摘要:
A method for video mode detection, wherein video input data (VID) corresponding to a video picture (P) is received and a video mode is determined for said video picture (P). The determining of said video mode depends on a local video mode (LVM) and a global video mode (GVM) of said video picture (P). Said global video mode (GVM) is determined for said video picture (P) based on said video input data (VID) or a derivative (m1) thereof. For determining said local video mode (LVM), first said video picture (P) is subdivided into a ticker area (TA) and a remaining area (RA), thereby generating ticker area data (TAD). Then, said local video mode (LVM) is determined for said ticker area (TA) based on said ticker area data (TAD). When determining said local video mode (LVM), said ticker area (TA) is subdivided into n sub-areas, and at least one of said n sub-areas (1 . . . 6) is selected as selected sub-area (SSA). Further, a sub-area video mode (SVM) is determined for said selected sub-area and said local video mode (LVM) is determined for said ticker area (TA) based on said sub-area video mode (SVM).
摘要:
A method for discriminating textured regions and homogeneous or flat regions in an image. A multi-scale or multi-resolution measurement is performed with respect to the image. Alternatively or additionally, the image is analyzed by using a prior measured noise value and a local variance value in or with respect to the image.
摘要:
The present invention relates to an image processing method and to a device to process a moving image, which is shot by a predetermined video shooting device, in increments of access units. The imaging blur is represented by a corresponding low-pass filter showing the properties of imaging blur which occurs at the time that said moving image is shot with said video shooting device. According to the present method an inverse filter having inverse properties as to said low-pass filter is generated. A processing is performed to apply said inverse filter to said access unit to be processed. Hereby, the step of generating an inverse filter includes an iterative algorithm in the frequency domain based on the original blurred image and the point spread function.
摘要:
The present invention relates to a method for providing reliable motion vectors, comprising the steps of determining motion vectors between two image frames with backward and forward estimation, comparing backward estimation motion vectors and forward estimation motion vectors, and detecting unreliable motion vectors based on the comparison result.The present invention further relates to a system for providing reliable motion vectors.
摘要:
The present invention relates to a method for interpolating a subpixel at an interpolation position, which is situated in the chronological order between two source frames. Thereby the calculation of the interpolated subpixel's value is based on the value of the pixels of the two source frames and additional weighting coefficients, which are based on the motion vectors correlating the two source frames.