Description: 实现大规模室外场景渲染技术,本程序使用基于严格的四叉树的方法建立一个LOD算法，并用该LOD算法实现了一个视点相关的动态多分辨率地形。采用多遍地面纹理，亮度图等技术来照明场景。同时DEMO还实现了Billboard,运动模糊，的功能。程序采用C++，模块化的结构让程序具有很高的可扩展性。
-achieve large-scale outdoor scene rendering technology, the use of procedures based on strict quadtree methods to establish a LOD algorithm, and the LOD algorithm with a view to achieve the dynamic multi-resolution terrain. Many times using ground texture, brightness map technology to lighting scenes. DEMO while also achieving the Billboard, motion blur, function. Adoption of C, the modular structure allows procedures with high scalability. Platform: |
Size: 619 |
Author:小李 |
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Description: SimNatureExe代码补丁本程序使用基于严格的四叉树的方法建立一个LOD算法，并用该LOD算法实现了一个视点相关的动态多分辨率地形。采用多遍地面纹理，亮度图等技术来照明场景。同时DEMO还实现了Billboard,运动模糊，的功能。程序采用C++，模块化的结构让程序具有很高的可扩展性。
-SimNatureExe patch the code to use based on the strict procedures of the quadtree methods to establish a LOD algorithm, and the LOD algorithm with a view to achieve the dynamic multi-resolution terrain. Many times using ground texture, brightness map technology to lighting scenes. DEMO while also achieving the Billboard, motion blur, function. Adoption of C, the modular structure allows procedures with high scalability. Platform: |
Size: 10324 |
Author:小李 |
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Description: 深入浅出介绍计算机视觉的最新动态。内容包括：
* Camera calibration using 3D objects, 2D planes, 1D lines, and self-calibration
* Extracting camera motion and scene structure from image sequences
* Robust regression for model fitting using M-estimators, RANSAC, and Hough transforms
* Image-based lighting for illuminating scenes and objects with real-world light images
* Content-based image retrieval, covering queries, representation, indexing, search, learning, and more
* Face detection, alignment, and recognition--with new solutions for key challenges
* Perceptual interfaces for integrating vision, speech, and haptic modalities
* Development with the Open Source Computer Vision Library (OpenCV)
* The new SAI framework and patterns for architecting computer vision applications Platform: |
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Author:kankan |
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Description: 实现大规模室外场景渲染技术,本程序使用基于严格的四叉树的方法建立一个LOD算法，并用该LOD算法实现了一个视点相关的动态多分辨率地形。采用多遍地面纹理，亮度图等技术来照明场景。同时DEMO还实现了Billboard,运动模糊，的功能。程序采用C++，模块化的结构让程序具有很高的可扩展性。
-achieve large-scale outdoor scene rendering technology, the use of procedures based on strict quadtree methods to establish a LOD algorithm, and the LOD algorithm with a view to achieve the dynamic multi-resolution terrain. Many times using ground texture, brightness map technology to lighting scenes. DEMO while also achieving the Billboard, motion blur, function. Adoption of C, the modular structure allows procedures with high scalability. Platform: |
Size: 1571840 |
Author:小李 |
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Description: 本文提出了一种新型水下小型爬行视频检测机器人的设计方案，重点解决了结构设计中有关密封方式、电机驱动选型、小型化等问题。在控制方面从轮式爬行移动机器人(WMR)的体系结构出发，重点设计了机器人移动控制系统的硬件、软件平台。
- In view of the Architecture of Wheeled Mobile Robot, this paper emphasizes on the design of hardware and software platform based on control system.Firstly, A
whole control model is given after analyzing the wheeled structure with nonholonomic constraints and the model of DC servo-motor building. Secondly, We develop a motion control system using AT90S8515 microcontroller.
Platform: |
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Author:jiajie |
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Description: Mpc02运动控制卡应用范例.
