172 results about "Mapping techniques" patented technology

A multi-function robotic device may have utility in various applications. In accordance with one aspect, a multi-function robotic device may be selectively configurable to perform a desired function in accordance with the capabilities of a selectively removable functional cartridge operably coupled with a robot body. Localization and mapping techniques may employ partial maps associated with portions of an operating environment, data compression, or both.

Vehicle-mounted device includes an inertial measurement unit (IMU) having at least one accelerometer or gyroscope, a GPS receiver, a camera positioned to obtain unobstructed images of an area exterior of the vehicle and a control system coupled to these components. The control system re-calibrates each accelerometer or gyroscope using signals obtained by the GPS receiver, and derives information about objects in the images obtained by the camera and location of the objects based on data from the IMU and GPS receiver. A communication system communicates the information derived by the control system to a location separate and apart from the vehicle. The control system includes a processor that provides a location of the camera and a direction in which the camera is imaging based on data from the IMU corrected based on data from the GPS receiver, for use in creating the map database.

A system for efficiently distributing messages to a server farm uses a hashing function and a map-based function, or combinations thereof, to distribute messages associated with a processing request. In one implementation, for example, the hashing function has inputs of an identifier for each message in a processing request, and a list of available servers. Upon identifying that any of the servers is unavailable, or will soon be unavailable, the load balancing server uses an alternate map-based assignment function for new requests, and inputs each assignment into a server map. The load balancing server can then use the map or the hashing function, as appropriate, to direct messages to an operating server. Upon receiving an updated list of available servers, the load balancing server can switch back to the hashing function after the map is depleted, and use the updated server list as an argument.

Video processing techniques and pipelines that support capture, distribution, and display of high dynamic range (HDR) image data to both HDR-enabled display devices and display devices that do not support HDR imaging. A sensor pipeline may generate standard dynamic range (SDR) data from HDR data captured by a sensor using tone mapping, for example local tone mapping. Information used to generate the SDR data may be provided to a display pipeline as metadata with the generated SDR data. If a target display does not support HDR imaging, the SDR data may be directly rendered by the display pipeline. If the target display does support HDR imaging, then an inverse mapping technique may be applied to the SDR data according to the metadata to render HDR data for display. Information used in performing color gamut mapping may also be provided in the metadata and used to recover clipped colors for display.

Methods and apparatus are provided for mapping XML source documents to target documents using schema embeddings. According to one aspect of the invention, one or more edges in the one or more source schemas are mapped to one or more paths in at least one target schema. The disclosed mapping techniques ensure that (i) one or more source documents that conform to one or more of the source schemas can be recovered from one or more target documents that conform to the at least one target schema, if a mapping exists between the one or more of the source schemas and the at least one target schema; (ii) queries on one or more source documents that conform to one or more of the source schemas in a given query language can be answered on one or more target documents that conform to the at least one target schema; and (iii) the one or more target documents conform to a target schema.

An improved theater geometry which is capable of providing improved image resolution and improved image contrast over prior systems is achieved with a unique projection geometry and image re-mapping technique. The projected image is provided with a continuously variable image resolution and brightness over the surface of a preferably dome-shaped screen which is to receive the image, concentrating the resolution and the brightness of the image within the central field-of-view of viewers that are unidirectionally seated in the theater, and sacrificing resolution and brightness toward the outside edges of the viewers' field-of-view. The result is a more efficient use of available projector resolution and brightness, an increase in the number of quality seats available in the theater, and an enhanced image contrast due to reductions in the light which is scattering from image elements to the rear of the screen.

Layout correction is accomplished using a forward mapping technique. Forward mapping refers to mapping of fragments from a reticle layout to a target layout, while backward mapping refers to mapping of fragments from the target layout to the reticle layout. Forward mapping provides a technique for making an unambiguous mapping for each reticle fragment to a corresponding target layout fragment. The mapping does not necessarily provide a one-to-one correspondence between reticle fragments and target layout fragments. That is, multiple reticle layout fragments can map to a single target layout fragment. An edge placement error for the target layout fragments is used to make positioning corrections for the corresponding reticle fragment(s). Edge placement error can be determined, for example, with a simulation process that simulates a manufacturing process using the reticles.

Graphics software renders polygons with texture using an improved MIP mapping technique in which texels from multiple MIP maps are blended together. The software renders the pixels in a polygon and selects texture elements ("texels") from an appropriate texture map to be applied to the pixels. The software further generates texel coordinate values to select texel values from a set of texture maps, each map varying from the others by the level of detail of the texture. The software then computes a scale factor for each texel value according an area bounded by adjacent texel coordinates. In one embodiment, vectors are defined for each the adjacent texels and the area is determined from the magnitude of the cross product of the vectors. The scale factor is then used to compute a weighted average of texels from one or more MIP maps. Further, for certain area values, no averaging occurs or, alternatively, the scale factor is set to 1.0.

Disclosed is a non-equal probability constellation labeling method based on an absolute phase shift keying (APSK) constellation diagram. The non-equal probability constellation labeling method based on the APSK constellation diagram is characterized by comprising the steps that: the APSK constellation diagram is constructed, number of steps of the constellation labeling is M, M=2m, and m is a positive integer, numbers of constellation points on each ring is the same, phase deviations of each ring are also the same; a constellation labeling mode of the APSK constellation diagram is designed, and the constellation labeling mode is enabled to be a gray labeling; the constellation points are grouped, and constellation points on the same ring are combined to be a new constellation point; labeling bits of the prior constellation points on the same ring are distributed to the new constellation point in sequence. According to the non-equal probability constellation labeling method based on the APSK constellation diagram, the inhomogeneous constellation diagram and a non-equal probability labeling technology are adopted, distribution of output signals of the constellation labeling is enabled to be close to Gaussian distribution, shaping gain is achieved, performance of a coded modulation system is improved, and signal to noise ratio in a modulation process is reduced.

