公开(公告)号：US06784942B2

公开(公告)日：2004-08-31

申请号：US09970984

申请日：2001-10-05

Applicant: Steve Selby ,  Daniel Stan

Inventor： Steve Selby ,  Daniel Stan

IPC: H04N701

CPC classification number: H04N7/0137 ,  H04N7/012

Abstract: A system and method for generating an interpolated pixel at a vertical position in a field of a video frame. The method comprises the steps of receiving at least two pixels vertically adjacent the vertical position in the field and at least three pixels from at least one adjacent field, detecting a degree of motion in the vicinity of the interpolated pixel, providing weighting factors based on the degree of motion, and calculating the interpolated pixel based on a combination of weighted contributions from the at least two pixels and the at least three pixels. The weighted contributions are derived from a combination of the weighting factors and at least vertical-temporal and temporal interpolation. For at least one degree of said motion, the weighted contributions comprise at least (i) a first positive contribution derived from immediately adjacent ones of the at least two pixels, (ii) a second positive contribution derived from a central one of the at least three pixels located at the vertical position, and (iii) a negative contribution derived from the two of the at least three pixels that are immediately vertically adjacent the central pixel.

Abstract translation: 一种用于在视频帧的场中的垂直位置处产生内插像素的系统和方法。 该方法包括以下步骤：从场中的垂直位置垂直地接收至少两个像素，并从至少一个相邻场接收至少三个像素，检测内插像素附近的运动程度，提供基于 运动程度，以及基于来自至少两个像素和至少三个像素的加权贡献的组合来计算内插像素。 加权贡献来自加权因子和至少垂直时间和时间插值的组合。 对于所述运动的至少一度，所述加权贡献至少包括（i）从所述至少两个像素中的相邻相邻像素得到的第一正贡献，（ii）从至少一个 位于垂直位置的三个像素，以及（iii）从直接垂直邻近中心像素的至少三个像素中的两个像素导出的负贡献。

公开(公告)号：US06778221B1

公开(公告)日：2004-08-17

申请号：US09328371

申请日：1999-06-09

Applicant: Yoshihiro Nishioka ,  Yuji Mori ,  Mitsunori Ohno ,  Yuuji Takenaka

Inventor： Yoshihiro Nishioka ,  Yuji Mori ,  Mitsunori Ohno ,  Yuuji Takenaka

IPC: H04N701

CPC classification number: H04N7/014 ,  H04N5/145 ,  H04N7/141 ,  H04N19/142 ,  H04N19/179 ,  H04N19/87

Abstract: A method and apparatus for converting between different video formats, which provide smooth video motion by eliminating unnatural effects which could be introduced in the process of video format conversion. A frame interpolator produces interpolated frames from a first video signal given in a first video format by using motion vectors of the first video signal. From the interpolated frames, a video signal generator produces a second video signal in a second video format that is incompatible with the first video format.

Abstract translation: 一种用于在不同视频格式之间进行转换的方法和装置，其通过消除可能在视频格式转换过程中引入的不自然的影响来提供平滑的视频运动。 帧内插器通过使用第一视频信号的运动矢量从以第一视频格式给出的第一视频信号产生内插帧。 从内插帧中，视频信号发生器产生与第一视频格式不兼容的第二视频格式的第二视频信号。

公开(公告)号：US06757022B2

公开(公告)日：2004-06-29

申请号：US09948721

申请日：2001-09-10

Applicant: Finn G. Wredenhagen ,  Gary Cheng ,  Soo Jang ,  Lance Greggain

Inventor： Finn G. Wredenhagen ,  Gary Cheng ,  Soo Jang ,  Lance Greggain

IPC: H04N701

CPC classification number: H04N5/142 ,  H04N5/144 ,  H04N7/0115 ,  H04N7/012 ,  H04N7/0137 ,  H04N7/0142 ,  H04N19/117 ,  H04N19/139 ,  H04N19/51

Abstract: An adaptive filter calculates a target pixel from an interlaced video signal. The video signal comprises a plurality of frames, each of which comprise an even and an odd field. The filter comprises a quantized motion calculator and a filter selector. The quantized motion calculator estimates an amount of motion about the target pixel. The filter selector selects a filter in accordance with the estimated amount of motion. The filter applies a first weighting factor to a plurality of current field pixels and a second weighting factor to a plurality of previous field pixels for creating the target pixel.

Abstract translation: 自适应滤波器从隔行视频信号计算目标像素。 视频信号包括多个帧，每个帧包括偶数和奇数场。 滤波器包括量化运动计算器和滤波器选择器。 量化运动计算器估计关于目标像素的运动量。 滤波器选择器根据估计的运动量选择滤波器。 滤波器对多个当前场像素施加第一加权因子，并将第二加权因子应用于多个先前场像素，以创建目标像素。

公开(公告)号：US06734916B1

公开(公告)日：2004-05-11

申请号：US09679162

申请日：2000-10-04

Applicant: Karl Sims

Inventor： Karl Sims

IPC: H04N701

CPC classification number: H04N7/012 ,  H04N5/144

Abstract: Portions that identify motion are identified in an original frame of interlaced video fields. A de-interlaced version of the frame is generated. The original frame and the de-interlaced frame are combined to form a resulting frame, the resulting frame including portions from the original frame that represent relatively less motion and portions from the de-interlaced version that represent relatively more motion.

