Apparatus and method for extracting edge in image
    11.
    发明授权
    Apparatus and method for extracting edge in image 有权
    用于提取图像边缘的装置和方法

    公开(公告)号:US08811750B2

    公开(公告)日:2014-08-19

    申请号:US13614652

    申请日:2012-09-13

    IPC分类号: G06K9/48

    CPC分类号: G06K9/4604

    摘要: Disclosed are an apparatus and a method for extracting an edge to be used for extracting a feature point of an object in an image. The present invention proposes an image edge extracting apparatus and method that remove noise in an input image, calculate a gradient of an image in a noise-removed image, measure magnitude of the gradient, extract an edge having a maximum thickness value, and then calculate a threshold using a ratio of the extracted edge, and detect a final edge robust against noise based on the threshold.

    摘要翻译: 公开了一种用于提取要用于提取图像中的对象的特征点的边缘的装置和方法。 本发明提出了一种去除输入图像中的噪声,计算噪声去除图像中的图像的梯度,测量梯度的幅度,提取具有最大厚度值的边缘的图像边缘提取装置和方法,然后计算 阈值,使用所提取的边缘的比率,并且基于阈值检测对噪声的鲁棒性的最终边缘。

    Apparatus and method for correcting keystone distortion
    12.
    发明授权
    Apparatus and method for correcting keystone distortion 失效
    梯形失真校正装置及方法

    公开(公告)号:US06982730B2

    公开(公告)日:2006-01-03

    申请号:US09882520

    申请日:2001-06-15

    申请人: Dong Il Han

    发明人: Dong Il Han

    IPC分类号: G09G5/00

    摘要: An apparatus and a method for correcting keystone distortions in a display system are disclosed. A horizontal size generator first receives N horizontal sync signals of an input image and generates N corresponding horizontal output sizes. Each of the output sizes is generated at each sync signal based on a horizontal input size, a vertical size, and a desired keystone factor or each of horizontal keystone offsets of the input image. A format converter then receives said input image and generates an output image. Each line of the output image now has the corresponding horizontal output size.

    摘要翻译: 公开了一种用于校正显示系统中的梯形失真的装置和方法。 水平尺寸生成器首先接收输入图像的N个水平同步信号,并生成N个对应的水平输出尺寸。 基于水平输入尺寸,垂直尺寸和期望的梯形失真因子或输入图像的每个水平梯形失真偏移量,在每个同步信号中产生每个输出尺寸。 格式转换器然后接收所述输入图像并产生输出图像。 输出图像的每行现在都具有相应的水平输出尺寸。

    Border display device
    13.
    发明授权
    Border display device 有权
    边框显示设备

    公开(公告)号:US06515677B1

    公开(公告)日:2003-02-04

    申请号:US09475130

    申请日:1999-12-30

    申请人: In Ho Lee Dong Il Han

    发明人: In Ho Lee Dong Il Han

    IPC分类号: G09G514

    摘要: A PIP border display device allows a viewer to control the appearance of a border by color, shading and shape. Particularly, the border is divided into a plurality of regions, and different shadings or colors are applied to the plurality of regions according to a viewer's preference.

    摘要翻译: PIP边框显示设备允许观看者通过颜色,阴影和形状来控制边框的外观。 特别地,边框被划分为多个区域,并且根据观众的偏好将不同的阴影或颜色应用于多个区域。

    Image compensation apparatus
    14.
    发明授权
    Image compensation apparatus 有权
    图像补偿装置

    公开(公告)号:US07259798B2

    公开(公告)日:2007-08-21

    申请号:US10852098

    申请日:2004-05-25

    IPC分类号: H04N5/217

    摘要: The present invention provides an image compensation apparatus, by which a hardware structure is simplified and by which resolution of a remanded color gamut is enhanced when an inputted digital image is compensated to fit the characteristics of a display device. The present invention includes a 3-dimensional look-up table storing 3-dimensional transformation data corresponding to upper n-bits of an input image and a color interpolation unit outputting a final color-transformed image by performing linear interpolation using the 3-dimensional transformation data outputted from the 3-dimensional look-up table and 3-dimensional data corresponding to lower m-bits of the input image.

