Database retrieval: the use of combined dissimilarities

نویسنده

  • Carmen Lai
چکیده

In image retrieval systems, the key point is the description of the set of images. In this paper we show that a representation using a cloud of points offers a flexible description but suffers from class overlap. We propose a novel approach for describing clouds of points based on the support vector data description (SVDD). We show that combining image descriptions using dissimilarities improves the retrieval precision. Further we propose a method to select an efficient and robust subset of classifiers. We investigate the performance of the proposed retrieval technique on a database of 368 images.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

A Novel Method for Content Base Image Retrieval Using Combination of Local and Global Features

Content-based image retrieval (CBIR) has been an active research topic in the last decade. In this paper we proposed an image retrieval method using global and local features. Firstly, for local features extraction, SURF algorithm produces a set of interest points for each image and a set of 64-dimensional descriptors for each interest points and then to use Bag of Visual Words model, a cluster...

متن کامل

A Modified Grasshopper Optimization Algorithm Combined with CNN for Content Based Image Retrieval

Nowadays, with huge progress in digital imaging, new image processing methods are needed to manage digital images stored on disks. Image retrieval has been one of the most challengeable fields in digital image processing which means searching in a big database in order to represent similar images to the query image. Although many efficient researches have been performed for this topic so far, t...

متن کامل

A Novel Method for Content Base Image Retrieval Using Combination of Local and Global Features

Content-based image retrieval (CBIR) has been an active research topic in the last decade. In this paper we proposed an image retrieval method using global and local features. Firstly, for local features extraction, SURF algorithm produces a set of interest points for each image and a set of 64-dimensional descriptors for each interest points and then to use Bag of Visual Words model, a cluster...

متن کامل

The choice of vantage objects for image retrieval

Suppose that we have a matrix of dissimilarities between n images of a database. For a new image, we would like to select the most similar image of our database. Because it may be too expensive to compute the dissimilarities for the new object to all images of our database, we want to 5nd p n “vantage objects” (Pattern Recognition 35 (2002) 69) from our database in order to select a matching im...

متن کامل

Impact of Controlled and Free Language Use in Retrieving Articles from the ProQuest and Science Direct Databases

Abstract Introduction: The growth and expansion of the Internet has changed the way information is accessed and many facilities have been created on the Web to facilitate and expedite information locating. Objective: To identify the impact of keyword documentation using the medical thesaurus on the retrieval of articles from Proquest and Science Direct databases. Materials and Methods:The pr...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2003