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Usage of multi-step segmentation for near-duplicate image recognition is investigated. The search pattern based on the rank distributions of the brightness clusters cardinality is suggested. Experimental results on the near-duplicate image recognition based on the application of the suggested search pattern are given. It is shown that the use of a multi-step segmentation and rank distributions of...
This paper presents an agile radiating matrix antenna which is formed by an association of several and identical special radiating elements called ‘pixels’. Those pixels have special properties concerning its radiating apertures. The matrix antenna working principle is based on the equivalent radiating surface approach and not on the classical array approach. The aim of this paper is to show the matrix...
A single loop low tracking jitter pixel clock generator is demonstrated in 28nm CMOS process. The proposed architecture only consists of a conventional single loop wide bandwidth fractional-N PLL and two synchronization skills which suppress the tracking jitter and bring out the delay control function like a DLL. When a 250MHz pixel clock is generated and synchronized with a 10kHz HSYNC, the measured...
This paper presents a method for depth measurement based on Speeded Up Robust Features (SURF) and pixel number variation of CCD Images. A single camera is used to capture two images in different photographing distances, where features in the images are extracted and matched by SURF. To remove false matching points, an Identifying point correspondences by Correspondence Function (ICF) method is adopted...
In this paper, we studied Solar Photovoltaic (SPV) array output power as a function of dynamic illumination intensity pattern. A fine resolution pixel level analysis of 2D dynamic illumination intensity pattern is mapped to the module architecture. Images taken by high resolution cameras at regular intervals will help track the iso-insolation contours by mapping pixel pattern and estimate the illumination...
This paper demonstrates an advanced 1.1um pixel backside illuminated CMOS image sensor with a 3D stacked architecture. The carrier wafer in conventional BSI is replaced by ASIC wafer, which contains a part of periphery circuit and is connected to the sensor wafer through bonding technology. With proper layout design and process improvement, the impact of 3D connection (Through Via, TV) on the sensor...
According to convenience and accuracy problem of clinical wound area measurement method, the wound area measurement software is designed based on the Android. The wound image is photographed by the Android device and is cut out and converted to the grayscale image and the binary image. The invalid area is eliminated and the valid area is extracted. The pixels of wound area are counted. According to...
Steganography is the science of hiding secret information in another unsuspicious data. Generally, a steganographic secret message could be a widely useful multimedia: as a picture, an audio file, a video file or a message in clear text - the covertext. The most recent steganography techniques tend to hide a secret message in digital images. We propose and analyze experimentally a blind steganography...
An important development in digital X-ray imaging systems is a pulse amplitude measurement in each pixel in real-time. A single readout pixel usually has the dimensions of 100 µm × 100 µm or lower, and as it has to accommodate the analog front-end amplifier and digital back-end readout logic, the area available for an ADC is extremely low. Thus, in the design of the ADC the most emphasis has to be...
Cryptography is basically securing the data during the communication between different systems. To provide the security of data during communication in cryptography we together require the Algorithm and Key. The confidentiality and integrity of the data during communication depends partially on algorithm and partially on key. Due to human memorizability the size of key in cryptography is limited....
Image fusion algorithm based on wavelet transform was proposed in this paper to improve quality of image and meet the needs of applications of vision. Because of the high frequency component and low frequency component representing different information of an image, two or more images to be fused should be firstly decomposed into sub-images with different frequency. Then, the different rules of fusion...
This paper addresses questions surrounding the placement of characters and the conversion point in stereoscopic film scenes based on proxemics as described by E.T. Hall.
Next generation pixelated radiation image detector requires intelligent data processing within each pixel. Since the number of transistors implemented in the pixel area is limited, 3D stacking is indispensable technology in this kind of detector. We have fabricated a stacked SOI radiation image sensor by using μ-bump technology of 5 μm pitch. DC characteristics of transistors located in lower and...
In the dams monitoring procedure there are several important aspects that must be taken into consideration when the specialists must give a detail report regarding the construction behavior during the operation. One of the above physical phenomena that must be followed is the inclination of the concrete blocks during the freezing / unfreezing intervals or maximal / minimal loads (from the lake's water...
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...
Possibility of application of a recurrent neural network for segmentation of full-color images based on a clustering of color components is considered. Questions of multi-step segmentation of such images in different color models are discussed. Experimental results on multi-step segmentation of images are presented in the RGB and YUV color spaces.
We propose and analyze experimentally a blind steganography method based on specific attributes of two dimensional discrete wavelet transform set by Haar mother wavelet. Steganography is the science that deals with hiding a secret message in unsuspicious cover media. The most recent steganographic techniques tend to hide a secret message in digital images. The blind steganography methods do not require...
In this paper, we present a theoretical study on the interests of a 1D (one-dimensional) EBG Matrix versus the patch array, in terms of mutual coupling and grating lobes. To prove this interest, a comparison is made between these two antenna systems. The aim of this paper is to offer new antenna systems to the market for specific applications.
Ear Biometrics identification is rapidly growing in current biometric industry because of its unique features, stableness and passive of human involvement. Ear biometric system better suits for automatic identification of individual or human. We propose a pixel based feature identification approach for Ear biometric model.
This paper presents the readout circuit based on Direct Injection (DI) and Capacitive Transimpedance Amplifier (CTIA). The hybrid type of CTIA and DI was adopted as the pixel circuit's design in this paper. The two different structures were combined into unit pixels, and each pixel has two modes of readout. Furthermore, the chip was produced with TSMC 2P4M 5V technology, and the array size is 10×8...
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