Comparing Shape and Temporal PDMs

نویسندگان

  • Ezra Tassone
  • Geoff A. W. West
  • Svetha Venkatesh
چکیده

The Point Distribution Model (PDM) has been successfully used in representing sets of static and moving images. A recent extension to the PDM for moving objects, the temporal PDM, has been proposed. This utilises quantities such as velocity and acceleration to more explicitly consider the characteristics of the movement and the sequencing of the changes in shape that occur. This research aims to compare the two types of model based on a series of arm movements, and to examine the characteristics of both approaches.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Classifying Variable Objects Using a Flexible Shape Model

Point Distribution Models (PDMs) are statistical mo dels which represent objects whose shape can vary. A useful feature of PDMs is their ability to capture the shape of variable objects within a training set with a small number of shape parameters. This compact and accurate parametrization can be used for the design of efficient classification systems. In this paper we de scribe a classificatio...

متن کامل

A Non-linear Generalisation of PDMs using Polynomial Regression

We have previously described how to model shape variability by means of point distribution models (TDMs,) in which there is a linear relationship between a set of shape parameters and the positions of points on the shape. This linear formulation can fail for shapes which articulate or bend.' we show examples of such failure for both real and synthetic classes of shape. A new, more general formu...

متن کامل

A method for reducing pressure-induced deformation in silicone microfluidics.

Poly(dimethylsiloxane) or PDMS is an excellent material for replica molding, widely used in microfluidics research. Its low elastic modulus, or high deformability, assists its release from challenging molds, such as those with high feature density, high aspect ratios, and even negative sidewalls. However, owing to the same properties, PDMS-based microfluidic devices stretch and change shape whe...

متن کامل

Human Motion Segmentation using Active Shape Models

Human motion analysis in images is thoroughly related with the development of computational techniques capable of automatically identify, track and analyze relevant structures of the body. In fact, in any system designed for human motion analysis from image sequences, the first processing step concerns the identification of the structures to be analyzed in each of the sequence images, being thi...

متن کامل

Non-Linear Point Distribution Modelling using a Multi-Layer Perceptron

Objects of the same class sometimes exhibit variation in shape. This shape variation has previously been modelled by means of point distribution models (PDMs) in which there is a linear relationship between a set of shape parameters and the positions of points on the shape. A polynomial regression generalization of PDMs, which succeeds in capturing certain forms of non-linear shape variability,...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2002