Non-Humanoid Creature Performance from Human Acting

publications, research and development

In this work we propose a framework for using human acting as input for the animation of non-humanoid creatures; captured motion is classified using machine learning techniques, and a combination of preexisting clips and motion retargeting are used to synthetize new motions. This should lead to a broader use of motion capture.

This work was presented as a poster at SIGGRAPH 2016. Click here for the full publication.

Stereoscopic image quality in virtual environments

publications

Abstract: The number of products capable of displaying stereoscopic (also known as 3D) images has been growing in recent years. The use of this technology has outgrown the silver screen and is now available in televisions, computers, tablets, and even cell phones. Due to its nature, content created for stereoscopic media requires attention in relation to some characteristics not present in the context of monoscopic media. With a focus on image creation, the objective of this research was to assess how different stereoscopic image generation methods can affect human perception. To achieve this a virtual environment was created and from it different videos were generated using various methods including converging cameras, parallel cameras, and depth image-based rendering (DIBR). These videos were shown to participants who assessed the picture quality, depth quality, and visual comfort of the media. It was found that there was very little difference between the perception of images generated by parallel and convergent cameras, while there was a substantial difference in terms of perception between these two types of image and DIBR images. Such results can significantly affect the choice of technology for stereoscopic image generation, influencing the production costs, the methods involved, and human and machine time consumption.

Full paper

Originaly presented at the International Conference on 3d Imaging, december 2014.

Island Adventures

publications

Cross-media adaptation

Dias Velho e os Corsários (1988) is a Graphic Novel, written and illustrated by Eleutério Nicolau da Conceição, which depicts a pirate invasion to the island of Santa Catarina in the 17th century. Using a historic event as inspiration the work successfully represents local themes such as culture and social organization. The audience to which the publication was originally targeted (13+) allowed the story to be represented in a realistic manner, with complex characters and episodes of violence and death. This work details the adaptation of such story to the media of animation and a significantly younger audience (pre-schoolers).

Complete Article

This work was originally presented at: XVIII Colóquio Internacional da Escola Latino-Americana de Comunicação, december 2014.

Stereoscopy in the Cinematographic Languagem

publications

A historical analysis of diferente elements of cinematographic language

Stereoscopy, popularly known as 3d, is a technology consisting on the simultaneous reproduction of two images, which results in a greater perception of depth. This article intends to investigate possible reasons for the fact that stereoscopy has never been absorbed as a natural part of cinematographic language. To investigate the matter, we have studied how other technologies such as sound and color were incorporated into cinema, and compare those cases with the several incursions of stereoscopy in cinema’s history. We have found similarities and differences in the history of the different technologies, and have hypothesized reasons for the sporadic characteristic of the stereoscopic phenomena: the lack of quality in many productions, due to bad capturing or poor 2d-3d conversion; and its self-referential and gimmick like use.

Complete Article

Originaly published at: RUA – Revista Universitária do Audiovisual, Setembro de 2012.