Motion features

Xem 1-20 trên 30 kết quả Motion features
  • A novel video smoke detection method using both color and motion features is presented. The result of optical flow is assumed to be an approximation of motion field. Background estimation and color-based decision rule are used to determine candidate smoke regions. The Lucas Kanade optical flow algorithm is proposed to calculate the optical flow of candidate regions. And the motion features are calculated from the optical flow results and use to differentiate smoke from some other moving objects.

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  • Design for assembly is a process by which products are designed with ease of assembly in mind. If a product contains fewer parts it will take less time to assemble, thereby reducing assembly costs. In addition, if the parts are provided with features which make it easier to grasp, move, orient and insert them, this will also reduce assembly time and assembly costs. The reduction of the number of parts in an assembly has the added benefit of generally reducing the total cost of parts in the assembly. This is usually where the major cost benefits of the application of...

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  • This book describes high-speed precision motion control technologies which are developed and applied to hard disk drives (HDDs). The first feature of this book is that all the editors and the authors are engineers and professors who are directly engaged in the study and development of HDD servo control. Each author describes the control technologies that he developed, and most of these technologies have already been successfully applied to mass production of HDDs.

    pdf315p nguyenthai_thinh 16-03-2013 54 20   Download

  • Image formation, feature detection and matching, segmentation, feature-based alignment, structure from motion is the main content of the book "Computer vision algorithms and applications". Invite you to consult the detailed content lectures to capture details.

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  • The applications of underwater vehicles have shown a dramatic increase in recent years, such as, mines clearing operation, feature tracking, cable or pipeline tracking and deep ocean exploration. According to different applications, the mechanical and electrical configuration and shape of an underwater vehicle are different. For instance, manipulators are necessary when doing mines clearing operation or some other tasks which need to deal with environment.

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  • Picture Association of America, the MPAA), and appointed as its president Will H. Hays, the former postmaster general in the administration of Warren G. Harding and an upright, teetotaling elder of the Presbyterian Church. Hays put the industry on a solid financial basis with his contacts on Wall Street, kept federal censors at bay with his influence in Washington, D.C, and placated the moral guardians with soothing words and Protestant probity.

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  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article Telescopic Vector Composition and Polar Accumulated Motion Residuals for Feature Extraction in Arabic Sign Language Recognition

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  • In our mobile work culture, we see corporate staff, from executive to individual contributor, working beyond the boundaries of the traditional office environment. The concept of working “any time and anywhere” has become popular. To support this concept, many organizations are adopting mobile solutions. As employees use these solutions, their expectations are increasing—employees want not only access to information, but full participation in business from any location whenever it is required.

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  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article Motion Entropy Feature and Its Applications to Event-Based Segmentation of Sports Video

    pdf8p sting09 21-02-2012 16 3   Download

  • Another of the initial ideas had the welcome mat track the motion of people across it and respond to this in some way. This was first tried using amat with electric-field-sensing electrodes and a projected im- age that followed the path of the person walking across it. Issues of robustness for this tracking method caused this idea to be dropped as well.

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  • This five-step guide details the recommended process for building software-defined test systems from start to finish. It presents these test engineering best practices in a practical and reusable manner and features specific examples used by industry-leading test engineering teams. It also references a scalable, software-defined production test system developed by the NI test engineering team for testing I/O modules for the NI CompactRIO platform, which is shown in Figure 3.

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  • Phosphoglucosamine mutase (PNGM) is a bacterial enzyme that partici-pates in the peptidoglycan biosynthetic pathway. Recent crystal structures of PNGM from two bacterial pathogens,Bacillus anthracisandFrancisella tularensis, have revealed key structural features of this enzyme for the first time.

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  • An efficient smoke detection algorithm on color video sequences obtained from a stationary camera is proposed. Our algorithm considers dynamic and static features of smoke and composed of basic steps: preprocessing; slowly moving areas and pixels segmentation in a current input frame based on adaptive background subtraction; merge slowly moving areas with pixels into blobs; classification of the blobs obtained before.

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  • Located at the interface of the geosphere, biosphere, hydrosphere and atmosphere, land is important for an understanding of both the natural environment process and those affected by human activities.

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  • Programmatic Tweening Reproducing Timeline Tweens with ActionScript The last thing we want to mention in this chapter is a companion website post about a feature that’s a bit out of the ordinary. As such, we intend it to be an additional resource for your continued study outside this book. In addition to scripting motion solely with code, it’s also possible to rebuild a Flash Professional timeline motion tween using ActionScript.

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  • This page intentionally left blank Download from www.wowebook.com iPhone Device Overview THIS CHAPTER WILL EXPLORE the iPhone device with an emphasis on the technologies and hardware that define the iPhone user experience, such as the multi-touch display, motion sensors, and location information. In addition to explaining what’s possible with the device, this chapter will provide best practices based on recognized usability principles and Apple’s iPhone Human Interface Guidelines.

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  • MPEG-7 will define a certain set of descriptors to describe these features. For example, the color histogram can be a very suitable descriptor for color characteristics of an image, and motion vectors (commonly available in compressed video bitstreams) form a useful descriptor for motion characteristics of a video clip. MPEG-7 also uses the concept of description scheme (DS), which means a framework that defines the descriptors and their relationships. Hence, the descriptors are the basis of a description scheme. Description then implies an instantiation of a description scheme.

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  • Multi-robot systems (MRS) are becoming one of the most important areas of research in Robotics, due to the challenging nature of the involved research and to the multiple potential applications to areas such as autonomous sensor networks, building surveillance, transportation of large objects, air and underwater pollution monitoring, forest fire detection, transportation systems, or search and rescue after large-scale disasters.

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  • You can easily create complex motion with articulations—joints between linked objects—with the feature called inverse kinematics. You can also morph—create organic changes in shapes—with shape tweens. 151 Download from Library of Wow! ebook getting Started You’ll start the lesson by viewing the animated crane and floating buoy that you’ll create as you learn about articulated motion and morphing in Flash. You’ll also be animating a tentacle of an octopus. 1 Double-click the 05End.swf file in the Lesson05/05End folder to play the animation. Double-click the 05ShapeIK_End.

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  • FIGURE 2.16 Google Search activates voice search using the proximity sensor. MOTION SENSOR NOTE iPhone 4 has a three-axis gyroscope. Paired with the accelerometer, it makes the iPhone capable of advanced motion sensing, such as user acceleration, angular velocity, and rotation rate. One of the most widely used sensors is the accelerometer, also known as a “motion” sensor. The accelerometer can detect the iPhone’s orientation and adjust the display accordingly.

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