Abstract:
In one example, a document scanner has a fixed-position scan bar and a built-in translatable calibration target. The scan bar has a linear array of imaging elements aimed in an imaging direction. The calibration target is spaced apart from and parallel to the linear array, and has a planar surface orthogonal to the imaging direction spanning the length of the linear array. The target is translatable during a calibration in a direction in a plane of the surface.
Abstract:
Described herein is a processing apparatus, film scanner and associated method, such as a processing apparatus for processing motion picture film, comprising an identification module for identifying selected regions of one or more digital images or digital video clips of the film; and an image modification module configured to access or produce data; and modify at least one of the one or more digital images or the digital video clip so as to provide the data in at least one of the selected regions. Advantageously, the selected regions correspond to perforations in the film.
Abstract:
A mixed-element stitching and noise reduction system includes apparatus and methods for producing an image dataset having a reduced noise content without substantially impacting image reproduction accuracy. Such noise reduction is provided by replacing a portion of a first, higher noise image dataset with a portion of a second, lower noise dataset. In a preferred embodiment, two image datasets comprising a color-stitched image and a luminance image are received from a DFP image capturing system in which datasets are obtained from scanning the developing film at different development times. The received images are preferably separately stitched and separately converted to a color-space in which a luminance data channel is separated from image color information. The luminance channel of the luminance image is then preferably substituted for the luminance channel of the color-stitched image. More preferably, a log-time stitching technique is used and the stitched images are each converted to an L*a*b* color space.
Abstract translation:混合元件拼接和降噪系统包括用于产生具有降低的噪声含量而不显着影响图像再现精度的图像数据集的装置和方法。 通过用第二较低噪声数据集的一部分替换第一较高噪声图像数据集的一部分来提供这种降噪。 在优选实施例中,从DFP图像捕获系统接收包括彩色拼接图像和亮度图像的两个图像数据集,其中从不同显影时间扫描显影胶片获得数据集。 接收到的图像优选地被单独地缝合并分开地转换成其中亮度数据信道与图像颜色信息分离的颜色空间。 优选地,亮度图像的亮度通道被代替色拼接图像的亮度通道。 更优选地,使用对数时间拼接技术,并且将拼接图像各自转换为L * a * b *颜色空间。
Abstract:
In electronic film development, a film (101) is scanned, using light, multiple times during development. The light is reflected from an emulsion containing milky undeveloped silver halide embedded with developing grains. The undeveloped halide layer has a finite depth over which photons from a light source scatter backward. This depth is within the range of the coherency length of infrared sources commonly used in electronic film development, causing coherency speckle noise in the scanned image. A prescan made after the emulsion swells, but before the silver grains develop, normalizes subsequent scans, pixel by pixel, to cancel coherency speckle and other defects.
Abstract:
This invention relates to the thin electronic book on which the picture information of the film tape can be displayed on the thin liquid crystal display by inputting such information as conventional book or photograph on the specially designed film tape. Namely, the picture information of the film tape which is specially designed can be read by using the image sensor, and this signal is displayed on the liquid crystal display through the liquid crystal controller. The electronic book, which is handy, portable like a cassette tape instead of the conventional thick books or reference books which have to be carried.
Abstract:
A photographic film printer that forms an image on film based upon received or stored digital information is provided. While maintained in a stationary position, the film is exposed in a sequence of raster scans by a rotating disk traversing the photographic film surface. At least one optical film is attached to the rotating disk in a manner that transmits optical energy directed towards the center of the disk to a peripheral location on the disk. Exposure of the film occurs by controlling the emission of optical energy by the fiber in accordance with the received or stored digital information as the peripheral edge of the disk rotates past the film surface.
Abstract:
Mit der Erfindung wird ein Verfahren und auch ein Belichter angegeben, mit dem ein eine Vielzahl von einzeln zu belichtenden Zonen, z.B. mehreren hunderttausend solcher Zonen, aufweisendes Fotomaterial in wirtschaftlicher Weise und insbesondere in vertretbaren Belichtungszeiten erfolgen kann. Hierzu ist vorgesehen ein Verfahren zum Belichten eines eine Vielzahl von vorzugsweise regelmäßig, insbesondere zeilenweise, angeordneten, einzeln zu belichtenden Zonen aufweisenden Fotomaterials mit einem digital errechneten Bild mittels eines Belichters, bei welchem Verfahren eine kontinuierliche Relativbewegung zwischen dem Fotomaterial und dem Belichter durchgeführt wird und während dieser Bewegung die Belichtung der einzelnen Zonen erfolgt.
Abstract:
An apparatus and method for scanning a set of film images for a patient. A set of film images is assembled for scanning, and a case divider is provided at the beginning or end of the set of film images to serve as an indicator that differentiates the set of film images from any other film images to be scanned. The case divider is disposed on a separate sheet and bears a pattern that indicates its function as a case divider. The set of films is scanned along with the case divider to obtain scanned image data. The case divider pattern is detected in the scanned image data to identify the case divider.
Abstract:
A light box comprises two halogen 500 watt lamps supplied with DC rectified power, a scanning window made of 3 sheets, a thermoswitch, a fan and an intensity control circuit. The light box is adapted to be used with a reflective-type scanner. When a reflective-type scanner is mounted on the scanning window of the light box, the apparatus is able to scan substantially transparent materials, such as X-ray transparencies and to produce an image which can be used to determine the quality of the material of which physicians can use to perform radio-diagnosis.
Abstract:
A light box comprises two halogen 500 watt lamps supplied with DC rectified power, a scanning window made of 3 sheets, a thermoswitch, a fan and an intensity control circuit. The light box is adapted to be used with a reflective-type scanner. When a reflective-type scanner is mounted on the scanning window of the light box, the apparatus is able to scan substantially transparent materials, such as X-ray transparencies and to produce an image which can be used to determine the quality of the material of which physicians can use to perform radio-diagnosis.