There are several strategies of how to retrieve depth information from a sequence of images, like depth from motion, depth from shading and depth from stereopsis. In this paper, we introduce a new method to retrieve depth based on motion and stereopsis. A motion detection representation helps establishing further correspondences between different motion information. This representation bases in...

High content screening (HCS) is a rapid and flexible tool for studying biological processes in great detail at a high throughput. As a consequence, HCS campaigns generate large amounts of data that need to be analyzed. The initial analysis of acquired images can include object segmentation, calculation of object properties and object classification into different populations. Screening campaign...

In depth from defocus (DFD), when images are captured with different camera parameters, a relative magnification is induced between them. Image warping is a simpler solution to account for magnification than seemingly more accurate optical approaches. This work is an investigation into the effects of magnification on the accuracy of DFD. We comment on issues regarding scaling effect on relative...

A method for depth estimation in a 2D image using wavelet analysis has been implemented with less computation that converts two-dimensional images of limited depth of field (DOF) into depth estimation for 3D image construction. Each image is first transformed to YUV domain and the Y component of the image is further transformed to the wavelet domain for major object detection. According to our ...

Pose Recovery (PR) and Human Behavior Analysis (HBA) have been a main focus of interest from the beginnings of Computer Vision and Machine Learning. PR and HBA were originally addressed by the analysis of still images and image sequences. More recent strategies consisted of Motion Capture technology (MOCAP), based on the synchronization of multiple cameras in controlled environments; and the an...

BACKGROUND Antimicrobial resistance is a major global health challenge. Metagenomics allows analyzing the presence and dynamics of "resistomes" (the ensemble of genes encoding antimicrobial resistance in a given microbiome) in disparate microbial ecosystems. However, the low sensitivity and specificity of available metagenomic methods preclude the detection of minority populations (often presen...

This paper attempts to draw together results from information systems research, linguistic theory, and methodology in order to present a unified framework in which to understand conceptual models. Three different roles of conceptual models (CM's) in the design and use of information systems (IS's) are investigated. The descriptive role of a CM is that it is an abstract representation of the uni...

Quality of sleep greatly affects a person’s physiological well-being. Traditional sleep monitoring systems are expensive in cost and intrusive enough that they disturb natural sleep of clinical patients. In this paper, we propose an inexpensive non-intrusive sleep monitoring system using recorded depth video only. In particular, we propose a two-part solution composed of depth video compression...