专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

61. 发明授权

US08548225B2 Point selection in bundle adjustment 有权
标题翻译：分组调整中的点选择
公开(公告)号：US08548225B2
公开(公告)日：2013-10-01
申请号：US12323113
申请日：2008-11-25
申请人： Hailin Jin , Kai Ni
发明人： Hailin Jin , Kai Ni
IPC分类号： G06K9/00
CPC分类号： G06T7/593 , G06T7/73 , G06T2207/10016 , G06T2207/20164 , G06T2207/30244
摘要： In an embodiment, a method comprises receiving a set of three dimensional (3D) points estimated from a plurality of images; selecting a subset of the 3D points that, as a group, provide at least a desired amount of constraint on each of a plurality of camera parameters; and performing non-linear optimization over the selected subset of 3D points to recover the plurality of camera parameters and the 3D points. The selected subset excludes one or more 3D points in the set.
摘要翻译：在一个实施例中，一种方法包括接收从多个图像估计的一组三维（3D）点; 选择3D点的子集，其作为一组，在多个相机参数中的每一个上提供至少一个期望的约束量; 以及对所选择的3D点的子集进行非线性优化，以恢复多个相机参数和3D点。所选择的子集排除集合中的一个或多个3D点。

62. 发明申请

US20130128066A1 Methods and Apparatus for Robust Video Stabilization 有权
公开(公告)号：US20130128066A1
公开(公告)日：2013-05-23
申请号：US13301572
申请日：2011-11-21
申请人： Hailin Jin , Aseem O. Agarwala , Jue Wang
发明人： Hailin Jin , Aseem O. Agarwala , Jue Wang
IPC分类号： H04N5/228
CPC分类号： G06T7/33 , G06T7/246 , G06T2207/10016 , G06T2207/20028 , G06T2207/30241
摘要： Methods and apparatus for robust video stabilization. A video stabilization technique applies a feature tracking technique to an input video sequence to generate feature trajectories. The technique applies a video partitioning technique to segment the input video sequence into factorization windows and transition windows. The technique smoothes the trajectories in each of the windows, in sequence. For factorization windows, a subspace-based optimization technique may be used. For transition windows, a direct track optimization technique that uses a similarity motion model may be used. The technique then determines and applies warping models to the frames in the video sequence. In at least some embodiments, the warping models may include a content-preserving warping model, a homography model, a similarity transform model, and a whole-frame translation model. The warped frames may then be cropped according to a cropping technique.

63. 发明申请

US20130124159A1 Methods and Apparatus for Retargeting and Prioritized Interpolation of Lens Profiles 审中-公开
标题翻译：镜头轮廓重新定位和优先插值的方法和装置
公开(公告)号：US20130124159A1
公开(公告)日：2013-05-16
申请号：US12758647
申请日：2010-04-12
申请人： Simon Chen , Eric Chan , Hailin Jin , Jen-Chan Chien
发明人： Simon Chen , Eric Chan , Hailin Jin , Jen-Chan Chien
IPC分类号： G06F17/17
CPC分类号： G06T5/006 , G06T2207/10004 , H04N5/217 , H04N5/3572
摘要： Methods and apparatus for retargeting and prioritized interpolation of lens profiles. A lens profile file may include a set of lens sub-profiles. The camera body and/or settings described in the file may not exactly match that of camera body and/or settings used to capture a target image. A sub-profile processing module may perform a prioritized sub-profile sorting and interpolation method to generate an interpolated sub-profile that may be applied to the target image to correct aberrations including, but not limited to, geometric distortion, lateral chromatic aberration, and vignette. Thus, models generated for a reference camera at a variety of settings may be applied to a target image captured with the same type of lens but with a different camera and/or with different settings that are not exactly modeled in the lens profile file.
摘要翻译：透镜轮廓的重新定位和优先插值的方法和装置。透镜轮廓文件可以包括一组透镜子轮廓。文件中描述的相机机身和/或设置可能与拍摄目标图像的相机机身和/或设置的设置可能不完全相同。子轮廓处理模块可以执行优先化的子轮廓分类和插值方法以产生可以应用于目标图像的内插子轮廓，以校正像差，以包括但不限于几何失真，横向色差和小插曲因此，以各种设置为参考相机生成的模型可以应用于用相同类型的镜头捕获的目标图像，但是可以应用于不同的相机和/或具有不精确建模在镜头轮廓文件中的不同设置。

