Abstract: A method and apparatus for performing intra prediction for encoding or decoding adds multiple prediction modes to those of prior intra prediction schemes. A horizontal mode, a vertical mode, and a diagonal mode are added. Reference pixels for each of the added modes can come from multiple pixel positions away from a block to be encoded or decoded. Reference pixels to the left and above a block are reconstructed from those already coded. Reference pixels from right of, and below, a block are estimated or extrapolated and can be based on other pixels around the block. An index can be sent in a bitstream indicating which prediction was used.

Abstract: A method of decoding an encoded video bitstream using at least one processor, including obtaining a first flag indicating whether a constant picture size is used in a coded video sequence including a current picture; based on the first flag indicating that the constant picture size is used, decoding the current picture without performing reference picture resampling; based on the first flag indicating that the constant picture size is not used, obtaining a second flag indicating whether a conformance window size is signaled; based on the second flag indicating that the conformance window size is signaled: obtaining the conformance window size, determining a resampling ratio between the current picture and a reference picture based on the conformance window size, and performing the reference picture resampling on the current picture using the resampling ratio.

Abstract: Sub-table for history-based affine mode is described. In an exemplary aspect, a method for video processing includes deriving, deriving, for a conversion between a current block of video and a bitstream representation of the current block, an affine model for the current block based on affine related information, wherein the affine related information is stored in at least one first affine history motion vector prediction (HMVP) buffer of M first affine HMVP buffers or at least one affine sub-buffer of M affine sub-buffers (HB0, HB1, . . . HBM-1) into which a second affine HMVP buffer is divided, wherein the first affine HMVP buffer or affine HMVP sub-buffer being used to store affine related information of blocks coded prior the current block, M being an integer larger than 1; and performing the conversion by using the derived affine model.

Abstract: This invention suppresses degradation of subjective image quality while improving the coding efficiency of residual coefficients of two chroma components. To this, an image coding device that codes image data constituted by one luma component and two chroma components according to the invention, comprises quantizing unit that performs an orthogonal transform on each of components of a block obtained by dividing an image to be coded, and quantizes transform coefficients of each of the components obtained from the orthogonal transform; and coding unit that codes residual coefficients obtained by the quantizing unit, wherein when coding the transform coefficients of the orthogonal transform of the two chroma components in an integrated manner, the coding unit quantizes transform coefficients of the orthogonal transform obtained from the integration using a predetermined quantization matrix, and codes residual coefficients obtained from the quantizing.

Abstract: Systems and techniques are provided for identifying patterns activity at a facility that seem to precede alarm events. In some implementations, a monitoring system is configured to monitor a property and includes a sensor configured to generate sensor data. A monitor control unit is configured to receive the sensor data and based on the sensor data, determine an alarm status of the monitoring system. A monitoring application server is configured to receive the sensor data and data indicating the alarm status of the monitoring system. The server applies the sensor data to a model that determines an estimated alarm status of the monitoring system and determines the estimated alarm status of the monitoring system is different from the alarm status. Based on determining that the estimated alarm status of the monitoring system is different from the alarm status of the monitoring system, the server overrides the alarm status.

Abstract: A vehicular vision system includes a rearward-viewing camera and a forward-viewing camera disposed at a vehicle. Image data captured by the cameras is provided to the electronic control unit. The electronic control unit sends respective control data to the cameras, and the respective sent control data is stored in respective memory of the cameras. With the respective sent control data stored in the respective memory of the cameras, the electronic control unit sends a trigger signal to the cameras. Responsive to the sent trigger signal, the cameras load operational parameters of the respective stored control data into respective image sensors of the cameras so that the operational parameters of the respective image sensors of the cameras are synchronized. With the operational parameters of the respective image sensors of the cameras synchronized, image data is captured by the respective image sensors and is sent to the electronic control unit.

Abstract: A head-mounted extended reality (XR) display device includes a rigid mounting element coupled to a frame. The XR display device further includes right-side and left-side visible light cameras coupled to the rigid mounting element, right-side and left-side near-infrared (NIR) cameras coupled to the rigid mounting element, and an NIR light-emitting diode (LED) configured to illuminate a region within a field of view of the NIR cameras. The visible light cameras are configured to capture stereoscopic visible light images within a field of view of the user when the user is wearing the frame, and the NIR cameras are configured to capture stereoscopic NIR images within the field of view of the user when the user is wearing the frame.

Abstract: Innovations in flexible reference picture management are described. For example, a video encoder and video decoder use a global reference picture set (“GRPS”) of reference pictures that remain in memory, and hence are available for use in video encoding/decoding, longer than conventional reference pictures. In particular, reference pictures of the GRPS remain available across random access boundaries. Or, as another example, a video encoder and video decoder clip a reference picture so that useful regions of the reference picture are retained in memory, while unhelpful or redundant regions of the reference picture are discarded. Reference picture clipping can reduce the amount of memory needed to store reference pictures or improve the utilization of available memory by providing better options for motion compensation. Or, as still another example, a video encoder and video decoder filter a reference picture to remove random noise (e.g., capture noise due to camera imperfections during capture).

