561 results about "Color depth" patented technology

A method and apparatus for updating video graphics changes of a managed server to a remote console independent of an operating system. The screen (e.g. frame buffer) of the managed server is divided into a number of blocks. Each block is periodically monitored for changes by calculating a hash code and storing the code in a hash code table. When the hash code changes, the block is transmitted to the remote console. Color condensing may be performed on the color values of the block before the hash codes are calculated and before transmission. Compression is performed on each block and across blocks to reduce bandwidth requirements on transmission. Periodically, the configuration of a video graphics controller and a pointing device of the managed server are checked for changes, such as changes to resolution, color depth and cursor movement. If changes are found, the changes are transmitted to the remote console. The method and apparatus may be performed by a separate processor as part of a remote management board, a "virtual" processor by causing the processor of the managed server to enter a system management mode, or a combination of the two.

A method for forming an output stream of data includes determining an output resolution for the output stream of data, determining an output frame rate for the output stream of data, determining an output color depth for the output stream of data, retrieving a first frame of data, a second frame of data, and a third frame of data from an input stream of data, the input stream of data having an input resolution, an input frame rate, and an input color depth, subsampling the first frame of data, the second frame of data, and the third frame of data to respectively form a first subsampled frame of data, a second subsampled frame of data, and a third subsampled frame of data, when the output resolution is lower than the input resolution, dropping the second subsampled frame of data, when the output frame rate is lower than the input frame rate, reducing color depth for the first subsampled frame of data and the second subsampled frame of data to respectively form a first reduced frame of data and a second reduced frame of data, when the output color depth is smaller than the input color depth, and converting the first reduced frame of data and the second reduced frame of data into the output stream of data.

Described is a method and system for power management of mobile computer displays, in which areas of the screen are selectively controlled to consume less power than other areas. For example, a foreground window having focus may receive normal brightness, while background areas are dimmed. To this end, the pixels of selected areas are controlled to vary color depth, resolution, refresh rate, brightness and/or the on/off state for any part of the display. Power settings for parts of the display not corresponding to a focused window can be gradually reduced over time. Power policy may determine which areas are given reduced power, and external mechanisms provide information useful in the determination, such as when the user last interacted with a window, where the mouse is hovering, explicit user instructions as to how to power manage a window, and sensors that detect where the user is likely to want more power.

According to one embodiment, a computer program product for a system including a processor includes a tangible memory including code that directs the processor to determine an output resolution for an output stream of data, code that directs the processor to determine an output frame rate for the output stream of data, code that directs the processor to determine an output color depth for the output stream of data, code that directs the processor to retrieve a first frame of data, a second frame of data, and a third frame of data from an input stream of data, the input stream of data having an input resolution, an input frame rate, and an input color depth, code that directs the processor to subsample the first frame of data, the second frame of data, and the third frame of data to respectively form a first subsampled frame of data, a second subsampled frame of data, and a third subsampled frame of data, when the output resolution is lower than the input resolution are also included, code that directs the processor to remove the second subsampled frame of data, when the output frame rate is lower than the input frame rate, code that directs the processor to reduce color depth for the first subsampled frame of data and the second subsampled frame of data to respectively form a first reduced frame of data and a second reduced frame of data, when the output color depth is smaller than the input color depth, and code that directs the processor to convert the first reduced frame of data and the second reduced frame of data into the output stream of data.

The present invention relates to a technology that allows a user to manipulate a virtual three-dimensional (3D) object with his or her bare hand in a wearable augmented reality (AR) environment, and more particularly, to a technology that is capable of detecting 3D positions of a pair of cameras mounted on a wearable display and a 3D position of a user's hand in a space by using distance input data of an RGB-Depth (RGB-D) camera, without separate hand and camera tracking devices installed in the space (environment) and enabling a user's bare hand interaction based on the detected 3D positions.

The invention discloses a portable remote device that allows the user to access the Internet and World Wide Web. The portable device connects to a cellular telephone, thus providing wireless connection to the internet via a host computer which runs a browser, that takes information received from the Internet or other sources and renders it onto a virtual display in its memory. This information is directed to software, which reduces the color depth of the information to a lower depth color image. This reduced image is then compressed and encrypted by another software and sent to the portable device of the invention, which decrypts and decompresses it for displaying to the user. The browser may also reduces the color depth and compress the image without need for further software. Thus, the user views a bit map or raster image of a Web page, which is stored into memory. The portable device further comprises methods of pointing and clicking on text and images which represent links to other pages. Web pages with links may also be sent to the portable device, which stores them into memory to facilitate off-line viewing from the memory of the device. The user may also select desired links to each web page. Email messages may be retrieved manually or automatically at programmed times. Video frames and sound files may also be displayed on the portable device, with the aid of a buffer memory to facilitate uninterrupted playback.

