Abstract: The invention provides a method, apparatus and computer program product for providing an interactive visual representation (16) on a display (10). The invention comprises showing a two-dimensional visual representation (16) on the display (10), wherein the visual representation (16) comprises a plurality of continuously moving visual elements (18.x) that provide the appearance of a three-dimensional shape, using at least two images (24.x) of a sequence of images (24.x) taken by at least one electronic camera (12) to determine at least one movement value, wherein the movement value is indicative of a movement of a person as depicted by the at least one electronic camera (12), and influencing the visual representation (16) based on the at least one movement value. The invention provides an interactive visual representation (16) that works well even if a rather simple movement tracking technique is used.

Abstract: An method and an apparatus for measuring the partial pressure of gases dissolved in liquids in plants for carrying out biotechnological and food technological processes includes a measuring space which is separated by a gas-permeable diaphragm which is permeable for the gas to be determined. A light emission source produces a light ray with a wavelength which is absorbed by the gas to be determined. The light ray is directed into the measuring space. A measuring device is provided for determining the light ray leaving the measuring space. The measuring space, the light emission and the measuring device are arranged in a rod-shaped probe. The probe is capable of being sterilized. The measuring space is filled with a fluid which does not chemically react with the gas to be determined.