Video transmission system, video transmission device, video reception device, and video transmission method
    11.
    发明申请
    Video transmission system, video transmission device, video reception device, and video transmission method 失效
    视频传输系统,视频传输设备,视频接收设备和视频传输方式

    公开(公告)号:US20050175084A1

    公开(公告)日:2005-08-11

    申请号:US10514440

    申请日:2004-02-20

    摘要: A video transmission system, a video transmitting apparatus, a video receiving apparatus, and a video transmission method whereby, when a plurality of terminals whose characteristics differ receive video simultaneously, each terminal can receive video with quality appropriate for that terminal. In this system, a video transmitting apparatus (100) divides layered-coded data by quality and bit rate by means of a channel division section (106), and transmits data on separate channels from a video transmitting section (108) after adding priorities calculated by a priority calculation section (112). Video transmitting apparatus (100) also groups channels by quality and calculates a group list by means of a group list calculation section (114), and transmits this group list from a group list transmitting section (116). A video receiving apparatus (150) determines reception channels by means of a reception channel determination section (158) using input priority quality and a received group list, and receives the determined channels by means of a video receiving section (160).

    摘要翻译: 视频传输系统,视频发送设备,视频接收设备和视频传输方法,其中当特征不同的多个终端同时接收视频时,每个终端可以接收符合该终端的质量的视频。 在该系统中,视频发送装置(100)通过信道分割部(106)按照质量和比特率划分分层编码数据,并且在添加了计算出的优先次序之后,从视频发送部(108)向不同的信道发送数据 通过优先级计算部分(112)。 视频发送装置(100)还通过质量分组信道,并通过组列表计算部(114)计算组列表,并从组列表发送部(116)发送该组列表。 视频接收装置(150)使用输入的优先级质量和接收的组列表,通过接收信道确定部分(158)确定接收信道,并且通过视频接收部分(160)接收所确定的信道。

    Device switching system, and sender and distribution destination device
    13.
    发明授权
    Device switching system, and sender and distribution destination device 有权
    设备交换系统,发送方和发布目的地设备

    公开(公告)号:US08179958B2

    公开(公告)日:2012-05-15

    申请号:US11666608

    申请日:2006-02-08

    摘要: When a switching target device receives a media output indication from a sender device, a switch connects with contact B, which causes all image data stored in an extended media buffer to be inputted in a decoder, starting from the first frame (which is an I-frame) of the image data. The decoder decodes the image data, starting from the I-frame, and stores a reconstructed image in a reconstructed-image buffer. A reconstructed image required for decoding video picture data outputted from a media buffer is held in the reconstructed-image buffer. Thus, when device switching occurs, the decoder can immediately start decoding regardless of whether video picture data inputted from the media buffer is an intraframe.

    摘要翻译: 当切换目标设备从发送者设备接收到媒体输出指示时,交换机与联系人B连接,这使得存储在扩展媒体缓冲器中的所有图像数据从第一帧(即I -frame)的图像数据。 解码器从I帧开始解码图像数据,并将重建的图像存储在重构图像缓冲器中。 将从媒体缓冲器输出的视频图像数据解码所需的重构图像保存在重构图像缓冲器中。 因此,当设备切换发生时,无论从媒体缓冲器输入的视频图像数据是否是帧内,解码器都可以立即开始解码。

    AUDIO AND VIDEO COMMUNICATIONS APPARATUS AND COMMUNICATIONS METHOD THEREOF
    14.
    发明申请
    AUDIO AND VIDEO COMMUNICATIONS APPARATUS AND COMMUNICATIONS METHOD THEREOF 有权
    音视频通信设备及其通信方法

    公开(公告)号:US20110063504A1

    公开(公告)日:2011-03-17

    申请号:US12992703

    申请日:2010-03-01

    申请人: Yoshimasa Honda

    发明人: Yoshimasa Honda

    IPC分类号: H04N9/475

    摘要: An audio and video communications apparatus eliminates a system clock frequency difference, freeing a user from unconformable feeling of audio and video. The audio and video communications apparatus includes: a transmitting unit and a receiving unit (106/108) transmitting and receiving audio and video via a network; a PTS correction timing determining unit (111) determining timing to update a correction amount of a PTS according to information of the audio or the video to be transmitted and received, the PTS being given to the received audio or the received video; a PTS correcting unit (112) correcting the PTS by updating the correction amount at the timing determined by the PTS correction timing determining unit (111); and an audio and video output unit (113) outputting the received audio and the received video corresponding to the corrected PTS found at a current time indicated by the audio and video communications apparatus.