    摘要翻译: 本发明提供了一种图像补偿装置,通过该图像补偿装置简化了硬件结构,并且当输入的数字图像被补偿以适应显示装置的特性时,还原色域的分辨率得到增强。 本发明包括一个3维查找表,其存储对应于输入图像的高n位的3维变换数据和通过使用三维变换进行线性插值输出最终颜色变换图像的彩色内插单元 从三维查找表输出的数据和对应于输入图像的较低m位的3维数据。

    Deinterlacing apparatus and method using edge direction detection and pixel interplation
    15.
    发明授权
    Deinterlacing apparatus and method using edge direction detection and pixel interplation 失效
    使用边缘方向检测和像素插值的去隔行装置和方法

    公开(公告)号:US06731342B2

    公开(公告)日:2004-05-04

    申请号:US09754358

    申请日:2001-01-05

    IPC分类号: H04N701

    CPC分类号: H04N7/012

    摘要: The present invention relates to an interpolation technology, in particular to a deinterlacing apparatus and a method thereof which are capable of improving the definition of a picture. The method includes detecting an edge direction comprised in perimeter pixel values with inputs of a pixel value of field data in a field region to be interpolated and intra-field perimeter pixel values, detecting a direction indicating a minimum region matching error in accordance with the detected direction, yielding an intra-field interpolation value in accordance with the detected edge direction and performing an interpolation. This reduces the manufacture cost of a circuit by simplifying the circuit.

    摘要翻译: 本发明涉及一种内插技术,特别涉及能够改善图像定义的去隔行扫描装置及其方法。 该方法包括:检测包含在周边像素值中的边缘方向,其中输入要插值的场区域中的场数据的像素值和场内周边像素值,根据检测到的方向检测指示最小区域匹配误差的方向 方向,根据检测到的边缘方向产生场内插值,并执行插值。 这通过简化电路来降低电路的制造成本。

    Apparatus and method for format converting video
    16.
    发明授权
    Apparatus and method for format converting video 有权
    用于格式转换视频的装置和方法

    公开(公告)号:US06667773B1

    公开(公告)日:2003-12-23

    申请号:US09685613

    申请日:2000-10-11

    申请人: Dong Il Han

    发明人: Dong Il Han

    IPC分类号: H04N701

    摘要: An apparatus and a method for format converting a video are provided, in which an input video is format converted in a horizontal direction according to a horizontal output size to store in a line memory and the image stored in the line memory is format converted in a vertical direction according to a vertical output size, such that the amount of line memory required for converting various kinds of videos including the high resolution video to videos of the NTSC or the standard screen quality video are minimized. An input video is format converted in the horizontal direction and a plurality of the divided lines are temporarily format converted by using a single horizontal format converting unit, so that the required hardware becomes reduced.

    摘要翻译: 提供了一种用于格式转换视频的设备和方法,其中根据水平输出大小在水平方向上格式转换输入视频以存储在行存储器中,并且存储在行存储器中的图像被格式转换为 根据垂直输出尺寸的垂直方向,使得将包括高分辨率视频的各种视频到NTSC或标准画面质量视频的视频所需的行存储器的量最小化。 输入视频在水平方向上进行格式转换,并且通过使用单个水平格式转换单元临时格式地转换多个划分的行,使得所需的硬件减少。

    Video format converter for digital receiving system
    17.
    发明授权
    Video format converter for digital receiving system 有权
    用于数字接收系统的视频格式转换器

    公开(公告)号:US06501508B1

    公开(公告)日:2002-12-31

    申请号:US09475132

    申请日:1999-12-30

    IPC分类号: H04N701

    CPC分类号: H04N7/0135

    摘要: A vertical video format converter is disclosed including a memory unit which consists of a plurality of line memories to store input video data in one of the line memories, a filter for multiplying video data items respectively output from line memories by coefficients input into corresponding video data item positions and adding the multiplied data items to output filtered data. In the present invention, the position of the filter center value is not fixed, but can be located arbitrarily and the filter coefficients need not be symmetrical. Moreover, an interpolation may be performed by one-time filtering, resulting in faster data processing.

