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Presented paper explains general purpose approach to the parallel pixel processing on GPU. It presents essential dataset structuring, correct type assignment and kernel configuration for CUDA application interface. Paper also explains data movement and optimal computation saturation. Transfers are also analyzed in correlation with the computation especially for the embarrassingly parallel problem...
For secure data transmission over internet, it is important to transfer data in high security and high confidentiality, information security is the most important issue of data communication in networks and internet. To secure transferred information from intruders, it is important to convert the information into cryptic format. Different methods used to ensure data security and confidentiality during...
This paper deals with a method of clipping a line segment into a circular window. Its unlike other algorithms, instead of dividing region into segments and generating the corresponding region codes, yields results based their parametric equations which not only yields precise result for each pixel but also compute faster. Its an algorithm that can be embedded in many circular displays in order to...
With the advent of numerous remote sensing sensors available for the researcher, the fusion of digital image data has become a imperative tool for classifying remote sensing image and evaluation too. Remote sensing image fusion not only improves the spatial resolution of the original multispectral image, but also improves the spectral quality of merged product. Quantitative and qualitative digital...
Civil and military applications increasingly require agile antenna devices which respond to wireless telecommunications, radars and electronic warfare requirements. The objective in this paper is to present the design of a new agile antenna system called EBG Matrix antenna which must be controlled by a synthesis algorithm; this algorithm uses in its loop an analysis procedure which evaluates the radiation...
The algorithm of detail holding adaptive median filter is been bringed forward. Using the sub-filteration window with directivity and setting the filter's sensitivity by threshold, the differentials of pixel gradation and median is been caculated and the consistency of pixels in window are been judged. The shape and scale of window based on the condition of noise influence are been dynamics adjusted...
A new stereo vision system is presented, which is based on a low-power CMOS binary vision sensor, with embedded spatial contrast extraction and output data compression, through positional data coding. A novel disparity algorithm adapted to the output of the sensors has been developed. The algorithm has been simulated and tested on a real application. The presented system is targeted towards event-based...
Recognizing the hand written document is one of the biggest challenges because of the variations in the handwritten text. The basic idea of this novel method is "divide and conquer". The algorithm recognizes the image in form of predefined glyphs. Based on the arrangement of the recognized glyphs, the exact character in the image can be recognized by comparing with the predefined glyphs...
In this paper, we proposed a swift impulse noise suppresser based on adaptive growth algorithm (AGA). It is mainly composed of three parts: signal detector, adaptive growth and indispensable reestablishment and correction. Firstly, we designed a signal detector to detect the real signal pixels and calculated signal density according to the analysis of the characteristic of impulse noise and the distribution...
Forest type identification is one of most important contents of forest inventory. K nearest-neighbour algorithm has already proven their use in forest mapping. However, as the remote sensing data was large scale, the efficiency of processing based on KNN decreased seriously. Therefore, the study implemented a tool which could have the feature of fast processing multi-spectral data based on KNN. For...
We discuss FPGA implementations of object (such as face) detectors in video streams using the accurate Haar-feature based algorithm. Rather than creating one implementation for one FPGA, we develop a method to generate a series of implementations that have different size and performance to target different FPGA devices. The automatic generation was enabled by custom design space exploration on a particular...
Digital halftoning is a crucial technique used in digital printers to convert a continuous-tone image into a pattern of black and white dots. Halftoning is used since printers have a limited availability of inks and cannot reproduce all the color intensities in a continuous image. Error Diffusion is an algorithm in halftoning that iteratively quantizes pixels in a neighborhood dependent fashion. This...
Motion estimation using one-bit transform and two-bit transform reduces the complexity for computation of matching error; however, the peak signal-to-noise ratio (PSNR) is degraded. Modified 1BT (M1BT) and modified 2BT (M2BT) have been proposed in [5,6] to compensate degraded PSNR by adding conditional local search. However, these algorithms require many additional search points in fast moving sequences...
This paper proposes an efficient scheme for detecting different object classes in an imaging sensor network. The object detection system detects all the instances of objects (for which the classifier was trained) in the given image, regardless of their scales and locations. Therefore, the image can be thus seen as a set of sub-windows that are to be evaluated by the detector. The detector selects...
A parallel interior orientation method based on lookup table is proposed to deal with lens distortion and interior orientation issues of UAV (Unmanned Aerial Vehicle) images. Firstly, a distortion correction and interior orientation algorithm is proposed for UAV low altitude remote sensing images. Secondly, a mapping lookup table algorithm based on distortion correction model for interior orientation...
A new segmentation method is proposed for high resolution remote sensing image. In the high-resolution remote sensing image, there is mass of data to be processed, and land objects exhibits strongly hierarchical and multiscale characters. In order to overcome the disadvantages of pixel-based hierarchical MRF model directly used on high-resolution remote sensed images, a hierarchically multiscale object-oriented...
This paper proposes an new algrithem framework for video based vehicle âtailgate' behavior detection in urban road junction. Based on the road traffic regualtion about the illegal parking behavior definition, the author proposes traffic lights signal monitor, vehicle tracking and road conjestion detection algrithems in the real time video analyse. The measured parameters including vehicles' trojactory,...
Nonnegative matrix factorization (NMF), which has shown success in blind source separation, has also been applied to hyperspectral data unmixing. Many constraints have been introduced to render better estimates. However, most algorithms in this respect have not explored the inner characteristics of the spectrum and the formation of the spectrum itself. In this paper a novel sparisity constrained nonnegative...
In image composition, the inconsistent illumination of the source images is one of the major problems for seamless stitching of separated patches. The Poisson image editing is a sound technique for seamless image composition. In this paper, we have generalized and improved this technique and applied it onto solving the illumination discontinuity problem for facial image composition. Toward stitched...
This paper presents a novel fast algorithm, which consists of two parts, namely, Choquet fuzzy integral for generation of a pseudo-random keystream, and a self-adaptive masking process for increasing shuffling pixels of the image. The first part, which is the major core of the encryption algorithm, is a pseudo-random keystream generator based on the Choquet fuzzy integral. A 128-bit key is used for...
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