Web based 3D rendering

Data visualization helps to show the information interactively, being
easy for users the interpretation of relevant topics. A huge increase has been noticed in Medicine where images represent a keystone in diagnosis. Also, in presence of 3D data, it may requires a high-end device to manipulate and control them. In this paper, we present Vicot, a remarkable web tool to render 2D/3D images in a collaborative environment over a simple network configuration. It main goal is rendering medical images and volumes, allowing users the easy and transparent manipulation of data using a non-presential communication between pairs. Vicot is developed under a model-view-control architecture, acquiring data from a DICOM (Digital Imaging and Communication in Medicine) repository with a friendly web interface. Images are displayed in high-quality resolution; volumes are rendered using a GPU Ray Tracing approach. Final output is shown in a HTML5-based web browser under any standard low-end device. Our proposal is ideal to teach and discuss medical cases. Tests performed on each stage of Vicot allows to obtain suitable limits to maximize its performance. Also, using an input/output web interface allows the independence of operative system, spreading its scope to different devices such as PCs, tablets, and smart phones

Online publishing of almost every type of 3D data has become a quasi-standard routine. Nevertheless, the integration in a web page of a single 3D model, or of a predefined restricted set of models, raises different issues compared to an efficient and effective integration of thousands of them in an online repository. In this case it is mandatory to have an automatized pipeline to prepare and homogenize the dataset. The pipeline should be able to automatically wrap 3D data in all conditions, and display every single model with the best scene setup without any (or with a minimal) interaction by the database maintainers. This paper, retracing the steps of a recent real application case, aims at showing all the faced issues (and the adopted solutions) to publish a large and heterogeneous three-dimensional dataset in a web specialized repository. We want to introduce a valid and reusable strategy, starting from the description of the pipeline adopted for data pre-processing and moving to the choices made in the 3D viewer implementation. The paper concludes with a discussion on the actual state of the integration of 3D data with the other multimedia informative layers.