نتایج جستجو برای: similarity index

تعداد نتایج: 498566  

اسفندیاری, عزت اله, سفالیان, امید, شکرپور, مجید , صارمی راد, بابک , پورمحمد, علیرضا ,

Genetic diversity of 45 wheat varietions were studied using AFLP markers. From 11 primer combinations of PstI and Mse1for obtaining AFLP polymorphism, six primer combinations (P-CGA/M-CTA, P-ATG/M-CTG, P-ATG/M-CAT, P-AGT/M-CTA, P-AGT/M-CAG and P-ATG/M-CAG) produced polymorphic bands. Totally, 328 bands be produced that 207 bands (63.10%) were polymorphic, which showing high polymorphism among g...

Journal: :علوم باغبانی ایران 0
موسی رسولی دانشجوی سابق دکتری پردیس کشاورزی و منابع طبیعی دانشگاه تهران و استادیار گروه مهندسی فضای سبز دانشکدة کشاورزی دانشگاه ملایر محمدرضا فتاحی مقدم دانشیار پردیس کشاورزی و منابع طبیعی دانشگاه تهران ذبیح اله زمانی دانشیار مؤسسه اصلاح و تهیه نهال و بذر کرج علی ایمانی استاد پردیس کشاورزی و منابع طبیعی دانشگاه تهران علی عبادی استاد پردیس کشاورزی و منابع طبیعی دانشگاه تهران

using microsatellite molecular markers is important particularly due to their high accuracy in studying the genome of the fruit trees. in this study, genetic diversity and relations of 68 almond cultivars and genotypes using microsatellite marker (ssr) were studied. genomic dna extracted from young leaf tissues and pcr reactions were performed using 22 selected primers (among 100 primers) of mi...

Journal: :CoRR 2014
Yasel Garcés Suárez Esley Torres Osvaldo Pereira Roberto Rodríguez

In this work, we propose a new similarity index for images considering the entropy function and group theory. This index considers an algebraic group of images, it is defined by an inner law that provides a novel approach for the subtraction of images. Through an equivalence relationship in the field of images, we prove the existence of the quotient group, on which the new similarity index is d...

Aelaie, Mitra, Eghlima, Ghasem, Hadian, Javad, Kheiry, Azizollah, Sanikhani, Mohsen,

Twenty-two G. glabra populations were used to study the genetic diversity of ISSR molecular markers. 12 primers were used to amplification of genomic DNA fragments of G. glabra populations. High genetic diversity based on ISSR markers was observed among individuals. A total of 130 bands were formed and 105 bands were polymorphic. The mean polymorphism percentage among studied populations was 80...

2009
Soroor Behbahani Ali Motie Nasrabadi

The brain is a highly complex system. Understanding the behavior and dynamics of billions of interconnected neurons from the brain signal requires knowledge of several signalprocessing techniques, from the linear and non-linear domains. The analysis of EEG signals plays an important role in a wide range of applications, such as psychotropic drug research, sleep studies, seizure detection and hy...

2003
Ilya Shmulevich

A popular model class for studying musical pitch contour is the so-called combinatorial model of contour (Friedmann, 1985, 1987; Marvin & Laprade, 1987; Polansky & Bassein, 1992; Morris, 1993; Quinn, 1997,1999). This model incorporates relations between adjacent as well as non-adjacent notes. Having a formal mathematical representation of contour structure, this model allows for quantification ...

2001
Peng Wu B. S. Manjunath Shivkumar Chandrasekaran

A practical method for creating a high dimensional index structure that adapts to the data distribution and scales well with the database size, is presented. Typical media descriptors, such as texture features, are high dimensional and are not uniformly distributed in the feature space. The performance of many existing methods degrade if the data is not uniformly distributed. The proposed metho...

Journal: :Sig. Proc.: Image Comm. 2010
Chaofeng Li Alan C. Bovik

The assessment of image quality is important in numerous image processing applications. Two prominent examples, the Structural Similarity Image (SSIM) index and Multi-scale Structural Similarity (MS-SSIM) operate under the assumption that human visual perception is highly adapted for extracting structural information from a scene. Results in large human studies have shown that these quality ind...

2011

In Content-Based Image Retrieval systems it is important to use an efficient indexing technique in order to perform and accelerate the search in huge databases. The used indexing technique should also support the high dimensions of image features. In this paper we present the hierarchical index NOHIS-tree (Non Overlapping Hierarchical Index Structure) when we scale up to very large databases. W...

2009
Songnan Li King Ngi Ngan

The Structural Similarity (SSIM) Index is a very popular image quality assessment algorithm due to its good performance and simple calculation. This paper analyzes the influence of the smooth region on the performance of SSIM. It was found out that SSIM tends to depend on the quality of the smooth region to assess the quality of the whole image. From analysis by means of the SSIM quality map, w...

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