MPC02 控制卡是基于PC 机PCI 总线的步进电机或数字式伺服电机的上位控制单元，它与PC 机构成主从式控制结构,可控制3 轴步进电机或数字式伺服电机.-Application Mpc02 example of motion control card. MPC02 Control Card is a PC-based PCI-bus stepper motor or digital servo motor control unit of the upper, which agencies and PC into a master-slave control structure, can be controlled 3-axis stepper motor or digital servo motor. Platform: |
Size: 1681408 |
Author:谢先生 |
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Description: 刚性位置变化计算，输入物体在空间坐标系中的坐标，以及旋转向量和平移向量，计算其在摄像机坐标系中的坐标。- [Y,dYdom,dYdT] = rigid_motion(X,om,T)
Computes the rigid motion transformation Y = R*X+T, where R = rodrigues(om).
INPUT: X: 3D structure in the world coordinate frame (3xN matrix for N points)
(om,T): Rigid motion parameters between world coordinate frame and camera reference frame
om: rotation vector (3x1 vector) T: translation vector (3x1 vector)
OUTPUT: Y: 3D coordinates of the structure points in the camera reference frame (3xN matrix for N points)
dYdom: Derivative of Y with respect to om ((3N)x3 matrix)
dYdT: Derivative of Y with respect to T ((3N)x3 matrix)
Definitions:
Let P be a point in 3D of coordinates X in the world reference frame (stored in the matrix X)
The coordinate vector of P in the camera reference frame is: Y = R*X+ T
where R is the rotation matrix corresponding to the rotation vector om: R = rodrigues(om)
Important function called within that program:
rodrigues.m: Computes the Platform: |
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Author:shuang |
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Description: The ElastoDynamics Toolbox is a MATLAB toolbox to model wave propagation
in layered media. It is based on the direct stiffness method and the thin layer
method [10, 12]. The toolbox can be used to solve a variety of problems governed
by wave propagation in the soil:
Site amplification Site amplification is an important issue in the assessment of
the seismic hazard at sites where the top soil layers are particularly soft. In such
cases, the seismic motion at the surface can be much higher than the outcrop
motion due to resonance of the soft layers-This chapter describes how to start using the ElastoDynamics Toolbox (EDT) for
MATLAB. The chapter is organized as follows:
About the ElastoDynamics Toolbox (p. 1)
The ElastoDynamics Toolbox for MATLAB is briefly introduced.
Obtaining and installing EDT (p. 1)
This section explains where to get EDT and how to install it.
Terms of use (p. 3)
The terms and conditions to use of EDT are summarized. It is shown how to refer
to EDT in scientific publications.
Scope and structure of this document (p. 3)
The aim of this user’s guide is delineated and the organization of the text is
clarified. Platform: |
Size: 25600 |
Author:侯强 |
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Description: 实现大规模室外场景渲染技术,本程序使用基于严格的四叉树的方法建立一个LOD算法，并用该LOD算法实现了一个视点相关的动态多分辨率地形。采用多遍地面纹理，亮度图等技术来照明场景。同时DEMO还实现了Billboard,运动模糊，的功能。程序采用C++，模块化的结构让程序具有很高的可扩展性。--achieve large-scale outdoor scene rendering technology, the use of procedures based on strict quadtree methods to establish a LOD algorithm, and the LOD algorithm with a view to achieve the dynamic multi-resolution terrain. Many times using ground texture, brightness map technology to lighting scenes. DEMO while also achieving the Billboard, motion blur, function. Adoption of C, the modular structure allows procedures with high scalability. Platform: |
Size: 303104 |
Author:佟杰 |
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Description: 主要阐述了一种适用于户外AR系统(augmented reality system)的注册方法；利用标记物计算初
始结构参数，并确定初始的共面自然特征点集；在后续的运行过程中, 通过相关系数法在相邻的两帧画面
中寻找候选匹配自然特征点对；采用了基于标记物提供的共面约束和 RANSAC（RANdom Sample
Consensus）算法相结合的方法，从这些候选匹配点中选出满足共面条件的匹配点对；计算这些共面点所对
应的单应矩阵(Homography)，进而求解相机的运动参数，完成虚拟物体的注册。该方法特别适合没有显式
平面结构的室外环境。 -In this paper, a kind of registration method applicable to outdoor AR system (augmented reality system)
is elaborated. The plane marker is employed in calculating initial structure parameter natural features are
tracked from the two adjacent frame through correlation and taken as candidate matches. A method Based on the
constraint of marker and RANSAC (Random Sample Consensus) is adopted, so that good matches, which satisfy
coplanar condition, are selected out of the candidate matches. Through the homographic matrix provided from
