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 15 of 15 for “"Histogram of Oriented Gradients"”.
-
Aplikace pro demonstraci metody Histogram of Oriented Gradients pro detekci objektů
… práce je shrnutí teorie, ze které vychází metoda Histogram of oriented gradients a následné zpracování vlastního algoritmu pro demonstraci výpočtu a vizualizace vektorů příznakového deskriptoru HOG, natrénování algoritmu SVM a následná detekce objektu. Jako prostředí pro práci bylo zvoleno MS …
-
Assessment of Driver's Attention to Traffic Signs through Analysis of Gaze and Driving Sequences
A driver’s behavior is one of the most significant factors in Advance Driver Assistance Systems. One area that has received little study is just how observant drivers are in seeing and recognizing traffic signs. In this contribution, we present a system considering the location where a driver is …
-
Strawberry Detection Under Various Harvestation Stages
… at various stages in its growth cycle. Histogram of Oriented Gradients (HOG), Local Binary Patterns (LBP) and Convolutional Neural Networks (CNN) were implemented on a limited custom-built dataset. The methodologies were compared in terms of accuracy and computational efficiency. …
-
Image Features for Tuberculosis Classification in Digital Chest Radiographs
… is a respiratory disease which affects millions of people each year, accounting for the tenth leading cause of death worldwide, and is especially prevalent in underdeveloped regions where access to adequate medical care may be limited. Analysis of digital chest radiographs (CXRs) is a common and …
-
Person detection : unmanned system and small sensor applications
… have demonstrated successful detection of multiclass objects with varied scale, position and orientation. This study examines the effectiveness of these methods when applied to detecting humans in two distinct domains: A) Leave-behind sensing and B) Aerial surveillance. Using novel image …
-
Action recognition via sequence embedding
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI-COLUMBIA AT AUTHOR'S REQUEST.] A comb structural exemplar embedding based approach is introduced for action recognition. We propose a new framework to represent an action as a weak classifier pool. During training, firstly, construct a set of static …
-
Improved robustness and efficiency for automatic visual site monitoring
… and occlusions. In this thesis, we present a set of techniques and model enhancements to better handle these problems, focusing on contributions in four areas. First, we improve background subtraction so it can better handle temporally irregular dynamic textures. This allows us to achieve a 5.5% …
-
Multi-signal gesture recognition using body and hand poses
… human-computer interaction. The system consists of three parts: 3D body pose estimation, hand pose classification, and gesture recognition. 3D body pose estimation is performed following a generative model-based approach, using a particle filtering estimation framework. Hand pose classification …
-
Pedestrian detection and tracking for mobility on demand
… is a transportation paradigm in which a fleet of vehicles is shared among a community, with rides provided upon request. The proposed system is capable of robustly gathering pedestrian paths in space using 2D LiDAR and monocular cameras mounted onboard a moving vehicle. These gathered …
-
Automated Vision-Based Tracking and Action Recognition of Earthmoving Construction Operations
The current practice of construction productivity and emission monitoring is performed by either manual stopwatch studies which are significantly labor intensive and subject to human errors, or by the use of RFID and GPS tracking devices which may be costly and impractical. To address these …
-
A soft coprocessor approach to the development of image and video processing applications on FPGAs
… while developing FPGA-based implementations of image and video processing applications. <br/><br/><br/>The starting concept is that of a soft coprocessor (SCP). A set of fundamental soft coprocessors is presented, aimed at implementing some of the key abstractions of Image Algebra. Each soft …
-
From data to decision : boosting for time-constrained detection of objects in moving video
This thesis considers the detection of humans and road signs in video with significant ego-motion. The aim is to work towards an automated vision system for real-time and low-latency detection of target objects from a vehicle moving at normal road speeds. Therefore, a strong emphasis is placed on …
-
From data to decision : boosting for time-constrained detection of objects in moving video
This thesis considers the detection of humans and road signs in video with significant ego-motion. The aim is to work towards an automated vision system for real-time and low-latency detection of target objects from a vehicle moving at normal road speeds. Therefore, a strong emphasis is placed on …
-
Exploration and Comparison of Image-Based Techniques for Strawberry Detection
… in California, and its supply accounts for 80% of the US market [2]. However, in current practice, strawberries are picked manually, which is very labor-intensive and time-consuming. In addition, the farmers need to hire an appropriate number of laborers to harvest the berries based on the …
-
Automated 2D Detection and Localization of Construction Resources in Support of Automated Performance Assessment of Construction Operations
… based algorithms for automated 2D detection of construction workers and equipment from site video streams. The state-of-the-art research proposes semi-automated detection methods for tracking of construction workers and equipment. Considering the number of active equipment and workers on …