نتایج جستجو برای: sift
تعداد نتایج: 3325 فیلتر نتایج به سال:
To aid visitors of art centers in automatically identifying an object of interest, a computer vision algorithm known as SIFT has been implemented using MATLAB. Salient aspects of the algorithm have been discussed in light of image recognition applications. Test methods to validate the algorithm have been detailed out. Performance improvement for SIFT also has been proposed.
abstract introduction: genetic variations in the gene encoding endothelial nitric oxide synthase (enos) enzyme affect the susceptibility to cardiovascular disease. identification of the way these changes affect enos structure and function in laboratory conditions is difficult and time-consuming. thus, it seems essential to perform bioinformatics studies prior to laboratory studies to ...
In view of the problems long matching time and high-dimension high-matching rate errors traditional scale-invariant feature transformation (SIFT) descriptors, this paper proposes an improved SIFT algorithm with added stability factor for image matching. First all, was increased during construction scale space to eliminate points unstable points, speed up processing reduce dimension amount calcu...
We report on our results in the TRECVID 2011 Multimedia Event Detection (MED) and Semantic Indexing (SIN) tasks. Generally, both of these tasks consist of three main steps: extracting features, training detectors and fusing. In the feature extraction part, we extracted many low-level features, high-level features and text features. We used the Spatial-Pyramid Matching technique to represent the...
A new fingerprint parameterization for liveness detection based on quality measures is presented. The novel feature set is used in a complete liveness detection system and tested on the development set of the LivDET competition, comprising over 4,500 real and fake images acquired with three different optical sensors. The proposed solution proves to be robust to the multi-sensor scenario, and pr...
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