نتایج جستجو برای: dynamic time warping dtw

تعداد نتایج: 2193040  

2003
John Kominek Christina L. Bennett Alan W. Black

As part of improved support for building unit selection voices, the Festival speech synthesis system now includes two algorithms for automatic labeling of wavefile data. The two methods are based on dynamic time warping and HMM-based acoustic modeling. Our experiments show that DTW is more accurate 70% of the time, but is also more prone to gross labeling errors. HMM modeling exhibits a systema...

2002
MICHAEL K. BROWN

The technique of dynamic time warping (DTW) is relied on heavily in isolated word recognition systems. The advantage of using DTW is that reliable time alignment between reference and test patterns is obtained. The disadvantage of using DTW is the heavy computational burden required to find the optimal time alignment path. Several alternative procedures have been proposed for reducing the compu...

2007
Mohamed Labidi Maher KHEMAKHEM

Arabic printed cursive characters Recognition using the Dynamic Time Warping (DTW) algorithm provides very interesting results. Unfortunately, the big amount of computing to be achieved by this algorithm during the recognition process makes its execution time very slow. Grid computing presents a very interesting infrastructure that allow to support distributed applications in one hand and to ta...

2011
N. Murali Krishna P. V. Lakshmi Y. Srinivas J. Sirisha Devi

Emotion recognition helps to recognize the internal expressions of the individuals from the speech database. In this paper, Dynamic time warping (DTW) technique is utilized to recognize speaker independent Emotion recognition based on 39 MFCC features. A large audio of around 960 samples of isolated words of five different emotions are collected and recorded at 20 to 300 KHz sampling frequency....

2017
Yingjiang Li Jianhong Sun Rui Li

Computers can recognize human gestures by man-machine interactive systems such as the Xbox Kinect depth camera. Although they can identify easy body movements these systems lack flexible and robust mechanism to perform high-level gesture recognition. This paper proposes a robust method to recognize body actions, it relies on Dynamic Time Warping (DTW), which is a technique used to recognize act...

Journal: :Inf. Syst. 2004
Sang-Wook Kim Sanghyun Park Wesley W. Chu

This paper discusses an effective processing of similarity search that supports time warping in large sequence databases. Time warping enables finding sequences with similar patterns even when they are of different lengths. Previous methods for processing similarity search that supports time warping fail to employ multi-dimensional indexes without false dismissal since the time warping distance...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس 1387

هدف از انجام این پژوهش، طراحی و پیاده‎سازی روشی برای بازشناسی برخط حروف دستنویس فارسی است. برای این منظور از رویکرد تطابق مدل و از یک روش متامورفیسم شکل دوبعدی استفاده شده است. در روش‏های پیشنهادی، حروف مجزای فارسی بر اساس تعداد بخش‏ها‏‏ به چهار گروه تقسیم می‏شوند و فرض می‏شود بدنه اصلی حرف، در بخش اول نوشته می‏شود. بدنه اصلی پس از پیش‏پردازش، به وسیله متامورفیسم با الگوهای پایه مقایسه می‏شود و...

1999
Jorma Laaksonen Matti Aksela Erkki Oja Jari Kangas

Subsystems for on-line recognition of handwriting are needed in personal digital assistants (PDAs) and other portable handheld devices. We have developed a recognition system which enhances its accuracy by applying continuous adaptation to the user’s writing style. The forms of adaptation we have experimented with take place simultaneously with the normal operation of the system and, therefore,...

2017
Omer Gold Micha Sharir

Dynamic Time Warping (DTW) and Geometric Edit Distance (GED) are basic similarity measures between curves or general temporal sequences (e.g., time series) that are represented as sequences of points in some metric space (X, dist). The DTW and GED measures are massively used in various fields of computer science and computational biology, consequently, the tasks of computing these measures are ...

2010
Atanas Ouzounov

In the study, the effectiveness of combinations of cepstral features, channel compensation techniques, and different local distances in the Dynamic Time Warping (DTW) algorithm is experimentally evaluated in the text-dependent speaker identification task. The training and the testing has been done with noisy telephone speech (short phrases in Bulgarian with length of about 2 seconds) selected f...

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