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- research-articleJanuary 2024
New Insights in Smooth Occluding Contours for Nonphotorealistic Rendering
IEEE Computer Graphics and Applications (ICGA), Volume 44, Issue 1Jan.-Feb. 2024, Pages 76–85https://doi.org/10.1109/MCG.2023.3338784Computing occluding contours is often a crucial step in stroke-based artistic 3-D stylization for movies, video games, and visualizations. However, many existing applications use only simple curve stylization techniques, such as thin black lines or hand-...
- research-articleJanuary 2024
A Workflow to Visually Assess Interobserver Variability in Medical Image Segmentation
IEEE Computer Graphics and Applications (ICGA), Volume 44, Issue 1Jan.-Feb. 2024, Pages 86–94https://doi.org/10.1109/MCG.2023.3333475We introduce a workflow for the visual assessment of interobserver variability in medical image segmentation. Image segmentation is a crucial step in the diagnosis, prognosis, and treatment of many diseases. Despite the advancements in autosegmentation, ...
- opinionJanuary 2024
Wildfire, Snow, and, Panoramic Ray Tracing
IEEE Computer Graphics and Applications (ICGA), Volume 44, Issue 1Jan.-Feb. 2024, Pages 38–39https://doi.org/10.1109/MCG.2023.3342363The current issue features three articles from our regular queue that cover a range of topics in visualization, rendering, and mixed reality (MR), including interactive visual analytics, ray tracing, appearance rendering, and augmented reality (AR) and ...
- discussionNovember 2023
On Raising a Virtual Human
IEEE Computer Graphics and Applications (ICGA), Volume 43, Issue 6Nov.-Dec. 2023, Pages 133–140https://doi.org/10.1109/MCG.2023.3320319I have been fortunate to have experienced and contributed to the software development of virtual humans. Whether they are Avatars, Conversational Agents, game NPCs, or Virtual Influencers, they all have origins in computer graphics (CG). Indeed, the “DNA” ...
- research-articleOctober 2023
Panoramic Ray Tracing for Interactive Mixed Reality Rendering Based on 360° RGBD Video
IEEE Computer Graphics and Applications (ICGA), Volume 44, Issue 1Jan.-Feb. 2024, Pages 62–75https://doi.org/10.1109/MCG.2023.3327383This article presents an interactive panoramic ray tracing method for rendering real-time realistic lighting and shadow effects when virtual objects are inserted in 360$^{\circ }$∘ RGBD videos. First, we approximate the geometry of the real scene. We ...
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- research-articleAugust 2023
Rendering the Bluish Appearance of Snow: When Light Transmission Matters
IEEE Computer Graphics and Applications (ICGA), Volume 44, Issue 1Jan.-Feb. 2024, Pages 50–61https://doi.org/10.1109/MCG.2023.3307517Material appearance is largely determined by complex light attenuation processes. The distinct bluish colorations that can be observed when light is transmitted through snow are among the most striking outcomes of these processes. In this article, we ...
- research-articleJune 2023
Comparing Shape Representations for the Aesthetic Judgment of 3-D Shape Pairs
IEEE Computer Graphics and Applications (ICGA), Volume 43, Issue 6Nov.-Dec. 2023, Pages 33–45https://doi.org/10.1109/MCG.2023.3286047Visual aesthetics of 3-D shapes is a fundamental perceptual attribute. In this article, we explore the question of how different shape representations affect the aesthetic judgments of shape pairs. Specifically, we compare human responses to perceptual ...
- research-articleMarch 2023
LayerNet: A One-Step Layered Network for Semantic Segmentation at Night
IEEE Computer Graphics and Applications (ICGA), Volume 43, Issue 6Nov.-Dec. 2023, Pages 9–21https://doi.org/10.1109/MCG.2023.3253167We have collected a novel, nighttime scene dataset, called Rebecca, including 600 real images captured at night with pixel-level semantic annotations, which is currently scarce and can be invoked as a new benchmark. In addition, we proposed a one-step ...
- research-articleSeptember 2020
Interactive Graphics in Industry: The Early Days
IEEE Computer Graphics and Applications (ICGA), Volume 40, Issue 5Sept.-Oct. 2020, Pages 89–99https://doi.org/10.1109/MCG.2020.3012228Computer graphics has a long history. Industrial organizations and laboratories drove significant improvements as they adapted and assembled basic capabilities into complex interactive applications. Of particular concern in the early days was providing ...
