image sensor 2019


A digital image sensor is an integrate circuit used for measuring light intensity. Image sensors have become ubiquitous over the last decade, finding their way into phones, computers, digital cameras, and automobiles. Film has been made all but obsolete due to the advances in image sensor technology. The two key image sensor technologies are charge-coupled devices (CCD) and complementary metal-oxide-semiconductor (CMOS). Although they were both created a roughly the same time, CCD images dominated the market for many years due to superior image quality. As fabrication technology improved, CMOS imagers eventually became a viable option. Today, CMOS imagers dominate the low-cost consumer electronics space, whereas CCDs still provide exceptional image quality but at the cost of speed. There are several important image sensor specifications to consider. The number of pixels captured is typically given in megapixels. Pixel counts can range dramatically from sensor to sensor. Pixel size refers to the area on the sensor dedicated to each pixel. Larger pixel areas can receive more photons and therefore typically provide cleaner, less noisy images. Note that for a given sensor size, increasing the pixel count decreases pixel area and vice versa. Another important aspect of image sensors is how they capture color information: a single-chip sensor uses a Bayer filter to capture only red, green, or blue at each pixel. A three-chip camera captures RGB at every pixel

REMOTE SENSOR NETWORKS FOR PREDICTION OF CHILLI CROP DISEASES USING INFRARED IMAGE PROCESSING TECHNIQUES
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Chili crop is very essential to the Indian economy since it is the largest producer and consumer of chili. Since the crop is easily affected by environmental conditions like change in temperature, humidity and easily susceptible to diseases caused by bacteria or pests, the

TWO INSTANCES OF IMAGE SUPER-RESOLUTION USING SENSOR RASTER SCANNING AND DECONVOLUTION
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Super-resolution reconstructs a high-resolution image from one or more low-resolution recorded images. It uses a variety of hardware techniques, such as sensor raster scanning, or software techniques, such as interpolation, iterative backprojection, and the regularized

Memory Modules-Trends in CMOS Image Sensor Technology and Design of DRAM
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This paper presents the many-core architecture, with hundreds to thousands of small cores, to deliver unprecedented compute performance in an affordable power envelope. We discuss fine grain power management, memory bandwidth, on die networks, and system

6-DoF Sensor Design for Electromagnetic Tracking in Image -Guided Interventions⋆
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1 Purpose Electromagnetic tracking is the gold standard for tracking the position and orientation of instruments in the clinical working volume where there is no line of sight to the target. In the absence of distortion, position and orientation accuracy of 1 mm and 1

Wireless Sensor Network Image Compression Based on Clustering Swarm Optimization
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Multimedia data compression is a challenging job for compression technique, due to the possibility of loss of data and required large amount of storage place. The minimization of storage place and proper transmission of these data needed compression. Now in these

A Study of Wireless Sensor Image Compression Scheme Method Using Clustering Technique
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Multimedia data compression is a challenging job for compression technique, due to the possibility of loss of data and required large amount of storage place. The minimization of storage place and proper transmission of these data needed compression. Now in these



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