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    Rectifying a sequence of stereo images
    2.
    发明授权
    Rectifying a sequence of stereo images 有权

    公开(公告)号：US10701336B2

    公开(公告)日：2020-06-30

    申请号：US16111918

    申请日：2018-08-24

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Assaf Tzabari ,  Doron Sabo ,  Roee Sfaradi ,  Omry Sendik

    IPC: H04N13/00 ,  G06T7/00 ,  G06K9/46 ,  G06T5/00 ,  G06K9/62 ,  H04N13/167 ,  G06T7/73 ,  G06T7/285 ,  H04N13/296 ,  H04N13/239 ,  G06T3/60 ,  G06T3/20

    Abstract: A method of rectifying stereo images includes providing a plurality of pairs of sets of keypoints extracted from a pair of current stereo images and from a pair of previous stereo images wherein each pair of stereo images includes a left image and a right image respectively obtained from a left camera and a right camera; providing a plurality of pairs of sets of next-choice-match points extracted from the pair of current stereo images and the pair of previous stereo images; finding one or more anchor points in a left previous image; finding a right linking point which is the corresponding keypoint in the right previous image, and a left linking point which is the corresponding keypoint in the left current image; finding a closing point; and calculating a cost from the right linking point, the left linking point, and the closing point.

    Detecting periodic patterns and aperture problems for motion estimation
    3.
    发明授权
    Detecting periodic patterns and aperture problems for motion estimation 有权

    公开(公告)号：US10395378B2

    公开(公告)日：2019-08-27

    申请号：US15647118

    申请日：2017-07-11

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Idan Ram ,  Omry Sendik

    IPC: G06T7/246 ,  G06T7/254 ,  G06T7/262

    Abstract: A method of evaluating motion estimation between a pair of digitized images includes receiving a distance map between a source block in a source image and all the blocks in a search area in a target image, scanning each column of the distance map, and saving indices of a minimum distance value for each column, scanning each row of the distance map, and saving indices of a minimum distance value for each row, locating candidate lines that pass through at least some local minima points that correspond to locations in the distance map of the minimum distance value in each of the columns or the minimum distance value in each of the rows determining a confidence level for each candidate line that passes through at least some of the local minima points, and selecting those candidate lines whose confidence level is greater than a predetermined threshold value.

    Method and system for matching stereo images
    4.
    发明授权
    Method and system for matching stereo images 有权

    公开(公告)号：US10354400B2

    公开(公告)日：2019-07-16

    申请号：US15600127

    申请日：2017-05-19

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Tomer Peleg ,  Omry Sendik

    IPC: G06K9/00 ,  G06T7/593 ,  G06T5/40 ,  H04N13/133

    Abstract: A method of matching stereo images includes: determining, first information indicating which orientations are dominant in each pixel location of a right image and a left image among the stereo images; determining second information indicating for each pixel location in the right image and the left image whether it lies on a pure horizontal edge; detecting points in the left image and the right image based on the first information and the second information; and performing a matching on the left image and the right image using the detected points to estimate a sparse disparity map.

    Motion estimation device and motion estimation method
    8.
    发明授权
    Motion estimation device and motion estimation method 有权
    运动估计装置和运动估计方法

    公开(公告)号：US09105100B2

    公开(公告)日：2015-08-11

    申请号：US14067303

    申请日：2013-10-30

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Omry Sendik

    IPC: H04N5/228 ,  G06T7/20 ,  H04N5/232 ,  H04N19/51 ,  H04N19/43

    CPC classification number: G06T7/2013 ,  G06T7/223 ,  H04N5/2329 ,  H04N19/43 ,  H04N19/51

    Abstract: A motion estimation method includes grouping row blocks of a first frame into a first plurality of banks and grouping row blocks of a second frame into a corresponding second plurality of banks, respectively; calculating the normalized cross correlation (NCC) or the sum of absolute difference (SAD) between the banks of the first frame and the banks of the second frame; detecting the local maxima from the NCC or the local minima from the SAD; estimating a first relative displacement between corresponding reference row blocks of the first frame and of the second frame; calculating motion coefficients using first relative displacements; and estimating second relative displacements using the motion coefficients.

    Abstract translation: 一种运动估计方法包括将第一帧的行块分组成第一多个存储体并分别将第二帧的行块分组成对应的第二多个存储体; 计算归一化互相关（NCC）或第一帧的存储体与第二帧的存储体之间的绝对差（SAD）之和; 从NCC检测局部最大值或从SAD检测局部最小值; 估计所述第一帧和所述第二帧的相应参考行块之间的第一相对位移; 使用第一相对位移计算运动系数; 并使用运动系数估计第二相对位移。

    Content aware visual image pattern matching
    9.
    发明授权
    Content aware visual image pattern matching 有权

    公开(公告)号：US10262422B2

    公开(公告)日：2019-04-16

    申请号：US15647483

    申请日：2017-07-12

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Roee Sfaradi ,  Omry Sendik

    IPC: G06K9/00 ,  H04N7/18 ,  G06T7/246 ,  G06K9/32 ,  H04N5/14 ,  G06T5/00 ,  G06K9/62

    Abstract: Exemplary embodiments of the invention as described herein generally provide for detecting the displacement of feature(s) within a visual image in cases where pattern matching fails due to the existence of aperture(s) caused for example by external condition(s) encountered in recording such an image over time. Technique(s) are disclosed for detecting the difference between displacement of a geometric feature of an object appearing within an image (e.g., an edge or smooth surface) that has an aperture and another feature (e.g., a corner) that does not since it is not symmetrically invariant.

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