作者：Yan Sun[著]
页数：111页
出版社：东南大学出版社
出版日期：2023
ISBN：9787576604979
电子书格式：pdf/epub/txt
内容简介
本书介绍了如何检测视频中的高阶运动场、高阶运动特征特性，以及相关应用场景，为研究人员和研究生在计算机视觉中分析运动带来了一个新的视角。本书展示了计算机视觉中，高阶运动特征的检测以及区分不同类型运动方面的能力，为今后的进一步研究和应用提供了理论基础。
目录
Chapter 1 Overview
Chapter 2 Describing Motion in Computer Images’ Stream: Optical Flow
2.1 Overview
2.2 Optical Flow
2.2.1 Data Term
2.2.2 Prior Term
2.2.3 Learning Methods
2.3 Selected Optical Flow Algorithms
2.3.1 Differential Method
2.3.2 Region-Based Method
2.3.3 Dense Optical Flow
2.3.4 DeepFlow
2.4 Preparation for Performance Quantify of Optical Flow Algorithms
2.4.1 Synthetic Images with Explicit Motion
2.4.2 Flow Visualization
2.4.3 Flow Error Measurements
2.5 Performance Comparison of Optical Flow Algorithms on Synthetic Images
Chapter 3 Analysing Acceleration in Computer Images’ Stream
3.1 Overview
3.2 Estimation of Acceleration Flow
3.2.1 Recovering Acceleration from Optical Flow
3.2.2 Approximating the Derivatives
3.2.3 Analysing Acceleration Algorithm on Image Sequences
3.3 Estimating Acceleration Flow via Other Flow Estimation Methods
3.3.1 A More Practical Approach
3.3.2 Evaluating Acceleration Algorithms on Synthetic Images
3.3.3 Comparison between Differential and Variational Acceleration
3.4 Tangential and Radial Acceleration
3.4.1 Decomposing the Resultant Acceleration
3.4.2 Radial and Tangential Acceleration Fields on Image Sequences
3.5 Conclusion
Chapter 4 Jerk and High-Order Motion in Computer Images’ Streams
4.1 Overview
4.2 Jerk, Snap and High-Order Motion in Kinematics
4.3 Jerk and Snap Field Estimation
4.4 Applying Multi-Order Flow Fields to Synthetic and Real Images
4.5 Conclusion
Chapter 5 Detecting Heel Strikes for Gait Analysis through High-Order Motion Flow
5.1 Overview
5.2 Detecting Heel Strikes through Radial Acceleration
5.2.1 Gait Analysis
5.2.2 Heel Strike Detection for Gait Analysis
5.2.3 The Acceleration Pattern on Gait
5.2.4 Strike Position Estimation and Verification
5.3 Gait Databases
5.3.1 The Large Gait Database
5.3.2 CASIA Gait Database
5.3.3 The OU-ISIR Gait Database
5.4 Experimental Results
5.4.1 Key Frame Detection
5.4.2 Heel Strike Position Verification
5.4.3 Detection Performance
5.4.4 Robustness of Heel Strike Detection Approaches
5.4.5 Detecting Heel Strikes via Snap and Jerk
5.5 Discussion
5.6 Conclusion
Chapter 6 More Potential Applications via High-Order Motion
6.1 Scene Segmentation
6.2 Gait Analysis
References
Chapter 2 Describing Motion in Computer Images’ Stream: Optical Flow
2.1 Overview
2.2 Optical Flow
2.2.1 Data Term
2.2.2 Prior Term
2.2.3 Learning Methods
2.3 Selected Optical Flow Algorithms
2.3.1 Differential Method
2.3.2 Region-Based Method
2.3.3 Dense Optical Flow
2.3.4 DeepFlow
2.4 Preparation for Performance Quantify of Optical Flow Algorithms
2.4.1 Synthetic Images with Explicit Motion
2.4.2 Flow Visualization
2.4.3 Flow Error Measurements
2.5 Performance Comparison of Optical Flow Algorithms on Synthetic Images
Chapter 3 Analysing Acceleration in Computer Images’ Stream
3.1 Overview
3.2 Estimation of Acceleration Flow
3.2.1 Recovering Acceleration from Optical Flow
3.2.2 Approximating the Derivatives
3.2.3 Analysing Acceleration Algorithm on Image Sequences
3.3 Estimating Acceleration Flow via Other Flow Estimation Methods
3.3.1 A More Practical Approach
3.3.2 Evaluating Acceleration Algorithms on Synthetic Images
3.3.3 Comparison between Differential and Variational Acceleration
3.4 Tangential and Radial Acceleration
3.4.1 Decomposing the Resultant Acceleration
3.4.2 Radial and Tangential Acceleration Fields on Image Sequences
3.5 Conclusion
Chapter 4 Jerk and High-Order Motion in Computer Images’ Streams
4.1 Overview
4.2 Jerk, Snap and High-Order Motion in Kinematics
4.3 Jerk and Snap Field Estimation
4.4 Applying Multi-Order Flow Fields to Synthetic and Real Images
4.5 Conclusion
Chapter 5 Detecting Heel Strikes for Gait Analysis through High-Order Motion Flow
5.1 Overview
5.2 Detecting Heel Strikes through Radial Acceleration
5.2.1 Gait Analysis
5.2.2 Heel Strike Detection for Gait Analysis
5.2.3 The Acceleration Pattern on Gait
5.2.4 Strike Position Estimation and Verification
5.3 Gait Databases
5.3.1 The Large Gait Database
5.3.2 CASIA Gait Database
5.3.3 The OU-ISIR Gait Database
5.4 Experimental Results
5.4.1 Key Frame Detection
5.4.2 Heel Strike Position Verification
5.4.3 Detection Performance
5.4.4 Robustness of Heel Strike Detection Approaches
5.4.5 Detecting Heel Strikes via Snap and Jerk
5.5 Discussion
5.6 Conclusion
Chapter 6 More Potential Applications via High-Order Motion
6.1 Scene Segmentation
6.2 Gait Analysis
References