Abstract translation: 识别运动的部分在隔行视频字段的原始帧中被识别。 生成帧的去隔行版本。 原始帧和去隔行帧被组合以形成结果帧，所得到的帧包括来自原始帧的表示相对较少运动的部分和表示相对更多运动的去隔行版本的部分。

公开(公告)号：US06697119B2

公开(公告)日：2004-02-24

申请号：US09771552

申请日：2001-01-30

Applicant: Wataru Tachibana

Inventor： Wataru Tachibana

IPC: H04N701

CPC classification number: H04N7/0105 ,  H04N11/20

Abstract: A data rate conversion apparatus of the present invention is a data rate conversion apparatus, comprising: an information input device for receiving frame information at a first data rate; an information storage memory including a plurality of buffers for storing the frame information; a write control device for selecting one of the buffers to which the frame information is to be written, and writing the frame information to the selected buffer; a read control device for selecting one of the buffers from which the frame information is to be read, and reading the frame information from the selected buffer; and an information output device for outputting the frame information, which is read by the read control device, at a second data rate which is different from the first data rate.

Abstract translation: 本发明的数据速率转换装置是一种数据速率转换装置，包括：用于以第一数据速率接收帧信息的信息输入装置; 信息存储存储器，包括用于存储帧信息的多个缓冲器; 写控制装置，用于选择要写入帧信息的缓冲器之一，并将帧信息写入所选择的缓冲器; 读取控制装置，用于选择要从其读取帧信息的缓冲器之一，并从所选择的缓冲器读取帧信息; 以及信息输出装置，用于以与第一数据速率不同的第二数据速率输出由读取控制装置读取的帧信息。

公开(公告)号：US06680752B1

公开(公告)日：2004-01-20

申请号：US09539572

申请日：2000-03-31

Applicant: Edward G. Callway ,  Philip L. Swan

Inventor： Edward G. Callway ,  Philip L. Swan

IPC: H04N701

CPC classification number: H04N7/012

Abstract: An improved deinterlacing technique reconstructs regions of an image that change monotonically in the vertical direction (i.e., vertical deinterlacing). The present invention adapts to the image content without using spatio-temporal interpolation techniques. Rather, deinterlacing in accordance with the teachings of the present invention uses, for example, four localized input pixel values to produce an output pixel value that minimizes spatial artifacts (i.e., accurately reconstructs regions that change monotonically in the vertical direction). In another embodiment, an overlay scaler shares overlay scaling circuitry and deinterlacing circuitry to provide a cost effective implementation of a unique deinterlacing circuit. In another embodiment, a plurality of offsets are used in addition to three or more pixels.

Abstract translation: 改进的去隔行技术重建在垂直方向上单调变化的图像的区域（即，垂直去隔行扫描）。 本发明适应于图像内容而不使用时空插值技术。 相反，根据本发明的教导，去隔行器使用例如四个局部化的输入像素值来产生使空间伪影最小化的输出像素值（即，精确地重建在垂直方向上单调变化的区域）。 在另一个实施例中，覆盖缩放器共享覆盖缩放电路和去隔行电路以提供独特的去隔行电路的成本有效的实现。 在另一个实施例中，除了三个或更多个像素之外还使用多个偏移。

公开(公告)号：US06646684B1

公开(公告)日：2003-11-11

申请号：US09720348

申请日：2000-12-21

Applicant: Tetsujiro Kondo ,  Yasushi Tatehira ,  Masaaki Hattori

Inventor： Tetsujiro Kondo ,  Yasushi Tatehira ,  Masaaki Hattori

IPC: H04N701

CPC classification number: H04N7/012 ,  H04N7/0132 ,  H04N7/0135

Abstract: One of an output picture signal with a field double speed of AABB type and an output picture signal with a field double speed of ABAB type is selectively generated with selection signals SL1 and SL2. In the AABB type, among first, second, third, and fourth output fields, the vertical pixel position of the second output field is the same as the vertical pixel position of the first output field. In addition, the vertical pixel position of the fourth output field is the same as the vertical pixel position of the third output field. In the ABAB type, among first, second, third, and fourth output fields that are chronologically successive, the vertical pixel position of the second output field deviates from the vertical pixel position of the first output field. In addition, the vertical pixel position of the third output field deviates from the vertical pixel position of the second output field. The vertical pixel position of the fourth output field deviates from the vertical pixel position of the third output field.

