Abstract:
The present invention concerns a method of splicing two sealing strips and a sealing strip formed by the method. The sealing strip is placed at longitudinal edges of a packaging material web, used for packaging containers for liquid foods. The sealing strips to be spliced are cut each forming an oblique edge of about 45°, as seen in plan view. The oblique edges are then placed one on top of the other forming an overlapping area. The overlapping area is in the form of an oblique band having a length of about 3 mm. The ends of the sealing strips are then fused together by heating both from one side at the overlapping area.
Abstract:
The present invention concerns a method of splicing two sealing strips and a sealing strip formed by the method. The sealing strip is placed at longitudinal edges of a packaging material web, used for packaging containers for liquid foods. The sealing strips to be spliced are cut each forming an oblique edge of about 45°, as seen in plan view. The oblique edges are then placed one on top of the other forming an overlapping area. The overlapping area is in the form of an oblique band having a length of about 3 mm. The ends of the sealing strips are then fused together by heating both from one side at the overlapping area.
Abstract:
A method for a fast color saturation control of digital color images using one color saturation factor has been achieved. Said method can be performed in any color space having three primaries as e.g. the R-G-B or in the CMY color space without the requirement to convert all the pixels of said color image into another color space as e.g. HSI to perform the color saturation control. Thus a significant computational effort for the conversion of the pixels from one color space into another and back can be avoided. Saving computational effort saves time and reduces the electrical power consumption. Right after the color saturation control process the corrected images can be viewed, if the colors are not satisfactory the process can be easily repeated using a modified color saturation factor. Said method can be used for new pictures taken by a digital camera as well as for downloaded pictures from any source. Additionally said method of color saturation control can be combined with a color correction process.
Abstract:
A strip tape has a structure, in order, comprising the following layers: a first layer with an outwardly facing surface of polypropylene; a first adhesive layer; a core layer of an oxygen barrier polymer; a second adhesive layer; and a second layer with an outwardly facing surface of polypropylene. In addition, a packaging container is provided with the strip tape to protect a longitudinal joint of the container, on the inside thereof. A method of producing the strip tape involves joining a first film having an outwardly facing surface of polypropylene to a first side of a core layer film having an oxygen barrier polymer by adhesive lamination with a first adhesive layer and joining a second film having an outwardly facing surface of polypropylene to a second side of the core layer film by adhesive lamination with a second adhesive layer.
Abstract:
A method and a system for an automatic white balancing of color images being exposed to different illuminants have been achieved. The color information from the sensor color channels is measured and averaged over all pixels belonging to each of the colors of the color array used. The result is equivalent to what color a 1-pixel camera would see if pointed to the same scene. From this “statistical pixel” the ratios of the colors involved are calculated. Pictures taken in different illuminants as e.g. daylight, fluorescent light or incandescent light can then be separated due to their location in different categories in a space defined by said ratios of the colors involved. Each category has predefined white balance factors, which are applied to the image now.
Abstract:
An exposure table (20) included in an apparatus for handling sheets for microfilming or other similar recording is provided with slots (28) open through the table surface (27) facing the camera (14). Sheet drivers (22) run in these slots for feeding a sheet stepwise to the exposure table, said drivers being fastened to conveyor belts (21) running in channels (26) below the table surface (27). The conveyor belts have preferably a feed direction that forms a small angle (v.sub.1) with a guide ledge (23) along one table edge extending in the conveyor direction. Moreover, the exposure table is preferably provided with means (29, 30) for sucking by vacuum each sheet firm on the exposure table surface.
Abstract:
A method used for the compensation of vignetting in digital cameras has been achieved. The compensation for vignetting is done in two steps. The first step is done during production of the camera unit and involves taking and analyzing an image of a test screen, preferably a gray test screen. This results in a set of e.g. 5×5 coefficients describing a polynomial surface. The second step is done for each image that is taken by the camera and involves calculating and applying a gain-table based on polynomial coefficients to all pixels of the image to compensate vignetting.
Abstract:
A method and a system for the compensation of Fixed Pattern Noise (FPN) in digital images have been achieved. The FPN compensation is based on processing done during the production of said images. The fixed pattern noise is here defined as the fixed pattern seen in the individual pixel offsets. The fixed pattern noise is uncorrelated noise but it has a statistical distribution that can be scaled to fit all images. The general idea is to measure the distribution for each individual camera, compress it, and save it in the module. For each image that is then taken with the module the noise pattern can be retrieved and rescaled to fit the image. Covered pixels are employed to normalize the FPN data to the current frame. In order to minimize memory requirements a compression scheme has to be used. A method combining a quantization step with a non-lossy compression is used. The black level is corrected for as part of the operation.
Abstract:
A method for compressing a digital image composed of a matrix of pixels to provide a compressed digital representation of said image of a predetermined size, the quality of the compressed digital representation being affected by a compression quality factor Q and the method including the fol-lowing steps: for a particular image producing device, developing a mathematical model defining a relationship between the content of the digital image and Q, developing said mathematical model by repeatedly compressing a set of digital test images with varying Q until each test image is compressed to a predetermined size, determining a metric M representing the content of the digital image, applying said metric M in said mathematical model to obtain an image determined quality factor Qmod and compressing the digital image using said quality factor Qmod.
Abstract:
A method and an apparatus is provided for casting molten metallic materials through runners in the form of casting gates, flow-through tubes, feeders, rising gates and the like. The method basically comprises casting the molten metals through runners defined by bodies of porous calcium hydro-silicate such as gas concrete. A filler, such as quartz, may be used. The runner bodies are formed of gas concrete and provided with a moisture ratio of 3 to 30% so as to afford progressive evaporation of the moisture during casting to thereby produce a cooling effect on the runner walls. The runner bodies can be reinforced.