Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 368 for “"encoder"”.
-
A two channel spatio-temporal encoder
Thesis (B.S.)-Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1988.
-
Attention-Based Encoder-Decoder Models for Speech Processing
… models. More recently, the Attention-Based Encoder-Decoder (AED) model has become a general and effective neural network that transforms a source sequence into a target sequence. These two sequences may have different lengths and belong to different modalities. AED models offer a new …
-
Encoder-Agnostic Learned Temporal Matching for Video Classification
In recent years, large transformer-based video encoder models have greatly advanced stateof-the-art performance on video classification tasks. However, these large models typically process videos by averaging embedding outputs from multiple clips over time to produce fixed-length representations. …
-
Simulation of VSELP speech encoder for mobile channels
This thesis presents a simulation and performance evaluation of the Vector Sum Excited Linear Prediction Coder (VSELP). Recently there has been an incredible demand for personal communication services. To meet this demand various technologies have been developed. The U. S. digital cellular standard …
-
A Unified Multiscale Encoder-Decoder Transformer for Video Segmentation
… an end-to-end trainable and unified multiscale encoder-decoder transformer for dense video estimation, with a focus on segmentation. We investigate this direction by exploring unified multiscale processing throughout the processing pipeline of feature encoding, context encoding and object …
-
Heterogeneous multiprocessor pipeline design for H.264 video encoder
… platform for a H.264/Advanced Video Coding (AVC) encoder which is both flexible (allows software upgrades) and scalable (supports multiple resolutions), and supports high video quality (by using both intra prediction and inter prediction) and allows high throughput (by exploiting slice-level/Group …
-
A Bi-Encoder LSTM Model for Learning Unstructured Dialogs
… Recurrent Neural Network (RNN) and a Dual Encoder (DE) based on Long Short Term Memory (LSTM) model suitable to learn from the Ubuntu Dialog Corpus Version 1 (UDCv1). We use this same architecture but on UDCv2 as a benchmark and introduce a new LSTM based architecture called the Bi-Encoder …
-
Implementation of a High-speed Sinusoidal Encoder Interpolation System
… In many brushless motor applications, sinusoidal encoders have significant advantages over square-wave encoders. Signal processing techniques for sinusoidal encoder feedback signals are considered in the context of a brushless motor positioning system. In particular, a method is presented for …
-
Digital speed and position control system incorporating an Incremental encoder
… real time control system, where optical encoder is coupled to the motor shaft to provide the feedback speed signal to controller. Pulse Width Modulation (PWM) technique is used where its signal is generated in microcontroller. The microcontroller will send PWM signal to motor driver, vary …
-
A two axis mirror positioning system with quadrature encoder output
… sensors were considered, and a quadrature encoder was chosen. To reduce cost, the encoder disk was made from an overhead transparency with a slotted image printed on it. The required encoder accuracy was 1.0 degree, and a measured accuracy of 0.85 degrees was achieved. The encoder was …
-
Implementing rate-distortion optimization on a resource-limited H.264 encoder
… characteristics of an H.264 video compression encoder to improve its mode decision performance. First, it provides a background to the fundamentals of video compression. Then it describes the problem of estimating rate and distortion of a macroblock given limited computational resources. It …
-
Parallel architectures for entropy coding in a dual-standard ultra-HD video encoder
… will be integrated into a dual-standard video encoder chip targeted for operation at 0.6V, which will be fabricated following the completion of this thesis. Parallelism, as well as other techniques applied at the syntax element or bit level, are used to achieve the overall throughput …
-
Robust Speech Filter And Voice Encoder Parameter Estimation using the Phase-Phase Correlator
In recent years, linear prediction voice encoders have become very efficient in terms of computing execution time and channel bandwidth usage while providing, in the absence of im- pulsive noise, natural sounding synthetic speech signals. This good performance has been achieved via the use of a …
-
Fast Split Arithmetic Encoder Architectures and Perceptual Coding Methods for Enhanced JPEG2000 Performance
… applications require a fast, low power JPEG2000 encoder to be embedded on the mobile agent. This embedded encoder needs to also provide superior subjective quality to low bitrate images. This research addresses these two aspects of enhancing the performance of JPEG2000 encoders. The JPEG2000 …
-
Design and implementation of a magnetic rotary wheel encoder for a self-driving robotic vehicle
… complete the fabrication of a magnetic wheel encoder for a fleet of autonomous electric vehicles that will provide shuttle service across MIT's campus. Currently no self-driving vehicles exist for such a function, especially for mobility on a college campus. In an effort to assist the system's …
-
A Temporal Encoder-Decoder Approach to Extracting Blood Volume Pulse Signal Morphology from Face Videos
… a new approach that is inspired by temporal encoder-decoder architectures that have been used for audio signal separation. As input, this system accepts a temporal sequence of RGB (red, green, blue) values that have been spatially averaged over a small portion of the face. The output of the …
-
Performance analysis of H.264 encoder for high-definition video transmission over ultra-wideband communication link.
… and quantization parameter of an H.264/AVC encoder. Here, standard HD video streams with different motion characteristics are used, and the impact of these parameters change on the reconstructed video quality and the broadcasting data rate are analyzed. Finally, a generalized parameters …
-
Using Machine Learning Techniques to Model Encoder/Decoder Pair for Non-invasive Electroencephalographic Wireless Signal Transmission
… solution involves developing an optimized Encoder/Decoder (E/D) pair using machine learning techniques, particularly those borrowed from Generative Adversarial Networks (GAN) and other Deep Neural Networks, to minimize data transmission and ensure robustness against data degradation. The …
-
Adapting Transformer Encoder Architecture for Continuous Weather Datasets with Applications in Agriculture, Epidemiology and Climate Science
This work introduces WeatherFormer, a transformer encoder-based model designed to robustly represent weather data from minimal observations. It addresses the challenge of modeling complex weather dynamics from small datasets, which is a bottleneck for many prediction tasks in agriculture, …
Page 1 of 19