Optical flow

Part 2 of ebook "Experimental and theoretical advances in fluid dynamics" provides readers with contents including: multiphase flow and porous media; convection, diffusion and heat transfer; rheology and granular media; viscous flow; gallery of fluids; visualization of structures in non homogeneous flows; oil filaments produced in a stirred tank; fiber optic micro-bubble generator; dipolar vortex in a rotating system; super free fall of liquids in conical containers;...

266p tuongmothua 11-07-2024 0 0   Download

Part 2 book "Vehicle and automotive engineering" includes content: Intelligent transportation systems to support production logistics, a new scheduling software for supporting automotive component manufacturing, an overview of autonomous intelligent vehicle systems, software reliability of complex systems focus for intelligent vehicles, usage of an optical flow sensor in robotics to define orientation,... and other contents.

260p dianmotminh03 17-06-2024 0 0   Download

Ebook "Medical applications of colloids" is a collection of several chapters dealing with diverse topics of colloids and surfaces relevant to medical applications. Thus, Siiman describes the use of optical properties of uniform colloidal particles as probes in flow cytometry. In summary, this volume offers insight into a number of applications of colloid and surface science and techniques of essence in diverse medical applications.

323p manmanthanhla0201 27-02-2024 3 1   Download

Part 2 book "Information processing in medical imaging" includes content: Imaging brain activation streams from optical flow computation on 2 riemannian manifolds, high level group analysis of FMRI data basedon dirichlet process mixture models, insight into efficient image registrationtechniques and the demons algorithm, divergence based framework for diffusion tensorclustering, interpolation and regularization,... and other contents.

382p muasambanhan07 20-02-2024 2 0   Download

This study proposed a breathing rate monitoring strategy using a mono camera to track and detect sleep apnea phenomena. Breathing rates were first tracked among consecutive image frames. The human body area was then isolated and magnified using a deep neural network (DNN) model before applying the optical flow algorithm to extract and monitor the up and down changes caused by respiration.

10p viisac 15-09-2023 5 3   Download

Calculating intra-aneurysm flow uses optical flow with computational fluid dynamics simulation on the numerical analysis. This is a new method to better understand the intravascular flow and aneurysm flow as well as factors related to the inflow vortex and the inflow jet which increase the rupture risk in patients with an aneurysm.

9p vigamora 23-05-2023 6 3   Download

Data processing for obtaining global velocity fields is important in fluid mechanics. This study presents a hybrid algorithm for extracting velocity vectors from particle image velocimetry (PIV) images, which were taken during the experimental process. The hybrid method used both cross-correlation and optical-flow algorithms.

9p viharry 15-12-2022 7 4   Download

In this paper, we present and implement a method to stabilize a quadcopter prototype’s position using feature extraction and tracking from camera footage. The quadcopter's position and linear velocity are determined from images which are captured by a downward-facing camera - Logitech C270.

10p vibentley 08-09-2022 13 4   Download

Optically decodable beads link the identity of a sample to a measurement through an optical barcode, enabling libraries of biomolecules to be captured on beads in solution and decoded by fluorescence. This approach has been foundational to microarray, sequencing, and flow-based expression profiling technologies.

5p vigalileogalilei 27-02-2022 14 1   Download

Trong đề tài này, nhóm tác giả đề xuất một phương pháp mới cho việc phân vùng đối tượng trên video bằng việc dùng phát hiện vật thể nổi bật làm phương pháp phân vùng chính, cộng với việc sử dụng lan truyền mask bằng optical flow và nhận biết vật biến mất hay xuất hiện lại nhờ vào phương pháp phát hiện đối tượng.

5p viclerkmaxwel 16-02-2022 20 4   Download

Single-cell RNA sequencing has emerged as a powerful tool for characterizing cells, but not all phenotypes of interest can be observed through changes in gene expression. Linking sequencing with optical analysis has provided insight into the molecular basis of cellular function, but current approaches have limited throughput. Here, we present a high-throughput platform for linked optical and gene expression profiling of single cells.

11p viarchimedes 26-01-2022 9 0   Download

The results of studies on changes in intracranial pressure in patients undergoing laparoscopic surgery are inconsistent. Meanwhile, previous neurosurgery studies have suggested that propofol and sevoflurane have inconsistent effects on cerebral blood flow and cerebrovascular self-regulation.

9p vidietmarhopp 29-12-2021 9 0   Download

The objective of this paper is to identify elderly falls. The proposed method introduces keyframe based fall detection in elderly care system. Experiments were conducted on University of Rzeszow (UR) Fall Detection dataset, Fall Detection Dataset and MultiCam dataset.

16p redemption 20-12-2021 6 0   Download

In this study, the electrospinning method was used to prepare polyvinyl alcohol (PVA)/chitosan (CS) blend nanofibers from their solutions. The effect of blend ratios (PVA/CS: 1%, 3%, 5%, and 7% (w/w)), applied voltage, and flow rate on the morphological, optical, and thermal properties of electrospun nanofibers were investigated by scanning electron microscopy (SEM), fluorescence and UV-Vis spectroscopies, and thermogravimetric analysis (TGA), respectively.

13p tudichquannguyet 29-11-2021 7 1   Download

A method for preconcentration of Al(III) prior to its determination by inductively coupled plasma-optical emission spectrometry (ICP-OES) was developed because the sensitivity of ICP-OES is insufficient for trace-level measurement of Al(III). The method is based on the use of Coriolus versicolor-immobilized γ-Fe2O3 magnetic nanoparticles as a solid phase sorbent. The best experimental conditions were found as pH 6.0, 2.0 mL/min flow rate, 100 mg amount of C. versicolor on 150 mg of γ-Fe2O3 nanoparticles, and 500 mL of sample volume. The Al(III) absorbed on biosorbent was eluted with 5.

12p tudichquannguyet 29-11-2021 12 1   Download

The main aim of this work is to detect and track human activity, and classify actions for two publicly available video databases. In this work, a novel approach of feature extraction from video sequence by combining Scale Invariant Feature Transform and optical flow computation are used where shape, gradient and orientation features are also incorporated for robust feature formulation.

27p spiritedaway36 28-11-2021 10 1   Download

"Ebook Make: Drones teach an arduino to fly: Part 2" present construction and tuning; a bigger frame; install the power system; brushless motors and their ESCs; install the flight controller and radios; flying the S500; optical flow, sonar, and lidar...

102p kequaidan12 28-05-2021 24 5   Download

In this study, an optical-flow algorithm was applied to analyzing unsteady behavior of nearwake flow. The experiment was conducted at low-speed conditions and at Reynolds number around ReD = 1.97×104 to obtain image database for optical-flow processing. Measurement frequency was at 2000 fps.

12p cothumenhmong11 05-05-2021 27 2   Download

Action and gesture recognition provides important information for interaction between human and devices that monitors living, healthcare facilities or entertainment activities in smart homes. Recent years, there are many learning machine models studying to recognize human action and gesture. In this paper, we propose a dynamic hand gesture recognition system based on two stream-convolution network (ConvNet) architecture. Besides, we also modify the method to enhance its performance that is suitable for indoor application.

10p nguyenxuankha_bevandan 14-08-2020 22 3   Download

Studying and proposing some improvements in the burst assembly with delay reduction to reduce the communication delay over OBS networks; Studying and proposing a solution of the burst assembly with delay fairness for delay-based QoS difference, delay reduction and delay fairness of different priority flows. Studying and proposing a solution with throughput fairness, which can be applied to different types of incoming flows with Poisson and nonPoisson distribution.

27p gaocaolon6 30-07-2020 16 1   Download