Spherical-like textures are useful to simulate reflections and to generate arbitrary views from a point. For addressing simplicity, graphics systems typically require rectangular arrays of texture samples but an infinite variety of functions can be used to map these samples to a sphere-like object. A new metric is presented for measuring how well various maps use a given number of samples to provide the greatest worst-case frequency content of the image everywhere over the sphere. Using this metric and other important local properties, a comparison is presented of maps used previously in computer graphics as well as other mapping techniques borrowed from cartography. Based on these analysis several novel mapping techniques are presented that are fairly simple to implement and significantly more efficient in terms of the amount of processing and data required, and the quality of the resulting images. The novel metric and mapping techniques can be employed to analyze or otherwise improve the sampling efficiency of mapping textures onto any three-dimensional surface.

Active directory (AD) Domain Controllers (DC) discovery includes determining the topology of the network, such as the nodes and connections in the network. For example, synthetic data may be transferred within the network and traced to determine the presence and relationships of the various network components. Alternatively, other mapping techniques are based upon mapping a known set of nodes to determine the relationship of the nodes. Next, Lightweight Directory Access Protocol (LDAP) commands are forwarded to the various nodes to identify the AD DC within a range of IP addresses discovered during the mapping of to the topology of the network.

A method and apparatus for permitting a resource to be locally stored by any one of a plurality of programs (that use different first resource identifies) using a resource identifier mapping technique that makes the resource accessible to any local or remote program. To that end, a store request relating to the resource from one of the plurality of programs is received. The store request identifies the resource with a first resource identifier associated with the one of the plurality of programs. The first resource identifier is mapped to a global resource identifier having a standard format. The resource is then permitted to be stored based on the global resource identifier. In response to a retrieve request with a first resource identifier for the resource, the resource is retrievable via the global resource identifier. The retrieve request may be made by any one of the plurality or programs.

The Space-Time Mapping Analysis (STMA) method and system provides an engineering method and/or system for modeling and/or analyzing and/or designing and/or building and/or operating complex physical processes, components, devices, and phenomena. STMA can be used in a way for modifying and/or improving the design of many different products, components, processes, and devices, for example. Any physical system, whether existing or proposed, which exhibits, for example, unsteady flow phenomena, might be modeled by the STMA. Thus, STMA can be implemented as a part of an engineering system for design improvements and/or modifications and/or evaluations. The STMA system and/or method uses a space-time mapping technique wherein the space and time directions are treated in an equivalent way, such that, rather than solving a three-dimensional unsteady problem by sweeping in the time direction from an initial point in time to a final point in time, the problem is solved as a four-dimensional problem in space-time.

Vehicle-mounted device includes an inertial measurement unit (IMU) (8) having at least one accelerometer or gyroscope, a GPS receiver (6), a camera (10) positioned to obtain unobstructed images of an area exterior of the vehicle (16) and a control system (20) coupled to these components. The control system (20) re-calibrates each accelerometer or gyroscope using signals obtained by the GPS receiver (6), and derives information about objects in the images obtained by the camera (10) and location of the objects based on data from the IMU (8) and GPS receiver (6). A communication system (18) communicates the information derived by the control system (20) to a location separate and apart from the vehicle (16). The control system (20) includes a processor that provides a location of the camera (10) and a direction in which the camera (10) is imaging based on data from the IMU corrected based on data from the GPS receiver (6), for use in creating the map database (12). (FIG. 2)

A method of building an application response message can include receiving a master file specifying a message format for populating a particular data object of an application. The master document can specify element names which correspond to fields of the data object. A technique for mapping particular data items specified by at least one flat file to the element names specified in the master file can be determined; and a markup language representation of the data object can be generated according to the determined mapping technique and the specified message format.

A method of operating a switch for frames in a computer network uses one or more indicia of frame type designation found in the received frame to derive a virtual local area network (derived VLAN) value. Also, an indicia of the receiving port may be used in constructing the derived VLAN value. The switch then uses the derived VLAN value in making forwarding decisions. Broadcast domains in the computer network may then be controlled by forwarding in response to the derived VLAN value.

Techniques for augmenting an appearance of a first object. Embodiments include capturing a visual scene for display. Here, the visual scene includes a physical object and wherein the visual scene is captured using one or more camera devices. The physical object is identified as a first predetermined object type, based on one or more object identifiers associated with the physical object. Embodiments also retrieve visual characteristics information corresponding to the first predetermined object type. A sequence of frames that includes the first object is then rendered for display, where the appearance the first object in the rendered sequence of frames is augmented based on the retrieved visual characteristics information and an appearance of the physical object in the captured visual scene.

A method for generating candidate used in TCOFDM (turbo coded orthogonal frequency-division multiplexing) with SLM (selective mapping) technique, a user data is combined with a plurality of seeds to generate corresponding a plurality of message vectors. The method is characterized in performing tail-biting turbo encoding on the message vectors to generate corresponding turbo codewords used for generating candidates, and the seed of each message vector is different from the seeds of other message vectors.

The embodiment of the invention discloses a method and a base station for indicating a modulation encoding scheme during multi-user joint mapping. The method comprises the following steps: determininga master call user of the multi-user joint mapping; when the master call user is a remote user, determining a near-end user of the multi-user joint mapping; and indicating the modulation encoding scheme of the master call user and the near-end user. The embodiment of the method can improve the utilization ratio of system scheduling to a frequency spectrum resource of the remote user by adopting the multi-user joint mapping technology, and improve the downlink throughput of the whole system simultaneously by adopting a method for hierarchical scheduling.