Abstract: In order to increase the depth of field of an optical system, there is provision to add a phase object, interposed between an object (O) to be imaged and an image plane (8) of the optical system. The phase object is interposed although a chromatic aberration of the system is not yet corrected. After interposition, the measured optical signal is corrected complementarily so as to eliminate the chromatic aberrations therefrom. It is shown that if a parameter of the expansion of the expression, a function of pupil dependency, that the difference in path length of the optical system possesses a significant value of higher order than that of the defocus, then an increase in the depth of field is obtained.

Abstract: The invention concerns a method for activating a function by using a measurement taken from at least one digital image (10) having at least two colours (195, 196) and originating from an image-capturing apparatus, the method including measuring the relative sharpness (190) between at least two colours in at least one region R of the image, and controlling at least one action (191) depending on the measured relative sharpness.

Abstract: A method and a system with which the quality of an image derived from or addressed to a chain of appliances can be modified. Formatted information related to defects of the appliances is employed. The method and system: compile directories of sources of formatted information related to the said appliances, search automatically for the formatted information related to the appliances, and modify the image automatically by image-processing software and/or image-processing components by taking into account the obtained formatted information. The formatted information can be modified as a function of variable characteristics of the image to be processed and/or the appliances. With the method and system it is possible to process images derived from appliances that have diverse origins and that have been commercialized gradually over time. Such a method and system are applicable to processing of photographic or video images and in optical instrumentation, industrial controls, robotics, metrology, etc.

Abstract: A method for activating a function by using a measurement taken from at least one digital image having at least two colors and originating from an image-capturing apparatus, wherein a relative sharpness is measured between at least two colors on at least one region of the digital image, and at least one function is activated depending on the measured relative sharpness.

Abstract: To increase the depth of field of an optical system, an inversion of the chromatism is produced. This accommodates the fact that, in natural light, users prefer, for their photographs, taking long distance shots outdoors, where the illuminant is mostly composed of blue, and short-distance shots indoors, where the illuminant is mostly composed of red. While optical devices naturally focus the blue components at a shorter distance than the red components, which is unfavorable, with an inversion of the chromatism, a focus more in keeping with what is required is restored.

Abstract: The invention concerns a method for activating a function by using a measurement taken from at least one digital image (10) having at least two colours (195, 196) and originating from an image-capturing apparatus, the method including measuring the relative sharpness (190) between at least two colours in at least one region R of the image, and Controlling at least one action (191) depending on the measured relative sharpness.

Abstract: The method and a system for producing formatted information related to defects of appliances of a chain of appliances. To produce the formatted information related to the defects of an image-capture appliance of the chain, the method includes a first calculation algorithm with which there can be chosen, within a set of parameterizable transformation models, within a set of parameterizable reverse transformation models, within a set of synthesis images, within a set of reference scenes, and within a set of transformed images: a reference scene, and/or a transformed image, and/or a parameterizable transformation model with which a reference image of the reference scene can be transformed to the transformed image, and/or a parameterizable reverse transformation model, with which the transformed image can be transformed to the reference image, and/or a synthesis image obtained from the reference scene and/or obtained from the said reference image.

Abstract: A method and system with which quality of an image derived from or addressed to a chain of appliances can be modified. Formatted information related to defects of the appliances is employed. The method and system: compile directories of sources of formatted information related to the appliances, search automatically for the formatted information related to the appliances, and modify the image automatically by image-processing software and/or image-processing components by taking into account the obtained formatted information. The formatted information can be modified as a function of variable characteristics of the image to be processed and/or the appliances. With the method and system it is possible to process images derived from appliances that have diverse origins and that have been commercialized gradually over time. Such a method and system are applicable to processing of photographic or video images and in optical instrumentation, industrial controls, robotics, metrology, etc.

Abstract: A method and a system for producing formatted information related to defects of appliances of a chain of appliances. To produce the formatted information related to the defects of an image-capture appliance of the chain, the method includes a first calculation algorithm with which there can be chosen, within a set of parameterizable transformation models, within a set of parameterizable reverse transformation models, within a set of synthesis images, within a set of reference scenes, and within a set of transformed images: a reference scene, and/or a transformed image, and/or a parameterizable transformation model, with which a reference image of the reference scene can be transformed to the transformed image, and/or a parameterizable reverse transformation model, with which the transformed image can be transformed to the reference image, and/or a synthesis image obtained from the reference scene and/or obtained from the reference image.

Abstract: A method and system for providing, in accordance with a standard format, formatted information to an image-processor, especially software and/or components. The formatted information is related to defects of a chain of appliances including an image-capture appliance and/or an image-restitution appliance. The image-processor uses the formatted data to modify the quality of at least one image derived from or addressed to the chain of appliances. The formatted information includes data characterizing defects of the image-capture appliance, especially distortion characteristics, and/or data characterizing defects of the image-restitution appliance, especially distortion characteristics. The method fills in at least one field of the standard format with the formatted information. This field is designated by a field name and contains at least one field value.

