Description: The problem of image registration subsumes a number of problems and techniques in multiframe
image analysis, including the computation of optic flow (general pixel-based motion), stereo
correspondence, structure from motion, and feature tracking. We present a new registration
algorithm based on spline representations of the displacement field which can be specialized to
solve all of the above mentioned problems. In particular, we show how to compute local flow,
global (parametric) flow, rigid flow resulting from camera egomotion, and multiframe versions of
the above problems. Using a spline-based description of the flow removes the need for overlapping
correlation windows, and produces an explicit measure of the correlation between adjacent flow
estimates. We demonstrate our algorithm on multiframe image registration and the recovery of 3D
projective scene geometry. We also provide results on a number of standard motion sequences. Platform: |
Size: 486459 |
Author:刘长乐 |
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Description: The problem of image registration subsumes a number of problems and techniques in multiframe
image analysis, including the computation of optic flow (general pixel-based motion), stereo
correspondence, structure from motion, and feature tracking. We present a new registration
algorithm based on spline representations of the displacement field which can be specialized to
solve all of the above mentioned problems. In particular, we show how to compute local flow,
global (parametric) flow, rigid flow resulting from camera egomotion, and multiframe versions of
the above problems. Using a spline-based description of the flow removes the need for overlapping
correlation windows, and produces an explicit measure of the correlation between adjacent flow
estimates. We demonstrate our algorithm on multiframe image registration and the recovery of 3D
projective scene geometry. We also provide results on a number of standard motion sequences. Platform: |
Size: 486400 |
Author:刘长乐 |
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Description: ECE345, Visual-to-Audio Electronic Travel Aid
Code for TM320C54x (v2a.asm) download
This project involves the design and implementation of a audio synthesis device that converts moving images into audio signals. The system is built on a TM320C54x DSP with interface to an IMAQ camera module via the serial port on a PC. Brief description: A LabVIEW VI acquires an image from the IMAQ camera module. It quantizes the image into a 5x5, 3-bit image, and sends the data to the TM320C54x DSP via a serial port. The TM320C54x DSP constructs a 64-tap FIR by combining a series of 64-tap head related transfer functions (HRTF) according to the incoming data, and then filters an input audio signal with this FIR filter, in effect creating a correspondence between the filtered signal and the original image. -ECE345, Visual-to-Audio Electronic Travel Aid Code for TM320C54x (v2a.asm) download This project involves the design and implementation of a audio synthesis device that converts moving images into audio signals. The system is built on a TM320C54x DSP with interface to an IMAQ camera module via the serial port on a PC. Brief description: A LabVIEW VI acquires an image from the IMAQ camera module. It quantizes the image into a 5x5, 3-bit image, and sends the data to the TM320C54x DSP via a serial port. The TM320C54x DSP constructs a 64-tap FIR by combining a series of 64-tap head related transfer functions (HRTF) according to the incoming data, and then filters an input audio signal with this FIR filter, in effect creating a correspondence between the filtered signal and the original image. Platform: |
Size: 3072 |
Author:zhouyu |
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Description: 摄像机标定：确定摄像机位置，属性参数和建立成像模型，以确定空间坐标系中物体点同它在图像平面上象点之间的对应关系。包括确定摄像机内部几何和光学特性（内部参数）和确定摄像机在一个世界坐标系中的三维位置和方向（外部参数）。-Camera Calibration: To determine the camera position, attributes the establishment of imaging model parameters and to determine the spatial coordinates of objects in points with it in the image plane as point correspondence between. Including the identification of the internal camera geometric and optical characteristics (internal parameters) and identify video cameras in a world coordinate system in three-dimensional position and orientation (external parameters). Platform: |
Size: 666624 |
Author:hexiang |
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Description: Apply segmentation to the images to extract the regions in the image and subsequently try and automate this complete procedure of segmentation. Using suitable descriptors of the extracted regions establish correspondence between the regions in the two images.
Given : Monochromatic temporal satellite images.
Platform: |
Size: 151552 |
Author:imran |
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Description: AN INTRODUCTION TO MATRIX MANIPULATION IN MATLAB
The power that MATLAB brings to digital image processing is the extensive set of functions that are available in MATLAB for processing multidimensional arrays, of which matrices (two dimensional numerical arrays) have a one to one correspondence with digital images. This tutorial discusses and illustrates a number of ways used to manipulate matrices. Usually, this is the first step in learning how to apply MATLAB tools to image processing applications.