A system for delivering coupons containing barcodes to a mobile device such as a mobile phone is disclosed. A message processor means (106) generates message data comprising a coupon. A message optimizer means (116) generates an optimized message responsive to the message data and the capabilities of the mobile device (124). Preferably the capabilities of the mobile device comprise device attribute associated with a mobile device type, and are stored in a database means (110). The optimized message is transmitted to the mobile device. For basic mobile devices, simple text message including barcode number and associated text will be delivered. Otherwise, subject to the mobile device supporting the required display dimensions and color depth, a barcode image, picture, and/or multimedia content will be delivered.

The invention provides a robot navigation map construction method based on rat brain hippocampus spatial cells. According to an information transfer loop of spatial navigation related cells in a hippocampus structure of a mammal, a robot acquires a current autonomic movement clue and color depth image information through environment exploration. The autonomic movement clue progressively forms coding to the spatial environment through path integration and characteristic extraction of the spatial cells in the hippocampus structure. The place field of place cells is gradually formed in an exploration process and furthermore covers the whole spatial environment, thereby forming a cognitive map. Meanwhile, Kinect acquires color depth image information of a view scene right in front of the current position as an absolute reference for performing closed-loop detection on the path and correcting a path integration error. At a closed-loop point, a system resets spatial cell discharging activity and performs correction on the path integration error. Nodes on a final navigation map comprise place cell mass coding information, corresponding visual cues and place topological relationships.

Filter media and filter structure or media pack can be engineered to exhibit high initial efficiency and to surface load particulate removed from a gaseous stream. The filter technology protects engine operation from ingested particulate and accumulates the particulate as a surface loaded layer visible on the surface of the structure. The particulate accumulates as a surface loaded layer until it achieves a certain depth of particulate or gray scale characteristic or color depth indicative of the end of the useful life of the filter prompting a change of the filter structure. The filter structure is characterized by its ability to surface load particulate, avoid accumulation of particulate in the depth media and enhance the characteristics of the material through surface loading. Such technology is particularly useful in light duty vehicle maintenance technology.

The invention discloses a portable device providing access to the Internet. A host computer runs a browser taking information received from the Internet, renders it onto a virtual display in memory, reduces the color depth, compress and sends it to the device. Thus, the user views a bit map or raster image of a Web page on the device, which also contains a browser software program, that runs on the device containing its own window. This window contains buttons or icons providing web functions and implements scrolling on the web page received with respect to the window. The windows of the browsers in the host computer and device are adjustable in size and may be set to match for text formatting. The size of the web page received from the Internet is the size sent to the device when converted to an image, which varies with each web page received.

The invention discloses a method for positioning a characteristic region representing a dark and light color and a color of a vehicle body, which comprises the steps of: determining a vehicle region according to a reference region of a vehicle in an acquired vehicle image; constructing an energy distribution function according to texture characteristics and structural characteristics of the vehicle region; and positioning the characteristic region used for representing the dark and light color and the color of the vehicle body by taking a point with maximum energy in the energy distribution function as a central point. The invention also provides a method for identifying the dark and light color of the vehicle body and a method for identifying the color of the vehicle body. The application of the method can reduce computation amount, quicken computation speed, and improve identification accuracy rate.

The invention discloses a pixel-level alignment algorithm for color images to depth images of a color depth camera. The pixel-level alignment algorithm comprises the steps of 1) determining an offset between an infrared image and a depth image, 2) calibrating the internal parameters of an infrared camera and a color camera, respectively, 3) calibrating relative postures between the infrared camera and the color camera, 4) calibrating the parameters of a depth camera model, 5) starting from one pixel point of the color image, finding out corresponding pixel points on the depth image by use of the internal and external parameters of an infrared image and a color image, thereby determining the depth of the pixel points of the color image. According to the pixel-level alignment algorithm, the corresponding depth information is directly obtained from the color image, the alignment of the color information to the depth information can be realized, a fusion image of a larger size can be obtained, and the information is richer.

Various embodiments of methods and systems for intelligent multimedia-based thermal power management implemented in a portable computing device (“PCD”) are disclosed. To reduce or increase power consumption in the PCD, embodiments adjust one or more visual multimedia parameters, the settings of which contribute to power consumption associated with an overall multimedia workload. The selection of visual multimedia parameters for setting adjustment is a function of the change in user experience versus the change in power consumption that will likely result from the setting adjustment. Exemplary visual multimedia parameters for which settings may be adjusted by certain embodiments include, but are not limited to, color depth, display brightness, GPU processing resolution, image dynamics algorithm selection, resolution scaling ratios and frames per second processing rates.

