Abstract: A positioning system and method includes a transmitter, a receiver, and a controller. The transmitter includes at least one energy source configured to emit an optical or quasi-optical electromagnetic signal as a channel communication. The receiver includes at least one detector element configured to receive the channel communication. The controller is connected to the receiver and configured to estimate a position of the transmitter within a space using a reference map of the space and one or more diffuse components of an impulse response of the channel communication.

Abstract: The purpose of the present invention is to provide an optical/RF wireless hybrid communication system and a control method capable of solving the instability of link conditions of an RF wireless link and an optical wireless link. In the optical/RF wireless hybrid communication system and the control method according to the present invention, links for data transmission are not limited to one of an RF wireless link and an optical wireless link, the quality of link conditions is determined from signal quality received through channels of both the RF wireless link and the optical wireless link, and the distribution of data to be transmitted through the respective links is determined on the basis of the determination result. Thus, the links can be flexibly switched depending on the transmission conditions such as disturbance.

Abstract: The present application provides a medical imaging method and system and a non-transitory computer-readable storage medium. The medical imaging method comprises obtaining an original image acquired by an X-ray imaging system, and post-processing the original image based on a trained network to obtain an optimized image after processing.

Abstract: There is provided an image processing apparatus including an input device configured to receive a stroke input, and a display controller configured to control a displaying of a modified stroke, wherein the modified stroke is synthesized based on characteristic parameters of the received stroke input and characteristic parameters of a reference stroke that has been matched to the received stroke input.

Abstract: Embodiments of the disclosure pertain to a system for transferring an optical signal from one photonics chip or integrated circuit (PIC) to another. The system includes a first PIC having (i) an optical emitter or optical transmission mechanism and (ii) a focusing mirror thereon, and a second PIC having an optical receiver and a reflecting mirror thereon. The reflecting mirror is configured to reflect light transmitted by the optical emitter or optical transmission mechanism back to the first PIC. The focusing mirror is configured to (i) further reflect the light reflected by the reflecting mirror and (ii) focus the further reflected light on the optical receiver. Methods of using and manufacturing the system are also disclosed.

Abstract: An electronic apparatus includes a communicator circuitry, and a processor for obtaining multimedia data from an external apparatus via the communicator, identifying an object in at least one frame from among a plurality of frames included in the multimedia data, and identify a content corresponding to the identified object based on content guide information provided from a first server.

Abstract: Methods for configuring an optical link with an optimized spectral efficiency are provided. In these methods, a controller of an optical network obtains a baseline configuration that includes a traffic mode that uses a predetermined channel spacing of a plurality of channels in a frequency spectrum. The plurality of channels is used for transmitting optical signals on an optical link in the optical network. The controller further converts the SNR-margin to a Q-margin threshold value associated with a Q-margin as a performance parameter and while maintaining the performance parameter with a predetermined range of the Q-margin threshold value, varies at least one transmission parameter to reduce channel spacing. The controller also generates a spectral frequency map in which the channel spacing is reduced with respect to the baseline configuration and configures, via an optical network element in the optical network, the optical link based on the spectral frequency map.

Abstract: An electronic device is provided. The electronic device may include at least one processor, and at least one memory. The at least one processor may be configured to execute the instructions stored in the at least one memory, to: acquire an input image, predict an inverse function of a monotonically increasing function for decreasing an image contrast ratio by applying the input image to a learning model trained by using an artificial intelligence algorithm, and acquire an output image based on the input image and the predicted inverse function of the monotonically increasing function. The learning model may be trained to predict the inverse function of the monotonically increasing function for decreasing the an image contrast ratio by using a training image generated by applying a target image having a high contrast ratio to the monotonically increasing function and the inverse function of the monotonically increasing function as training data.

Abstract: In some examples, an optical node includes transition logic to: receive an indication of a data channel to be added across an optical medium, the data channel to occupy a portion of an optical spectrum; in response to a receipt of the indication, divide the data channel into a plurality of sub-channels; and sequentially add each of the plurality of sub-channels across the optical medium in a particular order.

Abstract: The present disclosure relates to a method for compensating an image. The method comprises estimating transform coefficients of a frequency component for a first image based on the first image, performing a dot multiplication operation between the estimated transform coefficients and a basis function associated with the frequency component to generate a compensation image, and combining the first image and the compensation image to generate a combined image.

Abstract: Systems, devices, media, and methods are presented for segmenting an image of a video stream with a client device, binarizing an area of interest within one or more image, identifying an initial pupil location and an initial iris radius, and determining a final pupil location and a final iris radius. Some embodiments enable the client device to perform one or more operations within a user interface based on the image segmentation.