    摘要翻译: 音频和视频通信设备消除了系统时钟频率差异,使用户不受音频和视频的不整合感。 音视频通信装置包括:发送单元和接收单元(106/108),经由网络发送和接收音频和视频; PTS校正定时确定单元(111)根据要发送和接收的音频或视频的信息确定更新PTS的校正量的定时,PTS被给予所接收的音频或接收的视频; PTS校正单元,通过在由PTS校正定时确定单元确定的定时更新校正量来校正PTS; 以及音频和视频输出单元(113),其输出与由音频和视频通信设备指示的当前时间找到的经校正的PTS相对应的接收到的音频和接收的视频。

    Video coding apparatus
    15.
    发明授权
    Video coding apparatus 失效
    视频编码装置

    公开(公告)号:US07492819B2

    公开(公告)日:2009-02-17

    申请号:US10324807

    申请日:2002-12-20

    IPC分类号: H04B1/66

    摘要: In order to enhance the picture quality of a detected area, the present invention provides a video coding apparatus. In the apparatus, a reliability indicative of the degree of coincidence of an area detected by an important area detecting section with a real important area is calculated, and a coding parameter calculating section calculates a coding parameter to be set to the detected area according to the reliability, thereby controlling the picture quality of the detected area. Consequently, a whole image has a coding bit amount which does not break the restrictions of a transmission bit rate, and a larger coding bit amount is assigned to the important area so that a picture quality thereof can be improved and a visibility can be enhanced. In addition, the picture quality is more enhanced if a probability that the detected area might be an important area is higher.

    摘要翻译: 为了提高检测区域的图像质量,本发明提供一种视频编码装置。 在该装置中,计算表示由重要区域检测部检测出的区域与实际重要区域一致的程度的可靠度,编码参数计算部根据所述重要区域检测部分 可靠性,从而控制检测区域的图像质量。 因此,整个图像具有不破坏传输比特率的限制的编码比特量,并且将较大的编码比特量分配给重要区域,使得可以提高其图像质量并且可以提高可见性。 此外,如果检测区域可能是重要区域的概率较高,则图像质量更强。

    Moving image receiving apparatus
    18.
    发明授权
    Moving image receiving apparatus 有权
    运动图像接收装置

    公开(公告)号:US08073273B2

    公开(公告)日:2011-12-06

    申请号:US12065223

    申请日:2006-08-14

    IPC分类号: G06K9/36

    摘要: A moving image receiving apparatus has a moving image decoding apparatus (303) for decoding received moving image data. The moving image decoding apparatus (303) comprises: a media buffer (401) for storing moving image data; an intra-map memory (402) for storing an intra-map indicating a location of an intrablock included in an interframe of the moving image data; a pseudo intraframe generator (404) that, based on an intra-map stored in the intra-map memory (402), extracts an image of an intrablock included in an interframe in order from a latest interframe accumulated in the media buffer (401), combines images of intrablocks extracted from a plurality of interframes, and thereby generates a pseudo intraframe; and a decoder (406) that starts to decode moving image data, using a pseudo intraframe. The moving image receiving apparatus can thus decode received moving image data from an arbitrary frame.