The embodiment of the invention discloses a terminal. The terminal comprises: a two-camera unit used for taking a picture and obtaining first depth information and first color information of the picture, a processor used for dividing the picture into a background region and a foreground region according to the first depth information of the picture obtained by the two-camera unit, and extracting second depth information and second color information of the edge of the foreground region, and performing stroke processing on the edge of the foreground region according to the direct proportion relationship of a depth value in the second color information and color depth in stroke processing and based on the second depth information and the second color information of the edge of the foreground region. The embodiment of the invention discloses a picture processing method.

The invention solves the problems such as feature extraction, asynchronization and synchronization, feature relevance and data difference value to fuse visual data and laser radar data so as to generate three-dimensional color depth image data, namely a three-dimensional color laser data point cloud, thereby providing precise distance information and rich environment information, effectively overcoming the defects of the traditional laser radar and the visual sensor in the aspects of robustness, information amount, precision and cost. The invention integrates a two-dimensional laser radar, a monocular vision sensor, an inertial navigation data measuring unit, a driving motor and the like into an information fusion-based three-dimensional color laser radar integral unit with universal applicability and high precision, and utilizes inertial navigation data and visual data to perform secondary alignment on laser radar data, the structure is simple, equipment does not need to be subjected to precise calibration, the performance is reliable and stable, the practicability is strong, and the method and the device can be widely used in various indoor and outdoor environments under the motion condition, and have certain universal applicability.

The invention discloses a three-dimensional reconstruction method of single object, based on a color depth camera. The three-dimensional reconstruction method of single object, based on a color depthcamera includes the three steps: 1) during the scanning process, extracting the scanned object area; 2) according to the color depth data, performing camera tracking and local fusion of the depth data, and performing global non rigid body registration on the locally fused data, and gradually constructing an overall three-dimensional model and the accurate key frame camera position; and 3) performing grid extraction on the fusion model, according to the obtained key frame camera position and the key frame color image, calculating the texture map of the three-dimensional grid model. The method framework of the three-dimensional reconstruction method of single object, based on the color depth camera can guarantee that even if the proportion of the object in the image is relatively smaller, geometrical reconstruction and texture mapping with high quality can still be performed when single object is reconstructed. The three-dimensional reconstruction method of single object, based on a color depth camera has the advantages of being clear, being high in speed, being robust in the result, and being able to be applied to the virtual reality scene construction field and the like.

The invention discloses a depth sensor-based method of establishing an indoor 3D (three-dimensional) semantic map. The method includes: using a depth sensor to acquire a color depth RGB-D image of an indoor environment to establish an indoor 3D map thereby; segmenting the acquired RGB-D image, and calculating color and shape features of the segmented RGB-D image to acquire corresponding semantic information; fusing the acquired semantic information and the indoor 3D map to obtain the indoor 3D semantic map. The method has the advantage that the method is suitable for establishing semantic information, such as structural semantic information and furniture semantic information, so as to facilitate a robot executing high-level intelligent operations.

Provided are a method and an apparatus for image processing. A scene includes a low resolution depth image and a high resolution color image. A depth image up-scaler up-scales the depth image using an interpolation so as to improve the resolution of the depth image. A color-depth similarity based filter removes noise from the up-scaled depth image using the color image and the up-scaled depth image. A boundary sharpening filter converts a boundary between objects in the up-scaled depth image into a clearer boundary. The resolution of the depth image may increase to the level of the resolution of the color image by means of the depth image up-scaler, the color-depth similarity based filter and the boundary sharpening filter, and the depth of each pixel in the depth image may be adjusted.

Digital images that are produced by an image forming device may be processed using an edge enhancement technique to reduce the effects of halftone color depth reductions. For each element in the original image, certain detail elements are classified by examining the magnitude of pixel intensity gradients between elements of interest in a first window applied at each element and other elements in the first window. If a first predetermined condition is satisfied, those elements locations are stored. After halftoning, a morphological filter may be applied to the same element locations in the halftone image to enhance the halftone image.

The invention discloses a portable remote device that connects wirelessly to the internet or other sources via a host computer which runs a browser, taking information received and renders it onto a virtual display in memory. This information is directed to software which reduces the color depth, compresses and sends it to the portable device, which decompresses and stores it into memory for displaying. The information captured and sent to the remote device is limited to the size of the browser's window, which may be considerably smaller than the image in the virtual display. The browser automatically scrolls to other parts of the image to capture it entirely, sending segments simultaneously to other software responsible for color depth reduction and compression, whilst it scrolls to other segments. The host computer keeps a record of credit card details for each user on file, hence there is no encryption required between the host and remote device, as the host automatically inserts credit card details from its database in the appropriate location for each credit card purchase over the Internet.