专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US08259160B2 Method for generating free viewpoint video image in three-dimensional movement and recording medium 失效
标题翻译：用于在三维运动和记录介质中产生无视点视频图像的方法
公开(公告)号：US08259160B2
公开(公告)日：2012-09-04
申请号：US12488827
申请日：2009-06-22
申请人： Akio Ishikawa , Shigeyuki Sakazawa , Atsushi Koike
发明人： Akio Ishikawa , Shigeyuki Sakazawa , Atsushi Koike
IPC分类号： H04N13/02 , H04N5/225
CPC分类号： H04N5/247 , G06T15/20 , H04N13/111
摘要： The present invention provides a method for generating free viewpoint video image in three-dimensional movement capable of synthesizing the free viewpoint video image from a viewpoint which looks down on an object from above. This method includes a process of taking multi-viewpoint video images using a plurality of cameras located on an identical plane and a camera not located on the identical plane, a process of generating video image at a viewpoint having the same azimuth as a desired viewpoint and located on the plane from the multi-viewpoint video images of the cameras on the plane, and a process of generating video image at the desired viewpoint from video image of the camera not located on the plane and video image at the viewpoint having the same azimuth as the desired viewpoint and located on the plane.
摘要翻译：本发明提供了一种用于在能够从俯视物体的观点合成自由视点视频图像的三维运动中产生自由视点视频图像的方法。该方法包括使用位于相同平面上的多个摄像机和不位于同一平面上的摄像机拍摄多视点视频图像的过程，在具有与期望视点相同的方位角的视点处产生视频图像的处理，以及从平面上的摄像机的多视点视频图像位于平面上，以及从不位于平面上的摄像机的视频图像产生在期望视点处的视频图像的处理，并且具有相同方位角的视点作为所需的视点并位于飞机上。

2. 发明申请

US20100026788A1 METHOD FOR GENERATING FREE VIEWPOINT VIDEO IMAGE IN THREE-DIMENSIONAL MOVEMENT AND RECORDING MEDIUM 失效
标题翻译：用于在三维运动和记录介质中生成免费视点视频图像的方法
公开(公告)号：US20100026788A1
公开(公告)日：2010-02-04
申请号：US12488827
申请日：2009-06-22
申请人： Akio Ishikawa , Shigeyuki Sakazawa , Atsushi Koike
发明人： Akio Ishikawa , Shigeyuki Sakazawa , Atsushi Koike
IPC分类号： H04N13/02
CPC分类号： H04N5/247 , G06T15/20 , H04N13/111
摘要： The present invention provides a method for generating free viewpoint video image in three-dimensional movement capable of synthesizing the free viewpoint video image from a viewpoint which looks down on an object from above. This method includes a process of taking multi-viewpoint video images using a plurality of cameras located on an identical plane and a camera not located on the identical plane, a process of generating video image at a viewpoint having the same azimuth as a desired viewpoint and located on the plane from the multi-viewpoint video images of the cameras on the plane, and a process of generating video image at the desired viewpoint from video image of the camera not located on the plane and video image at the viewpoint having the same azimuth as the desired viewpoint and located on the plane.
摘要翻译：本发明提供了一种用于在能够从俯视物体的观点合成自由视点视频图像的三维运动中产生自由视点视频图像的方法。该方法包括使用位于相同平面上的多个摄像机和不位于同一平面上的摄像机拍摄多视点视频图像的过程，在具有与期望视点相同的方位角的视点处产生视频图像的处理，以及从平面上的摄像机的多视点视频图像位于平面上，以及从不位于平面上的摄像机的视频图像产生在期望视点处的视频图像的处理，并且具有相同方位角的视点作为所需的视点并位于飞机上。

