Vetenskaplig uppsats för avläggande av teknologie licentiatexamen i tillämpad
Fatigue could be detected or predicted by the dynamic facial expression event: yawn. Facial expression parameters are extracted from real time video containing faces and used as observations for the...
This paper consider the problem of video content adaptation for the teleconference application in a heterogeneous network communication system. Due to the diversity of content providers and content...
DIGITAL MEDIA LAB Sample Based Texture extraction for Model based coding (2008)
This paper addresses an important issue in Model-based coding, namely, how to extract the facial texture. The traditional method is to utilize a cyber scanner to get the user’s facial texture...
for Streaming Time Series via Pre-fetching (2007)
X. Sean Wang, Like Gao, Like Gao, Like Gao, Zhengrong Yao, Zhengrong Yao, ...
{lgao, zyao, xywang}gmu.edu For many applications, it is important to quickly locate the nearest neighbor of a given time series. When the given time series is a streaming one, nearest neighbors may...
Using Triangle Inequality to Efficiently Process (2007)
Continuous Queries On, Zhengrong Yao, Like Gao, X. Sean Wang
In many applications, it is important to quickly find, from a database of patterns, the nearest neighbors of highdimensional query points that come into the system in a streaming form. Treating each...
Model Based Coding : Initialization, Parameter Extraction and Evaluation (2005)
This thesis covers topics relevant to model-based coding. Model-based coding is a promising very low bit rate video coding technique. The idea behind this technique is to parameterize a talking head...
Model Based Coding : Initialization, Parameter Extraction and Evaluation (2005)
This thesis covers topics relevant to model-based coding. Model-based coding is a promising very low bit rate video coding technique. The idea behind this technique is to parameterize a talking head...
Model-based Coding Initialization, Parameters Extraction and Evaluation av (2005)
Zhengrong Yao, Akademisk Avhandling, Zhengrong Yao
som med vederbörligt tillst˚and av rektorsämbetet vid Ume˚a universitet för avläggande av filosofie doktorsexamen framläggs till offentligt försvar i N420, Naturvetarhuset, M˚andag den 28...
A video based real time fatigue detection system (2004)
Fatigue could be detected or predicted by the dynamic facial expression event: yawn. Facial expression parameters are extracted from real time video containing faces and used as observations for the...
Model based video coding using open-loop architecture (2004)
This paper addresses an important issue in Model-based coding, namely, how to extract the motion information of a head object from a video sequence. Traditional methods use a closed-loop coding...
Sample Based Texture extraction for Model based coding (2004)
This paper addresses an important issue in Model-based coding, namely, how to extract the facial texture. The traditional method is to utilize a cyber scanner to get the user’s facial texture...
A video based real time fatigue detection system (2004)
Fatigue could be detected or predicted by the dynamic facial expression event: yawn. Facial expression parameters are extracted from real time video containing faces and used as observations for the...
Model based video coding using open-loop architecture (2004)
This paper addresses an important issue in Model-based coding, namely, how to extract the motion information of a head object from a video sequence. Traditional methods use a closed-loop coding...
Sample Based Texture extraction for Model based coding (2004)
This paper addresses an important issue in Model-based coding, namely, how to extract the facial texture. The traditional method is to utilize a cyber scanner to get the user’s facial texture...
A Networked Yawn Detector (2003)
The driver’s mental state could be estimated from visual clues. The typical driver’s fatigue event could be detected or predicted by the dynamic facial expression events such like yawn. This...
Initialization of Model Based Coding for Customizing Networked Conference Video (2003)
This paper considers the problem of video content adaptation for a mobile user in a networked conference application. Due to big variation of network bandwidth, it is challenging to keep the...
This paper consider the problem of video content adaptation for the teleconference application in a heterogeneous network communication system. Due to the diversity of content providers and content...
Is A Magnetic Sensor Capable of Evaluating A Vision-Based Face Tracking System? (2003)
This paper addresses an important issue, how to evaluate a vision-based face tracking system? Although nowadays it is getting popular to employ a magnetic sensor to evaluate the performance of such...
Semi-Automatic Initialization for Model Based Coding: A Facial Feature Point Based Approach (2003)
In this paper we address the initialization problem for model-based coding system. A semi-automatic scheme based on using feature points is proposed. It has three features: 1) uses personal feature...
Semi-Automatic Initialization for Model Based Coding: A Facial Feature Point Based Approach (2003)
In this paper we address the initialization problem for model-based coding system. A semi-automatic scheme based on using feature points is proposed. It has three features: 1) uses personal feature...
Is A Magnetic Sensor Capable of Evaluating A Vision-Based Face Tracking System? (2003)
This paper addresses an important issue, how to evaluate a vision-based face tracking system? Although nowadays it is getting popular to employ a magnetic sensor to evaluate the performance of such...
Initialization of Model Based Coding for Customizing Networked Conference Video (2003)
This paper considers the problem of video content adaptation for a mobile user in a networked conference application. Due to big variation of network bandwidth, it is challenging to keep the...
This paper consider the problem of video content adaptation for the teleconference application in a heterogeneous network communication system. Due to the diversity of content providers and content...
A Networked Yawn Detector (2003)
The driver’s mental state could be estimated from visual clues. The typical driver’s fatigue event could be detected or predicted by the dynamic facial expression events such like yawn. This...