Advanced Multimedia Content Processing

A software system for the automatic free-text analysis and retrieval of radiological reports is presented. Such software involves: (1) automatic translation of the specific natural language in a formalized metalanguage in order to transform the radiological report in a »normalized report« analyzable by computer; (2) content processing of the normalized report to select desired information. The approach used to accomplish point (1) is described in detail referring to a specific application.

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Cloud-Based Multimedia Content Protection System

International Journal of Scientific Research in Science Engineering and Technology ◽

10.32628/ijsrset207448 ◽

2020 ◽

pp. 164-169

Author(s):

B. Aparna ◽

S. Madhavi ◽

G. Mounika ◽

P. Avinash ◽

S. Chakravarthi

Keyword(s):

Large Scale ◽

Protection System ◽

Multimedia Content ◽

Computationally Efficient ◽

Content Protection ◽

Protection Systems ◽

Multimedia Content Protection ◽

High Scalability ◽

Cloud Infrastructures ◽

Rapid Deployment

We propose a new design for large-scale multimedia content protection systems. Our design leverages cloud infrastructures to provide cost efficiency, rapid deployment, scalability, and elasticity to accommodate varying workloads. The proposed system can be used to protect different multimedia content types, including videos, images, audio clips, songs, and music clips. The system can be deployed on private and/or public clouds. Our system has two novel components: (i) method to create signatures of videos, and (ii) distributed matching engine for multimedia objects. The signature method creates robust and representative signatures of videos that capture the depth signals in these videos and it is computationally efficient to compute and compare as well as it requires small storage. The distributed matching engine achieves high scalability and it is designed to support different multimedia objects. We implemented the proposed system and deployed it on two clouds: Amazon cloud and our private cloud. Our experiments with more than 11,000 videos and 1 million images show the high accuracy and scalability of the proposed system. In addition, we compared our system to the protection system used by YouTube and our results show that the YouTube protection system fails to detect most copies of videos, while our system detects more than 98% of them.

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Information technology. Multimedia content description interface

10.3403/02985353 ◽

2004 ◽

Keyword(s):

Information Technology ◽

Multimedia Content ◽

Content Description

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Age differences in ventromedial prefrontal cortex functional connectivity during socioemotional content processing

Social Behavior and Personality An International Journal ◽

10.2224/sbp.9380 ◽

2020 ◽

Vol 48 (7) ◽

pp. 1-19

Author(s):

Ryan T. Daley ◽

Holly J. Bowen ◽

Eric C. Fields ◽

Angela Gutchess ◽

Elizabeth A. Kensinger

Keyword(s):

Prefrontal Cortex ◽

Functional Connectivity ◽

Inferior Frontal Gyrus ◽

Age Groups ◽

Emotional Content ◽

Ventromedial Prefrontal Cortex ◽

Anterior Cingulate ◽

Supramarginal Gyrus ◽

Age Related ◽

Content Processing

Self-relevance effects are often confounded by the presence of emotional content, rendering it difficult to determine how brain networks functionally connected to the ventromedial prefrontal cortex (vmPFC) are affected by the independent contributions of self-relevance and emotion. This difficulty is complicated by age-related changes in functional connectivity between the vmPFC and other default mode network regions, and regions typically associated with externally oriented networks. We asked groups of younger and older adults to imagine placing emotional and neutral objects in their home or a stranger's home. An age-invariant vmPFC cluster showed increased activation for self-relevant and emotional content processing. Functional connectivity analyses revealed age × self-relevance interactions in vmPFC connectivity with the anterior cingulate cortex. There were also age × emotion interactions in vmPFC functional connectivity with the anterior insula, orbitofrontal gyrus, inferior frontal gyrus, and supramarginal gyrus. Interactions occurred in regions with the greatest differences between the age groups, as revealed by conjunction analyses. Implications of the findings are discussed.

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