64 results about "Image computing" patented technology

Provided in this invention is a vein authentication device comprising: an interface on which a part of a living body; one or more light sources for emitting infrared light; an image pickup unit for picking up a blood vessel image of the part of the living body using infrared light emitted from the light sources; an image computing unit for processing the blood vessel image picked up by the image pickup unit; and a light shielding unit for shielding infrared light emitted from the light sources and preventing the infrared light from traveling in an image pickup direction of the image pickup unit, wherein the interface has an opening opened in the image pickup direction of the image pickup unit, and wherein the light sources irradiates the part of the living body with infrared light from an image pickup side of the part of the living body.

Various embodiments of an eye imaging apparatus are disclosed. In some embodiments, the eye imaging apparatus may comprise a light source, an image sensor, a hand-held computing device, and an adaptation module. The adaptation module comprises a microcontroller and a signal processing unit configured to adapt the hand-held computing device to control the light source and the image sensor. In some embodiments, the imaging apparatus may comprise an exterior imaging module to image an anterior segment of the eye and / or a front imaging module to image a posterior segment of the eye. The eye imaging apparatus may be used in an eye imaging medical system. The images of the eye may be captured by the eye imaging apparatus, transferred to an image computing module, stored in an image storage module, and displayed in an image review module.

In a method and CT apparatus and software product for reconstructing incomplete projection data sets for dose-reduced sectional spiral scanning along a z axis of a patient on a table that is movable in the z direction in the CT apparatus that has a radiation source supplied with tube current so as to emit a beam that strikes a detector system to obtain scanning data from which in an image computing device generates two-dimensional and three-dimensional scanning images of the examination subject, at a pitch greater or equal to one. For z positions having an incomplete projection data set for reconstruction of the image, in a preprocessing step data from another row of this projection and / or data for a previous or subsequent 360° rotation are used to compute a complete projection data set therefor.

In a method and CT apparatus and software product for reconstructing incomplete projection data sets for dose-reduced sectional spiral scanning along a z axis of a patient on a table that is movable in the z direction in the CT apparatus that has a radiation source supplied with tube current so as to emit a beam that strikes a detector system to obtain scanning data from which in an image computing device generates two-dimensional and three-dimensional scanning images of the examination subject, at a pitch greater or equal to one. For z positions having an incomplete projection data set for reconstruction of the image, in a preprocessing step data from another row of this projection and / or data for a previous or subsequent 360° rotation are used to compute a complete projection data set therefor.

Provided is a small-sized, flat, vein authentication device of high authentication accuracy by photographing a living body several times and thus obtaining as registration data plural images that are picked up at different positions. A biometric information processing device of this invention comprising an image pickup device, which picks up a vein image, an image computing unit, which processes the vein image picked up by the image pickup device, an interface on which a part of a living body to be picked up is placed, and a light source, which emits infrared light. The biometric information processing device is further comprised of a sensor unit, which detects the presence or absence of a subject picked up by the image pickup device, a unit to obtain plural images as registration data, and a unit to select optimum registration data out of images obtained as registration data.

The invention discloses a nondestructive testing fruit surface stool and pollutants method and device, and it uses the fruit transmission component to promote the fruit rolling forward, shooting the fluorescence image of various fruit parts; use the laser of LASER to irradiate the surface of fruits, and the fluorescence inspired by the fruit passes the lens to enter the machine installed with thefilter, and the election image intensifier, and the CCD camera to collect the different wavelength fluorescence image; using the computer system image acquisition card to get the image, and using theoptimized method to get the fluorescence images of three characterized wavelength, and using three typical wavelength spectral images to do the gray statistics and proportion image computing, and then, according to the calculation results, predicting pesticide residues and surface pollutants; in accordance with the instructions given by the computer signal, using high pressure jet mouth to blow the failed fruits to the poor fruit chute. The invention provides a fast NDT fruit pesticide residues and surface pollutants method and device.

The invention is a method for repairing the phase error caused by saturation by using a phase fusion algorithm, and relates to how to repair the phase error caused by saturation in the field of three-dimensional measurement. Adjust the camera so that the pixels are not saturated, the projector projects a solid-color grayscale pattern on the surface of the object, and uses the camera to record the scanned image; when the camera overflows, the projector projects multiple groups of structured light patterns to scan the object, two adjacent The maximum gray value (amplitude) of the group pattern increases, and the camera records the scanned image; calculates the modulation intensity and phase of the scanned structured light image; combines the captured pure color image to normalize the modulation intensity; selects each pixel The maximum normalized modulation intensity of , and its corresponding phase is taken as the final phase. The present invention fuses by selecting the phase corresponding to the maximum normalized modulation intensity, and is not limited by the degree of saturation. When the measurement system is nonlinear, it can also effectively repair the saturation error and expand the applicable range of repairing the saturation error.