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    Method and apparatus for matching 3-dimensional terrain information using heterogeneous altitude aerial images
    1.
    发明授权
    Method and apparatus for matching 3-dimensional terrain information using heterogeneous altitude aerial images 有权

    公开(公告)号：US10991157B2

    公开(公告)日：2021-04-27

    申请号：US16664517

    申请日：2019-10-25

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Jung-Jae Yu ,  Kyung-Kyu Kang ,  Hye-Sun Kim ,  Chang-Joon Park ,  Yun-Ji Ban ,  Dong-Wan Ryoo ,  Man-Hee Lee ,  Chang-Woo Chu

    IPC: G06T17/05 ,  G06T17/20 ,  G06T19/20 ,  G06T7/32

    Abstract: Disclosed herein are a method and apparatus for matching 3D terrain information based on aerial images captured at different altitudes. The method includes receiving a high-altitude numerical height model based on a terrain image captured at a specific high altitude; receiving 3D terrain information observed from a low altitude, which is generated based on a terrain image captured at an altitude lower than the specific high altitude; generating a low-altitude numerical height model by converting the 3D terrain information into a numerical model in the same form as the high-altitude numerical height model; measuring the cross-correlation between the high-altitude numerical height model and the low-altitude numerical height model, thereby calculating matching parameters for enabling the low-altitude numerical height model to match the high-altitude numerical height model; and adjusting the geospatial coordinates of the 3D terrain information based on the matching parameters and outputting georeferenced 3D terrain information in the same coordinate system as the high-altitude numerical height model.

    APPARATUS AND METHOD FOR EXTRACTING SKIN AREA TO BLOCK HARMFUL CONTENT IMAGE
    2.
    发明申请
    APPARATUS AND METHOD FOR EXTRACTING SKIN AREA TO BLOCK HARMFUL CONTENT IMAGE 审中-公开
    提取皮肤区域以阻止有害内容图像的装置和方法

    公开(公告)号：US20150125074A1

    公开(公告)日：2015-05-07

    申请号：US14178916

    申请日：2014-02-12

    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

    Inventor： Jung-Jae Yu ,  Seung-Wan Han ,  Moo-Seop Kim ,  Su-Gil Choi ,  Chi-Yoon Jeong

    IPC: G06T11/60 ,  G06T7/40 ,  G06K9/00 ,  G06K9/46

    CPC classification number: G06T7/11 ,  G06K9/00362 ,  G06T7/194 ,  G06T7/90 ,  G06T2207/10024

    Abstract: Disclosed are an apparatus and method for extracting a skin area to block a harmful image. The apparatus includes an image extraction unit, a skin sample area extraction unit, a background sample area extraction unit, a probability density function computation unit, and a skin area extraction unit. The image extraction unit extracts an image from image media. The skin sample area extraction unit extracts a skin sample area of the image based on prior information. The background sample area extraction unit extracts a background sample area of the image based on the prior information. The probability density function computation unit calculates the probability density functions of the skin sample area and the background sample area. The skin area extraction unit extracts a skin area from the image based on the probability density function of the skin sample area and the probability density function of the background sample area.

    Abstract translation: 公开了一种用于提取皮肤区域以阻止有害图像的装置和方法。 该装置包括图像提取单元，皮肤样本区域提取单元，背景样本区域提取单元，概率密度函数计算单元和皮肤区域提取单元。 图像提取单元从图像媒体提取图像。 皮肤样本区域提取单元基于先验信息提取图像的皮肤样本区域。 背景样本区域提取单元基于先前的信息提取图像的背景样本区域。 概率密度函数计算单元计算皮肤样本区域和背景样本区域的概率密度函数。 皮肤区域提取单元基于皮肤样本区域的概率密度函数和背景样本区域的概率密度函数从图像中提取皮肤区域。

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