Abstract: Techniques related to long term reference picture video coding are discussed. Such techniques include determining long term reference pictures for a sequence of pictures, adjusting the quantization parameters for the long term reference pictures based on temporal correlations for pictures temporally neighboring and including the long term reference pictures, and managing reference picture lists including the long term reference pictures.

Abstract: An embodiment may include a display processor, memory to store a 2D frame corresponding to a projection from a 360 video, and a quality selector to select a quality factor for a block of the 2D frame based on quality information from neighboring blocks of the 2D frame, including blocks which are neighboring only in the 360 video space. The system may also include a range adjuster to adjust a search range for the 2D frame based on a search area of the 2D frame, a viewport manager to determine if a request for a viewport of the 2D frame extends beyond a first edge of the 2D frame and to fill the requested viewport with wrap-around image information, and/or a motion estimator to estimate motion information based on both color information and depth information. Other embodiments are disclosed and claimed.

Abstract: A method and apparatus for coding of syntax elements are disclosed to allow prediction units in P and B slices to share the same syntax coding table. In one embodiment according to the present invention, the method and apparatus coding of syntax elements selectively apply a syntax coding table to encode or decode the syntax element associated with the partition mode of a coding unit of a picture region according to the slice type of the picture region. A first syntax coding table is used to process the syntax element if the slice type is an I mode and a second syntax coding table is used to process the syntax element if the slice type is not an I mode.

Abstract: Techniques related to group of picture structures for video coding are discussed. Such techniques include selecting a group of picture size for a set of pictures using a temporal correlation categorization and an estimated quantization parameter corresponding to the set of pictures such that the temporal correlation categorization is based on a measure of non-coefficient bits for encode of the set of pictures or a reference set of pictures.

Abstract: Systems and methods for determining quantization parameter (QP) for video coding. Embodiments may be particularly advantageous for strongly temporal correlated frames, such as for video conferencing applications. An initial QP for a frame of a video sequence may be modified based on a spatial complexity or a temporal complexity associated with the video frame, and/or based on an inter-predicted frame bitrate target cycle, as a function of whether the frame is intra- or inter-predicted. The inter-predicted frame bitrate target cycle includes a sequence of two or more inter-predicted frame bitrate targets that are assigned to the frame according to the inter-predicted frame bitrate target cycle. A reference frame for an inter-predicted frame may be selected based on the bitrate target associated with candidate reference frames. Initial QP of an inter-predicted frame with a scene change may be modified in a manner independent of an inter-predicted frame bitrate target cycle.

Abstract: Techniques related to video pre-processing for video coding are discussed. Such video pre-processing techniques may include applying adaptive temporal and spatial filtering to pixel values of video frames of input video to generate pre-processed video such that the adaptive temporal and spatial filtering includes blending spatial and temporal filtering of the individual pixel value when the block of pixels is a non-motion block and spatial-only filtering the individual pixel value when the block of pixels is a motion block.

Abstract: Techniques related to quantization parameter estimation for video coding are discussed. Such techniques may include generating features using a picture of input video received for encoding and applying a neural network to a feature vector including the features, a target bitrate, and a resolution of the picture to generate an estimated quantization parameter for encoding the picture.

Abstract: Techniques related to adaptive video deblocking for video coding are discussed. Such techniques may include selecting a deblock filter strength threshold offset based on a picture or slice level quantization parameter being within a particular zone of multiple zones of a range of available quantization parameters such that each zone has a preselected deblock filter strength threshold offset corresponding thereto.

Abstract: Techniques related to coding video using adaptive quantization rounding offsets for use in transform coefficient quantization are discussed. Such techniques may include determining the value of a quantization rounding offset for a picture of a video sequence based on evaluating a maximum coding bit limit of the picture, a quantization parameter of the picture, and parameters corresponding to the video.

Abstract: A method is performed by a CODEC (coder/decoder) for Intra prediction mode processing based on multiple MPMs (most probable modes) in video coding. The method includes operations of determining a first Intra mode associated with a left neighboring block of a current block; determining a second Intra mode associated with a top neighboring block of the current block; deriving three MPMs based on the first Intra mode and the second Intra mode, and processing a current Intra mode associated with the current block according to said three MPMs. The step of deriving said three MPMs based on the first Intra mode and the second Intra mode includes: determining whether the first Intra mode is identical to the second Intra mode; and if the first Intra mode is identical to the second Intra mode, deriving said three MPMs according to whether the first Intra mode is identical to a predetermined mode.