Platform: |
Size: 152576 |
Author:SS |
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Description: 2-D and 3-D
Image Registration
for Medical, Remote Sensing,
and Industrial Applications
Image registration is the process of determining the point-by-point correspondence
between two images of a scene. By registering two images, the fusion ofmultimodality
information becomes possible, the depth map of the scene can be determined,
changes in the scene can be detected, and objects can be recognized. Platform: |
Size: 4958208 |
Author:lily |
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Description: 人脸姿态估计是指确定输人图像中的人脸在
3D空间中的姿态。姿态与视角有直接的对应关系，因此，姿态估计问题也称为人脸视角估计。人脸姿态估计在人脸识别、计算机游戏、虚拟现实和司机疲劳检测系统等方面都有着广泛的应用。-Face pose estimation is to determine the input image of face gesture in 3D space. Attitude and perspective has a direct correspondence between, therefore, pose estimation problem is also known as face angle estimation. Face Pose Estimation in face recognition, computer games, virtual reality and the driver fatigue detection system and so on are widely used. Platform: |
Size: 392192 |
Author:chning |
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Description: 大量实验表明,提出的方法对同种传感器或者不同传感器图像之间的配准都是有效的。
提出了一种新的基于角点检测的图像配准方法,其核心思想是采用一种快速的
基于图像灰度的角点检测新算法,通过沿圆弧曲线扫描获取角点信息,然后根据这些
角点信息建立图像间角点的对应关系,并由此得到初配准参数,最后通过迭代过程以
提高配准的精度. 理论分析和实验结果表明,该算法对图像间的旋转角度没有限制,
配准精度高而且计算量较小.
-Experiments show that the proposed method on the same kind of sensor or between the different sensor image registration is valid. A new corner detection based image registration method, the core idea is to use a fast gray-based new algorithm for corner detection, scanning through the curve along the arc for corner information, and then based on these corner information to establish image correspondence between the corners, and thus be the beginning of registration parameters, and finally through the iterative process to improve the accuracy of registration. Theoretical analysis and experimental results show that the algorithm is rotation between the image does not limit , registration accuracy and less computation. Platform: |
Size: 36864 |
Author:杨博明 |
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Description: 提出一种基于单目CCD摄像机反求系统的三维数据的获取方法，首先对单目CCD摄像机拍摄的单幅图像进行滤波、细化等手段处理得到单像素宽度的激光条纹，然后建立激光条纹上的像素点与空间上的三维点之间一一对应的函数映射，获取物体的外轮廓信息。-Proposes a single-purpose reverse CCD camera system of three-dimensional data acquisition method, first monocular CCD camera captured a single image filtering, thinning and other means to deal with to get a single pixel width of the laser stripe, and then set up the laser bar pattern on the pixel point and three-dimensional space-one correspondence between the mapping function, the outer contours of the object to obtain information. Platform: |
Size: 338944 |
Author: |
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Description:
卡夫卡是一个图像变形工具。用户加载两个不同的图像，
指定函授点之间使用两个设置
直观的界面，并且可以输出无论是静止图像中途
两者之间的图像或影片的整个过渡。-Kafka is an image-morphing utility. Users load two different images,
specify a set of correspondence points between the two using an
intuitive interface, and can output either a still image partway
between the two images or a movie of the entire transition. Platform: |
Size: 988160 |
Author:7128551 |
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Description: Creates synthetic images to make tests in matlab. Useful for image registration and correspondence problems Platform: |
Size: 1024 |
Author:juan_perrito |
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Description: Abstract—This paper presents a comparative study of two
competing features for the task of finding correspondence points
in consecutive image frames. One is the Harris corner feature
and the other is the SIFT feature. First, consecutive frames are
extracted from video data then two kinds of features are
computed. Second, correspondence points matching will be
found. The results of SIFT key points matching and Harris key
points will be compare and discussed. The comparison based on
the result of implementation video data of outdoor with
difference condition of intensity and angle of view.-Abstract—This paper presents a comparative study of two
competing features for the task of finding correspondence points
in consecutive image frames. One is the Harris corner feature
and the other is the SIFT feature. First, consecutive frames are
extracted from video data then two kinds of features are
computed. Second, correspondence points matching will be
found. The results of SIFT key points matching and Harris key
points will be compare and discussed. The comparison based on