the coplanar points, we could work out motion parameter of the camera, and finally finish registration of virtual
objects. The registration method is most appropriate for outdoor surroundings with obscure plane structure. Platform: |
Size: 826368 |
Author:xiaofang |
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Description: In this paper, in control theory, sliding mode control, or SMC, is a form of variable structure control (VSC). It is a nonlinear control method that alters the dynamics of a nonlinear system by application of a high-frequency switching control. The state-feedback control law is not a continuous function of time. Instead, it switches from one continuous structure to another based on the current position in the state space. Hence, sliding mode control is a variable structure control method. The multiple control structures are designed so that trajectories always move toward a switching condition, and so the ultimate trajectory will not exist entirely within one control structure. Instead, the ultimate trajectory will slide along the boundaries of the control structures. The motion of the system as it slides along these boundaries is called a sliding mode and the geometrical locus consisting of the boundaries is called the sliding (hyper) surface Platform: |
Size: 201728 |
Author:deep |
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Description: In this paper, in control theory, sliding mode control, or SMC, is a form of variable structure control (VSC). It is a nonlinear control method that alters the dynamics of a nonlinear system by application of a high-frequency switching control. The state-feedback control law is not a continuous function of time. Instead, it switches from one continuous structure to another based on the current position in the state space. Hence, sliding mode control is a variable structure control method. The multiple control structures are designed so that trajectories always move toward a switching condition, and so the ultimate trajectory will not exist entirely within one control structure. Instead, the ultimate trajectory will slide along the boundaries of the control structures. The motion of the system as it slides along these boundaries is ca Platform: |
Size: 201728 |
Author:deep |
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Description: 2.1.0版重新架构了引擎，引入了三种新的连接（Joint），并重写了broadphase（广域碰撞检测），加入了kinematic物体（无质量的运动物体），Edge Shape(线段物体)，Raycast(光线跟踪)等。具体可参考http://box2dflash.boristhebrave.com/docs/2.1a/updating。
在2.0.1版本中我极少考虑到类的封装，为的是编程和用户使用方便，但结构很不好，在这个版本中进行了修正。另外，这个版本的运行效率理论上应该比上个版本高，因为我将Contact(接触类，运动仿真中不断被生成或销毁)由class改为了record。 -2.1.0 version of the engine re-architecture, the introduction of three new connection (Joint), and rewrite the broadphase (WAN collision detection), joined the kinematic objects (moving objects without the quality), Edge Shape (line objects), Raycast (ray tracing) and so on. Specifically refer to http://box2dflash.boristhebrave.com/docs/2.1a/updating. In the 2.0.1 version to the class, I rarely take into account the package, as is programming and user convenience, but the structure is very bad, in this version was modified. In addition, this version of the operating efficiency should theoretically higher than the previous version, because I will Contact (contacts class, motion simulation are continuously being generated or destroyed) by the class to the record. Platform: |
Size: 523264 |
Author:yuanyeye |
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Description: 就如何从视频序列中分割出具有语义意义的运动对象 ,本文提出了一种自动的基于背景的运动对象分割算法 ,利用颜色、形状和灰度等特征对第一帧图像进行初步分割 ,然后根据帧间运动信息构造背景图像 ,最后以背景图像和帧差图像作为参考图像 ,对同一场景中的所有视频帧进行快速可靠的分割 。-On how to split out from the video sequences of moving objects with semantic meaning, this paper presents a context-based automatic segmentation of moving objects, using color, shape and gray-scale image features such as the initial frame of the first split, then inter-frame motion information structure background image, background image and finally the frame difference image as a reference image of the same scene in all the video frames for fast and reliable segmentation. Platform: |
Size: 592896 |
Author:charles |
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Description: 硕士毕业论文《MPEG4-ASP视频编码器算法设计
