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Topic Review
World-Wide Federated Content-Based Medical Image Retrieval
Content-based medical image retrieval (CBMIR) is a recent DL-based methodology that allows pathologists a quick and precise search in previously diagnosed and treated cases. In CBMIR, image features, such as texture, shape, color, and intensity, are extracted from the query and data set; then, a similarity measure is applied to compare the query features with the features of the database.
  • 321
  • 17 Oct 2023
Topic Review
Construction Method of Knowledge Graph for Image Recognition
With the continuous development of artificial intelligence technology and the exponential growth in the number of images, image detection and recognition technology is becoming more widely used. Image knowledge management is extremely urgent. The data source of a knowledge graph is not only the text and structured data but also the visual or auditory data such as images, video, and audio.
  • 226
  • 16 Oct 2023
Topic Review
Accessible Higher-Education: A Framework for Continuous Improvement
The SARS-CoV-2 Coronavirus pandemic (COVID-19) forced educational institutions to move their programs to the virtual world, revealing needs such as the lack of accessibility of online resources and content. In this context, the Erasmus+ project "Technological Assistance to Accessibility in Virtual Higher Education (EduTech)”, proposed tools and knowledge focused on improving accessibility in Higher Education Institutions (HEIs). In this article, a framework that integrates all the findings of the EduTech project is presented. The proposed framework is aimed at facilitating the adoption of good practices related to technological accessibility in HEI. The framework considers the limitations and needs of the institutions in terms of governance and resources for improving accessibility. The framework was adopted by four Latin American HEIs to establish a continuous improvement strategy according to their needs and current level of accessibility focus. This research also shows the results and suggests that the proposal is adaptable to the needs of HEIs, allowing its implementation regardless of their organizational structure and their current level of attention to accessibility.
  • 569
  • 16 Oct 2023
Topic Review
Flatfeet Severity-Level Detection
Flat foot is a postural deformity in which the plantar part of the foot is either completely or partially contacted with the ground. In the clinical practices, X-ray radiographs have been introduced to detect flat feet because they are more affordable to many clinics than using specialized devices. 
  • 356
  • 16 Oct 2023
Topic Review
Algorithms for Spam Detection
Spam emails have become a pervasive issue, as internet users receive increasing amounts of unwanted or fake emails. To combat this issue, automatic spam detection methods have been proposed, which aim to classify emails into spam and non-spam categories. Machine learning techniques have been utilized for this task with considerable success. 
  • 410
  • 16 Oct 2023
Topic Review
2D DWT and PCA with Canonical Huffman Encoding
For image compression, discrete wavelet transform (DWT) and CHC with principal component analysis (PCA) were combined. The lossy method was introduced by using PCA, followed by DWT and CHC to enhance compression efficiency. By using DWT and CHC instead of PCA alone, the reconstructed images have a better peak signal-to-noise ratio (PSNR).
  • 321
  • 16 Oct 2023
Topic Review
Video Summarization
During the last few years, several technological advances have led to an increase in the creation and consumption of audiovisual multimedia content. Users are overexposed to videos via several social media or video sharing websites and mobile phone applications. For efficient browsing, searching, and navigation across several multimedia collections and repositories, e.g., for finding videos that are relevant to a particular topic or interest, this ever-increasing content should be efficiently described by informative yet concise content representations. A common solution to this problem is the construction of a brief summary of a video, which could be presented to the user, instead of the full video, so that she/he could then decide whether to watch or ignore the whole video. Such summaries are ideally more expressive than other alternatives, such as brief textual descriptions or keywords. 
  • 405
  • 16 Oct 2023
Topic Review
Deep Learning Approaches for Distance Estimation
Visual impairment (VI) is a significant public health concern that affects people of all ages and is caused by a range of factors, including age-related eye diseases, genetic disorders, injuries, and infections. Therefore, governments of different countries are attempting to design various assistive living facilities for individuals with visual impairments. Machine learning techniques have greatly improved object recognition accuracy in computer vision [8]. This has led to the development of sophisticated models that can recognize objects in complex environments. 
  • 330
  • 16 Oct 2023
Topic Review
Three-Dimensional Flight Corridor for Unmanned Aerial Vehicle
The 3D flight corridor is established as a topological structure based on a hand-crafted path either derived from a computer-generated environment or provided by the human operator, which captures humans’ preferences and desired flight intentions for the given space. This corridor is formulated as a series of interconnected overlapping convex polyhedra bounded by the perceived environmental geometries, which facilitates the generation of suitable 3D flight paths/trajectories that avoid local minima within the corridor boundaries. An occupancy check algorithm is employed to reduce the search space needed to identify 3D obstacle-free spaces in which their constructed polyhedron geometries are replaced with alternate convex polyhedra. 
  • 242
  • 16 Oct 2023
Topic Review
Few-Shot Object Detection
Few-shot object detection (FSOD) aims at designing models that can accurately detect targets of novel classes in a scarce data regime. 
  • 195
  • 16 Oct 2023
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