Abstract: A method and system for processing generic formatted data, including first data describing a sequence of generic operations without any loops, in view of providing specific formatted data, for a determined platform including Q processor(s) and at least one memory, the platform configured to process, according, directly or indirectly, to specific formatted data, an object made up of elementary information of same type, each elementary information being represented by at least one numerical value.

Abstract: A processing system and method for producing formatted information related to appliances of an appliance chain. This appliance chain includes at least one image-capture appliance and/or at least one image-restitution appliance for capturing and/or restituting an image on a medium. The system and method produce formatted information related to geometric distortions of at least one appliance of the chain. Fixed characteristics of the appliances and/or variable characteristics depending on the image can be taken into account. The fixed characteristics and/or the variable characteristics can be associated with one or more characteristic values, especially the focal length and/or the focusing. Then, measured formatted information related to the geometric distortions of the appliance are produced from a measured field. The system and method are applicable to photographic or video image processing, in optical devices, industrial controls, robotics, metrology, etc.

Abstract: A method for enhancing quality of service concerning at least one multimedia data, in particular concerning photographs, and/or video, and/or audio, and/or text, involving least one processing of the data. The method includes determining, beforehand or in real time, based on the factor, a first fraction of the multimedia data to be processed in the mobile telephone, a second fraction of the multimedia data to be processed in at least one remote server connected to the mobile telephone via the network, a first fraction of the processing to be carried out in the mobile telephone, and a second fraction of the processing to be carried out in at least one remote server, and performing each fraction of the processing and/or processing each fraction of the multimedia data thus determined in the mobile telephone and/or in the remote server.

Abstract: A method for providing generic formatted data to at least one digital data processor, configured to translate generic formatted data into specific formatted data. The generic formatted data includes data relative to logical blocks, at least one of the logical blocks corresponding to an object to be processed directly or indirectly according to specific formatted data by at least one processing platform with processor(s) and memory(ies), located upstream from the processor or integrated into the processor, the object being made up of elementary information of same type, all information being represented by at least one numerical value.

Abstract: A method for enhancing quality of use of at least one service concerning at least one multimedia data, in particular concerning photographs, video, audio, and/or text. The method includes automatically implementing before and/or during and/or after acquiring the multimedia data functions of the terminal required for the service. The automatic implementation of functions of the terminal including selecting, among the functions available in the terminal, functions required for the service, automatically and/or manually setting up by the user, of at least one scenario suited to the service, the scenario including logically concatenated sequences of the selected functions. The method further, for the user, selects a specific scenario among the previously set up scenarios.

Abstract: A method for processing, in a platform having one or more processors and memories, an object including elementary information of same type. The method decomposes the object to be processed into at least two sub-objects of N elementary information each, all the sub-objects having the same quantity N of elementary information, the processing performing at least one sequence of specific operations on the elementary information of each sub-object performing, for each sub-object, at least N times each specific operation, such that each elementary information for each sub-object is applied at least one time, and N results are produced for each specific operation, the sequence of specific operations being such that at least one specific operation of the sequence produces, at least once during its N applications, a result used for the processing of another sub-object.

Abstract: A system and a method for correcting chromatic aberrations of a color image composed of a plurality of digitized color planes. The color image is assumed to have been produced by an optical system. According to the system and method, geometric anomalies of the digitized color planes are modeled and corrected, at least partly, in such a way to obtain corrected digitized color planes. The corrected digitized color planes are then combined to obtain a color image corrected completely or partly for the chromatic aberrations. The system and method are applicable to photographic or video image processing, in optical devices, industrial controls, robotics, metrology, etc.

Abstract: The invention concerns a method for activating a function by using a measurement taken from at least one digital image (10) having at least two colours (195, 196) and originating from an image-capturing apparatus. According to such method: the relative sharpness is measured (190) between at least two colours in at least one region R of the image, and at least one action is controlled (191) depending on the measured relative sharpness.

Abstract: A method for production of an image recording and/or reproduction device, including an optical image recording and/or reproduction system, an image sensor and/or generator and/or a synchronization system, the image being processed for improvement by a digital image processor. According to the method, parameters of the optical system and/or the sensor and/or the image generator and/or the synchronization system are determined or selected using the capacity of the digital image processor. The production costs are thus minimized and/or the performance of the image recording and/or reproduction device is optimized.

Abstract: The invention relates to a system and method for calculating a transformed image from a digital image and formatted information related to a geometric transformation, especially formatted information related to the distortion and/or chromatic aberrations of an appliance chain. This calculation is carried out on the basis of an approximation of the said geometric transformation. The invention is applicable to photographic or video image processing, in optical devices, industrial controls, robotics, metrology, etc.