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Showing papers on "Human visual system model published in 1967"


Journal ArticleDOI
TL;DR: In radioisotope image visualization, an inherent blurring of the image limits the amount of useful information which can be extracted from it, so attempts have been made to restore the image by compensating for the degradation.
Abstract: In radioisotope image visualization, the final image must be interpreted by the human visual system. However, an inherent blurring of the image limits the amount of useful information which can be extracted from it. Attempts have been made to restore the image by compensating for the degradation. By expressing the radioisotope image as a convolution integral of a true radioisotope distribution, with the spatial resolution of the imaging system, and by using an iterative approximation method for the evaluation of the integral, a 'restored image' is obtained. An experimental result on a profile scan demonstrates the applicability of the method to radioisotope imaging systems.

36 citations


Journal ArticleDOI
TL;DR: Inspection of horizontal, vertical, or diagonally oriented line gratings differentially affects the ability to detect test contours as a function of their orientation as discussed by the authors, and the orientation-specific effects on visual acuity are systematic functions of the duration of adaptation to the patterns of light and dark lines.
Abstract: Inspection of horizontal, vertical, or diagonally oriented line gratings differentially affects the ability to detect test contours as a function of their orientation. The orientation-specific effects on visual acuity are systematic functions of the duration of adaptation to the patterns of light and dark lines.

22 citations


Journal ArticleDOI
TL;DR: It is your own time to continue reading habit and one of the books you can enjoy now is a proposed model for visual information processing in the human brain here.
Abstract: One day, you will discover a new adventure and knowledge by spending more money. But when? Do you think that you need to obtain those all requirements when having much money? Why don't you try to get something simple at first? That's something that will lead you to know more about the world, adventure, some places, history, entertainment, and more? It is your own time to continue reading habit. One of the books you can enjoy now is a proposed model for visual information processing in the human brain here.

14 citations