Employing Feedback to Filter Caustic Waves in Underwater Scenes in Motion

A real-time approach for removing sunlight flickers from subaquatic scenarios captured in videos is presented. For this end, a de-flickering filter is designed. The start point is a moving landscape scene. Essentially, the filtering approach is based on morphological characteristics of the caustic waves. It constructs an a-priori de-flickered image which is afterwards enhanced. The algorithm employs feedback of optical flow fields and brightness in order to predict a one-step-ahead value of the brightness.Sociedad Argentina de Informática e Investigación Operativa (SADIO

Employing Feedback to Filter Caustic Waves in Underwater Scenes in Motion

A real-time approach for removing sunlight flickers from subaquatic scenarios captured in videos is presented. For this end, a de-flickering filter is designed. The start point is a moving landscape scene. Essentially, the filtering approach is based on morphological characteristics of the caustic waves. It constructs an a-priori de-flickered image which is afterwards enhanced. The algorithm employs feedback of optical flow fields and brightness in order to predict a one-step-ahead value of the brightness.Sociedad Argentina de Informática e Investigación Operativa (SADIO

Employing Feedback to Filter Caustic Waves in Underwater Scenes in Motion

A real-time approach for removing sunlight flickers from subaquatic scenarios captured in videos is presented. For this end, a de-flickering filter is designed. The start point is a moving landscape scene. Essentially, the filtering approach is based on morphological characteristics of the caustic waves. It constructs an a-priori de-flickered image which is afterwards enhanced. The algorithm employs feedback of optical flow fields and brightness in order to predict a one-step-ahead value of the brightness.Sociedad Argentina de Informática e Investigación Operativa (SADIO

Photorealistic physically based render engines: a comparative study

Pérez Roig, F. (2012). Photorealistic physically based render engines: a comparative study. http://hdl.handle.net/10251/14797.Archivo delegad

Change detection in combination with spatial models and its effectiveness on underwater scenarios

This thesis proposes a novel change detection approach for underwater scenarios and combines it with different especially developed spatial models, this allows accurate and spatially coherent detection of any moving objects with a static camera in arbitrary environments. To deal with the special problems of underwater imaging pre-segmentations based on the optical flow and other special adaptions were added to the change detection algorithm so that it can better handle typical underwater scenarios like a scene crowded by a whole fish swarm

Creating believabilty and the effects of technology on compositing

This thesis focuses on the importance of technology to create believably composited effects. It was found that many factors culminate in generating believability in a film, including: suspension of disbelief, the story, and the quality of the special effects. Many technical aspects lend to the creation of successful special effects and are involved during every stage of production. There is a discussion of several of the important criteria analyzed during preproduction, production, and post production. A brief history of the technical effect industry is discussed. Personal work for this project includes three case studies. In the form of short video projects, these studies are applications of the researched industry concepts. They deal with issues including incorporation of digital models into live action footage, using pre-existing footage, digital makeup, motion tracking, masking, color correction, and generation of artificial lights and shadows. The creation of these videos included video recording and editing and used Maya TM and After Effects TM. The final shorts showed examples of the strengths and weaknesses of the applied compositing techniques. Implications for the future directions of this field are also discussed

Ray Tracing Gems

This book is a must-have for anyone serious about rendering in real time. With the announcement of new ray tracing APIs and hardware to support them, developers can easily create real-time applications with ray tracing as a core component. As ray tracing on the GPU becomes faster, it will play a more central role in real-time rendering. Ray Tracing Gems provides key building blocks for developers of games, architectural applications, visualizations, and more. Experts in rendering share their knowledge by explaining everything from nitty-gritty techniques that will improve any ray tracer to mastery of the new capabilities of current and future hardware. What you'll learn: The latest ray tracing techniques for developing real-time applications in multiple domains Guidance, advice, and best practices for rendering applications with Microsoft DirectX Raytracing (DXR) How to implement high-performance graphics for interactive visualizations, games, simulations, and more Who this book is for: Developers who are looking to leverage the latest APIs and GPU technology for real-time rendering and ray tracing Students looking to learn about best practices in these areas Enthusiasts who want to understand and experiment with their new GPU