K. Natarajan Assistant Professor, Department of Computer Science, AVC College(Autonomous), Mannampandal, Tamilnadu, India. ---------------------------------------------------------------------***--------------------------------------------------------------------Abstract Image enhancement is one of the preprocessing step in various computer vision applications. It is the process of improving th...

Today’s information retrieval (IR) techniques are mostly text-based. As a consequence, some types of information are beyond the reach of text-based IR systems, which fail in situations where textual information can not be easily accessed, e.g. textual information in biomedical images and figures. To tackle such situations, we propose to augment IR systems with the ability to perform optical cha...

In this paper, the image processing method has been used to recognize traffic sign symbol from the static image. And then, we have to recognize traffic sign symbol by using single dimension principal component analysis (SDPCA). We have focused on traffic sign symbol of triangular shapes. Images are preprocessed with several image preprocessing techniques, such as threshold techniques, Gaussian ...

Stereo image is frequently used as preprocessing of stereo vision techniques. Although stereo image rectification is performed using look-up tables which are computed in advance, it takes a long time to do rectification transformation on mobile platforms. Thus stereo image rectification process can be burdensome in stereo vision applications on mobile platforms. This paper presents an approach ...

Retrieving object phase from the optical fringe pattern is a critical task in quantitative imaging and often requires appropriate image preprocessing (background noise minimization), especially when retrieving single-shot image. In this article, for first time, we propose to adapt 2D Fast Iterative Filtering (FIF) method decomposition develop novel version of FIF called (fpFIF2), that tailored ...

1 • 26191'916_922,sep "mbe"987j. Abstract. A new class of charge-coupled devices called charge-coup led­ computing devices is described. These analog circuits perform arith­ Columbia University Department of Electrical Engineering metic functions such as addition, subtraction, and magnitude com­ parison in the charge domain. The circuits are compact and are designed 1312 Seeley W. Mudd Building...

In this paper, we investigate the effects that different preprocessing techniques have on the performance of features extracted from Haralick’s co-occurrence matrix, one of the best knownmethods for analyzing image texture. In addition, we compare and combine different strategies for extracting descriptors from the cooccurrence matrix. We propose an ensemble of different preprocessing methods, ...

Since all the image data need in this research were collected from the highly modified AS&E 101ZZ system, it is important to give an overview to this scanning hardware. Section 3.1 gives a system hardware overview. Section 3.2 discusses issues regarding xray detectors and image preprocessing. Section 3.3 discusses the relationship between the x-ray signal intensity and the image gray level. Sec...

The development of computer and network technologies, image with mixed text, graphics and natural picture are seen everywhere, such as captured screen, web page, scanned electronic documents, slides, posters, compound images applications of computer screen image transmission. It is used to reduce the amount of data required to present the digital image and to improve the appearance of an image ...