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Patent Agency Ranking
1.发明授权公开(公告)号：US08917954B2
公开(公告)日：2014-12-23
申请号：US13859634
申请日：2013-04-09
Inventor： Hye-Sun Kim , Yun Ji Ban , Kyung Ho Jang , Jung Jae Yu , Myung Ha Kim , Ho Wook Jang , Seung Woo Nam , Hae Dong Kim
CPC classification number: H04N13/128 , H04N13/261 , H04N13/271
Abstract: A method of converting a two-dimensional video to a three-dimensional video, the method comprising: comparing an image of an nth frame with an accumulated image until an n−1th frame in the two-dimensional video to calculate a difference in a color value for each pixel; generating a difference image including information on a change in a color value for each pixel of the nth frame; storing an accumulated image until the nth frame by accumulating the information on the change in the color value for each pixel until the nth frame; performing an operation for a pixel in which a change in a color value is equal to or larger than a predetermined level by using the difference image to generate a division image and a depth map image; and converting the image of the nth frame to a three-dimensional image by using the depth map image.
Abstract translation: 一种将二维视频转换为三维视频的方法，所述方法包括：将第n帧的图像与累积图像进行比较，直到二维视频中的第n-1帧，以计算颜色差异 每个像素的值; 生成包括关于第n帧的每个像素的颜色值的变化的信息的差分图像; 通过累积关于每个像素的颜色值的变化的信息直到第n帧来存储累积图像直到第n帧; 通过使用差分图像对颜色值的变化等于或大于预定水平的像素进行操作以产生分割图像和深度图图像; 以及通过使用深度图图像将第n帧的图像转换为三维图像。
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公开(公告)号：US10991157B2
公开(公告)日：2021-04-27
申请号：US16664517
申请日：2019-10-25
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
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.
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3.发明授权公开(公告)号：US08873855B2
公开(公告)日：2014-10-28
申请号：US13791791
申请日：2013-03-08
Inventor： Jung Jae Yu , Ho Wook Jang , Seung Woo Nam , Kyung Ho Jang , Hae Dong Kim , Hye-Sun Kim , Yun Ji Ban , Myung Ha Kim
CPC classification number: G06T7/0097 , G06T7/248 , G06T2207/10016 , G06T2207/10024 , G06T2207/20036 , G06T2207/30196
Abstract: Disclosed are an apparatus and a method for extracting a foreground layer from an image sequence that extract a foreground object layer area in which a depth value is discontinuous with that of a background from an input image sequence. By using the present disclosure, the layer area is automatically tracked in the subsequent frames through user's setting in the start frame in the image sequence in which the depth values of the foreground and the background are discontinuous, thereby extracting the foreground layer area in which the drift phenomenon and the flickering phenomenon are reduced.
Abstract translation: 公开了一种从从输入图像序列中提取深度值与背景的深度值不连续的前景对象层区域的图像序列中提取前景层的装置和方法。 通过使用本公开，通过在前景和背景的深度值不连续的图像序列中的开始帧中的用户设置，在随后的帧中自动跟踪层区域，从而提取其中 漂移现象和闪烁现象减少。
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公开(公告)号：US20130236099A1
公开(公告)日：2013-09-12
申请号：US13791791
申请日：2013-03-08
Inventor： Jung Jae YU , Ho Wook Jang , Seung Woo Nam , Kyung Ho Jang , Hae Dong Kim , Hye-Sun Kim , Yun Ji Ban , Myung Ha Kim
IPC: G06T7/00
CPC classification number: G06T7/0097 , G06T7/248 , G06T2207/10016 , G06T2207/10024 , G06T2207/20036 , G06T2207/30196
Abstract: Disclosed are an apparatus and a method for extracting a foreground layer from an image sequence that extract a foreground object layer area in which a depth value is discontinuous with that of a background from an input image sequence. By using the present disclosure, the layer area is automatically tracked in the subsequent frames through user's setting in the start frame in the image sequence in which the depth values of the foreground and the background are discontinuous, thereby extracting the foreground layer area in which the drift phenomenon and the flickering phenomenon are reduced.
Abstract translation: 公开了一种从从输入图像序列中提取深度值与背景的深度值不连续的前景对象层区域的图像序列中提取前景层的装置和方法。 通过使用本公开，通过在前景和背景的深度值不连续的图像序列中的开始帧中的用户设置，在随后的帧中自动跟踪层区域，从而提取其中 漂移现象和闪烁现象减少。
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公开(公告)号：US10217281B2
公开(公告)日：2019-02-26
申请号：US15649539
申请日：2017-07-13
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: G06T5/00 , H04N13/282 , G06T17/20 , G06T7/246 , H04N13/296
Abstract: Disclosed herein are an apparatus and method for reconstructing a 3D model. The apparatus for reconstructing a 3D model includes an image acquisition unit for acquiring multi-view images by receiving image signals captured by multiple drones using cameras, a geometric calibration unit for estimating motion variables of the drones based on the acquired multi-view images, and a 3D model creation unit for reconstructing a 3D model of a dynamic object from the matched multi-view images using a multi-view stereo method.
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