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    • 23. 发明公开
    • EP0885529A4 -
    • EP0885529A4 - Google专利
    • EP0885529A4
    • 1998-12-23
    • EP97908963
    • 1997-03-05
    • G06F9/38G09G5/393H04N9/74
    • G09G5/393G06F9/3879G09G2340/125
    • An improved graphical manipulation technique for a home communications terminal (HCT) includes a linked-list of commands controlling various video operations in an application specific integrated circuit (ASIC). After each command has been implemented by the ASIC, the ASIC (200) proceeds to the next command without interrupting a host processor (303). Accordingly, the linked-list (302) eliminates the need of the host processor to continually process interrupts at the completion of each instruction. The linked-list command structure aids in intensive video operations including bit block transfers, video capture, and video display.
    • 用于家庭通信终端(HCT)的改进的图形处理技术包括控制专用集成电路(ASIC)中的各种视频操作的命令的链接列表。 在ASIC执行每个命令之后,ASIC(200)继续进行下一个命令而不中断主处理器(303)。 因此,链表(302)消除了主处理器在完成每条指令时连续处理中断的需要。 链接列表命令结构有助于密集的视频操作,包括位块传输,视频捕获和视频显示。
    • 25. 发明公开
    • MANAGING LETTERBOX DISPLAYS.
    • STEUERUNG VON LETTERBOXANZEIGEN。
    • EP0685142A4
    • 1995-09-05
    • EP93905999
    • 1993-02-17
    • THOMSON CONSUMER ELECTRONICS
    • KRANAWETTER GREG ALANSAEGER TIMOTHY WILLIAMWILLIS DONALD HENRY
    • H04N5/262H04N3/223H04N3/27H04N5/44H04N5/46H04N9/74
    • H04N7/0122H04N3/223
    • A video display system, comprises a video display having a first format display ratio. A picture height circuit (1010) determines an active picture height from an input video signal having a second format display ratio. A detector circuit (1030) identifies letterbox formats responsive to the active picture height in the signal and determines a format display ratio of the letterbox picture. A zoom circuit (1032) is operable in a first mode for enlarging the picture in size to fill the display substantially entirely, and operable in a second mode for enlarging the picture in size to substantially fill the display vertically. A vertical pan circuit (1034) centers the picture. The detector can identify the format display ratio of the letterbox format picture. A deflection system (50) is controllable in vertical size by a variable vertical scan rate, in horizontal size by variable horizontal expansion and compression, and in pan position by varying the vertical reset in phase.
    • 视频显示系统包括具有第一格式显示比率的视频显示器。 图像高度电路(1010)从具有第二格式显示比率的输入视频信号中确定有效图像高度。 检测器电路(1030)响应于信号中的活动图像高度识别信箱格式并确定信箱图像的格式显示比率。 变焦电路(1032)可在第一模式下操作,用于放大该图片的大小以基本上完​​全填满显示器,并且可在第二模式下操作,用于放大该图片的大小以垂直地充满显示器。 垂直平移电路(1034)将图片居中。 检测器可以识别信箱格式图像的格式显示比率。 偏转系统(50)的垂直尺寸可通过可变的垂直扫描速率,水平尺寸的可变水平扩展和压缩以及通过改变相位的垂直复位的水平位置来控制。
    • 27. 发明公开
    • TELEVISION DISPLAYS HAVING SELECTED INSERTED INDICIA
    • 具有选定插入式印度的电视显示
    • EP0595808A4
    • 1994-06-08
    • EP91919562
    • 1991-07-19
    • PRINCETON ELECTRONIC BILLBORAD
    • ROSSER ROY JONATHANLEACH MARTIN
    • H04N5/272G09G5/36G09G5/377H04N5/222H04N5/262H04N9/74
    • H04N5/2627H04N5/272H04N5/2723
    • An apparatus and method of altering video images to enable the addition of images, message, slogans or indicia in such a manner that they appear to be part of the original image as displayed. The application of the apparatus and method is particularly adapted to be used as advertising during sporting events or other events whereby an operator selects a portion of the video image display (16) such as a portion of a tennis court (12), recognizes the selected portion (17) and inserts a logo or advertising message (27) into that selected portion. The message is inserted into the selected portion of the court independent of how the scene is being panned or viewed by the television camera. The apparatus employs a pattern recognition algorithm such as the Burt Pyramid Algorithm to recognize the specific selected image portion.
    • 改变视频图像的装置和方法,以使得能够以这样的方式添加图像,消息,口号或标记,使得它们看起来是显示的原始图像的一部分。 该装置和方法的应用特别适于在运动事件或其他事件期间用作广告,由此操作者选择诸如网球场(12)的一部分的视频图像显示(16)的一部分,识别所选择的 部分(17)并将徽标或广告消息(27)插入到所选择的部分中。 消息被插入到法院的所选部分中,与电视摄像机的场景如何平移或观看无关。 该装置采用诸如Burt Pyramid算法的模式识别算法来识别特定的所选图像部分,并且借助于图像处理器(17,20,27)将徽标替换成第一图像(16)以提供出现的显示 好像插入的图像实际上是在场上绘制或以其他方式永久定位在球场上。 因此,即使在原始场景被移动,平移,放大,缩放或以其他方式在大小或透视中改变,插入的图像也被无缝地和实际地并入原始图像。 所得到的合成图像在电视观看者看来是绝对真实的并且呈现在现场。