Abstract: Methods, computer-readable mediums, and systems are provided. In one embodiment, a method detects at least one faulty X-ray detector signal and adjusts a conveyor speed and/or a gantry speed in accordance with the detection to increase information for image reconstruction. In another embodiment, a method detects a high volume time. Upon detection of the high volume time conveyor speed and gantry speed is increased during the high volume time. After expiration of the high volume time, the conveyor speed and gantry speed is reduced. In yet other embodiments, the computer-readable mediums and systems are also provided which perform similar features recited by the above methods.

Abstract: The invention concerns a method for executing cryptographic calculation in an electronic component, based on a specific cryptographic algorithm including at least one secret key operation (102) to be performed with a secret encryption key (103) comprising m secret encryption key blocks of n bits on a data block (101), wherein m and n are positive integers, and a non-linear operation (107).

Abstract: The invention relates to a method for validating a biometrical acquisition, mainly the acquisition of a body imprint of a body area such as fingerprints or a face imprint, wherein the method involves together with the biometric acquisition: lighting the body area using at least one radiation having at least two respective different wavelengths between approximately 500 nm and 1150 nm; taking at least two reflectometry measurements concerning said and at least two wavelengths for measuring the reflection index of the tissues for these wavelengths; calculating the ratio for two measured indices; and comparing the ratio with a range of reference values characterizing a haemoglobin-containing living tissue in terms of proportions of oxygenated and non-oxygenated forms characteristic of the living states for the wavelengths in question; if the ratio is included in said range, the body area is considered as living and the biometrical acquisition is validated; and conversely, if the body area is considered as not li

Abstract: An image processing device includes an image input portion, a motion vector acquisition portion and a distortion component estimation portion. The image input portion inputs a target image which is an image to be processed. The motion vector acquisition portion acquires a motion vector generated by relative movement with respect to a subject drawn in the target image when an imaging device which has generated the target image generates the target image. The distortion component estimation portion estimates a rolling shutter distortion component of the target image based on the motion vector.

Abstract: The present invention relates to a method and device for obtaining an image of a crumpled document from an image of this document when it is crumpled. The method comprises a step of determining a three-dimensional geometric model of the surface of the crumpled document by triangulation of three-dimensional points defined from the pattern of a target extracted from the image of this document when it is crumpled; the method is characterised in that it comprises a step of determining a projection of the three-dimensional geometric model onto a so-called acquisition plane, by means of error minimisation of this projection under constraints of preserving defined geometric characteristics in the vicinity of the three-dimensional points, and in that it comprises a step of superimposing the textures associated with the three-dimensional model onto the projection of this model thus determined.

Abstract: A method for increasing a spectroscopic signal in a biological assay is provided. The method includes forming a suspension of magnetically attractable particles. The method also includes introducing a first magnetic field at a first location to draw the magnetically attractable particles towards the first location and form a first agglomeration. The method also includes removing the first magnetic field. The method further includes introducing a second magnetic field at a second location to draw the first agglomeration towards the second location and form a second agglomeration. The method further includes focusing an excitation source on the second agglomeration formed at the second location.

Abstract: A sampling system that contains filter components for collecting and concentrating vapor and particles in high-volume flows. The sample is then vaporized and delivered to a detector at a low-volume flow. The invention also has a sampling probe that contains an air-jet to help dislodge particles from surfaces and a heating lamp to help vaporize compounds on surfaces or objects. The sampling system is especially useful for screening for explosives and other illicit chemicals and toxins on people, baggage, cargo, and other objects.

Abstract: A device for capturing biometric characteristics, the device having an optical sensor with a field of view covering a detection zone for detecting optical characteristics, and an electronic control unit that is connected to the sensor in order to control it, the control unit being placed at least in part in the field of view of the sensor and includes a memory containing at least one signature resulting from at least one reference optical characteristic of the control unit as seen by the sensor, and a comparator module for comparing the signature with at least one corresponding signature that results from at least one optical characteristic of the control unit as supplied by the sensor.

Abstract: A method of operating a screening system includes applying an electromagnetic field to a subject in a region at least partially enclosed by electromagnetic shielding, and measuring an output from a sensor. The output is representative of an interaction of the electromagnetic field and the subject. A trace vapor is collected from the subject within the region, and the trace vapor is identified. Based on the measured sensor output and the identified trace vapor, whether a target material is associated with the subject is determined.

Abstract: An apparatus includes an article and a detector. The article includes a substrate, a faceted structure disposed on the substrate, and a sensor layer disposed on the faceted structure. The faceted structure is disposed on the substrate first surface and itself has a surface. The faceted structure surface has peripheral edge defining a diameter of the faceted structure surface. The sensor layer is disposed on the faceted structure surface. The sensor layer can react or can interact with a target species when the target species is sufficiently proximate to the sensor layer. The sensor layer responds to the reaction or to the interaction in a detectable manner. The detector detects a response to the reaction, or to the interaction, of the target species with the sensor layer.