3. 发明授权

US08243122B2 Video method for generating free viewpoint video image using divided local regions 失效
标题翻译：使用分割的本地区域生成空闲视点视频图像的视频方法
公开(公告)号：US08243122B2
公开(公告)日：2012-08-14
申请号：US12182630
申请日：2008-07-30
申请人： Akio Ishikawa , Shigeyuki Sakazawa , Atsushi Koike
发明人： Akio Ishikawa , Shigeyuki Sakazawa , Atsushi Koike
IPC分类号： H04N7/00
CPC分类号： G06T15/205
摘要： The present invention provides a method of generating a virtual viewpoint video image when the virtual viewpoint position is not located on a plane where a camera is disposed. In an environment in which a plurality of cameras having a horizontal optical axis are disposed in a real zone (for example, on the circumference) which surrounds an object, a video image of an arbitrary viewpoint on the circumference is generated. Further, by synthesizing video images photographed by a camera, a free viewpoint video image is generated from a virtual viewpoint (viewpoint from a high or low position) where no camera is placed. According to a method of achieving this, a travel distance of a display position is calculated by the local region synthesizing portion and this travel distance is reflected to the free viewpoint video image of a local region.
摘要翻译：本发明提供一种当虚拟视点位置不位于相机设置的平面上时产生虚拟视点视频图像的方法。在具有水平光轴的多个照相机设置在围绕物体的实际区域（例如，在周边）上的环境中，产生在圆周上的任意视点的视频图像。此外，通过合成由相机拍摄的视频图像，从没有相机放置的虚拟视点（高或低位置的视点）生成自由视点视频图像。根据这样做的方法，通过局部区域合成部分计算出显示位置的移动距离，并将该行进距离反映到局部区域的自由视点视频图像。

4. 发明授权

US08457204B2 Objective perceptual video quality evaluation apparatus 失效
标题翻译：客观感知视频质量评估仪器
公开(公告)号：US08457204B2
公开(公告)日：2013-06-04
申请号：US11830599
申请日：2007-07-30
申请人： Osamu Sugimoto , Shigeyuki Sakazawa , Atsushi Koike
发明人： Osamu Sugimoto , Shigeyuki Sakazawa , Atsushi Koike
IPC分类号： H04N7/12 , H04N11/02 , H04N11/04
CPC分类号： H04N19/587 , H04N19/132 , H04N19/154 , H04N19/176 , H04N19/61
摘要： A feature amount extracting unit extracts a block distortion degree of an evaluated video y relative to an original video x, a PSNR overall temporal fluctuation degree, and a PSNR local temporal fluctuation degree as feature amounts. A weighted sum calculating unit calculates a weighted sum of these feature amounts, and calculates an objective video quality index. Frame rate detecting unit detects frame rate of the evaluated video y. A correcting unit corrects the objective video quality index based on the frame rate detected by the frame rate detecting unit. An objective evaluation index-subjective video quality mapping unit applies the corrected objective video quality index Qobj to a correlation between an objective video quality index and a subjective video quality given in advance, thereby deriving a subjective video quality estimated value DMOS.
摘要翻译：特征量提取单元提取相对于原始视频x的估计视频y的块失真度，PSNR总时间波动程度和PSNR局部时间波动度作为特征量。加权和计算单元计算这些特征量的加权和，并计算目标视频质量指数。帧率检测单元检测评估视频y的帧速率。校正单元基于由帧速率检测单元检测到的帧速率来校正目标视频质量指标。客观评价指标 - 主观视频质量映射单元将校正的目标视频质量指标Qobj应用于预先给出的客观视频质量指标和主观视频质量之间的相关性，从而导出主观视频质量估计值DMOS。

5. 发明授权

US08311089B2 Multi-view video compression coding method and apparatus 失效
标题翻译：多视图视频压缩编码方法和装置
公开(公告)号：US08311089B2
公开(公告)日：2012-11-13
申请号：US11808818
申请日：2007-06-13
申请人： Akio Ishikawa , Atsushi Koike
发明人： Akio Ishikawa , Atsushi Koike
IPC分类号： H04B1/66
CPC分类号： H04N21/4347 , H04N19/597 , H04N21/21805 , H04N21/2365 , H04N21/2383 , H04N21/8146
摘要： A plurality of cameras is placed so that those optical axes become parallel to the Z-axis and are in relative position t on the XY plane. Multi-view video compression coding apparatus determines depth distance Z and unit normal vector (nx, ny, nz) of the arbitrary point in the surface of the object, moves the first block by disparity vector based on t and Z, transforming the first block by linear transformation matrix based on t, Z and n, then, matching the first block to block of the second picture. Then, while changing Z and n arbitrarily, the second block of the second picture which is most similar to the first block is searched for. And the apparatus derives a prediction error between the first block and the second block, codes the prediction error, and adds Z and n to coded data.
摘要翻译：放置多个照相机，使得这些光轴变得平行于Z轴并且在XY平面上处于相对位置t。多视点视频压缩编码装置确定对象表面中的任意点的深度距离Z和单位法向量（nx，ny，nz），基于t和Z移动第一块视差矢量，将第一块通过基于t，Z和n的线性变换矩阵，然后匹配第一个块到第二个图像的块。然后，在任意地改变Z和n的同时，搜索与第一块最相似的第二图像的第二块。并且该装置导出第一块和第二块之间的预测误差，对预测误差进行编码，并将Z和n添加到编码数据。