Abstract: A stereo camera apparatus includes a stereo camera, a speed sensor, and a control device. The control device includes one or more processors and one or more storage media. The one or more processors are configured to: detect corresponding points from a first image pair and a second image pair to be captured at different times by the stereo camera; divide each of images of the first image pair and the second image pair into regions; calculate, for each of the regions, a movement speed based on an external parameter by using one or more of the corresponding points included in the each of the regions; and calculate, for the each of the regions, a parallax correction value to cause a difference between the movement speed based on the external parameter and a movement speed detectable by the speed sensor to fall below a predetermined threshold.

Abstract: A method, computer program, and computer system is provided for decoding point cloud data. Data corresponding to a point cloud is received. A number of contexts associated with the received data is reduced based on occupancy data corresponding to one or more parent nodes and one or more child nodes within the received data. The data corresponding to the point cloud is decoded based on the reduced number of contexts.

Abstract: An electronic device displays a representation of a field of view of a camera that includes a view of a three-dimensional space. The representation of the field of view is updated over time based on changes to current visual data detected by at least one of the one or more cameras. Movement of the electronic device moves the field of view of the camera in a first direction. While detecting the movement, the electronic device: updates the representation of the field of view in accordance with the movement; identifies one or more elements in the representation of the field of view that extend along the first direction; and, based at least in part on the determination of the one or more elements, displays, in the representation of the field of view, a guide that extends in the first direction and that corresponds to one of the identified elements.

Abstract: An encoding method is provided for encoding a picture to generate a coded stream. The encoding method incldues: generating a first prediction image of a current block included in a current picture by referring to a first region included in a reference picture different from the current picture; operating a bi-directional optical flow process to generate a second prediction image based on the first prediction image by referring to a second region included in the first region, and not operating the bi-directional optical flow process by referring to a third region not included in the first region; and encoding the current block based on the second prediction image.

Abstract: The present invention relates to a method of reading out information from a data carrier and to a data carrier utilizing the concept of structured-illumination microscopy or saturated structured-illumination microscopy.

Abstract: A system for generating a 3D model of a surgical site includes a 3D endoscope and a computing device coupled to the 3D endoscope. The 3D endoscope includes a scanner for scanning a surface of a surgical site and a camera source for generating images of the surgical site. A 3D model of the surgical site, including objects therein, is generated using scan data and image data. The 3D model is updated by detecting a change in the surgical site, isolating a region of the surgical site where the change is detected, generating second scan data by scanning the surface of the isolated region, and updating the 3D model generated using the second scan data of the surface of the isolated region.

Abstract: Several methods, systems, and computer program products for quantization of video content are disclosed. In an embodiment, the method includes determining by a processing module, motion information associated with a block of video data of the video content. A degree of randomness associated with the block of video data is determined by the processing module based on the motion information. A value of a quantization parameter (QP) associated with the block of video data is modulated by a quantization module based on the determined degree of randomness.

Abstract: An encoder includes: circuitry; and memory coupled to the circuitry. In operation, the circuitry: derives a base motion vector to be used in predicting a current block to be encoded; derives a first motion vector different from the base motion vector; derives a motion vector difference based on a difference between the base motion vector and the first motion vector; determines whether the motion vector difference is greater than a threshold; modifies the first motion vector when the motion vector difference is determined to be greater than the threshold, and does not modify the first motion vector when the motion vector difference is determined not to be greater than the threshold; and encodes the current block using the first motion vector modified or the first motion vector not modified.

Abstract: Disclosed is an apparatus and a process for producing and viewing through the internet high-resolution images of the commonly viewed exterior surfaces of a vehicle, while maintaining the same background view for multiple images of the vehicle. The background and the imaging device are revolved around a vehicle which is maintained in fixed position between the background and the imaging device. There can be two or more opposed imaging devices and two or more opposed displays. The vehicle does not need to be rotated or moved during the imaging.

Abstract: A visual positioning system for mobile devices includes at least one infrared camera, at least one infrared illumination source, and a processor that coordinates operation of the at least one camera and illumination sources. A flood IR infrared illumination source illuminates environmental objects for localization of the mobile device during a first camera exposure window, and a structured IR illumination source illuminate environmental objects for detection and mapping of obstacles during a second camera exposure window. A visual SLAM map is constructed with images obtained from a first camera, with a single map being useable for positioning and navigation across a variety of environmental lighting conditions.

Abstract: Provided herein are microscope surveillance systems and methods. In particular, provided herein are modular, multi-functional microscope surveillance systems and methods suitable for use in incubators and other environments.

Abstract: An image capture device may include a touchscreen display, which may be used to receive user input. The image capture device may determine whether it is under water based on analysis of visual content captured by the image capture device. Responsive to determination that it is under water, the image capture device may change operation with respect to the touchscreen display.