Pseudo-color Processing Research Articles

Plasma Jet Acquisition and Image Processing Technology <sup></sup>

Experimental system of CCD real-time acquisition is developed according to high temperature property of plasma jet. Mathematical model of gray image and jet temperature distribution is established and basic principles of the CCD collection is analyzed. It realizes acquisition by a common image acquisition card in LabVIEW environment and real-time display of jet. Jet is collected on the computer image processing by using IMAQ Vision, and it intuitive analyzes the shape and temperature distribution according to pseudo-color image processing results of the jet temperature field. Experimental results deepen understanding of the complex nature of plasma jet, which have a guiding significance on the plasma technology in materials processing application.

Remote Sensing Image Enhancement Based on Orthogonal Wavelet Transformation Analysis and Pseudo-color Processing

Wavelet analysis based on image enhancement technique is only applicable to black-and-white image, and pseudo-color image processing technology cannot adequately deal with some of the details information of the image. In this paper, an enhanced approach of remote sensing image based on orthogonal wavelet analysis and pseudo-color image processing is presented. Enhanced remote sensing image has been greatly improved in both visual effects and noise characteristics. The method is simple yet flexible with less calculation. Moreover, the proposed method also has the advantages of faster computing speed and operating feasibly and so on. It has great potential in research and application of remote sensing image enhancement.

Digital Image Processing for Scanning Acoustic Microscopy

Ahrmct-The use of a versatile digital image storage and processing system for scanning acoustic micrmcopy is described. In addition to the data capture and storage functions, different types of image processing functions of particular relevance to scanning acoustic microscopy have been incorporated These ipclude real-time grey scale enhancement and a variety of ofStine edge enhancement, spatial fdtering, and pseudocolor processing algorithms. These facilities can enhance particular aspects of the image or 6lter out unwanted artifacts. Typical results are presented. The further potential of digital processing for scanning acoustic microscopy is discussed. recurring problem associated with the use of imaging apparatus is the production of a display which will do justice to the quality of the data acquired and which is able to take advantage of the powerful electronic techniques for image storage and processing. The image processing described in this paper arose out of necessity, in the course of working with a relatively new form of imaging-scanning acoustic microscopy. Our approach has therefore been to present our results as an example of the application of general image processing techniques to a set of specific problems, arising from this form of microscopy. The scanning acoustic microscope (SAM) was first demonstrated by Quate and Lemons in 1973 [l]. Since then it has been developed sufficiently to allow its use as a tool for investigation of a wide range of materials as well as biological samples. It is particularly appropriate for the examination of the interior of optically opaque media [2] - [4]. In the basic operation of a SAM (reflection or transmission) [5], the object is immersed in a liquid (normally water) and place at the focal plane of an acoustic lens where it is interrogated by a focused ultrasonic beam. The object is subsequently scanned over the entire field of view in a raster manner so that the image is formed point by point. In a typical instrument the two orthogonal displacements of the scanner are measured by means of position encoders. Both amplitude and phase data may be recorded at each point in the scan. As the information and the position encoder outputs are produced in an analog form it was, until recently, accepted practice to resort

Pseudocolor encoding with a white-light processing system

Pseudocolor encoding of black and white images utilizing a white-light processing system is described. The optical system can be used as a color parallel processor or a color serial processor to obtain various pseudocolor encoded images. Experimental results of pseudocolor processing are given.

高さ, 流速などの光学的擬色表示

高さ, 流速などの光学的擬色表示