-
51.发明申请METHOD TO IMPROVE ACCURACY AND RELIABILITY OF MOTION ESTIMATED WITH PHASE CORRELATION 有权提高相位相关运动估计精度和可靠性的方法公开(公告)号：US20120098986A1
公开(公告)日：2012-04-26
申请号：US12912587
申请日：2010-10-26
CPC分类号： H04N5/144 , G06T7/238 , G06T7/262 , G06T2207/10016 , H04N5/235 , H04N19/172 , H04N19/176 , H04N19/521 , H04N19/523 , H04N19/547 , H04N19/577 , H04N19/61
摘要： A method of improving accuracy and reliability of motion estimation is described herein. In one aspect, a 2D neighborhood of phase correlation peak is approximated with an outer-product of two 1D vectors to eliminate the sub-pixel error. In another aspect, estimation of reliability is improved. In yet another aspect, two-pass phase correlation is implemented to eliminate sub-pel motion bias.
摘要翻译： 本文描述了提高运动估计的精度和可靠性的方法。 在一个方面，相位相关峰的2D邻域用两个1D矢量的外积近似，以消除子像素误差。 另一方面，提高了可靠性的估计。 在另一方面，实现双通相位相关以消除子像素运动偏移。
-
52.发明申请公开(公告)号：US20120098985A1
公开(公告)日：2012-04-26
申请号：US12912536
申请日：2010-10-26
CPC分类号： H04N5/145 , G06T7/262 , G06T2207/20021 , G06T2207/20056
摘要： A method and system to improve the performance of phase correlation motion estimation for low-bit-precision implementation are described herein. Phase correlation uses the Fast Fourier Transform (FFT) with operations with infinite-precision constants. Since physical implementations use finite-precision arithmetic, there is some loss in precision relative to the ideal infinite-precision case. In low-complexity implementations, it is desirable to use as few bits as possible, and if the precision is too low, the performance of traditional phase correlation suffers. A pre-processing technique is applied to the data prior to taking the FFT, which minimizes the negative effects of finite precision in the FFT and allows high quality results from phase correlation. The pre-processing step is a content-dependent contrast adjustment that maps the range of the input images' pixel values to the range of input values for the FFT. There is no post-processing required after the FFT to compensate for the pre-processing step.
摘要翻译： 本文描述了一种用于提高低位精度实现的相位运动估计性能的方法和系统。 相位相关使用具有无限精度常数的运算的快速傅里叶变换（FFT）。 由于物理实现使用有限精度算术，相对于理想的无限精度情况，精度有一定的损失。 在低复杂度实现中，期望尽可能少地使用位，如果精度太低，则传统相位相关的性能受损。 在采用FFT之前，将预处理技术应用于数据，这最小化了FFT中有限精度的负面影响，并允许相位相关的高质量结果。 预处理步骤是内容相关的对比度调整，其将输入图像的像素值的范围映射到用于FFT的输入值的范围。 在FFT之后不需要后处理来补偿预处理步骤。
-
53.发明申请公开(公告)号：US20110229056A1
公开(公告)日：2011-09-22
申请号：US12728025
申请日：2010-03-19
申请人： Mark A. Robertson , Ming-Chang Liu
发明人： Mark A. Robertson , Ming-Chang Liu
IPC分类号： G06K9/32
CPC分类号： G06T7/248
摘要： An image alignment method includes computationally efficient methods of achieving high-accuracy local motion estimates by using phase correlation. The method also estimates motion reliability that allows a generic robust model fitting algorithm to produce more accurate results while operating much more efficiently. One of three methods are used to determine sub-pel motion estimation with improved accuracy. Each of the sub-pel motion estimation methods uses phase correlation, and are based on fitting computationally efficient 2-D quadratic surfaces to a phase correlation surface. A pre-filter is applied which shapes the phase correlation surface to enable appropriate fitting to the quadratic surface. Bias is also compensated for prior to applying a sub-pel motion estimation method. The method also estimates the reliability of the sub-pel motion estimates determined using phase correlation.
