نتایج جستجو برای: free object

تعداد نتایج: 798917  

Journal: :Remote Sensing 2021

Remote sensing image object detection has been studied by many researchers in recent years using deep neural networks. However, optical remote images contain scenes with small and dense objects, resulting a high rate of misrecognition. Firstly, this work we selected layer aggregation network updated deformable convolution layers as the backbone to extract features. The classification objects wa...

Journal: :IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing 2021

Accurate detection of multi-class instance objects in remote sensing images (RSIs) is a fundamental but challenging task the field aviation and satellite image processing, which plays crucial role wide range practical applications. Compared with natural image-based object task, RSIs-based still faces two main challenges: 1) The often present large variations size, they are densely arranged give...

1991
Anthony S. K. Cheng Peter J. Robinson John Staples

For representing high level knowledge, such as the mathematical knowledge used in interactive theorem provers and veriication systems, it is desirable to extend Prolog's concept of data object. A basic reason is that Prolog data objects | Herbrand objects | are terms of a minimal object language, which does not include its own object variables, or quantiication over those variables. Qu-Prolog (...

1994
Alessandro Panconesi Marina Papatriantafilou Philippas Tsigas Paul M. B. Vitányi

We present new distributed randomized naming protocols improving previous results in renaming and unique processor identity protocols. They are wait-free (which implies maximal fault-tolerance) and allow stronger adversaries. They also have low complexity. We give the rst wait-free protocol achieving optimal key space range. (This is impossible for deterministic wait-free methods, so we use ran...

Journal: :journal of agricultural science and technology 2010
a. farzaneh

forest classification on the basis of satellite images is a promising technique both for primary map production and for map updating and forest monitoring. for accurate for-est classification into three classes, using mapping by canopy cover density “high spatial resolution satellite images have to be used in order to obtain the required spatial detail” [schneider, 1999]. at the same time, the ...

Journal: :Acta psychologica 1998
S Nicolas A Marchal

The experiments reported here were designed to explore the bizarreness effect in implicit and explicit memory by using simple line drawings of common objects (normal vs. bizarre). Each drawing was presented alone under mixed-list encoding conditions. Results showed that performance on explicit conceptual memory tests (cued recall in Experiments 1 and 2) was higher when material was studied in a...

1991
Jen-Hui Chuang Narendra Ahuja

Potential functions are used to represent the topological structure of free space in solving path planning problems because of the simplicity in the free space representation and the guidance provided by the negative gradient of the potential field in the form of repulsive force. In this paper, Newtonian potential function is used to represent polygonal objects and obstacles. The closedform exp...

2015
Arto Annila Erkki Kolehmainen

Vitalism was abandoned already for a long time ago, yet the impression that animate beings differ in some fundamental way from inanimate objects continues to thrive. Here, we argue that scale free patterns, found throughout nature, present convincing evidence that this demarcation is only imaginary. Therefore, all systems ought to be regarded alike, i.e., all are consuming free energy in least ...

2006
Olcay Sertel Cem Ünsalan

Segmenting 3D object surfaces is required for various high level computer vision and computer graphics applications. In computer vision, recognizing and estimating poses of 3D objects heavily depend on segmentation results. Similarly, physically meaningful segments of a 3D object may be useful in various computer graphics applications. Therefore, there are many segmentation algorithms proposed ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1391

in this work, a novel and fast method for direct analysis of volatile compounds (davc) of medicinal plants has been developed by holding a filament from different parts of a plant in the gc injection port. the extraction and analysis of volatile components of a small amount of plant were carried out in one-step without any sample preparation. after optimization of temperature, extraction time a...

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