04-30

    摘要: An image pickup system comprising an image pickup device including an image pickup element for pickup the image of an object and outputting image data, a compression encoding circuit for effecting compression encoding of the image data, a wireless transmission circuit for modulating the compression encoded image data and transmitting the data to a wireless transmission channel, and a first connector adapted to be electrically and mechanically connected, in detachable manner, to a display device for displaying the image picked-up by the image pickup element and to transmit the image data from the image pickup element; and a display device including a wireless reception circuit for receiving the transmitted image data from the wireless transmission channel and demodulating the image data, an expansion circuit for expanding the demodulated image data to obtain first image data, a second connector adapted to be electrically and mechanically connected, in a detachable manner, to the first connector and to receive second image data from the image pickup device, a signal processing circuit for selectively receiving the first or second image data and processing the received image data to output an image signal of a predetermined format, and a monitor for displaying the image signal of the predetermined format.

    摘要翻译: 一种图像拾取系统,包括图像拾取装置,包括用于拾取对象的图像并输出图像数据的图像拾取元件,用于对图像数据进行压缩编码的压缩编码电路,用于调制压缩编码图像数据的无线传输电路 以及将数据发送到无线传输通道,以及适于以可拆卸的方式电气和机械连接的第一连接器,用于显示由图像拾取元件拾取的图像的显示装置,并且将图像数据从 图像拾取元件; 以及显示装置,包括:无线接收电路,用于从无线传输信道接收发送的图像数据并解调图像数据;扩展电路,用于扩展解调的图像数据以获得第一图像数据;第二连接器,适于电气和机械 以可拆卸的方式连接到第一连接器并从图像拾取装置接收第二图像数据;信号处理电路,用于选择性地接收第一或第二图像数据并处理接收到的图像数据以输出预定的图像信号 格式,以及用于显示预定格式的图像信号的监视器。