Abstract: Controlling integral energy of a light pulse in a fluorescence imaging system is disclosed. A system includes an emitter for emitting pulses of electromagnetic radiation and an image sensor comprising a pixel array for sensing reflected electromagnetic radiation. The system includes an electromagnetic sensor for sensing energy emitted by the emitter. The system includes a controller configured to synchronize timing of the emitter and the image sensor. The system is such that at least a portion of the pulses of electromagnetic radiation emitted by the emitter comprises electromagnetic radiation having a wavelength from about 795 nm to about 815 nm.

Abstract: Video footage captured by A/V recording and communication devices may be readily uploaded to the cloud and shared with a requesting party, such as a law enforcement agency. When a request is received from a requesting party for video footage, videos meeting the criteria specified by the requesting party may be determined. Consent requests may then be sent to users associated with each of the A/V recording and communication devices that recorded the videos meeting the criteria specified by the requesting party. When user consents to share the videos, the videos may be provided to the requesting party.

Abstract: Controlling integral energy of a light pulse in a fluorescence imaging system is disclosed. A system includes an emitter for emitting pulses of electromagnetic radiation and an image sensor comprising a pixel array for sensing reflected electromagnetic radiation. The system includes an electromagnetic sensor for sensing energy emitted by the emitter. The system includes a controller configured to synchronize timing of the emitter and the image sensor. The system is such that at least a portion of the pulses of electromagnetic radiation emitted by the emitter comprises electromagnetic radiation having a wavelength from about 770 nm to about 790 nm.

Abstract: A method of coding image data performed by at least one processor, may include: receiving information regarding a data block of an image; determining whether at least one of a height or a width of a residual coding block corresponding to the data block of the image is greater than or equal to a pre-defined threshold; and based on determining that the at least one of the height or the width of the residual coding block is greater than or equal to the pre-defined threshold: identifying or generating a reduced-complexity residual coding block by reducing the number of non-zero coefficients in the residual coding block; and performing transform coding of the reduced-complexity residual coding block using a line graph transform (LGT) core to perform direct matrix multiplications for each of the horizontal and vertical dimensions of the reduced-complexity coding block.

Abstract: An image processing apparatus and method that make it possible to decode encoded data of 3D data with increased ease. A bit stream is generated which includes projection direction information including information relating to a projection direction of position information of 3D data representative of a three-dimensional structure on a two-dimensional plane and encoded data of a geometry image obtained by projecting the position information on the two-dimensional plane.

Abstract: Encoding an image block using a quantization parameter includes presenting, to an encoder that includes a machine-learning model, the image block and a value derived from the quantization parameter, where the value is a result of a non-linear function using the quantization parameter as input, where the non-linear function relates to a second function used to calculate, using the quantization parameter, a Lagrange multiplier that is used in a rate-distortion calculation, and where the machine-learning model is trained to output mode decision parameters for encoding the image block; obtaining the mode decision parameters from the encoder; and encoding, in a compressed bitstream, the image block using the mode decision parameters.

Abstract: A data output apparatus includes: a video decoder that decodes a video stream to generate a first video signal; an external metadata acquisition unit that acquires one or more pieces of metadata corresponding to one or more first conversion modes; an HDR metadata interpreter that interprets one of the one or more pieces of metadata to acquire characteristic data and conversion auxiliary data; a DR converter that supports one or more second conversion modes and performs conversion processing of a luminance range of the first video signal based on the conversion auxiliary data to generate a second video signal; and an HDMI output unit that outputs the second video signal to a display apparatus.

Abstract: An image display device acquires positional information including a distance between at least one eye of an observer and an image display surface, and corrects, based on the acquired positional information, a relative positional relationship between slit areas and an image displayed on the image display surface, by using a width smaller than the width of one subpixel as a minimum correction unit.

Abstract: Current indoor tracking methods are inadequate to accurately and reliably point a pointer or camera at an object or a person doing an activity. An apparatus and method are provided for cooperative tracking that is operable both indoors and outdoors. The system works using ranging technology without the need for placing radiation sources and/or sensors in set locations around the location where tracking takes place. The apparatus and method may be used for automatic filming, allowing free movement of both the subject of the filming and that of the camera with a compact design, and providing easy setup at any location.

Abstract: A method of decoding video data includes constructing, by a video decoder implemented in processing circuitry, a candidate list of motion vector information for a portion of a current frame. The method includes receiving, by the video decoder, signaling information indicating starting motion vector information of the candidate list of motion vector information, the starting motion vector information indicating an initial position in a reference frame. The method includes refining, by the video decoder, based on one or more of bilateral matching or template matching, the starting motion vector information to determine refined motion vector information indicating a refined position in the reference frame that is within a search range from the initial position. The method includes generating, by the video decoder, a predictive block based on the refined motion vector information and decoding, by the video decoder, the current frame based on the predictive block.