Abstract translation: 利用选择信号SL1和SL2选择性地产生具有AABB类型的场双倍速度的输出图像信号和具有ABAB类型的场双倍速度的输出图像信号之一。 在AABB型中，在第一，第二，第三和第四输出场中，第二输出场的垂直像素位置与第一输出场的垂直像素位置相同。 此外，第四输出场的垂直像素位置与第三输出场的垂直像素位置相同。 在ABAB类型中，在时间顺序连续的第一，第二，第三和第四输出场中，第二输出场的垂直像素位置偏离第一输出场的垂直像素位置。 此外，第三输出场的垂直像素位置偏离第二输出场的垂直像素位置。 第四输出场的垂直像素位置偏离第三输出场的垂直像素位置。

公开(公告)号：US06614484B1

公开(公告)日：2003-09-02

申请号：US09654167

申请日：2000-09-01

Applicant: Il Taek Lim ,  Kyoung Won Lim ,  Cheol Hong Min

Inventor： Il Taek Lim ,  Kyoung Won Lim ,  Cheol Hong Min

IPC: H04N701

CPC classification number: H04N7/0135 ,  H04N7/012

Abstract: A deinterlacing method based on an edge-directional interpolation in a conversion of video signals of an interlaced scanning format into those of a progressive scanning format, in which the unit of interpolation is extended from the unit of one pixel to the unit of one pixel group. An intermediate frame video is formed from an original interlaced field video. Mismatch values associated Keith edge directions are compared, thereby determining four edge directions exhibiting mismatch values less than those of other edge directions. An interpolation pixel value is calculated, using the intermediate video frame, indices of the four edge directions, and indices of the edge directions. A determination is made based on similarities of the four edge directions, differences among the less mismatch values associated with the four edge directions, and differences of the less mismatch values from mismatch values associated with the remaining edge directions.

Abstract translation: 一种基于在将隔行扫描格式的视频信号转换为逐行扫描格式的视频信号的边缘方向插值的去隔行扫描方法，其中插值单位从一个像素的单位延伸到一个像素组的单位 。 中间帧视频由原始的隔行视频视频形成。 比较相关的基思边缘方向的不匹配值，从而确定显示与其他边缘方向的四个边缘方向相比不匹配值的四个边缘方向。 使用中间视频帧，四个边缘方向的索引和边缘方向的索引来计算内插像素值。 基于四个边缘方向的相似性，与四个边缘方向相关联的较少失配值之间的差异以及与剩余边缘方向相关联的不匹配值的较小失配值的差异进行确定。

公开(公告)号：US06597402B1

公开(公告)日：2003-07-22

申请号：US09654938

申请日：2000-05-10

Applicant: Donald S. Butler ,  Xu Dong ,  Jack J. Campbell

Inventor： Donald S. Butler ,  Xu Dong ,  Jack J. Campbell

IPC: H04N701

CPC classification number: H04N7/0112 ,  H04N7/012 ,  H04N7/0132 ,  Y10S348/91

Abstract: An interlaced television signal is derived from an interlaced 625 line, nominally 50 Hz field rate television signal, the derived television signal having perceived reduced line structure and reduced flicker. The field rate and the number of lines of the derived television signal are increased with respect to the field rate and the number of lines of the original television signal, such that perceived flicker and line structure in the derived television signal is reduced. The increase in the field rate and the increase in the number of lines in the derived television signal results in a horizontal scanning rate that does not substantially exceed twice the horizontal scanning rate of the original television signal while minimizing undesirable motion artifacts.

Abstract translation: 隔行扫描的电视信号是从隔行的625行，标称的50Hz场速率电视信号导出的，导出的电视信号具有感知到的减少的行结构和减少的闪烁。 导出的电视信号的场速和行数相对于现场速率和原始电视信号的行数增加，从而减少了导出的电视信号中的感知到的闪烁和行结构。 导出的电视信号中场速的增加和行数的增加导致水平扫描速率基本上不超过原始电视信号的水平扫描速率的两倍，同时最小化不期望的运动伪影。

公开(公告)号：US06573941B1

公开(公告)日：2003-06-03

申请号：US10127743

申请日：2002-04-22

Applicant: Donald Henry Willis ,  Shu Lin

Inventor： Donald Henry Willis ,  Shu Lin

IPC: H04N701

CPC classification number: H04N21/234363 ,  H04N7/01 ,  H04N7/012 ,  H04N7/0135 ,  H04N7/12

Abstract: A method for format conversion includes providing a first interlaced video signal including non-progressive video of a first resolution, downconverting fields of the first resolution to fields of a second resolution, and combining and interlacing the fields at a third resolution. The video signal is transmitted at the third resolution. The video signal of the third resolution is deinterlaced to form a progressive format video. The progressive format video is converted to the first non-progressive resolution by alternately adjusting position of the progressive format of the third resolution up and down to make upper and lower fields, respectively, of the first resolution for display.

Abstract translation: 一种用于格式转换的方法包括提供包括第一分辨率的非逐行视频的第一隔行视频信号，将第一分辨率的场下变频为第二分辨率的场，以及以第三分辨率合并和交织场。 视频信号以第三分辨率传输。 第三分辨率的视频信号被去隔行扫描以形成逐行格式视频。 通过交替地调整第三分辨率的逐行格式的上下位置来逐行格式视频被转换成第一非逐行分辨率，以分别形成用于显示的第一分辨率的上和下场。