6. 发明申请

US20070291850A1 Alarm information display unit 失效
标题翻译：报警信息显示单元
公开(公告)号：US20070291850A1
公开(公告)日：2007-12-20
申请号：US11808818
申请日：2007-06-13
申请人： Akio Ishikawa , Atsushi Koike
发明人： Akio Ishikawa , Atsushi Koike
IPC分类号： H04N11/04 , H04B1/66
CPC分类号： H04N21/4347 , H04N19/597 , H04N21/21805 , H04N21/2365 , H04N21/2383 , H04N21/8146
摘要： A plurality of cameras is placed so that those optical axes become parallel to the Z-axis and are in relative position t on the XY plane. Multi-view video compression coding apparatus determines depth distance Z and unit normal vector (nx, ny, nz) of the arbitrary point in the surface of the object, moves the first block by disparity vector based on t and Z, transforming the first block by linear transformation matrix based on t, Z and n, then, matching the first block to block of the second picture. Then, while changing Z and n arbitrarily, the second block of the second picture which is most similar to the first block is searched for. And the apparatus derives a prediction error between the first block and the second block, codes the prediction error, and adds Z and n to coded data.
摘要翻译：放置多个照相机，使得这些光轴变得平行于Z轴并且在XY平面上处于相对位置t。多视点视频压缩编码装置确定对象表面中的任意点的深度距离Z和单位法向量（nx，ny，nz），基于t和Z移动第一块视差矢量，将第一块通过基于t，Z和n的线性变换矩阵，然后匹配第一个块到第二个图像的块。然后，在任意地改变Z和n的同时，搜索与第一块最相似的第二图像的第二块。并且该装置导出第一块和第二块之间的预测误差，对预测误差进行编码，并将Z和n添加到编码数据。

7. 发明申请

US20070160135A1 Multi-view video coding method and apparatus 审中-公开
标题翻译：多视点视频编码方法及装置
公开(公告)号：US20070160135A1
公开(公告)日：2007-07-12
申请号：US11638462
申请日：2006-12-14
申请人： Akio Ishikawa , Ryoichi Kawada , Atsushi Koike
发明人： Akio Ishikawa , Ryoichi Kawada , Atsushi Koike
IPC分类号： H04N11/04 , H04N7/18
CPC分类号： H04N7/181 , H04N5/247 , H04N19/50 , H04N19/597
摘要： A multi-view video coding method comprises the steps of: collecting position information of the video cameras, determining one video camera as a base video camera among the video cameras, collecting sequences of synchronism from the video cameras, independently coding a sequence of the base video camera, predictively coding a sequence of a video camera adjacent to the video camera of a previously coded sequence, in reference to the previously coded sequence, repeating the predictive coding step for sequence of an adjacent video camera, till sequences of all video cameras are coded.
摘要翻译：多视点视频编码方法包括以下步骤：收集摄像机的位置信息，在摄像机中确定一个摄像机作为基本摄像机，收集来自摄像机的同步序列，独立编码基站的序列视频摄像机，参照先前编码的序列预测编码与摄像机相邻的摄像机的序列，重复相邻摄像机序列的预测编码步骤，直到所有摄像机的序列为编码。

