In this paper we present a new auto -microscope system controlled by microcomputer for image processing. The microstructure of objects can be observed and processed. A charge-coupled device (CCD) array is used as the photoelectric detector. This auto -microscope system can complete autofocusing, recognizing or screening out pattern in the field of view and automatic measuring for photomicrographing by the light intensity information sampling by CCD array.For this auto -microscope system we designed the scanning mechanism of microscope stage, adjustable holder of CCD in 5-Dimention, autofocusing mechanism and a auto -photomicrograph camera with large cassette. The autofocusing discrimination function constructed by means of self entropy is better suitable for low contrast image produced by microscope system. The geometrical features of the microscope image are selected for composing the discrimination function and this discrimination function is used for classifing the patterns in the microscope field of view by training samples. Automatically measuring light for photomicrograph is realized by the same CCD array and the controlling circuit, interface circuit and other circuits of this system are developed. Some experiments results: autofocusing, auto -screening the cell pattern in the microscope field of view are given.The functions of controlling box are: providing power of all parts of the system and the microcomputer, controlling circuits. All operating and displaying are given on operating panel. The schematic diagram of the controlling box is shown in Fig.2. In Fig.2, driving circuit drives the CCD array sample data of image. Sampling circuit realizes amplifying and A/D converting, sampled data signals by CCD array are put in the microcomputer.Step motors 1, 2, 3, 4 and 5 control scanning of microscope stage in x and y directions, scanning of image, autofocusing, automatic rolling films of the camera respectively. The alarms display on the panel is indicational system which displays the ABSTRACT In this paper we present a new auto-microscope system controlled by microcomputer for image processing. The microstructure of objects can be observed and processed. A charge-coupled device (CCD) array is used as the photoelectric detector. This auto-microscope system can complete autofocusing, recognizing or screening out pattern in the field of view and automatic measuring for photomicrographing by the light intensity information sampling by CCD array. Downloaded From: http://proceedings.spiedigitallibrary.org/ on 06/27/2016 Terms of Use: http://spiedigitallibrary.org/ss/TermsOfUse.aspx SPIE Vol. 1161 New Methods in Microscopy and Low Light Imaging (1989) / 311 Downloaded From: http://proceedings.spiedigitallibrary.org/ on 06/27/2016 Terms of Use: http://spiedigitallibrary.org/ss/TermsOfUse.aspx SPIE VoL 1161 New Methods In Microscopy and Low Light Imaging (1989) / 317 Downloaded From: http://proceedings.spiedigitallibrary.org/ on 06/27/2016 Terms of Use: http://spiedigitallibrary.org/ss/TermsOfUse.aspx
In this paper, a multi-channel associative memory instrumentation prototype was presented, which was divided into two parts spatially. The lower part is a one-channel system using diode-pumped solid-state laser for demonstrating the holographic associative memory miniaturization, while the upper one is a four-channel system for proving the parallel processing architecture. Each channel is actually a photorefractive-based associative memory with external storage and using liquid crystal switch as threshold device in correlation domain.
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