Abstract: The present disclosure provides a method and a system for enhancing an image, and a computer readable storage medium. The method includes: obtaining coding information, histogram distribution information, and a signal characteristic parameter of a display content of the image after detecting a frame signal of the display content (S1); querying a preset first Look-Up-Table (LUT) according to the coding information of the display content to obtain a corresponding control parameter (S2); processing the histogram distribution information according to the control parameter and the signal characteristic parameter to obtain a processed histogram distribution information (S3); obtaining an average product length (APL) control value according to the processed histogram distribution information (S4); and enhancing the image according to the APL control value (S5). Compared with the related arts, the present disclosure improves the image display effect and the user experience without increasing the hardware cost.

Abstract: Methods and systems for image denoising when displaying high-dynamic-range images are described. Given an input image in a first dynamic range, and an input backward reshaping function mapping codewords from the first dynamic range to a second dynamic range, wherein the second dynamic range is equal or higher than the first dynamic range, statistical data based on the input image and the input backward reshaping function are generated to estimate the risk of noise artifacts in a target image in the second dynamic range generated by applying the input backward reshaping function to the input image. Using a measure of the variance in codeword bins in histograms of consecutive input frames (denoted as temporal histogram variance), a modified backward reshaping function is generated, which when applied to the input image to generate the target image eliminates or reduces noise artifacts in the target image.

Abstract: A deposit detection device according to an embodiment includes an extraction module and an exclusion module. The extraction module extracts a candidate region for a deposit from a captured image captured by an imaging device. The exclusion module excludes from the candidate region a region that satisfies a predetermined exception condition. The exclusion module excludes from the candidate region a region that satisfies a first exception region when adhesion of a deposit to the imaging device is not detected, and excludes from the candidate region a region that satisfies a second exception condition different from the first exception condition when adhesion of the deposit to the imaging device is detected.

Abstract: Systems and methods for mapping optical connections in an FDH are disclosed. An example system includes an FDH and a computing device. The FDH includes a bulkhead having: a plurality of passive optical couplers each having a respective first port to receive a respective first optical fiber, a respective second port to receive a respective second optical fiber, and a respective passive optical activity indicator configured to expose first light propagating in the respective first optical fiber, and second light propagating in the respective second optical fiber; and an image sensor configured to capture one or more images of the plurality of passive optical activity indicators. The computing device configured to, based on the one or more images, determine which of the plurality of passive optical couplers are receiving a first optical signal at their respective first port and/or receiving a second optical signal at their respective second port.

Abstract: The present disclosure relates to image processing apparatus and method that can suppress a reduction of subjective image quality. A process related to hiding of predetermined data with respect to data regarding an image is executed, and hiding is skipped in a case where data in a spatial domain of the image is to be encoded. The data regarding the image for which the hiding is performed or the data regarding the image for which the hiding is skipped is encoded. The present disclosure can be applied to, for example, an image processing apparatus, an image encoding apparatus, an image decoding apparatus, and the like.

Abstract: A configurable wide area distributed antenna system is provided. At least one remote master unit of the system is in communication with at least one base station. The remote master unit includes a remote switch function that provides at least multiplexing in a downlink direction, demultiplexing in an uplink direction and routing of digital samples. The local master unit is located remote from the remote master unit. The local master unit is in communication with at least one remote antenna unit used to provide communication coverage in a select coverage area. The local master unit includes a local switch function providing at least demultiplexing in a downlink direction, multiplexing in an uplink direction and routing of digital samples. At least one communication link communicatively couples the remote master unit to the local communication unit with transport media interfaces.

Abstract: A system and method are provided for registering source and target images. The method includes receiving a first source image and a first scanned image. The first scanned image is one that has been generated by scanning a printed page that has been generated by printing the first source image or a transformed first source image derived from the first source image. Locations of corners of a target image in the first scanned image are identified. With a first computed transform, the corners of the target image in the first scanned image are aligned to corners of the first source image to generate an aligned target image. Local features in the source image and aligned target image are detected. A second transform is computed to align the target image with the first source image, based on the detected local features.

Abstract: An electronic apparatus includes a communicator circuitry, and a processor for obtaining multimedia data from an external apparatus via the communicator, identifying an object in at least one frame from among a plurality of frames included in the multimedia data, and identify a content corresponding to the identified object based on content guide information provided from a first server.

Abstract: An image coding method comprising: obtaining current signals to be coded of each of the processing units of the image; generating a binary signal by performing binarization on each of the current signals to be coded; selecting a context for each of the current signals to be coded from among a plurality of contexts; performing arithmetic coding of the binary signal by using coded probability information associated with the context selected in the selecting; and updating the coded probability information based on the binary signal, wherein, in the selecting, the context for the current signal to be coded is selected, as a shared context, for a signal which is included in one of a plurality of processing units and has a size different from a size of the processing unit including the current signal to be coded.