Andere Kunden interessierten sich auch für
![Classification of Battlespace Detonations from Temporally Resolved Multi-Band Imagery and Mid-Infrared Spectra]( "Classification of Battlespace Detonations from Temporally Resolved Multi-Band Imagery and Mid-Infrared Spectra")
Classification of Battlespace Detonations from Temporally Resolved Multi-Band Imagery and Mid-Infrared Spectra63,99 €![Culture and Coercion: Embedding Political and Cultural Expertise at the Operational Level If War]( "Culture and Coercion: Embedding Political and Cultural Expertise at the Operational Level If War")
Culture and Coercion: Embedding Political and Cultural Expertise at the Operational Level If War60,99 €![Classification of Schedule Management Barriers through Concept Mapping]( "Classification of Schedule Management Barriers through Concept Mapping")
Classification of Schedule Management Barriers through Concept Mapping64,99 €![Classification of Radar Targets Using Invariant Features]( "Classification of Radar Targets Using Invariant Features")
Classification of Radar Targets Using Invariant Features62,99 €![Classification Characteristics of Carbon Nanotube Polymer Composite Chemical Vapor Detectors]( "Classification Characteristics of Carbon Nanotube Polymer Composite Chemical Vapor Detectors")
Classification Characteristics of Carbon Nanotube Polymer Composite Chemical Vapor Detectors60,99 €![Beauty: Illustrated Chiefly by an Analysis and Classification of Beauty in Woman]( "Beauty: Illustrated Chiefly by an Analysis and Classification of Beauty in Woman")
Beauty: Illustrated Chiefly by an Analysis and Classification of Beauty in Woman29,99 €![21st Century Roles and Missions: Identifying Air Force Core Competencies and Core Capabilities]( "21st Century Roles and Missions: Identifying Air Force Core Competencies and Core Capabilities")
21st Century Roles and Missions: Identifying Air Force Core Competencies and Core Capabilities60,99 €
Over 725 steganography tools are available over the Internet, each providing a method for covert transmission of secret messages. This research presents four steganalysis advancements that result in an algorithm that identifies the steganalysis tool used to embed a secret message in a JPEG image file. The algorithm includes feature generation, feature preprocessing, multi-class classification and classifier fusion. The first contribution is a new feature generation method which is based on the decomposition of discrete cosine transform (DCT) coefficients used in the JPEG image encoder. The generated features are better suited to identifying discrepancies in each area of the decomposed DCT coefficients. Second, the classification accuracy is further improved with the development of a feature ranking technique in the preprocessing stage for the kernel Fisher's discriminant (KFD) and support vector machines (SVM) classifiers in the kernel space during the training process. Third, for the KFD and SVM two-class classifiers a classification tree is designed from the kernel space to provide a multi-class classification solution for both methods. Fourth, by analyzing a set of classifiers, signature detectors, and multi-class classification methods a classifier fusion system is developed to increase the detection accuracy of identifying the embedding method used in generating the steganography images.
Hinweis: Dieser Artikel kann nur an eine deutsche Lieferadresse ausgeliefert werden.
Hinweis: Dieser Artikel kann nur an eine deutsche Lieferadresse ausgeliefert werden.