8. 发明授权

US08189036B2 Concealed regions complementing system of free viewpoint video images 有权
标题翻译：隐藏区域补充免费观点视频图像系统
公开(公告)号：US08189036B2
公开(公告)日：2012-05-29
申请号：US12630191
申请日：2009-12-03
申请人： Atsushi Matsumura , Sei Naito , Ryoichi Kawada , Atsushi Koike , Shuichi Matsumoto
发明人： Atsushi Matsumura , Sei Naito , Ryoichi Kawada , Atsushi Koike , Shuichi Matsumoto
IPC分类号： H04N13/04 , H04N13/00
CPC分类号： G06T15/20 , H04N13/111
摘要： A sender produces a background video image 4 from a reference video image 1 and a depth map 3 and synthesizes the background video image 4 in a background buffer 5. A projection converting matrix 6 for synthesizing is calculated. A receiver receives the reference video image 1, the depth map 3 and the projection converting matrix 6. The receiver produces a free viewpoint video image 11 and a background video image 12. The background buffer 13 is dynamically renewed. The free viewpoint video image 11 and the image in the background buffer 13 are synthesized with each other, and the background video image in the concealed regions in the free viewpoint video image are complemented to obtain the complemented image 14.
摘要翻译：发送者从参考视频图像1和深度图3生成背景视频图像4，并在背景缓冲器5中合成背景视频图像4.计算用于合成的投影转换矩阵6。接收器接收参考视频图像1，深度图3和投影转换矩阵6.接收器产生空闲视点视频图像11和背景视频图像12.背景缓冲器13被动态地更新。自由视点图像11和背景缓冲器13中的图像彼此合成，并且对自由视点视频图像中的隐藏区域中的背景视频图像进行补码以获得补码图像14。

9. 发明授权

US08134598B2 Picture quality monitoring apparatus 失效
标题翻译：图像质量监测仪
公开(公告)号：US08134598B2
公开(公告)日：2012-03-13
申请号：US11712428
申请日：2007-03-01
申请人： Ryoichi Kawada , Osamu Sugimoto , Atsushi Koike
发明人： Ryoichi Kawada , Osamu Sugimoto , Atsushi Koike
IPC分类号： H04N17/00 , H04N17/02 , H04N7/173
CPC分类号： H04N17/02
摘要： Picture having a band of 6 MHz is distributed to the set-top box (STB) 14 via the compression encoder 11, the distribution server 12, and the network 13. The low-pass filter 151 in the picture quality monitoring apparatus 15 removes high-frequency components of an inputted digital signal and inputs luminance signal, the band of which is limited to 4 MHz, into the PSNR calculator 153. The Y/C separator 152 separates a luminance signal from NTSC analog composite signal, which are sent out from the set-top box 14. The separated luminance signal has a band of 4 MHz. The PSNR calculator 153 calculates PSNR between the luminance signal from the low-pass filter 151 and the luminance signal from the Y/C separator 152.
摘要翻译：具有6MHz的频带的图像经由压缩编码器11，分发服务器12和网络13分配到机顶盒（STB）14。图像质量监视装置15中的低通滤波器151去除高输入数字信号的频率分量，并将其频带限制为4MHz的亮度信号输入到PSNR计算器153中.Y / C分离器152将从NTSC模拟复合信号中分离出的亮度信号从分离的亮度信号具有4MHz的频带。 PSNR计算器153计算来自低通滤波器151的亮度信号和来自Y / C分离器152的亮度信号之间的PSNR。

10. 发明授权

US07954893B2 Headrest for vehicle seat 有权
标题翻译：汽车座椅头枕
公开(公告)号：US07954893B2
公开(公告)日：2011-06-07
申请号：US12407036
申请日：2009-03-19
申请人： Masaaki Yokota , Atsushi Koike
发明人： Masaaki Yokota , Atsushi Koike
IPC分类号： B60N2/42 , B60N2/427 , B60N2/48 , B60R21/055
CPC分类号： B60N2/4228 , B60N2/888
摘要： A headrest for vehicle seat includes: a generally inverted-U-shaped frame having a pair of headrest stays defined therein; and an impact absorption bar fixedly connected between those two headrest stays. The impact absorption bar is located in a predetermined spaced relation with an upper horizontal frame portion of the generally inverted-U-shaped frame. When a rear-end collision or the like occurs, a head of seat occupant is stably received by those impact absorption bar and upper horizontal frame portion, while the impact absorption bar being readily deformed by backward excessive great load applied thereto from the seat occupant's head to thereby absorb and reduce a corresponding impact energy to be imparted to the head.
摘要翻译：用于车辆座椅的头枕包括：大致倒U形的框架，其中限定有一对头枕支架; 以及固定地连接在这两个头枕支架之间的冲击吸收杆。冲击吸收杆与大体上倒U形的框架的上水平框架部分以预定间隔的关系定位。当发生后端碰撞等时，座椅乘员的头部被那些冲击吸收杆和上部水平框架部分稳定地接收，而冲击吸收杆容易由座椅乘员的头部向后施加过大的负载而变形从而吸收和减少要赋予头部的相应的冲击能量。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式