Applied Numerical Analysis. By C.F. Gerald. Pp. xii, 340. £3·60. 1970. (Addison-Wesley.)

1. Introduction and Historical Background 1.1 Why make human figure models? 1.2 Historical roots 1.3 What is currently possible? 1.4 Manipulation, animation, and simulation 1.5 What did we leave out? 2. Mody Modeling 2.1 Geometric body modeling 2.2 Representing articulated figures 2.3 A flexible torso model 2.4 Shoulder complex 2.5 Clothing models 2.6 The anthropometry database 2.7 The anthropometry spreadsheet 2.8 Strength and torque display 3. Spatial Interaction 3.1 Direct manipulation 3.2 Manipulation with constraints 3.3 Inverse kinematic positioning 4. Behavioral Control of Articulated Figures 4.1 An interactive system for postural control 4.2 Interactive manipulation with behaviors 4.3 The animation interface 4.4 Human figure motions 4.5 Virtual human control 5. Simulation with Societies of Behaviors 5.1 Forward simulation with behaviors 5.2 Locomotion 5.3 Strength guided motion 5.4 Collision-free path and motion planning 5.5 Posture planning 6. Task-level Specifications 6.1 Performance simulation with simple commands 6.2 Natural language expressions of kinematics and space 6.3 Task-level simulation 6.4 A framework for instruction understanding 7. Epilogue 7.1 A road map toward the future 7.2 Conclusion

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Simulating humans: computer graphics animation and control

3D printing has been hailed as a disruptive technology which will change manufacturing. Used in aerospace, defence, art and design, 3D printing is becoming a subject of great interest in surgery. The technology has a particular resonance with dentistry, and with advances in 3D imaging and modelling technologies such as cone beam computed tomography and intraoral scanning, and with the relatively long history of the use of CAD CAM technologies in dentistry, it will become of increasing importance. Uses of 3D printing include the production of drill guides for dental implants, the production of physical models for prosthodontics, orthodontics and surgery, the manufacture of dental, craniomaxillofacial and orthopaedic implants, and the fabrication of copings and frameworks for implant and dental restorations. This paper reviews the types of 3D printing technologies available and their various applications in dentistry and in maxillofacial surgery.

3D printing in dentistry.

In this paper, we have proposed a number of measures for the quantification of dexterity of manipulators. The use of such measures is especially important for kinematically redundant manipulators since they can satisfy secondary cri teria in addition to satisfying a specification of end-effector motion. We will compare several measures for the problems offinding an optimal configuration for a given end-effector position, finding an optimal workpoint, and designing the op timal link lengths of an arm.

Dexterity measures for the design and control of kinematically redundant manipulators

This review article surveys extensively the current progresses made toward video-based human activity recognition Three aspects for human activity recognition are addressed including core technology, human activity recognition systems, and applications from low-level to high-level representation In the core technology, three critical processing stages are thoroughly discussed mainly: human object segmentation, feature extraction and representation, activity detection and classification algorithms In the human activity recognition systems, three main types are mentioned, including single person activity recognition, multiple people interaction and crowd behavior, and abnormal activity recognition Finally the domains of applications are discussed in detail, specifically, on surveillance environments, entertainment environments and healthcare systems Our survey, which aims to provide a comprehensive state-of-the-art review of the field, also addresses several challenges associated with these systems and applications Moreover, in this survey, various applications are discussed in great detail, specifically, a survey on the applications in healthcare monitoring systems

https://www.mdpi.com/2073-431X/2/2/88/pdf

A Review on Video-Based Human Activity Recognition

Broadly speaking, the regional structure of a manipulator, which consists of the three inboard joints and their associated members, determines the workspace shape and volume.The orientation structu...

Geometric optimization of serial chain manipulator structures for working volume

Kinematic sensitivity analysis of linkage with joint clearance based on transmission quality

Accuracy analysis of a multi-loop linkage with joint clearances

In this paper, an efficient polishing process is proposed for precision polishing tasks using a new compliant abrasive tool. The polishing process is conducted by a force-controllable five-axes robot. The polishing process comprises many steps using different abrasive grain sizes. For each process step, an optimal set of polishing parameters that can efficiently reduce surface roughness is determined by the Taguchi method. The relation between the surface roughness and the polishing efficiency for each set of optimal parameters can be fitted as an R–E curve. The efficiency of a polishing step decreases with the number of polishing cycles and the surface roughness reduces to an asymptote value. The automatic polishing scheduling is fulfilled by switching to a more efficient choice among these R–E curves until the desired surface roughness is reached.

Ming-June Tsai

Papers

Geometric optimization of serial chain manipulator structures for working volume

Kinematic sensitivity analysis of linkage with joint clearance based on transmission quality

Accuracy analysis of a multi-loop linkage with joint clearances

Efficient automatic polishing process with a new compliant abrasive tool

Development of a high-precision surface metrology system using structured light projection