64. 发明申请

US20130121616A1 METHOD AND APPARATUS FOR ESTIMATING ROTATION, FOCAL LENGTHS AND RADIAL DISTORTION IN PANORAMIC IMAGE STITCHING 有权
标题翻译：评估全景图像缝合中的旋转，焦距和径向失真的方法和装置
公开(公告)号：US20130121616A1
公开(公告)日：2013-05-16
申请号：US13411255
申请日：2012-03-02
申请人： Hailin Jin
发明人： Hailin Jin
IPC分类号： G06K9/36
CPC分类号： G06T7/74 , G06T7/337 , G06T2207/30244
摘要： Method and apparatus for estimating relative three-dimensional (3D) camera rotations, focal lengths, and radial (lens) distortions from point-correspondences in pairwise (two image) image alignment. A core estimator takes a minimal (three) number of point-correspondences and returns a rotation, lens (radial) distortion and two focal lengths. The core estimator solves relative 3D camera rotations, and lens distortions from 3-point-correspondences in two images in the presence of noise in point-correspondences. A robust estimator may be based on or may be “wrapped around” the core estimator to handle noise and errors in point-correspondences. The robust estimator may determine an alignment model for a pair of images from the rotation, distortion, and focal lengths.
摘要翻译：用于从成对（两个图像）图像对准中的点对应估计相对三维（3D）相机旋转，焦距和径向（透镜）失真的方法和装置。核心估计器采用最小（三）个点对应，并返回旋转，透镜（径向）失真和两个焦距。核心估计器解决相对3D摄像机旋转，以及在存在噪声的情况下在两个图像中的3点对应的透镜失真。鲁棒的估计器可以基于或可以“缠绕”核心估计器以处理点对应的噪声和误差。鲁棒估计器可以根据旋转，失真和焦距确定一对图像的对准模型。

65. 发明申请

US20130121558A1 Point Selection in Bundle Adjustment 有权
标题翻译：分组调整中的点选择
公开(公告)号：US20130121558A1
公开(公告)日：2013-05-16
申请号：US12323113
申请日：2008-11-25
申请人： Hailin Jin , Kai Ni
发明人： Hailin Jin , Kai Ni
IPC分类号： G06K9/00
CPC分类号： G06T7/593 , G06T7/73 , G06T2207/10016 , G06T2207/20164 , G06T2207/30244
摘要： In an embodiment, a method comprises receiving a set of three dimensional (3D) points estimated from a plurality of images; selecting a subset of the 3D points that, as a group, provide at least a desired amount of constraint on each of a plurality of camera parameters; and performing non-linear optimization over the selected subset of 3D points to recover the plurality of camera parameters and the 3D points. The selected subset excludes one or more 3D points in the set.
摘要翻译：在一个实施例中，一种方法包括接收从多个图像估计的一组三维（3D）点; 选择所述3D点的子集，所述3D点的集合作为一组，在多个相机参数中的每一个上提供至少一个期望的约束量; 以及对所选择的3D点的子集进行非线性优化，以恢复多个相机参数和3D点。所选择的子集排除集合中的一个或多个3D点。

66. 发明申请

US20130044186A1 Plane-based Self-Calibration for Structure from Motion 有权
标题翻译：基于平面的运动结构自校准
公开(公告)号：US20130044186A1
公开(公告)日：2013-02-21
申请号：US13551601
申请日：2012-07-17
申请人： Hailin Jin , Zihan Zhou
发明人： Hailin Jin , Zihan Zhou
IPC分类号： H04N13/02
CPC分类号： G06T7/80 , G06T7/174 , G06T7/20 , G06T2207/10016 , G06T2207/30241 , H04N13/20
摘要： Robust techniques for self-calibration of a moving camera observing a planar scene. Plane-based self-calibration techniques may take as input the homographies between images estimated from point correspondences and provide an estimate of the focal lengths of all the cameras. A plane-based self-calibration technique may be based on the enumeration of the inherently bounded space of the focal lengths. Each sample of the search space defines a plane in the 3D space and in turn produces a tentative Euclidean reconstruction of all the cameras that is then scored. The sample with the best score is chosen and the final focal lengths and camera motions are computed. Variations on this technique handle both constant focal length cases and varying focal length cases.
摘要翻译：用于自动校准移动摄像机观察平面场景的强大技术。基于平面的自校准技术可以将从点对应估计的图像之间的同形作为输入，并提供所有相机的焦距的估计。基于平面的自校准技术可以基于焦距的固有界限空间的计数。搜索空间的每个样本在3D空间中定义一个平面，并且反过来产生所有相机的临时欧几里德重建，然后对其进行评分。选择具有最佳分数的样本，并计算最终焦距和相机运动。该技术的变化处理恒定焦距情况和不同焦距情况。

67. 发明申请

US20120243803A1 Laying Out Multiple Images 有权
标题翻译：放置多个图像
公开(公告)号：US20120243803A1
公开(公告)日：2012-09-27
申请号：US13486882
申请日：2012-06-01
申请人： Hailin Jin , Jen-Chan Chien
发明人： Hailin Jin , Jen-Chan Chien
IPC分类号： G06K9/36
CPC分类号： G06T3/4038 , G06T7/30
摘要： Systems, methods, and apparatuses, including computer program products, are provided for re-layout of composite images. In some implementations, a method includes identifying geometric transformations corresponding to multiple images from a collection of images, where a geometric transformation reorients a corresponding image in relation to a common reference frame when applied and identifying a reference image for the multiple images in the collection of images. The method also includes determining overlapping image regions for the multiple images starting from the reference image, the determining based on the identified geometric transformations, determining additional transformations of a specified type for the multiple images based on the overlapping image regions, where an additional transformation lays out a corresponding image in relation to the reference image when applied, and making the additional transformations available for further processing and output with respect to the collection of images.
摘要翻译：提供了包括计算机程序产品在内的系统，方法和装置用于重新布局合成图像。在一些实施方式中，一种方法包括从图像集合中识别对应于多个图像的几何变换，其中几何变换在应用时重新定位相对于公共参考帧的对应图像，并且在集合中识别多个图像的参考图像图片。该方法还包括确定从参考图像开始的多个图像的重叠图像区域，基于所识别的几何变换的确定，基于重叠图像区域确定多个图像的指定类型的额外变换，其中附加变换在应用时相对于参考图像输出相应的图像，并且使得附加变换可用于进一步处理和输出关于图像的收集。