及DSP实现》：研究和实现了MPEG4-ASP视频编码标准的关键算法——运动估计和全局运动估计，掌握了视频压缩编码的核心技术以及在通用DSP平台上实现视频编码器的技术要点并实现了编码器的原型，为MPEG4-ASP编码在嵌入式领域的实际应用和开发奠定了基础。
-In chapter one and two, we mainly introduce the basic principle of video compression and the video compression standard up to now. In chapter three, we introduce the profile/level in the mpeg4 standard and focus on the discussion of new charcters. In chapter four, we make a detai research and improvement on the key arithmetic module in MPEG4—Motion Mstimation and Globle Motion Estimation, and adopt improved PMVFAST method and a motion vector based no-iterative global motion estimation method in the codec. The experiment proves that the choosed methods are much more efficient than traditional ones. In chapter five, we discuss the DSP implementation of MPEG4-ASP video codec. Considering the hardware platform, we do the software structure design, data movement and memory, cache arrangement. We also do the software pipeline and assmble language optimization. The encoder now can get the achievement of encoding the CIF format frames 20fps. In the last part of the paper, we make a short conc Platform: |
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Author:刘洛丹 |
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Description: 通过labview实现在solidwork下对3D运动你结构的仿真，旋转及直线运动的实现。-Labview achieved by 3D movement in solidwork under the structure of your simulation, rotary and linear motion to achieve. Platform: |
Size: 7747584 |
Author:蔡文兵 |
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Description: COLMAP is a general-purpose Structure-from-Motion (SfM) and Multi-View Stereo (MVS) pipeline with a graphical and command-line interface. It offers a wide range of features for reconstruction of ordered and unordered image collections. The software is licensed under the GNU General Public License. Platform: |
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Author:qianxilong
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Description: contains c++ and matlab code files for deleting or adding elements into queue. this is very useful for structure for motion kind of work Platform: |
Size: 17408 |
Author:vengalappa
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Description: 3D点云重建 3D点云重建Berkeley SfM is a structure from motion library created to explore new solutions to challenging 3D reconstruction problems (large scale, indoors, incremental, homogeneously textured, etc.). It is developed by(Structrue From Motion for Education Purpose
Version 2 @ 2014
Written by Jianxiong Xiao (MIT License)
This code demonstrates how a traditional structure from motion pipeline is done and how to compute a dense point cloud by matching propagation in a simplest way. It is mainly designed for teaching a computer vision lecture at Princeton. Please check the slides and the homework assignment together with this code release. Although it is for education purpose, it is implemented in a nice way that it actually works for real photos. It is just probably quite slow compared to more optimized system, such as Bundler from Noah Snavely.
Usage: run SFMedu2.m in Matlab.
Acknowledgement: Thanks for Fisher Yu for bug fixing and feedback. We also thanks many people for making their functions publicly available online. Note that the third party library may have different licenses that you need to follow. We include them for the convenience for the users and don't imply any copyright issues.) Platform: |
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Author:fangyz |
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Description: COLMAP开源源码
COLMAP是一种通用的动态结构（SfM）和多视图立体声（MVS）管道，具有图形和命令行界面。可以方便的对一系列二维图片进行三维重建不用对摄像机进行标定，只需要从不同角度对重建场景或物体进行拍摄得到一系列图像作为输入。(Colmap open source
COLMAP is a general-purpose Structure-from-Motion (SfM) and Multi-View Stereo (MVS) pipeline with a graphical and command-line interface. It is convenient to perform three-dimensional reconstruction on a series of two-dimensional images without calibrating the camera. It is only necessary to shoot a reconstructed scene or object from different angles to obtain a series of images as input.) Platform: |
Size: 40960 |
Author:杨火火 |
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Search - structure and motion