https://www.cs.ucla.edu/~dt/papers/mia96/mia96.pdf

Deformable models in medical image analysis: a survey

In recent years, many shape representations and geometric algorithms have been proposed for matching 3D shapes. Usually, each algorithm is tested on a different (small) database of 3D models, and thus no direct comparison is available for competing methods. We describe the Princeton Shape Benchmark (PSB), a publicly available database of polygonal models collected from the World Wide Web and a suite of tools for comparing shape matching and classification algorithms. One feature of the benchmark is that it provides multiple semantic labels for each 3D model. For instance, it includes one classification of the 3D models based on function, another that considers function and form, and others based on how the object was constructed (e.g., man-made versus natural objects). We find that experiments with these classifications can expose different properties of shape-based retrieval algorithms. For example, out of 12 shape descriptors tested, extended Gaussian images by B. Horn (1984) performed best for distinguishing man-made from natural objects, while they performed among the worst for distinguishing specific object types. Based on experiments with several different shape descriptors, we conclude that no single descriptor is best for all classifications, and thus the main contribution of this paper is to provide a framework to determine the conditions under which each descriptor performs best.

/pdf/the-princeton-shape-benchmark-2gmwi9i096.pdf

The Princeton Shape Benchmark

BackgroundLung auscultation and bedside chest radiography are routinely used to assess the respiratory condition of ventilated patients with acute respiratory distress syndrome (ARDS). Clinical experience suggests that the diagnostic accuracy of these procedures is poor.MethodsThis prospective study

Comparative Diagnostic Performances of Auscultation, Chest Radiography, and Lung Ultrasonography in Acute Respiratory Distress Syndrome

Recent developments in techniques for modeling, digitizing and visualizing 3D shapes has led to an explosion in the number of available 3D models on the Internet and in domain-specific databases. This has led to the development of 3D shape retrieval systems that, given a query object, retrieve similar 3D objects. For visualization, 3D shapes are often represented as a surface, in particular polygonal meshes, for example in VRML format. Often these models contain holes, intersecting polygons, are not manifold, and do not enclose a volume unambiguously. On the contrary, 3D volume models, such as solid models produced by CAD systems, or voxels models, enclose a volume properly. This paper surveys the literature on methods for content based 3D retrieval, taking into account the applicability to surface models as well as to volume models. The methods are evaluated with respect to several requirements of content based 3D shape retrieval, such as: (1) shape representation requirements, (2) properties of dissimilarity measures, (3) efficiency, (4) discrimination abilities, (5) ability to perform partial matching, (6) robustness, and (7) necessity of pose normalization. Finally, the advantages and limitations of the several approaches in content based 3D shape retrieval are discussed.

/pdf/a-survey-of-content-based-3d-shape-retrieval-methods-1p1e9hurpn.pdf

A survey of content based 3D shape retrieval methods

The American Thoracic Society/European Respiratory Society jointly created a Task Force on "Outcomes for COPD pharmacological trials: from lung function to biomarkers" to inform the chronic obstructive pulmonary disease research community about the possible use and limitations of current outcomes and markers when evaluating the impact of a pharmacological therapy. Based on their review of the published literature, the following document has been prepared with individual sections that address specific outcomes and markers, and a final section that summarises their recommendations.

/pdf/outcomes-for-copd-pharmacological-trials-from-lung-function-4a4k924y7q.pdf

Outcomes for COPD pharmacological trials: From lung function to biomarkers

In this paper we present a new mobile service that enable auto-production of 3D graphics content for mobile platform. The general benefit of this service is that it enriches the content of the communication, containing a video stream of an animated avatars produced by dedicated servers controlled by the mobile end-user. The approach consists in selecting an avatar, download it on the mobile phone as a 3D object and composing the message by playing with avatar instead of typing text. Message can be enriched more by adding background to the scene and subtitles for animation sub-sequences. The tests performed show the feasibility of the proposed solution in terms of transmission cost.

Auto-production 3D Graphics Content for Mobile Communication

Commercial and standard in robust multimedia applications

Markovian modeling on programmable retina

Music, video, and 3D characters are just some content examples that imposed themselves as a very important component of data distribution to mobile terminals. Hence, to reliably ascertain the related property rights is nowadays a crucial issue. This paper presents a study devoted to robust video watermarking in mobile networks: it reconsiders a method developed for regular networks and reevaluates it under the mobile constraints. Experiments were carried out in cooperation with the SFR wireless service provider in France. The obtained results fulfil properties as: robustness (with respect to common attacks), transparency, obliviousness, and low probability of false alarm.

http://www.wseas.us/e-library/conferences/2005athens/cscc/papers/497-297.pdf

Spread spectrum watermarking for low rate video

This paper presents a set of information and communication technologies developed with the goal to improve the practice of cued speech. They are based on three-dimensional (3D) graphics and are covering the entire end-to-end content chain: production, transmission, and visualization. Starting from defining a set of potential applications, the requirements of the targeted system for cued speech are set. The research and development path takes into account high-quality animation, real-time constraints, personalization, user acceptability and, equally important, the easiness and feasibility of the deployment. The latter led to a strong orientation toward open standards. The original components of the system include 3D graphics and animation encoders, streaming servers, and visualization engines. The core technology is validated in two real-time applications: a web service for text to animation conversion and a chat service supporting two or more users.

Francoise Preteux

Papers

Auto-production 3D Graphics Content for Mobile Communication

Commercial and standard in robust multimedia applications

Markovian modeling on programmable retina

Spread spectrum watermarking for low rate video

Online animation system for practicing cued speech