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 7 of 7 for “"hierarchical segmentation"”.
-
Hierarchical Segmentation and Clustering Using Similarity Analysis
… structure is in a form of image regions (a segmentation problem) or pattern clusters (a clustering problem). Thus a typical low-level classification problem breaks down to segmentation and clustering problems. Features from one structure are similar to each other and dissimilar to all …
-
A design and implementation of an efficient, parallel watershed algorithm for affinity graphs
… parallel, generalized watershed algorithm for hierarchical segmentation of affinity graphs. By introducing four variable parameters the algorithm enables us to use previous knowledge about the input graph in order to achieve better results. The algorithm is very suitable for hierarchical …
-
Segmentation of cervical and lumbar vertebrae in x-ray images using active appearance models and extensions
This thesis presents a hierarchical segmentation algorithm tailored to the segmentation of cervical and lumbar vertebrae in digitized X-ray images. The algorithm employs the Generalized Hough Transform (GHT) to obtain a suitable initialization for two segmentation stages that utilize Active …
-
Análisis observacional del Kumite en la iniciación al Karate
… combats in the initiation to Karate, through a hierarchical segmentation analysis based on the decision tree technique. The second objective is to deepen in the technical-tactical performance in combats in the initiation to Karate Kumite, integrating the information related to the executed …
-
Segmentation and Fracture Detection in X-ray images for Traumatic Pelvic Injury
… The proposed system therefore incorporates a hierarchical segmentation algorithm which is able to automatically extract multiple structures in a single pass, using a combination of anatomical knowledge and computational techniques such as directed Hough Transform. This algorithm also applies a …
-
Segmentation and Fracture Detection in CT Images for Traumatic Pelvic Injuries
… planning in a short period of time. Pelvic bone segmentation is a vital step in analyzing pelvic CT images and assisting physicians with diagnostic decisions in traumatic pelvic injuries. In this study, a new hierarchical segmentation algorithm is proposed to automatically extract multiplelevel …
-
An Object-Oriented Approach to Forest Volume and Aboveground Biomass Modeling using Small-Footprint Lidar Data for Segmentation, Estimation, and Classification
… and mixed forest stands. The eCognition segmentation algorithm was used to derive objects from a lidar-based canopy height model (CHM). New segment selection criteria, based on between- and within-segment CHM variance, and average field plot size, were developed. Horizontal point samples …