The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Local stereo matching methods are still used widely because they are fast and simple. But the accuracy of local methods is much poorer than the global methods. They usually achieve accuracy at the expense of speed. Simple local methods are fast, but exhibit systematic errors. In this paper we propose an improved method based on support-weight approach, which can enhance the matching efficiency and...
This paper proposed a system which is using smart phone to develop with a gyroscope sensor license plate location. For another part, it is also designed a flow chart of conditional iteration binarization, FCCIB. The way effectively improves the locating correct rate before the license plate location processing. The problem is that the binarization stage is influenced by environmental factors. That's...
In this paper, a fast and accurate algorithm to distinguish between open and closed eye is proposed. In the proposed approach, we use a fast and accurate preprocessing stage based on Haar features to detect the face area, color and intensity mapping to extract the eye candidate areas, and some simple geometrical constraints for final approval of the eye area. Then, for detecting the eye state with...
Segmentation becomes a difficult task if the objects are not homogeneous and have overlapping characteristics. The Graph Cuts methods combined with Gaussian Mixture Model (GMM) for initialization label has been adopted to detect cattle object in an image with complex background. The RGB colors and Gray Level Co-occurrence Matrix (GLCM) textures are used as the features set. This method can robustly...
This paper proposes a detection method for electronic parts from electronic board images using HSV color format. In this study, we can pick out the electronic parts images by dividing the fixed section. If the parts have a low level of saturation, we detect only two colors that as black and white. To use this method, the detection rate of other colors is improved. It is possible to detect the region...
We present a new formulation to automatically solve jigsaw puzzles considering only the information contained on the image. Our formulation maps the problem of solving a jigsaw puzzle to the maximization of a constrained quadratic function that can be solved by a numerical method. The proposed method is deterministic and it can handle arbitrary rectangular pieces. We tested the validity of the method...
This paper develops a novel method to automatically categorize different animation genres in a video database made for children, this is the first such research done in animation genre categorization. The method is based on statistically modeling the temporal texture attributes of the video sequence. The features are extracted from gray-level co-occurrence matrices and a hidden Markov models (HMM)...
In this paper we propose a method to detect salient object in still image and non-slow motion background video. The key technique is measuring pixel blurriness. Generally speaking, salient object was taken in focus, pixels within salient object should be sharper than those within background. In the first step image intensity is extracted, and then four different-size average filters are applied to...
Human-computers interaction is a field of study that has been discussed from the beginning of computers technology. The main purpose of it is to make a more comfortable ways to interact with the computers that consist of accuracy, mobility, and speed. A new intuitive and revolutionary way to interact with computer is the use of webcam as a keyboard as keyboard is the most fast and accurate input device...
In order to realize accurate colorimetric characterization for a output device, several different correction algorithm models were evaluated. There are three Neugebauer equation correction methods in common use, namely: The dot gain correction, the Yule-Nielsen exponential correction and the Cellular correction. This article analyzes these correction methods of Neugebauer equation, and put forward...
Interpolation methods are very important in computational aeroelasticity in both the closely and loosely coupled analysis method. In this paper, the characteristics of thin plate splines (TPS), multiquadrics surface spline methods(MQ) and kriging method were first analyzed for interface data interpolation in computational aeroelasticity. Through the analysis of different methods, a hybrid interpolation...
This paper presents a novel feature point based non-rigid registration of preoperative MRI with resected intra-operative MRI (iMRI) to compensate for brain shift during tumor resection. The registration is formulated as a three variables (Correspondence, Deformation Field and Resection Region) functional minimization problem. We solve this problem by means of a nested Expectation and Maximization...
How to rapidly capture the wanted video data at the sea video database is the currently hot research topic. This paper put forward to an algorithm based on artificial intelligence for video retrieval; the results of experiment had been given and compared with key frame-based video retrieval (KFVR). The retrieval precision of our algorithm is higher than KFVR about 4%.
A series of research tasks were carried out to build a model of the printers output. First, various correction methods of Neugebauer equation were analyzed, and put forward a new correction method that is using exponential correction method with considering the impact of dot gain, this model was selected as the forward model and its accuracy was tested throughout the colorant space. It was found to...
We have investigated a technique for recognising faces invariant of facial expressions. We apply multi-linear tensor algebra, which subsumes linear algebra, to analyse and recognise 3D face surfaces. This potent framework possesses a remarkable ability to deal with the shortcomings of principle component analysis in less constrained situations. A set of vector spaces can be used to represent the variation...
This paper presents a new algorithm for estimation of noise (i.e., level of noise) in both gray-scale and color images (GSI, CI). The new technique is called median-absolute deviation (MAD). This technique does require an explicit estimation of the noise level or the signal to noise ratio (SNR), which is usually needed in most of the popular enhancement methods. Performance of the proposed method...
Nowadays, with the development of high quality graphical softwares, almost every presentation, in addition to text, contains some kind of images too. According to the presentation needs, different kinds of images are used by the presenters but different kinds of images needs different type of treatments which evolve the image categorization research. In our work we try to categorize images into two...
Rapid prototyping allows for evaluation of design product in a short period of time. Designers or CEOs may perceive the size and appearance of the product by touching the automatically constructed physical objects produced through rapid prototyping. However, it is usually impossible to change its color, texture, and user interface. In this paper, we introduce 'Augmented Reality based Re-formable Mock-up',...
In the following paper we present a complete analytical model that predicts the band-gap (Eg) of single-walled carbon nanotubes (SWCNTs) directly from their diameter (d) and chiral angle (thetas). The proposed analytical model is based on two mathematical expressions that have been derived by curve-fitting the outcome generated from the third-nearest-neighbor tight-binding (TB) method in conjunction...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.