In this paper, we propose a new approach for generating interactive behaviours for virtual characters, namely the windowed Viterbi algorithm, capable of doing so in real-time. Consequently, we compare the performance of the standard Viterbi algorithm and the windowed Viterbi algorithm within our system. Our system tracks and analyses the behaviour of a real person in video input and produces a ...

With Internet entering all walks of life, development internet and usage expansion demand better performance, especially the application 5G network that adopts NAS networking mode. Some bandwidth cannot fully support current demand, which causes fluctuations other concerns. In this paper, a method for optimizing topological structure bottom layer communication is proposed has outage performance...

Due to the development of wireless internet and an increasing number of internet users, transferring and receiving errorless data in real-time can be the most important method to guarantee the QoS (Quality of Service) of internet. Convolutional encoding and Viterbi decoding are the widely used techniques to enhance the performance of BER (bit error rate) in the application area such as satellit...

This paper proposes a new real-time stereo matching algorithm paired with an online auto-rectification framework. The algorithm treats disparities of stereo images as hidden states and conducts Viterbi process at 4 bi-directional paths to estimate them. Structural similarity, total variation constraint, and a specific hierarchical merging strategy are combined with the Viterbi process to improv...

A weighted Viterbi algorithm (HMM) is proposed and applied in combination with spectral subtraction and Cepstral Mean Normalization to cancel both additive and convolutional noises in speech recognition. The weighted Viterbi approach is compared and used in combination with state duration modelling. The results presented in this paper show that a proper weight on the information provided by sta...

Abstract: Convolutional code is a coding scheme used in communication systems including deep space communications and wireless communications. It provides an alternative approach to block codes for transmission over a noisy channel. The block codes can be applied only for the block of data. The Convolutional coding has an advantage over the block codes in that it can be applied to a continuous ...

-Viterbi decoder is a basic and important block in any Code Division Multiple Access (CDMA) and CDMA uses Convolutional encoder to prevent Interference. Convolutional encoding and Viterbi decoding are widely used in various communication systems because of their excellent error control performance. This paper deals with the implementation of Convolutional encoding and Viterbi decoding using SOP...

This report reviews previous work on Viterbi algorithm and decoder design. Our work is based on a (2, 1, 4) architecture with hard decision. Different hardware architectures are applied to Add-Compare-Select unit (ACS) and the entire system, and the performances on energy, area, and speed are compared. Keywords-convolutional code; maximum likelihood decoding; Viterbi algorithm