نتایج جستجو برای: image formation algorithm ifa

تعداد نتایج: 1561705  

1996
Kentaro Toyama Gregory D. Hager

We present an incremental focus of attention (IFA) architecture for adding robust-ness to software-based, real-time, motion trackers. The framework provides a structure which, when given the entire camera image to search, eeciently focuses the attention of the system into a narrow set of conngurations that includes the target conngura-tion. IFA ooers a means for automatic tracking initializatio...

SAR imaging systems are as a complement to passive remote sensing but the process of image formation in this systems is so complex So that the final image in the system is formed after the three basic steps: raw data acquisition, forming the signal space and image space. In addition, various factors within the system and outside the system are involved in the information that recorded by SAR, s...

Journal: :Analytical biochemistry 1999
Z Huang D J Waxman

Chloroacetaldehyde (CA) is a nephrotoxic and neurotoxic metabolite of the anticancer drug ifosfamide (IFA) and is a dose-limiting factor in IFA-based chemotherapy. Plasma levels of CA in IFA-treated cancer patients are often difficult to determine due to the lack of a sufficiently sensitive and specific analytical method. We have developed a simple and sensitive HPLC method with fluorescence de...

1998
Christopher C. Taylor Jan P. Allebach Zygmunt Pizlo

In this paper we describe the Image Fidelity Assessor (IFA), a model of the human visual system designed to evaluate perceived fidelity. In particular, we describe the structure of the model, present results from a contrast discrimination experiment that are used within the model, and demonstrate preliminary results of the model. The IFA is designed to be both physiologically and psychophysical...

1998
Christopher C. Taylor Jan P. Allebach Zygmunt Pizlo

In this paper we describe the Image Fidelity Assessor (IFA), a model of the human visual system designed to evaluate perceived fidelity. In particular, we describe the structure of the model, present results from a contrast discrimination experiment used within the model, and demonstrate preliminary results of the model. The IFA is designed to be both physiologically and psychophysically plausi...

Journal: :journal of advances in computer research 0

clustering is the process of dividing a set of input data into a number of subgroups. the members of each subgroup are similar to each other but different from members of other subgroups. the genetic algorithm has enjoyed many applications in clustering data. one of these applications is the clustering of images. the problem with the earlier methods used in clustering images was in selecting in...

Journal: :رادار 0
سید روح الله ثمره هاشمی سید علیرضا سیدین

at first, ground-based circular strip-map synthetic aperture radar (gb-csmsar) and its capabilities is introduced and the received signal model, 2-d frequency spectrum and the azimuth and range resolutions are derived and compared with the linear motion strip-map sar resolutions. because of the stability of the path and speed of antenna in gb-csmsar a frequency domain imaging algorithm is sugge...

Journal: :iranian journal of fuzzy systems 2014
p. moallem n. razmjooy b. s. mousavi

potato image segmentation is an important part of image-based potato defect detection. this paper presents a robust potato color image segmentation through a combination of a fuzzy rule based system, an image thresholding based on genetic algorithm (ga) optimization and morphological operators. the proposed potato color image segmentation is robust against variation of background, distance and ...

2015
Aramsri Meeprom Weerachat Sompong Tanyawan Suantawee Thavaree Thilavech Catherine B. Chan Sirichai Adisakwattana

BACKGROUND Isoferulic acid (IFA), a naturally occurring cinnamic acid derivative, is a main active ingredient of the rhizoma of Cimicifuga dahurica. It has been shown various pharmacological activities. The aim of the study was to investigate the effect of IFA against MG-induced protein glycation and oxidative DNA damage. Free radical scavenging activity and the MGO-trapping abilities of IFA we...

Journal: :Toxicology letters 2015
Galvin Vredenburg Shalenie den Braver-Sewradj Barbara M A van Vugt-Lussenburg Nico P E Vermeulen Jan N M Commandeur J Chris Vos

Cyclophosphamide (CPA) and ifosfamide (IFA) are widely used anticancer agents that require metabolic activation by cytochrome P450 (CYP) enzymes. While 4-hydroxylation yields DNA-alkylating and cytotoxic metabolites, N-dechloroethylation results in the generation of neuro- and nephrotoxic byproducts. Gene-directed enzyme prodrug therapies (GDEPT) have been suggested to facilitate local CPA and ...

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