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1. 发明授权

US06628845B1 Method for subpixel registration of images 有权
标题翻译：图像子像素配准方法
公开(公告)号：US06628845B1
公开(公告)日：2003-09-30
申请号：US09526417
申请日：2000-03-15
申请人： Harold S. Stone , Michael T. Orchard , EE-Chien Chang , Stephen Martucci
发明人： Harold S. Stone , Michael T. Orchard , EE-Chien Chang , Stephen Martucci
IPC分类号： G06K932
CPC分类号： G06T3/4084 , G06K9/6203 , G06T7/37
摘要： Methods for registering first and second images which are offset by an x and/or y displacement in sub-pixel locations are provided. A preferred implementation of the methods includes the steps of: multiplying the first image by a window function to create a first windowed image; transforming the first windowed image with a Fourier transform to create a first image Fourier transform; multiplying the second image by the window function to create a second windowed image; transforming the second windowed image with a Fourier transform to create a second image Fourier transform; computing a collection of coordinate pairs from the first and second image Fourier transforms such that at each coordinate pair the values of the first and second image Fourier transforms are likely to have very little aliasing noise; computing an estimate of a linear Fourier phase relation between the-first and second image Fourier transforms using the Fourier phases of the first and second image Fourier transforms at the coordinate pairs in a minimum-least squares sense; and computing the displacements in the x and/or y directions from the linear Fourier phase relationship. Also provided are a computer program having computer readable program code and program storage device having a program of instructions for executing and performing the methods of the present invention, respectively.
摘要翻译：提供了用于记录由子像素位置中的x和/或y位移偏移的第一和第二图像的方法。该方法的优选实现包括以下步骤：将第一图像乘以窗口函数以产生第一窗口化图像; 用傅里叶变换变换第一窗口图像以产生第一图像傅里叶变换; 将第二图像乘以窗口函数以创建第二窗口图像; 用傅立叶变换来变换第二窗口图像以产生第二图像傅里叶变换; 从第一和第二图像傅里叶变换计算坐标对的集合，使得在每个坐标对处，第一和第二图像傅里叶变换的值可能具有非常小的混叠噪声; 使用所述坐标对上的所述第一和第二图像傅里叶变换的傅里叶相位，以最小 - 最小二乘的方式计算所述第一和第二图像付里叶变换之间的线性傅立叶相位关系的估计; 并从线性傅立叶相位关系计算x和/或y方向上的位移。还提供了具有计算机可读程序代码和程序存储装置的计算机程序，其具有分别用于执行和执行本发明的方法的指令程序。

2. 发明申请

US20070166013A1 Methods and apparatus for indexing and archiving encoded audio/video data 有权
标题翻译：索引和归档编码音频/视频数据的方法和设备
公开(公告)号：US20070166013A1
公开(公告)日：2007-07-19
申请号：US11517825
申请日：2006-09-08
申请人： Jay Yogeshwar , Stephen Martucci , Bobby Gupta , Melanie Fendt , Frederick Venzie
发明人： Jay Yogeshwar , Stephen Martucci , Bobby Gupta , Melanie Fendt , Frederick Venzie
IPC分类号： H04N7/26
CPC分类号： G11B27/10 , G06F17/30858 , H04N5/76 , H04N9/7921 , H04N9/8042 , H04N9/8047 , H04N9/8205 , H04N9/8227 , H04N9/8233
摘要： Archival storage and retrieval of audio/video information is described. Audio and/or video information is digitized, compressed and stored in an intermediate archive format (IAF), which preserves the content at a high-enough quality for subsequent retrieval and conversion into various formats required at the time of use or distribution. A single capture operation is performed with ancillary metadata being added to facilitate subsequent searching, indexing and format conversion. Captured data content is catalogued and indexed at or subsequent to the creation of an IAF file that includes the archived information. The IAF includes a family of audio-video digital encoding formats based on public standards. The encoding format used in any particular application is determined at encoding time from information provided by the archive system user. At encoding, the particular encoding scheme is selected to optimize a tradeoff between storage constraints and end use quality requirements.
摘要翻译：描述音频/视频信息的档案存储和检索。音频和/或视频信息被数字化，压缩并以中间归档格式（IAF）存储，其以足够高的质量保留内容以用于随后的检索和转换成使用或分发时所需的各种格式。执行单个捕获操作，其中添加辅助元数据以便于随后的搜索，索引和格式转换。捕获的数据内容在创建包含归档信息的IAF文件或之后进行编目和索引。 IAF包括基于公共标准的音视频数字编码格式系列。根据归档系统用户提供的信息，在编码时确定在任何特定应用中使用的编码格式。在编码时，选择特定编码方案以优化存储约束和最终使用质量要求之间的权衡。

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