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Author: Changming Sun Publisher: Springer ISBN: 9780387954240 Category : Computers Languages : en Pages : 270
Book Description
Computer vision problems are much larger than ever before. One way to satisfy demand is to design more efficient and clever algorithms that optimize computations in an existing processor. Such fast algorithms are becoming increasingly important for tele-reality, interactive media and visual serving applications. This book presents fast and reliable algorithms for dense stereo matching – for every point on the image – and optical-flow estimations using a general language, such as C, rather than dedicated hardware implementation. Techniques described are: fast algorithms for similarity measure, use of subregioning technique to expedite similarity calculation, multiresolution scheme, fast 3-D surface technique for stereo matching, and stereo matching using warping. Fast Algorithms for Stereo Matching is a useful reference for academics, professionals, researchers, practitioners, and advanced graduate students in the areas of computer vision, digital photogrammetry, and 3-D video coding.
Author: Changming Sun Publisher: Springer ISBN: 9780387954240 Category : Computers Languages : en Pages : 270
Book Description
Computer vision problems are much larger than ever before. One way to satisfy demand is to design more efficient and clever algorithms that optimize computations in an existing processor. Such fast algorithms are becoming increasingly important for tele-reality, interactive media and visual serving applications. This book presents fast and reliable algorithms for dense stereo matching – for every point on the image – and optical-flow estimations using a general language, such as C, rather than dedicated hardware implementation. Techniques described are: fast algorithms for similarity measure, use of subregioning technique to expedite similarity calculation, multiresolution scheme, fast 3-D surface technique for stereo matching, and stereo matching using warping. Fast Algorithms for Stereo Matching is a useful reference for academics, professionals, researchers, practitioners, and advanced graduate students in the areas of computer vision, digital photogrammetry, and 3-D video coding.
Author: Wenxian Hong Publisher: ISBN: Category : Languages : en Pages : 117
Book Description
Stereo matching is an actively researched topic in computer vision. The goal is to recover quantitative depth information from a set of input images, based on the visual disparity between corresponding points. This thesis investigates several fast and robust techniques for the task. First, multiple stereo pairs with different baselines may be meaningfully combined to improve the accuracy of depth estimates. In multibaseline stereo, individual pairwise similarity measures are aggregated into a single evaluation function. We propose the novel product-of-error-correlation function as an effective example of this aggregate function. By imposing a common variable, inverse distance, across all stereo pairs, the correct values are reinforced while false matches are eliminated. Next, in a two-view stereo context, the depth estimates may also be made more robust by accounting for foreshortening effects. We propose an algorithm that allows a matching window to locally deform according to the surface orientation of the imaged point. The algorithm then performs correlation in multiple dimensions to simultaneously determine the most probable depth and tilt. The 2D surface orientation search may be made more efficient and robust by separating into two 1D searches along the epipolar lines of two stereo pairs. Moreover, by organizing the multi-dimensional correlation to avoid redundant pixel comparisons or using numerical minimization methods, greater efficiency may be achieved. Finally, we propose an iterative, randomized algorithm which can significantly speed up the matching process. The key insights behind the algorithm are that random guesses for correspondences can often produce some good disparity matches, and that these matches may then be propagated to nearby pixels assuming that disparity maps are piecewise smooth. Such a randomized algorithm converges within a small number of iterations and accurately recovers disparity values with relative computational efficiency. All three techniques developed are described analytically and evaluated empirically using synthetic or real image datasets to demonstrate their superior performance.
