Abstract: The present disclosure relates to a method for image patch selection for training a neural network for image quality assessment. The method includes receiving an input image and extracting one or more image patches from the input image. The moment of the extracted image patches is measured. There is a decision to accept or decline the extracted image patches according to the measured moment. Additional image patches are extracted until a minimum number, Nmin, of extracted image patches are accepted. Alternatively, selection criteria are adjusted until the minimum number of extracted image patches are accepted. The selected image patches are input into a neural network with a corresponding image quality value of the input image, and the neural network is trained with the image patches and image quality value. Also provided is a method for image quality assessment using a neural network trained as set forth above.

Abstract: A method and apparatus for converting a standard dynamic range (SDR) video to a high dynamic range (HDR) video. The conversion is adaptive and takes both spatial and temporal information of a current frame and previous frames into consideration such that the majority of pixels falls into the most sensitive regions of human eyes in the target dynamic range, while at the same time, the continuity of luminance is maintained in temporal domain to prevent flickering.

Abstract: An intelligent method and system for expanding and enhancing the color content of video or image to a wider color gamut to make the displayed video or image more pleasing while certain important and sensitive colors such as skin colors are preserved to avoid the perception of visually unnatural image or video artifacts. With the implementation of such method and system, the merits of the wide color gamut display can be fully utilized to provide videos and images of high visual quality.

Abstract: A method and apparatus for converting a standard dynamic range (SDR) video to a high dynamic range (HDR) video. The conversion is adaptive and takes both spatial and temporal information of a current frame and previous frames into consideration such that the majority of pixels falls into the most sensitive regions of human eyes in the target dynamic range, while at the same time, the continuity of luminance is maintained in temporal domain to prevent flickering.

Abstract: An intelligent method and system for expanding and enhancing the color content of video or image to a wider color gamut to make the displayed video or image more pleasing while certain important and sensitive colors such as skin colors are preserved to avoid the perception of visually unnatural image or video artifacts. With the implementation of such method and system, the merits of the wide color gamut display can be fully utilized to provide videos and images of high visual quality.

Abstract: An optical modulator may include at least one ground electrode. The optical modulator may include at least one signal electrode parallel to the at least one ground electrode. The optical modulator may include at least one waveguide parallel to the at least one ground electrode and the at least one signal electrode. The optical modulator may include a first substrate disposed underneath the at least one ground electrode and the at least one signal electrode relative to a surface of the optical modulator. The optical modulator may include a second substrate disposed underneath at least a portion of the first substrate relative to the surface of the optical modulator. The optical modulator may include a floating conductor disposed between the first substrate and the second substrate.

Abstract: An optical modulator may include at least one ground electrode. The optical modulator may include at least one signal electrode parallel to the at least one ground electrode. The optical modulator may include at least one waveguide parallel to the at least one ground electrode and the at least one signal electrode. The optical modulator may include a first substrate disposed underneath the at least one ground electrode and the at least one signal electrode relative to a surface of the optical modulator. The optical modulator may include a second substrate disposed underneath at least a portion of the first substrate relative to the surface of the optical modulator. The optical modulator may include a floating conductor disposed between the first substrate and the second substrate.

Abstract: A method for distributed video transcoding consists of segmentation process 101, transcoding process 102 and combining process 103. The said segmentation process consists of time division based segmentation 201, spatial division based segmentation 301 and hybrid segmentation 401. The source media is segmented into a number of media segments. These segments are distributed to different processing units 501. Each processing units consists of source reception unit 502, segmentation unit 503, transcoding unit 504, combining unit 505 and finally result storage unit 506 to achieve parallel conversion throughout the process and combined to produce a single transcoded result. The present invention relates to converting an audio-video source media from one format to another within a short duration of time.

Abstract: The disclosure provides a solution for clash detection in three-dimensional design by allowing multiple members to work on a centrally-located version of the model. The disclosure also provides massively-parallel processing of the design file which enables rapid processing and version control. The model can be maintained at one or more remote servers with significantly higher processing capability. Implementing clash detection on the remote server allows the system to take advantage of parallel processing. Complex 3D models can be identified and divided across multiple computational units to significantly increase processing speed.

