Patent application number | Description | Published |
20080240251 | Method For the Encoding of Wavelet-Encoded Images With Bit Rate Control, Corresponding Encoding Device and Computer Program - The disclosure relates to a method of coding at least one still or animated image, in which said image is associated with (i) a basic mesh formed by a set of faces that are defined by a set of vertices and edges and (ii) coefficients in a base of wavelets corresponding to local modifications to the basic mesh, known as wavelet coefficients, wherein the coded data rate is controlled. The method includes the following steps: controlling a first rate of data representative of a basic mesh that meets a first rate criterion; controlling a second rate of data representative of wavelet coefficients according to a second rate criterion; and finally optimizing the coded data rate by controlling the quantification characteristics of the selected wavelet coefficients. | 10-02-2008 |
20090132210 | METHODS, DEVICES AND PROGRAMS FOR TRANSMITTING ROOF AND BUILDING STRUCTURE OF A 3D REPRESENTATION OF A BUILDING ROOF BASED ON SAID STRUCTURE - A technique is provided for transmitting a roof structure for constructing a three-dimensional representation of a building, via a communication network. The technique is based on the transmission of an ordered list of at least two roof models, each including at least: one type of roof; one maximum height parameter of the roof. During construction of the three-dimensional representation of a building, the maximum height parameter of a roof of the list determines a base of the roof in accordance with the list, so that the roof structure corresponds to the ordered superimposition of the roods of the list. | 05-21-2009 |
20100053153 | METHOD OF CODING DATA REPRESENTATIVE OF A MULTIDIMENSIONAL TEXTURE, CODING DEVICE, DECODING METHOD AND DEVICE AND CORRESPONDING SIGNAL AND PROGRAM - The invention relates to a method of coding data representative of a multidimensional texture, said data being initially organized on a number of dimensions at least equal to three, at least one of said dimensions being associated with a rendition parameter for said texture, characterized in that it comprises the steps of:
| 03-04-2010 |
20100268766 | DATA MANAGEMENT IN A GEOGRAPHICAL INFORMATION SYSTEM - In a geographical information system, a spatial environment is represented according to representation data with reference to geographical areas. The geographical information system comprises a server and a terminal connected via a communication network. The server stores the representation data according to the geographical areas. A selection of a plurality of geographical areas is made at the level of the terminal, as a function of a criterion relating to a load level of the terminal. A request is sent from the terminal to the server indicating the selected plurality of geographical areas. The terminal receives the representation data according to a continuous transmission protocol. | 10-21-2010 |
20110273450 | METHOD OF REPRESENTING A MATERIAL - A method is provided for representing a material by approximating an original function modeling the interaction of the material and of light emitted by a light source, which function is defined as a function of pixels, of viewpoints, and of light directions, the method comprising: for each viewpoint, the steps of performing a polynomial approximation of the original modeling function and a geometric approximation of a residue resulting from the difference between the original modeling function and the polynomial approximation of said function; and a step of simplification by decomposing the results obtained from the two approximations into wavelet packets. | 11-10-2011 |
20140085417 | METHOD FOR ENCODING AND DECODING INTEGRAL IMAGES, DEVICE FOR ENCODING AND DECODING INTEGRAL IMAGES AND CORRESPONDING COMPUTER PROGRAMS - An encoder and method of encoding are provided for encoding at least one integral image representing at least one object in perspective in a scene and including a plurality of elemental images. The method of encoding includes generating a plurality of K sub-images on the basis of the plurality of basic images; arrangement of the sub-images in a predetermined pattern such as to form a multi-view image of the object, the views corresponding respectively to the sub-images; and adaptive compression of the multi-view image formed, as a function of the motion type of the object in the scene. | 03-27-2014 |
20150029566 | METHOD OF CODING A HOLOGRAPHIC PATTERN, A CORRESPONDING CODING DEVICE AND COMPUTER PROGRAM - A method for coding at least one holographic pattern recording a light signal representative of light received by a perspective object in a scene. The method includes: determining, from the light signal and for each point x | 01-29-2015 |
20150131741 | METHOD OF CODING AND DECODING INTEGRAL IMAGES, A DEVICE FOR CODING AND DECODING INTEGRAL IMAGES, AND CORRESPONDING COMPUTER PROGRAMS - A method is provided for encoding at least one integral image representative of at least one object in perspective in a scene. The method implements the following steps: applying a discrete wavelet transform directly to the pixels of the integral image, delivering a plurality of transform coefficients; and encoding the delivered transform coefficients. | 05-14-2015 |