Abstract: A method comprising the steps of obtaining at least one frame of input data from at least one sensor, the frame of input data representative of a real-world environment at a given time. The frame is analysed to determine at least a foveal region within the frame, and at least a method for generating depth information associated with the real-world environment based on the frame of input data is selected. The method is applied to the foveal region to generate depth information associated with the foveal region, and at least the depth information associated with the foveal region is outputted.

Abstract: Examples of the present disclosure relate to a method for reducing artefacts caused by the presence of flicker during capture of a video. A sequence of frames of the video are captured, the frames each comprising a plurality of predefined regions each comprising a plurality of pixels. A time-varying oscillation of the flicker is characterized based on variations, across the sequence of frames, of data relating to pixel intensities in at least one said region. Based on the characterizing of the time-varying oscillation of the flicker, a flicker correction is applied to a frame of the video.

Abstract: A method comprising the steps of obtaining at least one frame of input data from at least one sensor, the frame of input data representative of a real-world environment at a given time. The frame is analysed to determine at least a foveal region within the frame, and at least a method for generating depth information associated with the real-world environment based on the frame of input data is selected. The method is applied to the foveal region to generate depth information associated with the foveal region, and at least the depth information associated with the foveal region is outputted.

Abstract: Examples of the present disclosure relate to methods for processing image data. In one such example, data elements are received defining a portion of a line of pixels of an image, the image comprising one or more lines of pixels definable by one or more respective sets of data elements. In some cases, a transform operation is performed on the data elements to obtain a plurality of binary transform coefficients, wherein the transform operation is performed independently of data elements defining any other line of pixels. The plurality of transform coefficients is encoded as a sequence of tiered bit-layers, each bit-layer in the sequence of bit-layers comprising a set of bits corresponding to a given bit position in each of the plurality of transform coefficients. The encoded plurality of transform coefficients is output.

Abstract: A graphics processing system includes a processing circuit operable to render or decode a sequence of frames and generate extrapolated frames by extrapolating object motion from rendered or decoded frames. The system also includes a processing circuit operable to extrapolate object motion from first and second rendered or decoded frames in the sequence to a later extrapolated frame. The processing circuit is also operable to test candidate motion vectors from a region of the extrapolated frame through a region of the first frame to a region of the second frame by comparing the region of the first frame with the region of the second frame. A similarity measure from the comparison is used to select a motion vector and an indication representative of the selected motion vector is stored.

Abstract: A graphics processing system includes a processing circuit operable to render or decode a sequence of frames and generate extrapolated frames by extrapolating object motion from rendered or decoded frames. The system also includes a processing circuit operable to extrapolate object motion from first and second rendered or decoded frames in the sequence to a later extrapolated frame. The processing circuit is also operable to test candidate motion vectors from a region of the extrapolated frame through a region of the first frame to a region of the second frame by comparing the region of the first frame with the region of the second frame. A similarity measure from the comparison is used to select a motion vector and an indication representative of the selected motion vector is stored.

Abstract: Examples of the present disclosure relate to methods for processing image data. In one such example, data elements are received defining a portion of a line of pixels of an image, the image comprising one or more lines of pixels definable by one or more respective sets of data elements. In some cases, a transform operation is performed on the data elements to obtain a plurality of binary transform coefficients, wherein the transform operation is performed independently of data elements defining any other line of pixels. The plurality of transform coefficients is encoded as a sequence of tiered bit-layers, each bit-layer in the sequence of bit-layers comprising a set of bits corresponding to a given bit position in each of the plurality of transform coefficients. The encoded plurality of transform coefficients is output.

Abstract: Examples of the present disclosure relate to a method for reducing artefacts caused by the presence of flicker during capture of a video. A sequence of frames of the video are captured, the frames each comprising a plurality of predefined regions each comprising a plurality of pixels. A time-varying oscillation of the flicker is characterized based on variations, across the sequence of frames, of data relating to pixel intensities in at least one said region. Based on the characterizing of the time-varying oscillation of the flicker, a flicker correction is applied to a frame of the video.