Abstract: An image processing apparatus 1 includes: a placement information acquisition section 40 which acquires, for each image sensor, placement information of the image sensors with respect to the imaging section 10; a movement information acquisition section 30 which acquires movement information of the imaging device; and an output area acquisition section which acquires, for every image sensor, position information of a second output area within the second frame image which corresponds to a first output area within the first frame image. The output area acquisition section acquires: a second output area A12 of a base image sensor based on position information of a first output area A11 determined by the placement information and based on the movement information; and a second output area A22 of another image sensor based on the placement information of the base image sensor, the placement information of the other image sensor, and the movement information.

Abstract: A sampling device that contains a heated porous inlet and a transfer line. The device provides sample compounds present as vapor, liquid, or solid, in air, or on surfaces such as soil. The sample device can collect and deliver the sample to an analyzer in real time and can operate while in motion such as on a moving vehicle. The sampling device is especially useful to screen toxic and hazardous compounds that might be contaminating an inhabited area.

Abstract: A method of identifying a person by his iris through determining an interior limit and using a predefined exterior limit to form an analysis zone. A code associated with the analysis zone is generated and compared with a previously generated reference code. If there is no match another predefined exterior limit is used. The process repeats as long as predefined exterior limits exist or until a positive match is made.

Abstract: A curtain assembly includes at least one curtain including at least one slat. The at least one curtain is configured to be rotatably coupled to a housing of a scanning system having a radiation source and a detector. The at least one curtain is further configured to facilitate drawing an object into the scanning system housing while substantially preventing radiation emitted from the radiation source from exiting the housing through the at least one curtain.

Abstract: A method for signing up a person for biometric verification purposes is provided, the method including: acquiring an image of a biological attribute of the person, the biological attribute including a set of characteristic elements, defining, within the acquired image, at least one area that includes at least part of the biological attribute, and storing, in a biometric database, at least one piece of information indicating that the number of characteristic elements included in said defined area is less than a respective predetermined integer. A related biometric verification method is also provided.

Abstract: An image identification method for classifying block images of input image data into one of predetermined categories; the method includes the steps of: dividing image data into multiple blocks to produce block images, processing the feature quantity of each block image by their color space information and frequency component, learning separating hyperplanes that indicate boundaries of each category by reading in training data image that have labeled categories for each block and processing image feature quantity for each block of an training data image, and classifying respective block image to a category according to the distance from the separating hyperplane of each category for a newly acquired image to obtain the image feature quantity of block images. An imaging apparatus implementing the image identification method noted above is also disclosed.

Abstract: Method for producing a three-dimensional image of an object, includes: providing a first image of an object, supplying image values associated with image elements of the first image to a processing device, calculating at least one image constructed from image elements and rotated around a rotation point through a rotation angle, dividing the rotated image into image lines, forming groups of corresponding image lines for at least two images, including the at least one rotated image, supplying the image values associated with image elements located along the image lines for the groups of corresponding image lines to an imaging device, and applying, with the imaging device, imaging intensities and/or colours corresponding to the image values onto a substrate under a pattern of linear lenses, so that the image intensities and/or colours of each group of corresponding image lines are applied under a linear lens associated with the group.

Abstract: An image processing device includes an image input portion, a motion vector acquisition portion and a distortion component estimation portion. The image input portion inputs a plurality of frame images. The motion vector acquisition portion acquires an amount of parallel movement between two frame images. The distortion component estimation portion performs approximation such that a motion matrix indicating a motion between the frame images consists only of a parallel movement component and a rolling shutter distortion component, uses the amount of parallel movement to calculate, for each of the frame images, a tentative distortion coefficient included in the rolling shutter distortion component and uses the plurality of tentative distortion coefficients calculated to estimate a distortion coefficient.

Abstract: A detection gate for detecting substances carried by an individual or an object, has two lateral uprights facing one another and defining a passage there between for the individual or the object, a blowing device installed in a blowing chamber in one of the uprights which are adapted to exhaust the air contained in the blowing chamber towards the other upright, an exhaust device installed in an exhaust chamber in the other upright, which are suitable for exhausting the air thus blown, a detection device arranged upstream from the passage and adapted to detect the presence of the substances in the air thus blown, and a transfer line which, via one of the ends thereof, leads into the blowing chamber and, via the other end thereof, into the exhaust chamber, the blowing device and the exhaust device being such that a single volume of air has time to pass through the passage at least twice during the time that individual or the object is present in the passage.

Abstract: A method of protecting a program interpreted by a virtual machine comprises the inclusion of interference operations during the execution of each program instruction. The scrambling operations are selected according to a program digest, so as to vary when a single instruction belongs to two different programs. In this way, any attempt at reverse engineering from side channels is made possible.