摘要翻译： 图像对准方法包括通过使用相位相关来实现高精度局部运动估计的计算有效的方法。 该方法还估计运动可靠性，允许通用鲁棒模型拟合算法在更有效地运行时产生更准确的结果。 使用三种方法之一来确定提高精度的子像素运动估计。 每个子像素运动估计方法使用相位相关，并且基于将计算有效的2-D二次曲面拟合到相位相关表面。 应用预滤波器，其形成相位相关表面以使得能够适当地拟合到二次曲面。 在应用子像素运动估计方法之前，偏置也被补偿。 该方法还估计使用相位相关确定的子像素运动估计的可靠性。
-
公开(公告)号：US20110176013A1
公开(公告)日：2011-07-21
申请号：US12689823
申请日：2010-01-19
申请人： Mark Robertson , Ming-Chang Liu
发明人： Mark Robertson , Ming-Chang Liu
CPC分类号： H04N5/145
摘要： A method to estimate segmented motion uses phase correlation to identify local motion candidates and a region-growing algorithm to group small picture units into few distinct regions, each of which has its own motion according to optimal matching and grouping criteria. Phase correlation and region growing are combined which allows sharing of information. Using phase correlation to identify a small number of motion candidates allows the space of possible motions to be narrowed. The region growing uses efficient management of lists of matching criteria to avoid repetitively evaluating matching criteria.
摘要翻译： 估计分段运动的方法使用相位相关来识别局部运动候选，以及区域增长算法将小图像单元分组成几个不同的区域，每个区域根据最优匹配和分组标准具有其自己的运动。 相位相关和区域增长相结合，允许信息共享。 使用相位相关来识别少量运动候选可以使可能的运动的空间变窄。 该地区的增长使用匹配标准列表的有效管理，以避免重复评估匹配标准。
-
公开(公告)号：US20100265313A1
公开(公告)日：2010-10-21
申请号：US12426085
申请日：2009-04-17
申请人： Ming-Chang Liu , Mark Robertson
发明人： Ming-Chang Liu , Mark Robertson
IPC分类号： H04N7/00
CPC分类号： H04N5/232 , G06T3/4038 , H04N5/23238 , H04N5/23248
摘要： Apparatus and method for automatically generating panoramic still photographs from a sequence of images collected during panning. Programming within the camera allows creating the panoramic image output from multiple captured stills and/or video frames without laborious user “stitching”. A sequence of images are captured under control of the camera which span a desired subject area being panned (in any direction) by the user. As the images are being captured, the programming assures that the edges of adjacent images in the sequence sufficiently overlap one another as the desired subject area is being panned, as well as controlling other necessary camera adjustments (e.g., maintaining fixed focus). A set of sequential overlapping image frames is collected and combined to create at least one panoramic still photograph. The user can preferably change settings to control how the images are put together into the panoramic image output.
摘要翻译： 用于在平移期间收集的图像序列中自动生成全景静态照片的装置和方法。 相机内的编程允许创建从多个捕获的静止图像和/或视频帧输出的全景图像，而不需要费力的用户“拼接”。 在照相机的控制下拍摄一系列图像，该照片跨越由用户平移（在任何方向上）的期望的主题区域。 随着图像被捕获，编程确保了序列中相邻图像的边缘彼此充分重叠，因为所需的对象区域被平移，并且控制其它必要的相机调整（例如，保持固定焦点）。 收集并组合一组顺序重叠的图像帧以创建至少一个全景静止照片。 用户可以优选地改变设置以控制如何将图像放在一起进入全景图像输出。
-
公开(公告)号：US07738727B2
公开(公告)日：2010-06-15
申请号：US11464483
申请日：2006-08-14
申请人： Rei-Hong Chang , Ming-Chang Liu , Fang-Mei Lu
发明人： Rei-Hong Chang , Ming-Chang Liu , Fang-Mei Lu
IPC分类号： G06K9/36
CPC分类号： G06T5/009 , G06T2207/20182
摘要： Brightness values of image frames are collected and counted to form a brightness distribution. The brightness distribution of the image frames is compared with predetermined brightness distributions. Brightness values of all pixels of successive image frames are adjusted according to a result of the comparison, so as to improve image contrast.
