Bangla character recognition system is developed by using automatic feature extraction and XOR operation

This paper presents off-line bangle character recognition system using automatic feature extraction and XOR operation. In this system, the Bangla text is accepted as an image file which is first segmented into lines and words and then each word is segmented into characters. The pixels outside the boundary of the character are eliminated. The characters are scaled to a size equal to the database image. A XOR operation is performed between the scaled image and the database image and the error (%) is calculated. Finally, depending on the minimum error, the system recognizes the character to use in the output. The average recognition accuracy rate of the system was about 80%

Performance Analysis of CDMA System Using Direct Sequence Spread Spectrum and Frequency Hopping Spread Spectrum Techniques

In digital communication system, selection of the most appropriate access method is a challenging task. To meet this challenge we have to be familiar with the technologies and system architectures on the CDMA digital cellular system. The demand for high speed mobile wireless communications is rapidly growing. DS-CDMA plays the best competitive role for achieving the high data capacity and spectral efficiency requirements for communication systems. This paper represents the performance analysis of CDMA using direct sequence and frequency hopping technique in a Fadin

Online Model Updating and Dynamic Learning Rate-Based Robust Object Tracking

Robust visual tracking is a significant and challenging issue in computer vision-related research fields and has attracted an immense amount of attention from researchers. Due to various practical applications, many studies have been done that have introduced numerous algorithms. It is considered to be a challenging problem due to the unpredictability of various real-time situations, such as illumination variations, occlusion, fast motion, deformation, and scale variation, even though we only know the initial target position. To address these matters, we used a kernelized-correlation-filter-based translation filter with the integration of multiple features such as histogram of oriented gradients (HOG) and color attributes. These powerful features are useful to differentiate the target from the surrounding background and are effective for motion blur and illumination variations. To minimize the scale variation problem, we designed a correlation-filter-based scale filter. The proposed adaptive model’s updating and dynamic learning rate strategies based on a peak-to-sidelobe ratio effectively reduce model-drifting problems by avoiding noisy appearance changes. The experiment results show that our method provides the best performance compared to other methods, with a distance precision score of 79.9%, overlap success score of 59.0%, and an average running speed of 74 frames per second on the object tracking benchmark (OTB-2015)

A comparative study on semi rigid taping vs. K-taping on functional performance in ankle instable athletes

Background: A taping is often used to preventgiving-ways in the joint with ankle instability. However, it remains unknown whether the application of a taping modifies abnormal kinematics in ankle instability joints. Ankle Instability is characterized by recurrent giving way and often develops after repeated lateral ankle sprains. Basically, athletes are more prone to ankle instability in order to prevent reoccurrence of injury especially ankle instability. Aim: To evaluate the effectiveness of semi rigid taping vs. k-taping on functional performance in ankle instable athletes. Method: 40 Participants was randomly assigned to two groups. Volunteers with functional ankle instability following ankle inversion sprain were recruited from among students of the Annamalai University. Prior to participation in the study, all participants provided written informed consent. Results: The semi rigid taping group scored a CAIT rating scale means value of 21.07 ±5.37 and Kinesio taping group shows a mean value of 23.02±5.20 with a “t” value of 8.58 and a significant of “p” value 0.00001. This shows that the kinesio taping was highly effective in improving in ankle instability athletes. Conclusion: CAIT analysis clearly showed the stabilizing effect of both kinesio taping and semi rigid taping on the athletes with ankle instability.&nbsp