- research-articleSeptember 2020
Cantonese Porcelain Image Generation Using User-Guided Generative Adversarial Networks
IEEE Computer Graphics and Applications (ICGA), Volume 40, Issue 5Sept.-Oct. 2020, Pages 100–107https://doi.org/10.1109/MCG.2020.3012079Automated image style transfer is of great interest given the recent advances in generative adversarial networks (GANs). However, it is challenging to generate synthesized images from abstract masks while preserving detailed patterns for certain kinds of ...
- research-articleJuly 2020
Motion Primitives Classification Using Deep Learning Models for Serious Game Platforms
- Nikolaos Bakalos,
- Ioannis Rallis,
- Nikolaos Doulamis,
- Anastasios Doulamis,
- Athanasios Voulodimos,
- Vassilios Vescoukis
IEEE Computer Graphics and Applications (ICGA), Volume 40, Issue 4July-Aug. 2020, Pages 26–38https://doi.org/10.1109/MCG.2020.2985035Serious games are receiving increasing attention in the field of cultural heritage (CH) applications. A special field of CH and education is intangible cultural heritage and particularly dance. Machine learning (ML) tools are necessary elements for the ...
- research-articleMarch 2020
Seeing Through the “Science Eyes” of the ExoMars Rover
IEEE Computer Graphics and Applications (ICGA), Volume 40, Issue 2March-April 2020, Pages 71–81https://doi.org/10.1109/MCG.2020.2970796The ExoMars rover, due to launch in mid 2020, will travel to Mars in search of signs of past or present habitability. The rover will carry the Panoramic Camera, PanCam, a scientific camera system designed to provide crucial remote sensing capabilities as ...
- research-articleMarch 2020
- research-articleMay 2019
Mesh-Based Computation for Solving Photometric Stereo With Near Point Lighting
IEEE Computer Graphics and Applications (ICGA), Volume 39, Issue 3May-June 2019, Pages 73–85https://doi.org/10.1109/MCG.2019.2909360We tackle the problem of dense reconstruction with a practical system, in which near point lighting (NPL) is employed. Different from the conventional formulation of photometric stereo (PS) that assumes parallel lighting, PS under the NPL condition is a ...
- research-articleMay 2019
- research-articleMay 2019
Synthetic Aperture Imaging With Drones
IEEE Computer Graphics and Applications (ICGA), Volume 39, Issue 3May-June 2019, Pages 8–15https://doi.org/10.1109/MCG.2019.2896024Synthetic apertures sample the signal of wide aperture sensors with either arrays of static or single moving smaller aperture sensors whose individual signals are computationally combined to increase the resolution, depth-of-field, frame rate, contrast, ...
- research-articleJanuary 2019
Single Image Restoration for Participating Media Based on Prior Fusion
- Joel Felipe de Oliveira Gaya,
- Amanda Duarte,
- Felipe Codevilla Moraes,
- Paulo Drews-Jr,
- Silvia Silva da Costa Botelho
IEEE Computer Graphics and Applications (ICGA), Volume 39, Issue 1January 2019, Pages 71–83https://doi.org/10.1109/MCG.2018.2881388This paper describes a method to restore degraded images captured in a participating media—fog, turbid water, sand storm, etc. Differently from the related work that deals with each medium separately, we obtain generality by using an image formation ...
- research-articleNovember 2017
A Generative Audio-Visual Prosodic Model for Virtual Actors
IEEE Computer Graphics and Applications (ICGA), Volume 37, Issue 6November/December 2017, Pages 40–51https://doi.org/10.1109/MCG.2017.4031070An important problem in computer animation of virtual characters is the expression of complex mental states during conversation using the coordinated prosody of voice, rhythm, facial expressions, and head and gaze motion. In this work, the authors propose ...
- research-articleNovember 2017
Blending Face Details: Synthesizing a Face Using Multiscale Face Models
IEEE Computer Graphics and Applications (ICGA), Volume 37, Issue 6November/December 2017, Pages 65–75https://doi.org/10.1109/MCG.2017.4031069Creating realistic 3D face models is a challenging problem in computer graphics because humans are so sensitive to facial abnormalities. The authors propose a method to synthesize a 3D face model using weighted blending of multiscale details from ...
- research-articleNovember 2017
Cloth Animation Retrieval Using a Motion-Shape Signature
IEEE Computer Graphics and Applications (ICGA), Volume 37, Issue 6November/December 2017, Pages 52–64https://doi.org/10.1109/MCG.2017.4031068In cloth simulation, the behavior of textiles largely depends on initial conditions, parameters, and simulation techniques. Usually, several combinations of those aspects are altered until a simulation setting is found to create a satisfying animation. ...