matlab projects Archives - Page 30 of 94

Automated Vessel Segmentation Using Infinite Perimeter Active Contour Model with Hybrid Region Information with Application to Retina Images

Posted on February 1, 2016 by Matlab-Projects |

Automated detection of blood vessel structures is becoming of crucial interest for better management of vascular disease. In this paper, we propose a new infinite active contour model that uses…

Segmentation of Foveal Avascular Zone of the Retina Based on Morphological Alternating Sequential Filtering

Posted on February 1, 2016 by Matlab-Projects |

The non-invasive visualization of retinal microvasculature is a traditional way to diagnose and predict some diseases. The region of foveal avascular zone (FAZ) is an important tool to quantify the…

Development of a cortical visual neuroprosthesis for the blind: Replacing the role of the retina

Posted on February 1, 2016 by Matlab-Projects |

Cortical prostheses are a subgroup of visual neuroprosthesis capable of eliciting visual percepts in profoundly blind people through direct stimulation of the occipital cortex. This approach is the only treatment…

Analysis of shape assumptions in 3D reconstruction of retina from multiple fundus images

Posted on February 1, 2016 by Matlab-Projects |

Utilizing priors about the shape of retinal surface is important for accurate reconstruction. We present a detailed analysis of geometrical shape priors in the 3D reconstruction of retina. We first approximate…

A wireless power transmission subsystem with capacitor-less high PSR LDO and thermal protection mechanism for artificial retina application

Posted on February 1, 2016 by Matlab-Projects |

This paper presents a wireless power transmission subsystem with high power supply rejection (PSR) low dropout (LDO) regulator and thermal protection mechanism for artificial retina application. The proposed subsystem performs the functions…

A 0.5 V/1.8 V High Dynamic Range CMOS Imager for Artificial Retina Applications

Posted on February 1, 2016 by Matlab-Projects |

This paper presents a 0.5 V/1.8 V high dynamic range (HDR) sense-and-stimulus (SAS) CMOS imager with adaptive gain control for artificial retina applications. The proposed dual-supply SAS pixel consists of a 0.5…

Major temporal arcade separation in angiography images of retina using the Hough transform and connected components

Posted on February 1, 2016 by Matlab-Projects |

Structural analysis of the vascular architecture of the retina is useful in facilitate the diagnosis of retinopathy disease. Retinopathy can affects the blood flow velocity. Measuring blood flow velocity in major temporal…

Maxwell’s equations based 3D model of light scattering in the retina

Posted on February 1, 2016 by Matlab-Projects |

The goal of this work is to develop a computational model of the human retina and simulate light scattering through its structure aiming to shed light on data obtained by optical coherence…

Real-Time Emulator for Reproducing Graded Potentials in Vertebrate Retina

Posted on February 1, 2016 by Matlab-Projects |

In most parts of the retina, neuronal circuits process visual signals represented by slowly changing membrane potentials, or so-called graded potentials. A feasible approach to speculate about the functional roles of…

A new offline spike detection approach for neural signals recorded from rabbit retina ganglion cell layer

Posted on February 1, 2016 by Matlab-Projects |

Microelectrode arrays which could record approximately in nerve cell size from large nerve cell clusters encourages visual prosthesis design and application studies. Choosing useful information among recorded neural waveforms’ analysis…