XB-ART-27488
J Microsc
1988 Jun 01;150Pt 3:245-9. doi: 10.1111/j.1365-2818.1988.tb04643.x.
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Video microscopic image processing facilitates the evaluation of light microscopic autoradiography at high magnification.
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Light microscopic autoradiographs of 3H-thymidine labelled unstained semithin sections of Xenopus laevis embryonic nuclei were examined with conventional Nomarski differential interference contrast, phase-contrast and video microscopy. Whereas at low magnification it was possible to obtain a photograph of the nuclear structure and the silver grains in one focal plain, at high magnification, with small depths of focus, a satisfactory image was not attainable. Therefore, we stored the images of the two different focus levels with a digital image processing system and combined both images by an arithmetic operation. This video microscopic technique allows the use of high magnification light microscopy with oil immersion objectives and the application of additional electronic contrast enhancing methods for an adequate and rapid analysis of light microscopic autoradiographs.
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