Sökning: "Feature descriptor"
Visar resultat 1 - 5 av 15 avhandlingar innehållade orden Feature descriptor.
1. Statistical Segmentation and Registration of Medical Ultrasound Data
Sammanfattning : The interpretation of ultrasonic imagery is typically not straightforward and of quite subjective nature and therefore strongly dependent on the expertise of its users. Thus the development of algorithms which aid in the interpretation of ultrasonic data is a highly relevant topic. LÄS MER
2. Semi-Autonomous Navigation of Powered Wheelchairs : 2D/3D Sensing and Positioning Methods
Sammanfattning : Autonomous driving and assistance systems have become a reality for the automotive industry to improve driving safety in the car. Hence, the cars use a variety of sensors, cameras and image processing techniques to measure their surroundings and control their direction, braking and speed for obstacle avoidance or autonomously driving applications. LÄS MER
3. Improving Image Classification Performance using Joint Feature Selection
Sammanfattning : In this thesis, we focus on the problem of image classification and investigate how its performance can be systematically improved. Improving the performance of different computer vision methods has been the subject of many studies. LÄS MER
4. Channel-Coded Feature Maps for Computer Vision and Machine Learning
Sammanfattning : This thesis is about channel-coded feature maps applied in view-based object recognition, tracking, and machine learning. A channel-coded feature map is a soft histogram of joint spatial pixel positions and image feature values. Typical useful features include local orientation and color. LÄS MER
5. Signal Representation and Processing using Operator Groups
Sammanfattning : This thesis presents a signal representation in terms of operators. The signal is assumed to be an element of a vector space and subject to transformations of operators. The operators form continuous groups, so-called Lie groups. LÄS MER