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Previous works on MEMS actuated Fabry-Perot interferometer (FPI) highlighted promising results for flexible display applications. Three primary color pixels have indeed been obtained using both photolithography and Roll-to-Roll printing process with satisfying color purity and transmittance. However both of these processes are expensive and time-consuming for preparing master micropatterns. For these...
A low voltage electrostatically actuated 90° turning flap is modeled and fabricated. The application is a new kind reflective, low-power, MEMS-based display with high contrast and reflectance. The system consists of a poly-silicon flap fabricated onto a silicon substrate with a transparent counter electrode on glass and a device layer of a silicon-on-insulator (SOI) wafer as spacer in between them...
A new display technology has been developed that overcomes the losses in conventional liquid crystal displays (LCDs). At the heart of this new class of displays is a digital microshutter (DMS™) that eliminates the need for a polarizer that is required in LCDs. The DMS™ also has a response time of approximately 20 times faster than that of an LCD pixel, making it possible to produce a bright field...
The paper is reviewing the new trends of the image sensing, the Super CCDs and the Backlit CMOS. One proposes a new HDR fuzzy-interpolative algorithm that can extend the dynamic range of a still Backlit CMOS image in the Super CCD SR manner: the fusion of two images, the first one with a normal exposure and the other underexposed.
In the paper, we formulate a new energy function followed by the use of graph cuts to refine the disparity map which takes segment as node. Firstly, the robust disparity plane fitting is modeled and the method of Singular Value Decomposition (SVD) is used to solve least square. In order to ensure reliable pixel sets for the segment, we filter out outliers through three main rules, namely; cross-checking,...
Mammography is the most effective method for the early diagnosis and treatment of breast Cancer diseases. However, data sets collected by image sensors are generally contaminated by noise. This ensures the need for image enhancement to aid interpretation. This paper introduces an efficient enhancement algorithm of digital mammograms based on wavelet analysis and modified mathematical morphology. In...
Iris Recognition has emerged as one of the best biometric authentication techniques in recent years. However, a significant drawback of this biometric modality is the constrained environment in which the user is enrolled and recognized. It typically requires the user to be very cooperative for good quality images to be captured. If this limitation could be effectively addressed, it would be possible...
The new image encryption algorithm based on Logistic chaotic map is designed. First, after two initial values of Logistic chaotic map are pretreated, two of the modified initial values are obtained based on which two chaotic sequences are generated. Next, taking the first n-gray value of the original image in turn, pixel gray value (n is odd and even) is respectively encrypted by the chaotic sequence...
Diabetic retinopathy (DR) is the damage to the eye's retina that occurs with long-term diabetes, which can eventually lead to blindness. Screening programs for DR are being introduced, however, an important prerequisite for automation is the accurate localization of the main anatomical features in the image, notably the optic disc (OD) and the macula. A series of interesting algorithms have been proposed...
Image inpainting is a technique to automatically recover the damaged or missing regions in images. This paper presents a simple but fast approach for recovering the damaged regions of digital images. It uses a unique idea of dynamic weighted kernels. It proposes kernels of different sizes and weights to fill in the damaged regions with different width. The proposed technique has been tested for quality...
For the robot vision system in apple harvesting robot, a new image segmentation method based on entropy clustering is proposed in HSI color space. Firstly, noise was wiped off by using weighted algorithm of median filtering in HSI color space instead of traditional algorithm in RGB model; secondly, Hue and Saturation components were extracted to do entropy clustering with their independence with Intensity,...
In order to solve the faults in usual detection of droplet distribution and motion in pesticide application and agricultural spraying field, a new method is given for the analysis of droplets characteristics and motion with PDIA (Particle/Droplet Image Analysis) and digital image processing technique. The diode laser is an illumination system that provides pulses of infrared laser light with variable...
Along with the development of technology and the advance of social productivity, the technology of TV and computer have been mostly method of modern information social spread and dealing with information. Video image superposition is one of the multimedia technology application fields; it is the associative production of the TV technology and computer technology. The technology of drawing beeline...
Fractal image compression is a relatively recent image compression method. Its basic idea is to represent images as a fixed point of a contractive Iterated Function System. Spiral Architecture is a novel image structure on which images are displayed as a collection of hexagonal pixels. But till date there are no available image capture or display devices to support this structure. Hence in order to...
Based on the binary image, the thesis proposes a suit of algorithm for the license plate intelligent recognition system serving the expressway toll collection system. Firstly, the algorithm of first difference combined with the method of determining the threshold of binarization via accumulating pixel spots is used in pre-processing. Secondly, taking advantage of the horizontal texture characteristic...
The information in medical imaging is structured on multiple layers: semantic and numerical. Several algorithms for shape and color detection which can be used for numerical analysis are presented in this paper. Semantic information can be extracted from numerical information using fuzzyfication. For a correct image interpretation and a diagnosis formulation several of the objects features (shape,...
In this paper we are using Devanagari script OCR for recognition. The handwritten data set is created by us and for printed characters we have used ISM font. Here we are using gradient and curvature based feature extraction method. We have compared Nearest Neighbor, K-Nearest Neighbor, Euclidian Distance-based K-NN, Cosine Similarity -based K-NN, Condensed Nearest Neighbor, Reduced Nearest neighbor,...
As Contourlet transform can give an asymptotic representation of edges and contours in image by virtue of its characteristics of multidirectional and flexible, it is introduced into the quality assessment of fused image. A new method (CSSIM) for image fusion quality assessment based on Contourlet and structural similarity of images is put forward in this paper. We introduce distortion channel to simulate...
A FED driving circuit system with adjustable parameters, resources optimizing, voltage output with 420 V, giving support to 640×3×480 resolution is presented. In the circuit system, the following design methode was introduced: double buffer, internal dual-port distributed RAM, and low-voltage differential signaling (LVDS) interface.
A luminance-based method was proposed for the emission uniformity characterization of the flat plane cold cathode. A research of relating to new parameters redefining, testing and evaluating was introduced. A comparison was also taken in this paper with the current method.
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