摘要:
A method of up-scaling a first structure of samples representing a first property, the first structure having a source resolution, into a second structure of samples representing the first property, the second structure having a target resolution, on basis of a third structure of samples representing a second property, the third structure having the source resolution and on basis of a fourth structure of samples representing the second property, the fourth structure of samples having the target resolution, the method comprising: assigning weight factors to respective first samples of the first structure of samples on basis of differences between respective third samples of the third structure of samples and fourth samples of the fourth structure of samples; and computing the second samples of the second structure of samples on basis of the first samples of the first structure of samples and the respective weight factors.
摘要:
A method of up-scaling a first structure of samples representing a first property, the first structure having a source resolution, into a second structure of samples representing the first property, the second structure having a target resolution, on basis of a third structure of samples representing a second property, the third structure having the source resolution and on basis of a fourth structure of samples representing the second property, the fourth structure of samples having the target resolution, the method comprising: assigning weight factors to respective first samples of the first structure of samples on basis of differences between respective third samples of the third structure of samples and fourth samples of the fourth structure of samples; and computing the second samples of the second structure of samples on basis of the first samples of the first structure of samples and the respective weight factors.
摘要:
A method and apparatus for rendering image data on a 3D display is disclosed. A first image signal is received and then at least one colour component of the first image signal is rendered in reduced spatial resolution to produce a second image signal. The second image signal is spatial filtered wherein spatial errors and view errors are balanced when reconstructing a full resolution signal for the display.
摘要:
A method and apparatus for rendering image data on a 3D display is disclosed. A first image signal is received and then at least one colour component of the first image signal is rendered in reduced spatial resolution to produce a second image signal. The second image signal is spatial filtered wherein spatial errors and view errors are balanced when reconstructing a full resolution signal for the display.
摘要:
Signal processing device for providing multiple output images by processing input images of an interlaced video signal, comprising a temporal interpolater circuit (18) and a memory buffer (26, 27) connected to the temporal interpolater circuit. The memory buffer (26, 27)is arranged for storing at least part of a previous input image (11, 13) and a current input image (12). The temporal interpolater circuit (18) is arranged for receiving at least the previous and current input image from the memory buffer (26, 27) and for providing multiple interlaced or de-interlaced frame data (15) at temporal positions between the previous input image temporal position and the current input image temporal position.
摘要:
An apparatus and method for facilitating a subsequent choice of a motion vector from a plurality of candidate motion vectors in a motion estimation method, include receiving video image data from first, second and third consecutive groups (10, 20, 30) of image data. A first image part (12) of the first group of image data (10), a second image part (22) of the second group of image data (20), and a third image part (32) of the third group of image data (30) are identified, wherein the positions of the three image parts (12, 22, 32) correspond to a motion trajectory that is indicated by a candidate motion vector. A first error measure is then calculated by testing for differences between the first image part (12) and the third image part (32) and quantified as a first error measure. A second error measure is calculated by testing for differences between either the first image part (12) and the second image part (22) or the second image part and the third image part and quantified as a second error measure. An output error measure is then quantified, wherein the output error measure is derived from either the first or the second or a combination of both error measures.
摘要:
The image processor (101) for motion compensated image processing comprises a motion compensation unit (106) for calculating an output image based on a particular motion vector field and based on a first input image and a second input image. The particular motion vector field can be calculated by a motion estimator (104) which is part of the image processor (101) or by an external unit (108). The image processor (101) is designed to select from which source, i.e. the motion estimator (104) or the external unit (108), the particular motion vector field is taken to calculate the output image. The external source is designed to calculate the particular motion vector field based on a motion vector field which was provided by the motion estimator (104) of the image processor (101).
摘要:
A processor executes image processing under control of a clock facility, such that a sequence of C effective clock cycles will effect a processing operation of a predetermined amount of image information. In particular, the processor has programming means for implementing programmable stall clock cycles interspersed between the effective clock cycles for implementing a programmable slowdown factor S, such that a modified number of C*S overall clock cycles will effect processing of the predetermined amount of digital signal information.
摘要:
A cache management policy is provided, comprising a method for writing back to a memory (104) a data element set (122) stored in a cache (110). The method reduces the time some items stay in the cache, and thereby improves the utilization of the cache for some applications, especially for video applications. The method comprises determining that each one of the multiple data elements has been updated through at least one write request; marking the data element set as a write-back candidate, in dependency on said determination; and writing the write-back candidate to the memory.
摘要:
A technique for frame rate conversion that utilizes motion estimation and motion compensated temporal interpolation includes obtaining a first image and a second image, where the first and second images correspond to different instances in time, compressing the second image using multiple motion vectors that result from motion estimation between the first image and the second image to generate a compressed image, and generating an interpolated image using the compressed image.