the result of implementation video data of outdoor with
difference condition of intensity and angle of view. Platform: |
Size: 962560 |
Author:bou33aza |
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Description: 用欧拉角表示的飞行器姿态运动学方程在大角度时会出现奇异现象,而采用四元数来
表示,则可以避免这个问题。因此,飞行器运动学方程都采用四元数来表示。而飞行器的控
制规律都采用欧拉角来表示,且欧拉角表示姿态角比起四元数更加形象,更易于被人理解,
所以,在飞行器控制系统仿真设计的时候,需要四元数与欧拉角之间的转换。给定1 个欧拉
角,对应1 个四元数,因而欧拉角到四元数之间这种一一对应的关系使得欧拉角到四元数的
转换比较容易。但是,1 个四元数通常有1 个或者2 个欧拉角与之对应,它们之间不是一一
的对应关系,因而,四元数到欧拉角之间的转换比较困难。一般文献或者参考资料上的转换
仅仅适于欧拉角在- 90°～ + 90°之间的情况[1 ] 。文献[ 2 ,3 ]中给出了滚动轴在- 90°～ + 90°
之间变化,俯仰轴、偏航轴在- 180°～ + 180°之间变化的四元数到欧拉角的转换公式。本文
提出了滚动、俯仰和偏航3 个轴的欧拉角均在- 180°～ + 180°之间取值的全角度转换算法,
经过数字仿真证实,这个算法是完全正确的、而且很实用。-Euler angles of the spacecraft attitude kinematics equation at large angles appear strange phenomenon, and quaternion
, You can avoid this problem. Therefore, the aircraft kinematic equations using quaternion to represent. Aircraft control
The system of law Euler angles and Euler angles attitude angle than the the quaternion more image easier to be understood,
Therefore, in the design of aircraft control system simulation, you need to convert between quaternions and Euler angles. Given an Euler
Angle corresponding to a quaternion, which this one-to-one relationship between the Euler angles to quaternion makes Euler angles to quaternion
Conversion is relatively easy. However, a quaternion usually have one or two corresponding Euler angles between them than eleven
The correspondence relationship, therefore, the quaternion to convert between the Euler angle is relatively difficult. General literature or reference conversion
Only suitable for Euler angles- 90 ° to+ 90 ° betwe Platform: |
Size: 2048 |
Author:yang |
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Description: PointSet-to-PointSet配准是医学图像分析中的一个普遍问题。通常建立在点从图像中提
取出来并用于建立图像之间的空间通信。这种配准类型被看做是基于配准特征的最简单情
况。在一般情况下，到目前为止，基于配准的特征是我们介绍的更加有效的表示亮度的方法。然而，基于配准的特征产生了从图像中确定和提取特征的新问题，这也是一个很大的挑战。-PointSet-to-PointSet registration is a common problem in medical image analysis. It usually
arises in cases where landmarks are extracted from images and are used for establishing the
spatial correspondence between the images. This type of registration can be considered to be
the simplest case of feature-based registration. In general terms, feature-based registration is
more efficient than the intensity based method that we have presented so far. However, feature-base registration brings the new problem of identifying andextracting the features from the
images, which is not a minor challenge. Platform: |
Size: 2048 |
Author:张涛 |
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Description: 主动学习用于遥感图像的最新论文，对应学习主动学习在遥感图像分类有很好的借鉴意义。-Active learning for remote sensing images of the latest papers, correspondence learning active learning in remote sensing image classification have a good reference Platform: |
Size: 2842624 |
Author:DS |
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Description: 单像空间后方交会程序,通过控制点的在大地坐标系中的坐标与图像在图像坐标系中的对应关系，应用共线方程的知识，计算出外方位元Xs,Ys,Zs.-By geodetic coordinate system coordinates and image control point correspondence between the image coordinate system, knowledge application collinear equations to calculate the orientation yuan abroad Xs, Ys, Zs. Platform: |
Size: 16384 |
Author:漂泊万重山 |
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Description: 目前主题回归多模式潜在狄利克雷分配（tr-mmLDA），一个新颖的统计主题模型的图像和视频注释的任务。 在我们的新注释模型的核心是一种新颖的潜变量回归方法来捕获图像或视频特征和注释文本之间的相关性。 我们的方法不是在两个数据模态之间共享一组潜在主题，如在对应关系LDA的公式中，我们的方法引入了回归模块来关联两组主题，其捕获更一般的关联形式，并允许主题的数量 2个数据模态不同。 我们证明tr-mmLDA对2个标准注释数据集的功率：一个5000图像子集的COREL和一个2687图像的LabelMe数据集。 所提出的关联模型示出了与标题茫然性所测量的对应LDA相比改进的性能。-Currently topic regression multi-mode potential Dirichlet Allocation (tr-mmLDA), image and video annotation theme of a novel statistical model task. At the heart of our new annotation model is a novel method to capture latent variable regression correlation of images or video features and comment text. Our approach is not in the data between the two modes share a set of potential topics, such as correspondence between the LDA formula, our method introduces two themes related to the return module, which captures more general form of association, and allow the data relating to the number of two different modes. We prove tr-mmLDA of two standard annotation datasets power: a 5,000-image data sets COREL sub LabelMe and a 2687 image set. Associated with the proposed model shows a title corresponding to the measured loss of improved performance compared to LDA. Platform: |
Size: 1155072 |
Author:祖祖- |
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Search - correspondence image