中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

13 records (took 0.015 seconds)

    Signal adaptive filtering method, signal adaptive filter and computer readable medium for storing program therefor
    5.
    发明授权
    Signal adaptive filtering method, signal adaptive filter and computer readable medium for storing program therefor 有权
    信号自适应滤波方法，信号自适应滤波器和用于存储程序的计算机可读介质

    公开(公告)号：US08873643B2

    公开(公告)日：2014-10-28

    申请号：US14298530

    申请日：2014-06-06

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Yung-Iyul Lee ,  Hyun-Wook Park

    IPC: H04N19/00 ,  H04N19/124 ,  H04N19/80 ,  H04N19/182 ,  H04N19/136

    CPC classification number: H04N19/00 ,  G06T5/00 ,  G06T5/002 ,  G06T5/20 ,  G06T2207/20008 ,  H04N19/117 ,  H04N19/124 ,  H04N19/127 ,  H04N19/136 ,  H04N19/14 ,  H04N19/157 ,  H04N19/159 ,  H04N19/172 ,  H04N19/182 ,  H04N19/189 ,  H04N19/44 ,  H04N19/48 ,  H04N19/527 ,  H04N19/60 ,  H04N19/61 ,  H04N19/80 ,  H04N19/86 ,  H04N19/90

    Abstract: A signal adaptive filtering method for reducing blocking effect and ringing noise, a signal adaptive filter, and a computer readable medium. The signal adaptive filtering method capable of reducing blocking effect and ringing noise of image data when a frame is composed of blocks of a predetermined size includes the steps of: (a) generating blocking information for reducing the blocking effect and ringing information for reducing the ringing noise, from coefficients of predetermined pixels of the upper and left boundary regions of the data block when a frame obtained by deconstructing a bitstream image data for inverse quantization is an intraframe; and (b) adaptively filtering the image data passed through inverse quantization and inverse discrete cosine transform according to the generated blocking information and ringing information. Therefore, the blocking effect and ringing noise can be eliminated from the image restored from the block-based image, thereby enhancing the image restored from compression.

    Abstract translation: 一种用于减少阻塞效应和振铃噪声的信号自适应滤波方法，信号自适应滤波器和计算机可读介质。 当帧由预定尺寸的块组成时，能够减少图像数据的阻塞效应和振铃噪声的信号自适应滤波方法包括以下步骤：（a）产生阻塞信息以减少阻塞效应和振铃信息以减少振铃 当通过解构用于逆量化的比特流图像数据而获得的帧是帧内时，来自数据块的上边界区域和左边界区域的预定像素的系数的噪声; 和（b）根据生成的阻塞信息和振铃信息自适应地过滤通过逆量化和逆离散余弦变换的图像数据。 因此，可以从基于块的图像恢复的图像中消除阻挡效果和振铃噪声，从而增强从压缩恢复的图像。

Patent Agency Ranking