Abstract: In various examples, a dental and medical loupe system for lighting control, streaming, and augmented reality (AR) assisted procedures is provided. Facial recognition algorithms and/or inertial measurement unit (IMU) sensors may be used to determine when a light disposed on eye-glasses of a wearer should be activated. As a result, instead of requiring a medical practitioner to manually turn on and off the light source, facial recognition may be used to determine when the dentist is looking toward a face of a patient, and to turn on the light when a face is present and off when a face is not present. In addition, some examples leverage augmented reality (AR) functionality to overlay patient and procedure information on one or more lenses of eye-glasses worn by a practitioner to allow for an un-occluded view of the actual location where the procedure is being performed.

Abstract: Pulsed hyperspectral imaging in a light deficient environment is disclosed. A system includes an emitter for emitting pulses of electromagnetic radiation and an image sensor comprising a pixel array for sensing reflected electromagnetic radiation. The system includes an electromagnetic sensor for sensing energy emitted by the emitter. The system includes a controller configured to synchronize timing of the emitter and the image sensor. The system is such that at least a portion of the pulses of electromagnetic radiation emitted by the emitter comprises electromagnetic radiation having a wavelength from about 513 nm to about 545 nm, from about 565 nm to about 585 nm, or from about 900 nm to about 1000 nm.

Abstract: A video coding device may be configured to perform video coding comprising: receiving a video block including sample values for a first component of video data and a second component of video data; partitioning the sample values for the first component of video data and the second component of video data according to a first quad tree binary tree (QTBT) partitioning structure; and for samples values of the first component of video data included in nodes of the first quad tree binary tree associated with an intra prediction type, further partitioning the samples according to a second quad tree binary tree.

Abstract: Controlling integral energy of a light pulse in a fluorescence imaging system is disclosed. A system includes an emitter for emitting pulses of electromagnetic radiation and an image sensor comprising a pixel array for sensing reflected electromagnetic radiation. The system includes an electromagnetic sensor for sensing energy emitted by the emitter. The system includes a controller configured to synchronize timing of the emitter and the image sensor. The system is such that at least a portion of the pulses of electromagnetic radiation emitted by the emitter comprises electromagnetic radiation having a wavelength from about 770 nm to about 790 nm and/or from about 795 nm to about 815 nm.

Abstract: There is provided a medical observation device, including: an observation unit configured to perform magnified observation of a surgical site; a vibration sensor that detects a vibration of the observation unit; a support unit that supports the observation unit; and a control unit that conducts an image shake correction that corrects a shake in an image observed by the observation unit, based on a detection value from the vibration sensor.

Abstract: A video may include a capture of a scene, such as a wide-field of view capture of the scene. A punchout of the video may provide a framing of the captured scene. The punchout may be determined based on the context of the video, such as the type of captured scene within the video, the motion of the image capture device that captured the video, and/or the motion of one or more things within the captured scene.

Abstract: Methods and systems for mapping camera location and selecting a desired view in a video management system make use of images showing fiducial markers to identify camera location and desired camera views. In one implementation, a central computer receives an image obtained by a camera showing a fiducial marker with indicia. The image is processed to determine the identity of the fiducial marker. Location information associated with the identity is retrieved from a database and used to identify the location of the camera. In another implementation, images of fiducial markers obtained by a plurality of cameras are used to select a subset of fiducial markers identified as being present at a desired location. Based on that subset of fiducial markers, each of the cameras being present at that desired location are then identified.

Abstract: A method, computer program, and computer system is provided for video post-processing using supplemental enhancement information (SEI) messages by determining whether a structure of a neural network and one or more parameters associated with the neural network are defined for a decoder and requesting data corresponding to the structure of the neural network and the one or more parameters based on the determination using one or more SEI messages. The requested structure and parameter data is received, and post processing is performed on video data based on the received structure and parameter data.

Abstract: A display device (100) has a plurality of display elements (101) arranged in a display plane for rendering a three-dimensional image in accordance with image data (330). Each display element has a pixel (120) and an actuator (130) for moving the pixel normal to the display plane. The actuator of each display element is operable, in response to receiving a position value for the pixel, to move the pixel normal to the display plane in accordance with the position value.

Abstract: To enhance a mono-output-only controller such as a mobile OS to support selective mono/stereo/mixed output, a stereo controller is instantiated in communication with the mono controller. The stereo controller coordinates stereo output, but calls and adapts functions already present in the mono controller for creating surface and image buffers, rendering, compositing, and/or merging. For content designated for 2D display, left and right surfaces are rendered from a mono perspective; for content designated for 3D display, left and right surfaces are rendered from left and right stereo perspectives, respectively. Some, all, or none of available content may be delivered to a stereo display in 3D, with a remainder delivered in 2D, and with comparable content still delivered in 2D to the mono display. The stereo controller is an add-on; the mono controller need not be replaced, removed, deactivated, or modified, facilitating transparency and backward compatibility.