Abstract:
A method for encoding an image descriptor (H) based on gradient histograms (hp) into a transformed descriptor (V) having transformed subdescriptors (vp), wherein each gradient histogram (hp) includes a plurality of histogram bins (hi) and each subdescriptor (vp) includes a set of values (vj), wherein the subdescriptors (vp) are generated according to an element utilization order list specifying a subdescriptor index (p) of the set of sub descriptors (vp) and an element index (j) of the set of values (vj).
Abstract:
A method for transforming an image descriptor, based on a gradient histogram (h) having a plurality of histogram bins (hi), into a transformed gradient histogram descriptor (v) including a set of values (vj), wherein it is provided the step of applying at least one criterium for calculating the set of values (vj), at least one criterium having a location criterium of the histogram bins (hi). The invention also relates to an image processing device suitable for carrying out the method.
Abstract:
A method for generating a variable-band modulated signal (x) where the modulating digital signal (X) of the modulated signal (x) includes at least one component (C, S, P); the digital information (r) about the variable band is repeatedly or periodically superimposed on the at least one component (C, S, P) or on the modulating signal (X). While processing the received modulated signal (x″), the modulated digital signal (X″) is extracted, the superimposed digital information (r) is obtained, and the extracted digital information (r) is used to determine the band of the modulated signal (x″) and to complete the demodulation and decoding of the modulated signal (x″).
Abstract:
A method for managing a map (140) stored in a memory (130) associated with a personal navigation device (10), including a command and data entry unit (115) operable by a user, wherein the map (140) can be visualized on a display (115) and includes a road network, the method including the step of combining a first set of data about the road network, stored in the map (140), with a second set of data about at least one road not present in the road network or defined as not viable, in particular a new road, wherein the second data can be entered by the user by the command and data entry unit (115).
Abstract:
A method for reconstructing the map of an environment (20) surrounding a wireless device (100), the environment (20) being equipped with one or more radio frequency tags (1) set in a number dependent on the level of detail to be obtained in the reconstruction, the method including the steps of: receiving identification and localization data of the one or more radio frequency tags (1) over a wireless connection by at least one wireless receiver (3) of the wireless device (100); storing the identification and localization data of the one or more radio frequency tags (1) into a filing and/or storage component (5,6) by a processor (2) of the wireless device (100); and providing on an output component (7) of the wireless device (100) at least one map of the environment (20) built on the basis of the identification and localization data of the radio frequency tags (1).
Abstract:
A method for encoding a raw lenselet image includes a receiving phase, wherein at least a portion of a raw lenselet image is received, the image including a plurality of macro-pixels, each macro-pixel having pixels corresponding to a specific view angle for the same point of a scene, and an output phase, wherein a bitstream having at least a portion of an encoded lenselet image is outputted. The method has an image transform phase, wherein the pixels of said raw lenselet image are spatially displaced in a transformed multi-color image having a larger number of columns and rows with respect to the received raw lenselet image, wherein dummy pixels having undefined value are inserted into the raw lenselet image and wherein the displacement is performed so as to put the estimated center location of each macro-pixel onto integer pixel locations. Moreover, the method includes a sub-view generation phase, wherein a sequence of sub-views is generated, said sub-views having pixels of the same angular coordinates extracted from different macro-pixels of the transformed raw lenselet image. Finally, the method has a graph coding phase, wherein a bitstream is generated by encoding a graph representation of at least one of the sub-views of the sequence according to a predefined graph signal processing technique.
Abstract:
A method for edge correction of images of a three-dimensional video content, the video content including at least one original view image and at least one depth or disparity map, the method including the following steps: detecting edges in at least one original view image for obtaining original edges; warping the original edges according to the depth or disparity map; detecting a set of warped edges altered by the warping process; and correcting the altered edges for obtaining corrected edges.
Abstract:
A method is described for re-determining, in a television apparatus, a program table including associations between alphanumeric labels and radio-television programs, each one of the alphanumeric labels indicating a string of characters that must be selected by the user in order to activate the reproduction of one of the radio-television programs associated therewith, the method including the steps of biunivocally associating with each radio-television program in the table an alphanumeric label comprising a numeric part; allowing at least a first list and a second list to be simultaneously displayed on a screen, both including identification data of the radio-television programs obtained from the program table, the radio-television programs being sorted in the lists according to sorting criteria; selecting a first program from the first list of programs sorted according to a first sorting criterion, the first program being associated with a first alphanumeric label; selecting a second program from the second list of programs sorted according to a second sorting criterion, the second program being associated with a second alphanumeric label; and modifying the value of the first alphanumeric label of the first program with an alphanumeric label value comprised in the range delimited by the value of the second alphanumeric label, extreme included, and by the value of the alphanumeric label, extreme excluded, which immediately precedes the second alphanumeric label in the second list.
Abstract:
A method for generating a variable-band modulated signal (x) where the modulating digital signal (X) of the modulated signal (x) includes at least one component (C, S, P); the digital information (r) about the variable band is repeatedly or periodically superimposed on the at least one component (C, S, P) or on the modulating signal (X). While processing the received modulated signal (x″), the modulated digital signal (X″) is extracted, the superimposed digital information (r) is obtained, and the extracted digital information (r) is used to determine the band of the modulated signal (x″) and to complete the demodulation and decoding of the modulated signal (x″).
Abstract:
A method is described for re-determining, in a television apparatus, a program table including associations between alphanumeric labels and radio-television programs, each one of the alphanumeric labels indicating a string of characters that must be selected by the user in order to activate the reproduction of one of the radio-television programs associated therewith, the method including the steps of biunivocally associating with each radio-television program in the table an alphanumeric label comprising a numeric part; allowing at least a first list and a second list to be simultaneously displayed on a screen, both including identification data of the radio-television programs obtained from the program table, the radio-television programs being sorted in the lists according to sorting criteria; selecting a first program from the first list of programs sorted according to a first sorting criterion, the first program being associated with a first alphanumeric label; selecting a second program from the second list of programs sorted according to a second sorting criterion, the second program being associated with a second alphanumeric label; and modifying the value of the first alphanumeric label of the first program with an alphanumeric label value comprised in the range delimited by the value of the second alphanumeric label, extreme included, and by the value of the alphanumeric label, extreme excluded, which immediately precedes the second alphanumeric label in the second list.