摘要翻译： 收集并计数图像帧的亮度值以形成亮度分布。 将图像帧的亮度分布与预定亮度分布进行比较。 根据比较结果调整连续图像帧的所有像素的亮度值，以提高图像对比度。
-
公开(公告)号：US07445727B2
公开(公告)日：2008-11-04
申请号：US11530096
申请日：2006-09-08
申请人： Kuo-Len Lin , Tien-Chih Tseng , Ming-Chang Liu , Wen-Jung Liu
发明人： Kuo-Len Lin , Tien-Chih Tseng , Ming-Chang Liu , Wen-Jung Liu
IPC分类号： C09K5/00
CPC分类号： C09K5/14 , Y10T428/25 , Y10T428/26 , Y10T428/263
摘要： A high thermal conductivity thermal interface material compound includes 53% by weight of polyethylene glycol, 42% by weight of silicon carbide, and 5% by weight of lithium ions. The method of fabricating the thermal interface material includes the steps of: filling the above-described compound in a container and blending them to form aggregative compound by a blender; mixing the compound by a rolling machine to disperse the aggregative compound and filling the compound to another container; blending the compound and breaking the air bubble generated thereof, and pumping the air out of the container by a vacuum pump at the same time, to fabricate the high thermal conductivity thermal interface material compound without air bubbles.
摘要翻译： 高导热性热界面材料化合物包括53重量％的聚乙二醇，42重量％的碳化硅和5重量％的锂离子。 制造热界面材料的方法包括以下步骤：将上述化合物填充在容器中并通过混合器混合形成聚集化合物; 通过轧制机混合化合物以分散聚集化合物并将化合物填充到另一容器中; 混合化合物并破坏其产生的气泡，同时通过真空泵将空气泵出容器，以制造高气体导热系数的热界面材料，而无气泡。
-
公开(公告)号：US20070229486A1
公开(公告)日：2007-10-04
申请号：US11308971
申请日：2006-06-01
申请人： Ming-Chang Liu , Chien-Cheng Tu , Kuo-Chi Chen
发明人： Ming-Chang Liu , Chien-Cheng Tu , Kuo-Chi Chen
IPC分类号： G09G5/00
摘要： An apparatus and a method for detecting the sync signal of a data signal are disclosed. The apparatus includes a clamping unit, a subtraction unit and a detection unit. The clamping unit receives the data signal and varies the level of the data signal. The subtraction unit coupled to the clamping unit subtracts the level of the data signal from that of the output of the clamping unit and then outputs the subtracting result. The detection unit coupled to the subtraction unit detects the subtracting result from the subtraction unit and judges the sync signal in the data signal accordingly.
摘要翻译： 公开了一种用于检测数据信号的同步信号的装置和方法。 该装置包括夹紧单元，减法单元和检测单元。 夹紧单元接收数据信号并改变数据信号的电平。 耦合到钳位单元的减法单元从钳位单元的输出中减去数据信号的电平，然后输出减法结果。 耦合到减法单元的检测单元检测来自减法单元的减法结果，并相应地判断数据信号中的同步信号。
-
公开(公告)号：US20070223814A1
公开(公告)日：2007-09-27
申请号：US11464483
申请日：2006-08-14
申请人： Rei-Hong Chang , Ming-Chang Liu , Fang-Mei Lu
发明人： Rei-Hong Chang , Ming-Chang Liu , Fang-Mei Lu
CPC分类号： G06T5/009 , G06T2207/20182
摘要： Brightness values of image frames are collected and counted to form a brightness distribution. The brightness distribution of the image frames is compared with predetermined brightness distributions. Brightness values of all pixels of successive image frames are adjusted according to a result of the comparison, so as to improve image contrast.
摘要翻译： 收集并计数图像帧的亮度值以形成亮度分布。 将图像帧的亮度分布与预定亮度分布进行比较。 根据比较结果调整连续图像帧的所有像素的亮度值，以提高图像对比度。
-
60.发明申请公开(公告)号：US20070216955A1
公开(公告)日：2007-09-20
申请号：US11419749
申请日：2006-05-22
申请人： Ming-Chang Liu , Rei-Hong Chang
发明人： Ming-Chang Liu , Rei-Hong Chang
IPC分类号： G06F15/00
CPC分类号： H04N1/405
摘要： Selecting a corresponding procedure of dithering according to a general pattern of gray levels of sub-pixels of each color of an input image. This will enable the input image to be displayed on a display with a lower bit depth.
摘要翻译： 根据输入图像的每种颜色的子像素的灰度级的一般图案来选择相应的抖动程序。 这将使输入图像显示在具有较低位深度的显示器上。
-
-
-
-
-
-
-
-
-
搜索结果
108 条记录 (耗时 0.03 秒)
