Video display systems

Abstract

A method for transmission of a sequence of high quality images for display on a visual display unit is described. It has particular application in the field of telepathology, where magnified images obtained by scanning a medical specimen on the stage of an optical microscope are transmitted from a local pathologist to a remote consultant for diagnosis. The method consists of the steps of advancing the field of view of the camera in discrete steps across the object being viewed to capture a sequence of contiguous images, temporarily storing a digital representation of a first of the images in a first buffer store and a digital representation of at least part of the next succeeding image in a second buffer store, controlling the data in the two buffers stores such that the data follows the leading edge of the advancing viewpoint and data in the first buffer store representing a trailing incremental strip of the first stored image is progressively discarded while data in the second buffer store representing a trailing incremental strip of the next contiguous image is transferred to a location in the first buffer store occupied by the data representing a leading incremental strip of the first stored image.

Dependencies are inferred from the claim text.