Abstract: A radio frequency (RF) interconnect for an optical modulator may comprise a circuit board to route a set of RF signals from a corresponding set of RF feeds to a substrate interface on a surface of a substrate of the optical modulator. The circuit board may be positioned along the surface of the substrate of the optical modulator. The circuit board may include a set of traces. A trace, of the set of traces, may be connected to a corresponding RF feed, of the set of RF feeds, at a height different than a height of the surface of the substrate of the optical modulator. The trace may be connected to the substrate interface.

Abstract: A method and system for tracking use of audio and audiovisual works is described. Known are converted into a time series of frequency domain signatures. As the system detects unknown works transmitted or otherwise available for analysis, the unknown works are converted into a time series of frequency domain signatures and then the sequence of signatures matched in the database of known works. When a known work is found to have signatures that meet a matching test with an unknown work, a database is updated to reflect that the unknown work is an instance of the known work. The system includes a remote detector that receives unknown content and generates signatures that are transmitted to another location for where the matching is performed.

Abstract: Provided herein are systems and methods for operating a traveling wave linear accelerator to generate stable electron beams at two or more different intensities by varying the number of electrons injected into the accelerator structure during each pulse by varying the width of the beam pulse, i.e., pulse width.

Abstract: The disclosure relates to systems and methods for interleaving operation of a standing wave linear accelerator (LINAC) for use in providing electrons of at least two different energy ranges, which can be contacted with x-ray targets to generate x-rays of at least two different energy ranges. The LINAC can be operated to output electrons at different energies by varying the power of the electromagnetic wave input to the LINAC, or by using a detunable side cavity which includes an activatable window.

Abstract: Provided herein are systems and methods for operating a traveling wave linear accelerator to generate stable electron beams at two or more different intensities by varying the number of electrons injected into the accelerator structure during each pulse by varying the width of the beam pulse, i.e., pulse width. The electron beams may be used to generate x-rays having selected doses and energies, which may be used for cargo scanning or radiotherapy applications.

Abstract: Provided herein are systems and methods for operating a traveling wave linear accelerator to generate stable electron beams at two or more different intensities by varying the number of electrons injected into the accelerator structure during each pulse by varying the electron beam current applied to an electron gun. The electron beams may be used to generate x-rays having selected doses and energies, which may be used for cargo scanning or radiotherapy applications.

Abstract: The disclosure relates to systems and methods for fast-switching operating of a standing wave linear accelerator (LINAC) for use in generating x-rays of at least two different energy ranges with advantageously low heating of electronic switches. In certain embodiments, the heating of electronic switches during a fast-switching operation of the LINAC can be kept advantageously low through the controlled, timed activation of multiple electronic switches located in respective side cavities of the standing wave LINAC, or through the use of a modified a side cavity that includes an electronic switch.

Abstract: This invention relates to the automatic detection and identification of broadcast programming, for example music, speech or video that is broadcast over radio, television, the Internet or other media. “Broadcast” means any readily available source of content, whether now known or hereafter devised, including streaming, peer to peer delivery or detection of network traffic. A known program is registered by deriving a numerical code for each of many short time segments during the program and storing the sequence of numerical codes and a reference to the identity of the program. Detection and identification of an input signal occurs by similarly extracting the numerical codes from it and comparing the sequence of detected numerical codes against the stored sequences. Testing criteria is applied that optimizes the rate of correct detections of the registered programming. Other optimizations in the comparison process are used to expedite the comparison process.

Abstract: The disclosure relates to systems and methods for interleaving operation of a standing wave linear accelerator (LINAC) for use in providing electrons of at least two different energy ranges, which can be contacted with x-ray targets to generate x-rays of at least two different energy ranges. The LINAC can be operated to output electrons at different energies by varying the power of the electromagnetic wave input to the LINAC, or by using a detunable side cavity which includes an activatable window.

Abstract: The disclosure relates to systems and methods for fast-switching operating of a standing wave linear accelerator (LINAC) for use in generating x-rays of at least two different energy ranges with advantageously low heating of electronic switches. In certain embodiments, the heating of electronic switches during a fast-switching operation of the LINAC can be kept advantageously low through the controlled, timed activation of multiple electronic switches located in respective side cavities of the standing wave LINAC, or through the use of a modified a side cavity that includes an electronic switch.

Abstract: Provided herein are systems and methods for operating a traveling wave linear accelerator to generate stable electron beams at two or more different intensities by varying the number of electrons injected into the accelerator structure during each pulse by varying the width of the beam pulse, i.e., pulse width. The electron beams may be used to generate x-rays having selected doses and energies, which may be used for cargo scanning or radiotherapy applications.