Abstract:
The invention relates to a device for detecting and monitoring ingredients or properties of a measurement medium, for example physiological blood values, wherein said device contains a light source (20) for generating broad-spectrum measurement light (2) and for acting on a measurement area (3), and means (9) for fanning out the analysis light (4) reflected by the measurement area (3). The device also has a sensor array (11) for picking up the fanned light. The sensor array (11), the light source (20) and the means for dispersing the analysis light (4) are arranged as a compact unit in a housing.
Abstract:
The invention relates to a method for recording a fingerprint, with authenticity identification, using a fingerprint recording device which is connected to a data processing instrument and has a prism body with a contact face, an illumination unit for illuminating a finger disposed on the contact face and a first camera sensor for recording a fingerprint image, wherein a spectrometer with a slit-shaped stop running along a first direction for cutting out a slit-shaped region of the light reflected by the finger disposed on the contact face, brings about spectral spread in a second direction which differs from the first and, with a second camera sensor, records a multiplicity of spectra corresponding to a multiplicity of successive pixels, wherein, in the recorded fingerprint image of the first camera sensor, a region corresponding to the region defined by the stop of the spectrometer is cut out and epidermal ridges and troughs situated therebetween are identified in this region and the spatial data thereof is determined, wherein the spatial data relating to the ridges and troughs in the fingerprint image is used to combine those spectra from the multiplicity of spectra which, according to the spatial data thereof, are situated in ridges determined in the fingerprint image so as to form a ridge spectrum and to combine the spectra from the multiplicity of spectra which, according to the spatial data thereof, are situated in the troughs so as to form a trough spectrum, the ridge spectrum and the trough spectrum are normalized to the same overall intensity and these are subtracted from one another in order to form a difference spectrum, and wherein the difference spectrum is examined for features indicating the presence of covering materials foreign to the body and the authenticity is rejected if these are present.
Abstract:
A process for the optical detection of objects moved at a conveying speed. The process comprises illuminating the object in a temporally consecutive manner with a sequence of at least two light pulses of different colors and taking images of the object during each light pulse with a monochromatic optical area sensor comprising many sensor lines. The process comprises reading out and temporarily storing at least as many lines of each image as there are different colors of the light pulses. The read-out lines have a line pitch relative to each other. Sequentially combining lines from images taken under illumination by different colors to form color lines, with the lines combined with each other having the aforesaid line pitch or a multiple thereof relative to each other when they are being read out, and assembling the color lines into an overall color picture.
Abstract:
The invention relates to a device for detecting and monitoring ingredients or properties of a measurement medium, for example physiological blood values, wherein said device contains a light source (20) for generating broad-spectrum measurement light (2) and for acting on a measurement area (3), and means (9) for fanning out the analysis light (4) reflected by the measurement area (3). The device also has a sensor array (11) for picking up the fanned light. The sensor array (11), the light source (20) and the means for dispersing the analysis light (4) are arranged as a compact unit in a housing.
Abstract:
The disclosure relates to a method for recording a fingerprint, with authenticity identification, using a fingerprint recording device which is connected to a data processing instrument and has a prism body with a contact face, an illumination unit for illuminating a finger disposed on the contact face, and a first camera sensor for recording a fingerprint image.
Abstract:
A process for the optical detection of objects moved at a conveying speed. The process comprises illuminating the object in a temporally consecutive manner with a sequence of at least two light pulses of different colors and taking images of the object during each light pulse with a monochromatic optical area sensor comprising many sensor lines. The process comprises reading out and temporarily storing at least as many lines of each image as there are different colors of the light pulses. The read-out lines have a line pitch relative to each other. Sequentially combining lines from images taken under illumination by different colors to form color lines, with the lines combined with each other having the aforesaid line pitch or a multiple thereof relative to each other when they are being read out, and assembling the color lines into an overall color picture.