Abstract: A method for converting a standard dynamic range (SDR) sequence into a high dynamic range (HDR) sequence is described. The method includes determining (S1) successive shots in the SDR sequence by cut detection, detecting (S2) if the SDR sequence comprises a sub-sequence of at least two successive short shots having a duration lower than D1, said subsequence comprising at least one bright shot having a luminance and a size greater than L1 and SZ1 respectively, and mapping (S3) the luminance range of bright shots of the detected subsequence from the low dynamic range to a first high dynamic range and mapping the other shots of the SDR sequence from the standard dynamic range to a second high dynamic range in order to generate the HDR sequence, the first high dynamic range having a maximal value Lmax1 lower than that of the second high dynamic range Lmax2.

Abstract: A method and system are performed by a processor of an audio-visual device according to instructions stored in a memory of that device that determines identity of a content medium based upon attributes associated with it and a set of user-defined settings associated with the content medium. The processor identifies a set of source-defined settings for configuring the device and selects one set of user-defined settings or the set of source-defined settings for configuring the audio-visual device. In addition, the processor determines if preexisting attributes exist that if it has to override the set of user-defined settings. It then configures one of the set of user-defined or overrides the settings. All channels from a particular network provider utilize the same set of user-defined settings, including channels that have not been visited by a user and future channels that have not yet been created.

Abstract: An aspect of present principles is directed to methods, apparatus, systems and computer readable media for image processing. The image processing may include receiving a standard dynamic range (SDR) image or a receiver for receiving a standard dynamic range (SDR) image. It may further include determining an over-exposed region of the SDR image and determining a corrected luminance value for at least a pixel of the over-exposed region, or a processor configured to determine an over-exposed region of the SDR image and a corrected luminance value for at least a pixel of the over-exposed region. The corrected luminance value is determined based on at least one of a shape of the over-exposed region, luminance information of pixels surrounding the over-exposed region, and edge information of the pixels surrounding the over-exposed region. The over-exposed region may be an irregularly shaped region.

Abstract: Methods and apparatus are provided for encoding and decoding binary sets using adaptive tree selection. In one exemplary encoding method embodiment, picture data is encoded for a block in a picture; in which one of a plurality of trees structures is selected to code a binary set of data for indicating coefficient significance for the block. In another exemplary encoding method embodiment, picture data is encoded for a block in a picture, in which one or more trees are used to encode a binary set of data for indicating coefficient significance for the block, the one or more trees each having a plurality of nodes, at least one of the nodes of the one or more trees being modified responsive to at least one parameter.

Abstract: A method and apparatus for position decoding of three dimensional mesh models are described including predicting a symbol probability of a non-empty-child-cell Cl,k, where Cl,k denotes the kth cell at layer l, wherein the symbol probability is estimated based on an accuracy of a fitted plane P, decoding the non-empty-child-cell responsive to the received predicted probability of the non-empty-child-cell, subdividing the non-empty-child-cell, if the non-empty-child-cell has more than one vertex, determining if there are more unprocessed non-empty-child-cells at layer l, determining if a lowest layer of non-empty-child-cells has been reached, if there are no more unprocessed non-empty-child-cells at layer l and regenerating the three dimensional mesh model, if the lowest layer of non-empty-child-cells has been reached.

Abstract: A method and apparatus for delivering content via adaptive streaming technique over multiple communication paths between a client and a server are described. The method includes measuring a first, and respectively a second, available bit rate on the first, and respectively second, path, determining a requested bit rate from the measured first and second available bit rates, sending a first request via the first path for receiving a first part of the chunk of content identified by the time index i and by the requested bit rate and a second request via the second path for receiving a second part of the chunk of content, the first and second chunks of content being complementary, the size of each of the chunks being computed from the available bit rate and receiving the requested first, and respectively second, part via the first, and respectively second, path.

Abstract: In a particular implementation, a user environment space for haptic feedback and interactivity (HapSpace) is proposed. In one embodiment, the HapSpace is a virtual space attached to the user and is defined by the maximum distance that the user's body can reach. The HapSpace may move as the user moves. Haptic objects and haptic devices, and the associated haptic properties, may also be defined within the HapSpace. New descriptors, such as those enable precise locations and link between the user and haptic objects/devices are defined for describing the HapSpace.

Abstract: An optical see-through glass type display device comprises: an optical unit having a front correcting surface and a rear correcting surface; an image projector projecting a virtual image; and an image sensor for capturing an ambient scene image. The optical unit is configured to guide light of the ambient scene image coming through the front correcting surface to the image sensor and to guide light of the virtual image so that the light of the virtual image outgoes through the rear correcting surface. A first optical compensation element is located between the optical unit and the image sensor and a second optical compensation element is located between the image projector and the optical unit. The device further comprises a processing module configured to analyze the ambient scene image captured by the image sensor.

Abstract: A user inputs a password at a user device whose processor receives the password, retrieves a stored derived value resulting from a derivation function, preferably a cryptographic one-way function, applied to a reference password, scrambles the received password using a function taking the derived value as a variable to obtain a scrambled password, and sends the scrambled password to an authentication server. In case the stored derived value cannot be retrieved, the processor uses the derivation function to generate a derived value from the received password. In case the password is received during generation of a new password, the processor generates and stores a derived value from the new password. In an embodiment, the apparatus comprises the authentication server.