    摘要翻译: 公开了一种垂直视频格式转换器,其包括存储单元,该存储器单元由多个行存储器组成,用于将行存储器中的一个存储器中的输入视频数据存储起来;滤波器,用于将输入到行存储器的视频数据项分别输入相应的视频数据 项目位置,并将相乘的数据项添加到输出过滤数据。 在本发明中,滤波器中心值的位置不固定,但可任意定位,滤波器系数不必对称。 此外,可以通过一次性滤波执行插值,导致更快的数据处理。

    Deinterlacing apparatus of digital image data
    18.
    发明授权
    Deinterlacing apparatus of digital image data 失效
    数字图像数据的隔行扫描仪

    公开(公告)号:US06396543B1

    公开(公告)日:2002-05-28

    申请号:US09475257

    申请日:1999-12-30

    IPC分类号: H04N701

    CPC分类号: H04N7/0137 H04N7/012

    摘要: A deinterlacing method and apparatus for digital image data is disclosed. In the present invention, one of various interpolations appropriately performed according to a detected extent and direction of motion in a pixel to be interpolated. Thus, a screen quality can significantly be improved.

    摘要翻译: 公开了一种用于数字图像数据的去隔行扫描方法和装置。 在本发明中,根据检测到的内插像素的运动范围和方向适当地执行各种内插之一。 因此,可以显着提高屏幕质量。

    Apparatus for converting format for digital television
    19.
    发明授权
    Apparatus for converting format for digital television 有权
    数字电视转换格式的装置

    公开(公告)号:US06388711B1

    公开(公告)日:2002-05-14

    申请号:US09676782

    申请日:2000-10-02

    IPC分类号: H04N701

    摘要: A format conversion apparatus for a digital TV includes a block division and control signal generating part for dividing an input image into a plurality of blocks according to an input image size data and an output image size data. A format conversion coefficient generating part generates a format conversion coefficient for converting formats per block according to a control signal output from the block division and control signal generating part. A synchronizing signal generating part generates vertical and horizontal synchronizing signals per block according to a control signal output from the block division and control signal generating part. A format conversion part performs format conversion of image input per block according to the format conversion coefficient and the vertical and horizontal synchronizing signals. Vertical and horizontal format conversion of an input image is performed after dividing the image into a plurality of blocks so that buffer memory and bandwidth requirements for performing the format conversion are reduced simultaneously, while easily increasing a number of taps of a vertical filter. This prevents degradation of resolution generated when reducing a size of an image and realizes a high resolution with simple hardware.

    摘要翻译: 数字电视的格式转换装置包括块分割和控制信号产生部分,用于根据输入的图像尺寸数据和输出图像尺寸数据将输入图像分割成多个块。 格式转换系数生成部根据从块分割和控制信号生成部输出的控制信号,生成用于每个块转换格式的格式转换系数。 同步信号生成部根据从块分割和控制信号生成部输出的控制信号,每块生成垂直和水平同步信号。 格式转换部分根据格式转换系数和垂直和水平同步信号执行每个块的图像输入的格式转换。 在将图像划分成多个块之后执行输入图像的垂直和水平格式转换,使得缓冲存储器和用于执行格式转换的带宽要求同时减少,同时容易增加垂直滤波器的抽头数量。 这可以防止在减小图像尺寸时产生的分辨率降低,并以简单的硬件实现高分辨率。

    Finite impulse response filter
    20.
    发明授权

    公开(公告)号:US07152087B2

    公开(公告)日:2006-12-19

    申请号:US10322978

    申请日:2002-12-18

    IPC分类号: G06F17/10

    摘要: A filter, in particular, a finite impulse response (FIR) filter having a variable data input and output rate is disclosed. The FIR filter includes a first-in first-out (FIFO) architectural buffer, an address generator for circularly generating respective addresses for FIFO of data items and providing the addresses to the buffer, a filter for performing filtering on data items having different rates, which are input from the buffer, and outputting one or more data, and a controller for controlling address generation of the address generator and controlling transfer paths of data items for filtering of the filter. It is possible to variably control the input and output rate of filtering data by the FIR filter.