摘要:
The present invention relates to a procedure and an apparatus for optimizing the visual quality of an image. In the procedure, the greyness balance of the image is adjusted by a statistical method and the colour reproduction is adjusted to make it correspond to a standard observer's preference, which is a predetermined optimum value for colour reproduction. The procedure can be used e.g. to improve the quality of images transmitted over information networks by providing the image transmission path with an apparatus which corrects images detected in the transmission path by applying the procedure of the present invention.
摘要:
The invention relates to a camera system and to a display device for displaying images recorded by the camera system. The camera system comprises a camera (1) provided with an optics system (2) and a photosensitive image surface (3) disposed near the optics symmetrically relative to its optic axis, the image refracted by the optics being projected onto said image surface. The photosensitive image surface is a concave spherical surface whose center of curvature is at the focal point of the optics.
摘要:
The present invention relates to an apparatus for contact drying rotary-peeled or cut wood veneers. The apparatus comprises a first belt assembly (3), which comprises a first metal belt (1 ) and a second belt assembly (4), which comprises a second metal belt (2) and a porous screen band (6) or a porous surface section (8) in between the second metal belt and the wood veneer (5). The apparatus comprises heating means (11) for heating the first metal belt (1) to the first temperature (T1 ) and cooling means (12) for keeping the second metal belt (2) at the second temperature (T2), which is about the amount of the difference in temperature (ΔT) lower than said first temperature (T1). Further the apparatus comprises pressing means to press the first belt assembly (3) and the second belt assembly (4) towards each other during said heating and cooling whereupon compression pressure (P) is applied to the wood veneer between them. The first belt assembly (3) and the second belt assembly (4) are moved at the same velocity (V) with a control unit (9).
摘要:
The invention relates to an absolute power measurement to be made with high internal and/or external quantum efficiency to be utilised in a detector comprising at least one film layer (301 ) on a substrate (118) so forming a structure to guide radiation (?), within a wave length in a wavelength range and means (202, 203) arranged to get at least part of said radiation (?) absorbed in the detector body (118) by a conversion of the energy of said radiation photons (?3) to energy of an electrical current (h+, e") in an operation temperature (T) of the detector. The invention relates also to a method, measuring arrangement and system to be used in accordance of said detector.
摘要:
The present invention relates to utilization of metadata associated with a printed image. Portions of images and metadata are stored, each of the metadata being associated with a portion of the images. Imaging means are used to read a portion of the printed image. Correspondence between the read portion and the stored portions is determined. Metadata associated with a stored portion is retrieved in response to the determined correspondence between the read portion and the stored portion in question exceeding a predetermined threshold value. Further, the retrieved metadata or additional data indicated by it is retrieved.