68. 发明授权

US08200039B2 Laying out multiple images 有权
标题翻译：放置多个图像
公开(公告)号：US08200039B2
公开(公告)日：2012-06-12
申请号：US11697284
申请日：2007-04-05
申请人： Hailin Jin , Jen-Chan Chien
发明人： Hailin Jin , Jen-Chan Chien
IPC分类号： G06K9/36
CPC分类号： G06T3/4038 , G06T7/30
摘要： Systems, methods, and apparatuses, including computer program products, are provided for re-layout of composite images. In some implementations, a method includes identifying geometric transformations corresponding to multiple images from a collection of images, where a geometric transformation reorients a corresponding image in relation to a common reference frame when applied and identifying a reference image for the multiple images in the collection of images. The method also includes determining overlapping image regions for the multiple images starting from the reference image, the determining based on the identified geometric transformations, determining additional transformations of a specified type for the multiple images based on the overlapping image regions, where an additional transformation lays out a corresponding image in relation to the reference image when applied, and making the additional transformations available for further processing and output with respect to the collection of images.
摘要翻译：提供了包括计算机程序产品在内的系统，方法和装置用于重新布局合成图像。在一些实施方式中，一种方法包括从图像集合中识别对应于多个图像的几何变换，其中几何变换在应用时重新定位相对于公共参考帧的对应图像，并且在集合中识别多个图像的参考图像图片。该方法还包括确定从参考图像开始的多个图像的重叠图像区域，基于所识别的几何变换的确定，基于重叠图像区域确定多个图像的指定类型的额外变换，其中附加变换在应用时相对于参考图像输出相应的图像，并且使得附加变换可用于进一步处理和输出关于图像的收集。

69. 发明授权

US08102428B2 Content-aware video stabilization 有权
标题翻译：内容感知视频稳定
公开(公告)号：US08102428B2
公开(公告)日：2012-01-24
申请号：US12276119
申请日：2008-11-21
申请人： Aseem O. Agarwala , Feng Liu , Hailin Jin
发明人： Aseem O. Agarwala , Feng Liu , Hailin Jin
IPC分类号： H04N5/228
CPC分类号： H04N5/23248 , H04N5/23267
摘要： In one embodiment, a method comprises receiving a source video sequence; determining a stabilized camera path to which the source video sequence is to be stabilized; and generating a stabilized video sequence, wherein each frame of the stabilized video sequence is generated as a content-aware warp of a corresponding frame in the input sequence.
摘要翻译：在一个实施例中，一种方法包括接收源视频序列; 确定源视频序列将被稳定的稳定的相机路径; 以及生成稳定视频序列，其中，所述稳定视频序列的每个帧被生成为所述输入序列中对应帧的内容感知扭曲。

70. 发明申请

US20080143748A1 Panoramic image straightening 有权
标题翻译：全景图像矫直
公开(公告)号：US20080143748A1
公开(公告)日：2008-06-19
申请号：US11638896
申请日：2006-12-13
申请人： Hailin Jin , Martin E. Newell
发明人： Hailin Jin , Martin E. Newell
IPC分类号： G09G5/14
CPC分类号： G06T3/40
摘要： Systems, methods, and apparatus, including computer program products, are provided for forming composite images. In some implementations, a method is provided. The method includes receiving a set of component images for forming a composite image and defining a first projection for the set of component images corresponding to a first reference frame. The method also includes identifying a plane corresponding to a point of view of the set of component images, where a normal to the plane corresponds to a second reference frame, defining a second projection for the set of component images corresponding to the second reference frame, the second reference frame corresponding to a rotation from the first reference frame defined using the normal of the identified plane, and rendering the composite image according to the second projection.
摘要翻译：提供了用于形成合成图像的系统，方法和装置，包括计算机程序产品。在一些实现中，提供了一种方法。该方法包括接收用于形成合成图像的一组分量图像，并且为对应于第一参考帧的分量图像组定义第一投影。该方法还包括识别对应于该组分图像集合的视点的平面，其中平面的法线对应于第二参考帧，为对应于第二参考帧的分量图像组定义第二投影，第二参考帧对应于使用所识别的平面的法线定义的第一参考帧的旋转，以及根据第二投影渲染合成图像。

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