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SIFT flow adopts SIFT descriptor to find correspondence between two images. However, SIFT flow is not robust to scale and rotation for dense corresponding matching. In this paper, we propose moment-based dense correspondence matching which is robust to image variation. First, we apply Zernike moments to SIFT descriptor, i.e. Moments of Gradients (MoG). Then, we combine SIFT flow with MoG for dense...
Scene text extraction is always a challenging task owing to its usual disturbing factors such as complex image backgrounds and various text behaviors (sizes, colors, styles and alignments). This paper proposes a scene text extraction approach based on the novel concept of ‘symmetrical edge-point pairs’ (‘point-pair’), which is adopted to describe the sizes, directions and brightness information of...
This paper proposes the method to adjust brightness information by applying CIE L∗a∗b∗ color space and adaptive neuro-fuzzy inference system. The image which is already captured by vision sensor should be adjusted brightness to recognize objects in an image. In case of proper intensity of lights, the clarity of an image is good to recognize objects. However, in case of improper intensity of lights,...
Multi-Scale Retinex (MSR) algorithm enhances images that are taken in nonlinear lighting conditions. In this paper, we propose an automated approach for image enhancement using MSR and Flower Pollination Algorithm (FPA) to select the optimal weights to the different scales of Gaussian filters from the desired image for MSR. The experiments are carried out using blood cell microscopic imaging to investigate...
For the purpose of saving energy, aiming at improving the weakness of traditional lighting system, such as wasting energy and poor flexibility, this paper designs an intelligent home lighting control system with STM32 as the control core and Wi-Fi and ZigBee as the communication mode. The system, through the three-way pulse width modulation(PWM) to achieve the tricolor LED light intensity and color...
In this paper a modified fuzzy approach is introduced to diagnose the skin damages in dermoscopy images. In this method, firstly the level of brightness on images is arranged by colored contrast modification; afterward, the edge of area is achieved by applying FLICM algorithm, which is modified by concept of complex Gaussian model approximation and FCM. Efficiency of this method is evaluated on real...
The problem of automation of the product traceability processes within the technological process has now become of major importance. The most common traceability method is based on optical identification implemented by various markings application to the product surface. Such markings can contain a wide variety of information that allows one to determine the parameters of the raw materials, the manufacturer,...
This paper presents the architecture and hardware of the developed real time road signs recognition system. Image processing and recognition methods ensuring efficiency of real time road signs recognition system, are offered.
In this paper, the authors present results of subjective experiments undertaken at BBC R&D. The results show that it is possible to simply adjust the system gamma (γ) of a Hybrid Log-Gamma High Dynamic Range (HDR) television display to perceptually match images shown on a screen in a non-reference viewing environment to those shown on the same screen in a reference viewing environment.
We make an effect evaluation method of bum treatment based on image processing for quantitative evaluation of the treatment progress. We first converted the color space of image from RGB color space to L∗a∗b∗ color space and divided image using SLIC Super pixel algorithm. Subsequently, we separate a transplanted skin and burned skin using support vector machine (SVM). As a result, in our proposed...
Color estimation of illuminants has been applied to various applications such as the correction of white balance and color normalization for machine vision. The color estimation from a single image, however, is still challenging because each pixel value depends on three components: illumination, reflection, and characteristic of an image sensor, whose decomposition is a hard inverse problem. This...
Monitoring techniques are a key technology for examining conditions in various scenarios (e.g., structural and weather conditions and disasters). The appropriate extraction of the features of these scenarios from observation data is important in understanding them. This study proposes a monitoring technique that allows sound environments to be expressed as a sound pattern. To this end, the concept...
In this article we analyze the prediction of image interestingness, a domain that is gaining importance in the fields such as recommendation systems, social media and advertising. We investigate the contribution of early and late fusion techniques, while using a set of image descriptors and analyze the best combinations that predict interestingness. Experimental validation is carried out on the MediaEval...
The rapid growth of urban image scale and its resulting high cost of data storage have become the factors which will restrict the development of the smart urban security system. Image stitching technology can synthesize many smallview images into a picture with large view and high quality which helps to smart city overall planning and regulation. Also, image stitching removes the repetitive, redundant...
Feedback plays an important role in assisting users to better understand their energy consumption behaviour. This is particularly true when users want to change their behaviour in order to reduce their energy consumption, and to manage their usage more effectively so as to avoid putting unnecessary load on energy providers. This paper presents the time-tone visualization, which aims to assist users...
The intent of this paper is to propose the method of dual-aspect radiometric and geometric terrain correction to solve the two problems, radiometric variation and radiometric information loss. Firstly, the radiometric terrain correction method which considered gamma naught based image plane as measure of backscattering coefficient, which can correct radiometric variation of PolSAR images at the facing...
OLED power management on mobile devices is very challenging due to the dynamic nature of human-screen interaction. This paper presents the design, algorithms, and implementation of a lightweight mobile app called ShiftMask, which allows the user to dynamically shift OLED power to the portion of interest, while dimming the remainder of the screen based on visual acuity. To adapt to the user's focus...
Auditing of certificates and bills images is pervasive in ERP systems. However, the scanned or camera-captured images sending to an ERP system are not always of good quality. In order to automate the auditing of certificates and bills, and to alleviate the low recognition rate caused by the low quality image in all kinds of certificates and bills automatic analysis and processing system, this paper...
A method for the restoration of multicomponent images that were distorted by applicative disturbances is proposed. A particular case of multicomponent images is studied — the RGB images each color component of which is a g-bit digital half-tone image (DHTI). The method is based on the representation of g-bit DHTIs as a set of g-bit binary images and the use of probabilistic mathematical apparatus...
the Active Matrix Organic Light Emitting Device (AMOLED) currently apply four sub-pixels architecture, which include a red (R), green (G), blue (B) and additional (X) sub-pixel, which has high luminous efficiency to achieve a power efficient display. Therefore, a specified algorithm would be requested to indicate which pair of sub-pixels is lighting up. In this work, we propose an available method...
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