scholarly journals Posture Estimation of a Human Body from Thermal Images of 2D Appearance Models of 3D Ellipsoidal Model

2009 ◽  
Vol 13 (3) ◽  
pp. 172-177 ◽  
Author(s):  
Mitsuhiro Hayase ◽  
◽  
Susumu Shimada ◽  
Keyword(s):  
Human Body ◽  
Three Dimensional ◽  
Two Dimensional ◽  
Recognition Method ◽  
Thermal Images ◽  
New Model ◽  
Model Based ◽  
Ellipsoidal Model ◽  
Posture Estimation ◽  
Appearance Models

We propose a new model-based recognition method that involves the use of three-dimensional (3D) ellipsoidal models in various sizes and proportions as well as their two-dimensional (2D) appearance models. Most model-based vision is intended to recognize specified objects, and the model is specific to the object. However, our method can recognize various proportions of objects and was applied in posture estimation of the human body from thermal images.

Posture Estimation of Human Body Based on Connection Relations of 3D Ellipsoidal Models

2010 ◽  
Vol 14 (6) ◽  
pp. 638-644 ◽  
Author(s):  
Mitsuhiro Hayase ◽  
◽  
Susumu Shimada ◽  
Keyword(s):  
Data Structure ◽  
Human Body ◽  
3D Model ◽  
The Body ◽  
Body Posture ◽  
New Method ◽  
Network Data ◽  
Two Dimensional ◽  
Posture Estimation ◽  
Appearance Models

We propose new method of estimating human body posture from connection relations of threedimensional (3D) ellipsoidal models. First, 3D ellipsoidal models with enlargement and reduction transformations are constructed. Next, two-dimensional (2D) appearance models are constructed from 2D projected images of the 3D model. The appearance models are related to each other by employing a network data structure. They are then matched with an image of the body made from actual thermal images. By using the connection relations between the head and body, the head and the body can be recognized. Differences between individuals can be simply treated by using different sized parts. Moreover, this method can be applied also to recognition of arms and legs.

A new model-based framework for lung tissue segmentation in three-dimensional thoracic CT images

2017 ◽  
Vol 12 (2) ◽  
pp. 339-346 ◽  
Author(s):  
Zeinab Naseri Samaghcheh ◽  
Fatemeh Abdoli ◽  
Hamid Abrishami Moghaddam ◽  
Mohammadreza Modaresi ◽  
Neda Pak
Keyword(s):  
Lung Tissue ◽  
Three Dimensional ◽  
Ct Images ◽  
Tissue Segmentation ◽  
New Model ◽  
Model Based ◽  
Thoracic Ct

Research on Key Technologies for Construction of Three-Dimensional Machining Procedure Model Based Definition

2014 ◽  
Vol 1037 ◽  
pp. 464-467
Author(s):  
Hong Lei Zhang ◽  
Yu Guo ◽  
Zhi Cui ◽  
Yong Zeng ◽  
Tie Jun Yuan
Keyword(s):  
Process Planning ◽  
Process Model ◽  
Three Dimensional ◽  
Design Model ◽  
Two Dimensional ◽  
Model Based ◽  
Key Technologies ◽  
Procedure Model

Three-dimensional machining procedure models are used for generating three-dimensional process model and process planning that support machining. It can be realized through extracting information of three-dimensional design model. The consistency of data and visualization of machining can be improved using the technologies for parts, which are compared with the current two-dimensional technology. The key technologies and framework for construction of three-dimensional machining procedure model based definition are researched.

Exploration of Non-Revolved Parts Modeling Based on MBD and Pro/ENGINEER

2013 ◽  
Vol 712-715 ◽  
pp. 1171-1174 ◽  
Author(s):  
Li Xin Wang ◽  
Yu Guo ◽  
Ming Yue Guo
Keyword(s):  
Three Dimensional ◽  
Great Change ◽  
Two Dimensional ◽  
Modeling Methods ◽  
Model Based ◽  
Boeing Company ◽  
The World ◽  
Definition Of ◽  
Key Steps ◽  
Product Definition

A great change in mechanical industry has occurred after several successful practices using MBD (Model Based Definition) of The Boeing Company. It is an inevitable trend from two-dimensional product definition to three-dimensional product definition in mechanical industry. Several standards for MBD have emerged around the world. This paper explores the non-revolved parts modeling methods based on MBD and Pro/ENGINEER, presents several key steps about full-annotated model per MBD and then makes a conclusion. Following these methods we successfully build a typical non-revolved model which conforms to MBD standards correctly and efficiently.

The Sahara

2017 ◽  
Author(s):  
Barbara E. Barich
Keyword(s):  
Human Body ◽  
Manufacturing Process ◽  
Three Dimensional ◽  
Two Dimensional ◽  
Dimensional Representation ◽  
Three Dimensional Representation ◽  
The Difference ◽  
Symbolic Content ◽  
The Relationship

This chapter discusses the collection of objects, in clay and stone, from various pastoral Saharan sites whose original core area lay between Libya (Tadrart Acacus) and Algeria (Tassili- n-Ajjer). The chapter starts from the general theme of the relationship between the figurines and the subjects they represent, and the difference between two-dimensional and three-dimensional representation. It goes on to discuss the manufacturing process of the clay specimens (dating from between 7000 and 4000 years ago) and the significance of the changes introduced by the Neolithic. Most of the items studied fall into the category of zoomorphic figurines, with only two anthropomorphic examples, and find in the depiction of cattle their most striking subject. These representations possess an evident symbolic content which must be framed within the pastoral ideology of the Saharan Neolithic. In the anthropomorphic figurines the representation of the human body also plays the role of recapturing the sense of wholeness.

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