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Counting Turkish Coins with a Calibrated Camera
(Springer International Publishing Ag, 2015)
We present a computer vision application that detects all coins in a test image, classifies each detected coin and computes the total amount. Coins to be counted are assumed to be lying on a flat surface. The application ...
Sequential Forward Feature Selection for Facial Expression Recognition
(IEEE, 2016)
Facial expression recognition is an important computer vision problem with various applications. In this study, we investigate the effectiveness of features derived from facial landmarks in facial expression recognition. ...
Greedy Search for Descriptive Spatial Face Features
(IEEE, 2017)
Facial expression recognition methods use a combination of geometric and appearance-based features. Spatial features are derived from displacements of facial landmarks, and carry geometric information. These features are ...
Pdf sharpening for multichannel predictive coders
(2006)
Predictive coders that split the prediction decision into con-texts depending on the local image behaviour have proved to be practically useful and successful in image coding applications. Such predictive coders can be ...
A novel lossless image compression approach: "Cooperative prediction"
(2007)
Conditional predictive image coders (such as LOCO, CALIC, etc.) split the prediction rule into logical cases (channels) and produce prediction residuals for each case. It is a known fact that the distributions of these ...
Lens Distortion Rectification Using Triangulation Based Interpolation
(Springer Int Publishing Ag, 2015)
Nonlinear lens distortion rectification is a common first step in image processing applications where the assumption of a linear camera model is essential. For rectifying the lens distortion, forward distortion model needs ...
Video-based Lane Detection Using a Fast Vanishing Point Estimation Method
(IEEE, 2012)
Lane detection algorithms constitute a basis for intelligent vehicle systems such as lane tracking and involuntary lane departure detection. In this paper, we propose a simple and video-based lane detection algorithm that ...
Combining Feature-based and Model-based Approaches For Robust Ellipse Detection
(IEEE, 2016)
Fast and robust ellipse detection is a vital step in many image processing and computer vision applications. Two main approaches exist for ellipse detection, i.e., model-based and feature-based. Model-based methods require ...
Blind Rectification of Radial Distortion by Line Straightness
(IEEE, 2016)
Lens distortion self-calibration estimates the distortion model using arbitrary images captured by a camera. The estimated model is then used to rectify images taken with the same camera. These methods generally use the ...
A Wearable Head-Mounted Sensor-Based Apparatus for Eye Tracking Applications
(IEEE, 2008)
This work presents a novel approach to eye-tracking systems using eye-glass like apparatus equipped with relatively cheap IrDA sensors and IrDA LEDs connected to a computer. The proposed system produces very low dimensional ...