Using classification to determine the number of finger strokes on a multi-touch tactile device

نویسندگان

  • Caspar von Wrede
  • Pavel Laskov
چکیده

On certain types of multi-touch touchpads, determining the number of finger stroke is a non-trivial problem. We investigate the application of several classification algorithms to this problem. Our experiments are based on a flat prototype of the spherical Touchglobe touchpad. We demonstrate that with a very short delay after the stroke, the number of touches can be determined by a Support Vector Machine with an RBF kernel with an accuracy of about 90% (on a 5-class problem).

برای دانلود 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

Finger-Count & Radial-Stroke Shortcuts: Two Techniques for Augmenting Linear Menus on Multi-Touch Surfaces

We propose Radial-Stroke and Finger-Count Shortcuts, two techniques aimed at augmenting the menubar on multitouch surfaces. We designed these multi-finger two-handed interaction techniques in an attempt to overcome the limitations of direct pointing on interactive surfaces, while maintaining compatibility with traditional interaction techniques. While Radial-Stroke Shortcuts exploit the wellkno...

متن کامل

Tactile sensitivity on the hands skin in rheumatic patients

INTRODUCTION Clinical symptoms of rheumatic diseases can cause changes in the level of skin tactile sensitivity. AIM To determine the tactile threshold of the hands in female patients with rheumatic diseases. It also attempted to determine correlations between rheumatic patients' tactile sensitivity and the degree of articular movement limitations, the Barthel Index (BI) and Edinburgh Handedn...

متن کامل

Multi-touch Surface Table with Multi-point Tactile Feedback

Currently, most of multi-touch surface tables do not provide any tactile feedback to the users. In this paper, a multi-touch surface table with tactile feedback is proposed. The proposed surface table provides the users with the ability of multi-point tactile feedback with variant patterns and levels of vibrations. A webcam is used to capture all finger-touch images as system inputs using compu...

متن کامل

How Human can Discriminate between Convex and Concave Shape from the Tactile Stimulus

Computational model of how vision system reconstructs the world information from visual stimulus has been studied so far (Marr 1982). Many of the famous achievements done by David Marr have been applied to the computer vision studies in the engineering field. On the other hand, little is known about how people can reconstruct 3D information from 2D stimulus distribution in the sense of touch. I...

متن کامل

بازشناسی برخط حروف مجزای دست‌نویس فارسی بر اساس تشخیص گروه بدنه اصلی با استفاده از ماشین بردار پشتیبان

In this paper a new method for the online recognition of handwritten Persian characters has been proposed which uses a set of simple features and Support Vector Machine (SVM) as a classifier. The task of preprocessing allows us to equalize feature vectors from different characters. This algorithm is implemented in two steps. In the first step, input character is classified into one of eighteen ...

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

برای دانلود 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

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2004