Author: Ming Xie Publisher: Springer ISBN: 3642108172 Category : Computers Languages : en Pages : 1315
Book Description
The market demands for skills, knowledge and personalities have positioned robotics as an important field in both engineering and science. To meet these challenging - mands, robotics has already seen its success in automating many industrial tasks in factories. And, a new era will come for us to see a greater success of robotics in n- industrial environments. In anticipating a wider deployment of intelligent and auto- mous robots for tasks such as manufacturing, eldercare, homecare, edutainment, search and rescue, de-mining, surveillance, exploration, and security missions, it is necessary for us to push the frontier of robotics into a new dimension, in which motion and intelligence play equally important roles. After the success of the inaugural conference, the purpose of the Second Inter- tional Conference on Intelligent Robotics and Applications was to provide a venue where researchers, scientists, engineers and practitioners throughout the world could come together to present and discuss the latest achievement, future challenges and exciting applications of intelligent and autonomous robots. In particular, the emphasis of this year’s conference was on “robot intelligence for achieving digital manufact- ing and intelligent automations. ” This volume of Springer’s Lecture Notes in Artificial Intelligence and Lecture Notes in Computer Science contains accepted papers presented at ICIRA 2009, held in Singapore, December 16–18, 2009. On the basis of the reviews and recommendations by the international Program Committee members, we decided to accept 128 papers having technical novelty, out of 173 submissions received from different parts of the world.
Author: Daniel Scharstein Publisher: Springer ISBN: 3540487255 Category : Computers Languages : en Pages : 173
Book Description
Image-based rendering, as an area of overlap between computer graphics and computer vision, uses computer vision techniques to aid in sythesizing new views of scenes. Image-based rendering methods are having a substantial impact on the field of computer graphics, and also play an important role in the related field of multimedia systems, for applications such as teleconferencing, remote instruction and surgery, virtual reality and entertainment. The book develops a novel way of formalizing the view synthesis problem under the full perspective model, yielding a clean, linear warping equation. It shows new techniques for dealing with visibility issues such as partial occlusion and "holes". Furthermore, the author thoroughly re-evaluates the requirements that view synthesis places on stereo algorithms and introduces two novel stereo algorithms specifically tailored to the application of view synthesis.
Author: Domingo Mery Publisher: Springer ISBN: 3540771298 Category : Computers Languages : en Pages : 981
Book Description
This book constitutes the refereed proceedings of the Second Pacific Rim Symposium on Image and Video Technology, PSIVT 2007, held in Santiago, Chile, in December 2007. The 75 revised full papers presented together with four keynote lectures were carefully reviewed and selected from 155 submissions. The symposium features ongoing research including all aspects of video and multimedia, both technical and artistic perspectives and both theoretical and practical issues.
Author: Naim Dahnoun Publisher: John Wiley & Sons ISBN: 1119003822 Category : Technology & Engineering Languages : en Pages : 648
Book Description
The only book to offer special coverage of the fundamentals of multicore DSP for implementation on the TMS320C66xx SoC This unique book provides readers with an understanding of the TMS320C66xx SoC as well as its constraints. It offers critical analysis of each element, which not only broadens their knowledge of the subject, but aids them in gaining a better understanding of how these elements work so well together. Written by Texas Instruments’ First DSP Educator Award winner, Naim Dahnoun, the book teaches readers how to use the development tools, take advantage of the maximum performance and functionality of this processor and have an understanding of the rich content which spans from architecture, development tools and programming models, such as OpenCL and OpenMP, to debugging tools. It also covers various multicore audio and image applications in detail. Additionally, this one-of-a-kind book is supplemented with: A rich set of tested laboratory exercises and solutions Audio and Image processing applications source code for the Code Composer Studio (integrated development environment from Texas Instruments) Multiple tables and illustrations With no other book on the market offering any coverage at all on the subject and its rich content with twenty chapters, Multicore DSP: From Algorithms to Real-time Implementation on the TMS320C66x SoC is a rare and much-needed source of information for undergraduates and postgraduates in the field that allows them to make real-time applications work in a relatively short period of time. It is also incredibly beneficial to hardware and software engineers involved in programming real-time embedded systems.
Author: Changming Sun
Author: Changming Sun
Author: Wenxian Hong
Author: Andrew F. Laine
Author: 
Author: Ming Xie
Author: Daniel Scharstein
Author: Domingo Mery
Author: Naim Dahnoun
Author: 何孝威
Author: 朱柄麟