Image Sensing Technology. A Smart Image Sensor with Quad-Tree Scan.
نویسندگان
چکیده
منابع مشابه
Quad Tree Structures for Image Compression Applications
Abstract -Traditionally, lossy compression schemes have focused on compressing data at fixed bit rates to either communicate information over limited bandwidth communication channels, or to store information in a fixed-size storage media. In this paper we describe a class of lossy algorithms that is capable of compressing image data over a wide range of rates so that quick browsing of large amo...
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Fractal Image compression uses different fractals is lossy compression technique. Textures and natural images are compressed & decompressed using fractal image compression. As there is repeation in the other parts of the same image. In proposed methodology, complete image is converted into mathematical equations. These equations are used to convert images into fractal codes. After reception the...
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In this paper, the possibility of using fractal compression on medical images is investigated. The utilized fractal method takes advantage of quad-tree partitioning and the results of fractal compression on x-ray images for different range size are presented. For making tradeoff between computational cost and compression accuracy, image segmentation is used and different range size assigned for...
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The watermark bit assignment controls the watermark embedding strength and the bit plane selection. Quad-tree decomposition is used as analysis technique which involves subdividing of image into blocks that are more homogeneous in comparison to the image itself. This technique gives the information about the structure of the image. This is the first step in adaptive compression algorithms. For ...
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Image compression plays an important role in our day to day activities. Image compression is the process of reducing the amount of data required to represent given quantity of information in image to reduce storage requirements and many other reasons. In a computer image is represented as an array of numbers, integers and is known as digital image. Image array is mainly of two dimensional and t...
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ژورنال
عنوان ژورنال: The Journal of the Institute of Image Information and Television Engineers
سال: 2001
ISSN: 1881-6908,1342-6907
DOI: 10.3169/itej.55.287