摘要:
The invention relates to a method for rendering an image sequence. wherein an individual image is rendered by rendering monochromatic subimages in temporal succession. A subimage sequence obtained by temporal sequencing of the subimages is generated in motion-compensated fashion.
摘要:
A method for encoding first and second data words, which may represent differential data values (e.g., luminance and chrominance difference data values), onto an encoded data word includes: assigning a first code word to a first approximation value for a first data value, and assigning a second code word to second approximation value for a second data value; mapping the first and the second code words onto respective first and second data segments of the encoded data word; determining a first difference value between the first data value and the first approximation value and determining a second difference value between the second data value and the second approximation value; and at least partial mapping a first difference data word representing the first difference value and/or a second difference data word representing the second difference value onto at least one additional data segment of the encoded data word.
摘要:
The invention relates to a method for rendering an image sequence. wherein an individual image is rendered by rendering monochromatic subimages in temporal succession. A subimage sequence obtained by temporal sequencing of the subimages is generated in motion-compensated fashion.
摘要:
A method is described for selecting a motion vector for a first image block of an image of an image sequence from a number of test vectors, to which respectively a significance measurement is assigned, wherein at least one of these test vectors is a motion vector of a further image block that is arranged temporally and/or spatially adjacent to the first image block, or a vector formed by modification of this motion vector, and wherein the method covers: Determining a distance measurement for each test vector, Determining a modified distance measurement to each test vector depending on the distance measurement determined to this test vector and additionally at least on the significance measurement assigned to this test vector, Selecting one of the test vectors as motion vector depending on the modified distance measurements, Determining a new distance measurement of the test vector selected as motion vector depending on whether the selected motion vector meets at least one significance criterion, and assigning this new significance measurement as significance measurement to the motion vector for the selection of a motion vector for a third image block, in which the motion vector of the first image block or a vector formed by modification of this motion vector is selected as test vector.
摘要:
A method for processing a video image sequence with a number of successive images and an image processing device for processing a video image sequence are described. The method comprises: generation of at least one scaled image sequence (F11, F12) from the video image sequence (F); generation of a motion-compensated scaled image sequence (F40) from the scaled image sequence (F50); generation of a motion-compensated output image sequence (F′) from the scaled image sequence (F40); wherein the generation of the motion-compensated scaled image sequence (F40) comprises the determination of a motion vector field based on at least two images (F11n−1; F11n) of the scaled image sequence (F11, F12) and the interpolation of an image using the at least two images and the motion vector field, and wherein the at least one input scaling factor (S11, S12) is dependent on motion information that is represented by at least one motion vector field that was determined for the temporally preceding images of the at least one scaled image sequence (F11, F12).
摘要:
A method is described for selecting a motion vector for a first image block of an image of an image sequence from a number of test vectors, to which respectively a significance measurement is assigned, wherein at least one of these test vectors is a motion vector of a further image block that is arranged temporally and/or spatially adjacent to the first image block, or a vector formed by modification of this motion vector, and wherein the method covers: Determining a distance measurement for each test vector, Determining a modified distance measurement to each test vector depending on the distance measurement determined to this test vector and additionally at least on the significance measurement assigned to this test vector, Selecting one of the test vectors as motion vector depending on the modified distance measurements, Determining a new distance measurement of the test vector selected as motion vector depending on whether the selected motion vector meets at least one significance criterion, and assigning this new significance measurement as significance measurement to the motion vector for the selection of a motion vector for a third image block, in which the motion vector of the first image block or a vector formed by modification of this motion vector is selected as test vector.
摘要:
Method for motion-vector-aided interpolation of a pixel of an intermediate image lying between two input images includes a first pixel being selected from a first field and a second pixel being selected from a second field using a first motion vector, and a third pixel being selected from the first field and a fourth pixel being selected from the second field using a second motion vector. Next, an interval specified by video information values of the first pixel and the second pixel or an interval specified by video information values of the third pixel and the fourth pixel is determined and the video information values are mixed such that the video information value of the pixel to be interpolated lies within this interval.
摘要:
In a method and device for determining motion vectors that are each coordinated with individual regions of an image, the image is divided into a number of first main blocks, making use of a first block raster, and a first estimation process is performed to provide each first block with a motion vector. The image is also divided into a number of second main blocks, making use of a second block raster, whose position is displaced relative to or offset from the first block raster, for example in the horizontal and vertical directions, and a second estimation process is performed to provide each second main block with a motion vector. A number of subblocks are formed, each subblock being formed by an overlap region between one of the main blocks of the first raster and certain ones of the second main blocks of the second raster. A motion vector for each subblock is generated, this motion vector depending on the motion vectors of the main blocks and being coordinated with the particular subblock.