Abstract: A method and system process transform blocks according to quantization matrices in a video coding system. The method includes obtaining an initial quantization matrix having a first width and a first height, obtaining a derived quantization matrix having a second width and a second height, wherein the second width is different from the second height, and the derived quantization matrix is derived from the initial quantization matrix, receiving a transform block having a block size, where the transform block is associated with a picture, and selecting the initial quantization matrix or the derived quantization matrix for processing transform coefficients of the transform block according to the block size.

Abstract: Techniques related to coding video using adaptive in-loop filtering enablement are discussed. Such techniques may include determining whether or not to perform in-loop filtering based on evaluating a maximum coding bit limit of a picture of the video, a quantization parameter of the picture, and a coding structure of the video.

Abstract: Techniques related to selecting restoration filter coefficients for 2-dimensional loop restoration filters for super resolution video coding are discussed. Such techniques include upscaling reconstructed video frames along only a first dimension and selecting filter coefficients for portions of the frame by an evaluation that, for each pixel of the portion, uses only pixel values that are aligned with the first dimension. Selection of filter coefficients for the second dimension may be skipped or made using only a subset of available filter coefficients.

Abstract: Techniques related to selecting constrained directional enhancement filters for video coding are discussed. Such techniques may include selecting subset of constrained directional enhancement filters for use by a frame based on a frame level quantization parameter of the frame such that only the subset is used for filtering the frame.

Abstract: Techniques related to determining chroma quantization parameters for video coding are discussed. Such techniques may include generating first and second chroma quantization parameter offsets for first and second picture of a video sequence having a hierarchical coding structure such that the second chroma quantization parameter offset is greater than or equal to the first chroma quantization parameter offset in response to the first picture having a higher quality priority than the second picture.

Abstract: Certain aspects of an apparatus and method for automatic ER/PR scoring of tissue samples may include for determining a cancer diagnosis score comprising identifying a positive stained nucleus in a slide image of the tissue sample, identifying a negative stained nucleus in the slide image, computing a proportion score based on number of the positive stained nucleus identified and number of the negative stained nucleus identified and determining the cancer diagnosis score based on the proportion.

Abstract: Systems and methods for determining a target number of bits (target bitrate) for encoding a frame of video that will satisfy a buffer constraint in a parallel video encoder. The quantization parameter (QP) for a given encoding process may be determined for the frame based on the target bitrate to maintain a suitable average bitrate. In some embodiments, the bitrate used for one or more prior frame is estimated. In some embodiments, a buffer fullness update is made based on an estimated bitrate. In some embodiments, a bitrate to target for each frame is determined based on the frame type, estimated bitrate of a prior frame(s), and the updated buffer fullness.

Abstract: An embodiment may include a display processor, memory to store a 2D frame corresponding to a projection from a 360 video, and a quality selector to select a quality factor for a block of the 2D frame based on quality information from neighboring blocks of the 2D frame, including blocks which are neighboring only in the 360 video space. The system may also include a range adjuster to adjust a search range for the 2D frame based on a search area of the 2D frame, a viewport manager to determine if a request for a viewport of the 2D frame extends beyond a first edge of the 2D frame and to fill the requested viewport with wrap-around image information, and/or a motion estimator to estimate motion information based on both color information and depth information. Other embodiments are disclosed and claimed.

Abstract: Systems and methods for detecting screen contents and adaptive enablement of screen content coding modes. Encoding mode decision may be made adaptive to include or exclude screen content coding (SCC) modes. In some embodiments, a screen content decision is based on one or more statistics characterizing a distribution of meaningful colors (e.g., chroma) and/or intensities (e.g., luma) determined for a population of pixels of an input picture. In some embodiments, a screen content decision is based on one or more statistics characterizing the pure flat area of an input picture and the area with extreme sharp edges. Pictures may be encoded according to a mode selection that is adaptive to the screen content decision, for example selecting between encoding modes that include SCC modes, or selecting between encoding modes that exclude SCC modes.

Abstract: Certain aspects of an apparatus and method for automatic ER/PR scoring of tissue samples may include for determining a cancer diagnosis score comprising identifying a positive stained nucleus in a slide image of the tissue sample, identifying a negative stained nucleus in the slide image, computing a proportion score based on number of the positive stained nucleus identified and number of the negative stained nucleus identified and determining the cancer diagnosis score based on the proportion.