Abstract: A method for generating labels for an image of low quality is described. The method includes mapping image data and depth information of said image to a 3D point cloud; segmenting the 3-D point cloud and the image into super voxels and image patches, fusing features obtained from the super voxels and image patches, by using a fusion model, applying classifiers to fused features, wherein the fusion model and the classifiers are generated from a dataset including image data of selected quality and quantity, corresponding point cloud and image labels, and generating scene labels based on applied classifiers.

Abstract: An apparatus and method is presented for receiving and displaying user messages associated with multimedia content. Specifically, the present invention is directed to controlling the operation of a television recording/playback system to permit a user to input a message, associate that message with a selected television program, and display the associated message when the selected television program is accessed by another user (see FIG. 1). The apparatus of the present invention is directed to a system for managing multimedia content including devices for storing television programs and associating with those programs user-generated messages for display to other system users. In this way, the present invention provides content management tools that promote sharing by all users, ease the process of establishing a consensus for managing limited resources, and encourage monitoring by the administrator.

Abstract: In one embodiment, it is proposed a method for storing input data on a set of DNA strands, said input data being represented in a numeral system. This method is remarkable in that it comprises: formatting said input data into a set of blocks of data, each block of data having a size inferior to a size of one DNA strand; applying a first encoding with an erasure code on said set of blocks of data, defining a first set of modified blocks of data, each modified block of data having a size inferior to a size of one DNA strand; applying a second encoding using an error correcting code on each modified block of data of said first set, defining a second set of modified blocks of data, each modified block having a size inferior to a size of one DNA strand; encoding each modified block of data of said second set into a nucleotides block sequence; generating a set of DNA strands, each DNA strand comprising a nucleotides block sequence obtained through said encoding.

Abstract: An image sensor unit (3) includes a microlens array (31) and a sensor (32). The sensor includes a plurality of sensor regions (323) that respectively include pixels (322) having different sensitivities arranged in a matrix arrangement. The pixels (322) at corresponding positions of the plurality of sensor regions (323) have identical sensitivities. Each of the microlenses (311) of the microlens array (31) is arranged to direct the light to a corresponding one of the plurality of sensor regions (323) of the sensor (32).

Abstract: A device and a method for authorizing access to a service on a first device upon detection of a second device located in near proximity, while preferably using broadcast transmission, is disclosed. The second device broadcasts on a second broadcast network a message comprising at least a group identifier common to the set of devices that can access the service and a time reference value corresponding to the emission time of the message, according to a common time reference received by all devices from a first broadcast network. The first device authorizes access to the service only if the group identifier received from the message is the same as the group identifier of the device and if the delay between the measured arrival of the message and its emission time is lower than a threshold.

Abstract: An assembly of two or more heatspreaders is attached to a printed circuit board in a compact electronic enclosure. The heatspreaders include fins which assist in convecting heat out of the enclosure through vents. The printed circuit board is shielded from the outer case by the heatspreaders.

Abstract: There are several types of plenoptic devices and camera arrays available on the market, and all these light field acquisition devices have their proprietary file format. However, there is no standard supporting the acquisition and transmission of multi-dimensional information. It is interesting to obtain information related to a correspondence between pixels of a sensor of said optical acquisition system and an object space of said optical acquisition system. Indeed, knowing which portion of the object space of an optical acquisition system a pixel belonging to the sensor of said optical acquisition system is sensing enables the improvement of signal processing operations. The notion of pixel beam, which represents a volume occupied by a set of rays of light in an object space of an optical system of a camera along with a compact format for storing such information is thus introduce.

Abstract: With quantization index modulation QIM it is possible to achieve a very high data rate, and the capacity of the watermark transmission is mostly independent of the characteristics of the original audio signal, but the audio quality suffers from degradation with each watermark embedding-and-removal step. In order to avoid degradation of the audio quality, the inventive audio signal watermarking uses specific quantizer curves in time domain and in particular in frequency domain for embedding the watermark message into the audio signal, whereby the processing is almost perfectly reversible. Furthermore, it has embedded a power constraint in order to guarantee that the modifications of the audio signal due to the watermark embedding are inaudible.

Abstract: A cryptographic hash value is computed in a hardware processing unit of an apparatus. The cryptographic hash value is computed iteratively processing blocks of data in a predetermined order by, for each block: obtaining at least one intermediate value for the block by applying a function to the block, computing a value of a weight function, and updating at least one hash variable with a corresponding intermediate value only if the value of a weight function is equal to at least one predetermined value. The processing unit then generates the cryptographic hash value from the at least one hash variable.

Abstract: A method for controlling data throughput of a public user at a subscriber access point, including determining if the public user has established a connection at the subscriber access point, measuring the physical layer data rate of the public user retrieving a maximum channel usage time limit and limiting an amount of data transferred on a per unit of time basis responsive to the measured physical data rate and the maximum channel usage time limit.

Abstract: Methods and apparatus are provided for adaptive motion vector candidate ordering for video encoding and decoding. An apparatus includes a video encoder (100) for encoding a block in a picture by selecting an order of motion vector predictor candidates for the block responsive to a characteristic available at both the video encoder and a corresponding decoder. The characteristic excludes a mode in which the block is partitioned.