SIFT key-points self-adaptive extraction algorithm for video images

2012 ◽  
Author(s):  
Hongsheng Yu ◽  
Weiqi Jin
Keyword(s):  
Video Images ◽  
Key Points ◽  
Extraction Algorithm ◽  
Self Adaptive

Extraction Algorithm of Lip Characteristic Parameters Based on Interpolation

2014 ◽  
Vol 536-537 ◽  
pp. 235-240
Author(s):  
Ying Jie Meng ◽  
Li Xin Bai ◽  
Wen Jun Liu ◽  
Ming Wen Liu
Keyword(s):  
High Efficiency ◽  
Parameter Extraction ◽  
Characteristic Parameters ◽  
Motion Feature ◽  
Identity Recognition ◽  
Features Fusion ◽  
Parameters Extraction ◽  
Key Points ◽  
Extraction Algorithm ◽  
Motion Features

In the research of identity recognition based on lip motion features, there are limitations for the existing algorithms of lip characteristic parameters extraction. This paper uses the strategy of lip static/dynamic geometric features fusion, designs the lip feature parameter extraction program based on interpolation, and implements the major aspects of processing algorithm of the program. The solution is based on the speaker's key six primitives spelling lip sequence image, firstly generates the lip key point coordinates in the image, then based on Lagrange interpolation obtains function curve coefficient of upper and lower lips' key points , lastly the two curve coefficients are combined to form lip motion feature information of human speaker's some specific sounds; Simulation results show that the extraction of characteristic parameters of the program not only have a high efficiency and availability, but also have the advantages of good storage.

Adaptive SIFT Matching Relay Tracking of Variable Scene based on Intelligent Agent

2011 ◽  
Vol 71-78 ◽  
pp. 2649-2652
Author(s):  
Ju Bao Qu ◽  
Sheng Liu ◽  
Shu Juan Wang
Keyword(s):  
Intelligent Agent ◽  
Scale Space ◽  
Target Image ◽  
Sift Algorithm ◽  
Video Images ◽  
Key Points ◽  
Complex Scenes ◽  
Change Of Perspective ◽  
Imaging Conditions ◽  
Selection Of

The goal of continuous tracking between different video problem, a change of scene with Intelligent Agent between the goal of achieving the automatic extraction and identification; improved SIFT algorithm, to factor in the selection of scale space with the goal of scaling the size of adaptive change, overcome image rotation, scale Scaling, brightness change, disturbance, maintaining a change of perspective, affine transformation, noise stability, from different imaging conditions and complex scenes of dynamic video images to extract key points and matched to achieve different video continuous track between the target image. experiments show that the algorithm real time, robustness, matching accuracy.

Research and Design of Video Acquisition System Based on FPGA

2014 ◽  
Vol 644-650 ◽  
pp. 3472-3475
Author(s):  
Bing Li Liu ◽  
Bing Qi Liu ◽  
Lang Pan ◽  
Lu Wang
Keyword(s):  
Real Time ◽  
Detection System ◽  
Design Method ◽  
Video Data ◽  
Acquisition System ◽  
Validity And Reliability ◽  
Video Acquisition ◽  
Video Images ◽  
Key Points ◽  
Display Function

According to the requirement of real-time detection system towards acquisition, storage and display of video data, a design method of video acquisition system based on FPGA is put forward. With FPGA as its core controller, the design presents a simplified video acquisition system to achieve standard video images. The design elaborately illustrates key points of video acquisition system, thus the acquisition, storage and display function of real-time video can be technically realized. In the end, the validity and reliability of this system is verified through simulation under Modelsim circumstance combined with online logical analyzer.

Computing cell tractions from particle displacements on silicone rubber substrata

1994 ◽  
Vol 52 ◽  
pp. 162-163
Author(s):  
Tim Oliver ◽  
Akira Ishihara ◽  
Ken Jacobsen ◽  
Micah Dembo
Keyword(s):  
Plane Stress ◽  
Linear Elasticity ◽  
Silicone Rubber ◽  
Mathematical Analysis ◽  
Elastic Recovery ◽  
Video Images ◽  
Cell Traction Forces ◽  
Latex Beads ◽  
Cell Traction ◽  
Better Than

In order to better understand the distribution of cell traction forces generated by rapidly locomoting cells, we have applied a mathematical analysis to our modified silicone rubber traction assay, based on the plane stress Green’s function of linear elasticity. To achieve this, we made crosslinked silicone rubber films into which we incorporated many more latex beads than previously possible (Figs. 1 and 6), using a modified airbrush. These films could be deformed by fish keratocytes, were virtually drift-free, and showed better than a 90% elastic recovery to micromanipulation (data not shown). Video images of cells locomoting on these films were recorded. From a pair of images representing the undisturbed and stressed states of the film, we recorded the cell’s outline and the associated displacements of bead centroids using Image-1 (Fig. 1). Next, using our own software, a mesh of quadrilaterals was plotted (Fig. 2) to represent the cell outline and to superimpose on the outline a traction density distribution. The net displacement of each bead in the film was calculated from centroid data and displayed with the mesh outline (Fig. 3).

Autism and Neurodiversity: Addressing Concerns and Offering Implications for the School-Based Speech-Language Pathologist

2020 ◽  
pp. 1-7
Author(s):  
Laura S. DeThorne ◽  
Kelly Searsmith
Keyword(s):  
Service Provision ◽  
Individualized Education Program ◽  
Institutional Constraints ◽  
Individualized Education ◽  
Existing Structures ◽  
Eligibility Determination ◽  
Speech Language Pathologist ◽  
School Based ◽  
Key Points ◽  
C Center

Purpose The purpose of this article is to address some common concerns associated with the neurodiversity paradigm and to offer related implications for service provision to school-age autistic students. In particular, we highlight the need to (a) view first-person autistic perspectives as an integral component of evidence-based practice, (b) use the individualized education plan as a means to actively address environmental contributions to communicative competence, and (c) center intervention around respect for autistic sociality and self-expression. We support these points with cross-disciplinary scholarship and writings from autistic individuals. Conclusions We recognize that school-based speech-language pathologists are bound by institutional constraints, such as eligibility determination and Individualized Education Program processes that are not inherently consistent with the neurodiversity paradigm. Consequently, we offer examples for implementing the neurodiversity paradigm while working within these existing structures. In sum, this article addresses key points of tension related to the neurodiversity paradigm in a way that we hope will directly translate into improved service provision for autistic students. Supplemental Material https://doi.org/10.23641/asha.13345727

The impact of cultural factors on attachment dynamics: a view from Irish society

2019 ◽  
Vol 13 (2) ◽  
pp. 207-223
Author(s):  
Michael O’Toole
Keyword(s):  
Significant Role ◽  
Emotional Development ◽  
Cultural Factors ◽  
Seamus Heaney ◽  
Irish Society ◽  
Irish Context ◽  
Key Points ◽  
The Many ◽  
The Impact ◽  
The Relationship

In this article I examine aspects of the relationship between mothers and sons from an attachment perspective in an Irish context. Through the works of Irish writers such as Seamus Heaney, John McGahern, and Colm Tóibín, I focus on particular aspects of this relationship, which fails to support the developmental processes of separation and individuation in the many men who come to me for psychotherapy. I illustrate key points concerning this attachment dynamic through the use of clinical examples of my work with two men from my practice. While acknowledging that many other cultural factors play a significant role in the emotional development of children, integrating the work of our poets, novelists, and scholars with an attachment perspective

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