    摘要翻译: 运动图像接收装置具有用于对接收的运动图像数据进行解码的运动图像解码装置(303)。 运动图像解码装置(303)包括:存储运动图像数据的媒体缓冲器(401) 用于存储指示包含在运动图像数据的帧间的块内的位置的帧内地图的地图内存储器(402); 根据存储在所述地图内存储器(402)内的图像内的图像,从累积在所述媒体缓冲器(401)中的最新帧间起,依次提取帧间包含的块内图像的伪帧内生成器(404) 组合从多个帧间提取的块内图像,从而生成伪帧内; 以及使用伪帧内开始解码运动图像数据的解码器(406)。 因此,运动图像接收装置可以从任意帧解码所接收的运动图像数据。

    Content use method and content recording device
    19.
    发明申请
    Content use method and content recording device 审中-公开
    内容使用方法和内容录制设备

    公开(公告)号:US20070177491A1

    公开(公告)日:2007-08-02

    申请号:US11570084

    申请日:2005-06-10

    IPC分类号: G11B7/24

    摘要: There is provided a content recording device capable of performing content reproduction with a plurality of qualities while limiting the use of the content. The device includes a content acquisition unit for acquiring a basic layer indispensable for content reproduction which is obtained by hierarchically encoding at least one of the parameters of the resolution, bit rate. and frame rate and an extended layer for interpolating it; and an access control unit for recording the basic layer, the extended layer, and use control information, moving the basic layer recorded in a basic layer recording unit and the use control information recorded in a use control information recording unit to an external content recording device. and deleting the moved basic layer from the basic layer recording unit, thereby enabling reproduction of the content with various qualities by a plurality of devices as well as reproduction with the original quality while satisfying the use limit posed on the content.

    摘要翻译: 提供了一种内容记录装置,其能够在限制内容的使用的同时以多种质量进行内容再现。 该装置包括内容获取单元,用于获取通过对分辨率,比特率的参数中的至少一个进行分层编码获得的用于内容再现所必需的基本层。 帧率和扩展层进行插值; 以及访问控制单元,用于记录基本层,扩展层和使用控制信息,将记录在基本层记录单元中的基本层和将使用控制信息记录单元中记录的使用控制信息移动到外部内容记录装置 。 以及从基本层记录单元中删除所移动的基本层,从而能够通过多个设备再现具有各种品质的内容以及在满足内容使用限制的情况下以原始质量进行再现。

    Video transmitting apparatus and video receiving apparatus
    20.
    发明申请
    Video transmitting apparatus and video receiving apparatus 审中-公开
    视频发送装置和视频接收装置

    公开(公告)号:US20070133675A1

    公开(公告)日:2007-06-14

    申请号:US10577994

    申请日:2004-10-25

    IPC分类号: H04N11/04 H04B1/66 H04N7/12

    摘要: A video transmitting apparatus that is able to efficiently transmit and decode only the video data of the region of interest without lowering coding efficiency, and that is able to change the region of interest during reproduction of video. In this apparatus, a base layer coding section (116) codes the base layer of low resolution obtained by reducing input video of high resolution. A region map calculating section (118) calculates a region map indicating the divided region upon coding, and an enhancement layer coding section (120) performs intra-frame coding for each divided region after dividing the enhancement layer which is differential video of the input video and video obtained by decoding the base layer coded video and expanding the same to the resolution of the input video according to the region map. Here, an offset table generating section (122) generates an offset table indicating the storing position of the coded enhancement layer for each divided region, and a video data clipping section (136) clips the video data corresponding to the region of interest only from the enhancement layer using the offset table.

    摘要翻译: 一种视频发送装置,其能够仅有效地发送和解码感兴趣区域的视频数据,而不降低编码效率,并且能够在再现视频期间改变感兴趣的区域。 在该装置中,基层编码部(116)通过降低高分辨率的输入视频而获得的低分辨率的基本层进行编码。 区域映射计算部分(118)在编码时计算指示分割区域的区域映射,并且增强层编码部分(120)在分割作为输入视频的差分视频的增强层之后对每个分割区域进行帧内编码 以及通过对基本层编码的视频进行解码而获得的视频,并根据该区域图将其扩展为输入视频的分辨率。 这里,偏移表生成部(122)生成表示针对每个分割区域的编码增强层的存储位置的偏移表,并且视频数据剪辑部(136)仅从对应于感兴趣区域的视频数据剪辑 增强层使用偏移表。