MOTION-COMPENSATED PROCESSING OF IMAGE SIGNALS
In a motion-compensated processing of images, input images are down-scaled (scl) to obtain down-scaled images, the down-scaled images are subjected to motion-compensated processing (ME UPC) to obtain motion-compensated images, the motion-compensated images are up-scaled (sc 2 ) to obtain up-scaled motion-compensated images; and the up-scaled motion-compensated images are combined (M) with the input images to obtain output images.
1 . A method of motion-compensated processing of images, the method comprising the steps of:
down-scaling input images to obtain down-scaled images;
subjecting the down-scaled images to motion-compensated processing to obtain motion-compensated images;
up-scaling (the motion-compensated images to obtain up-scaled motion-compensated images; and
combining the up-scaled motion-compensated images with the input images to obtain output images.
2 . A device for motion-compensated processing of images, the device comprising:
a down-scaler for down-scaling input images to obtain down-scaled images;
a motion-compensated processor for subjecting the down-scaled images to motion-compensated processing to obtain motion-compensated images;
an up-scaler for up-scaling the motion-compensated images to obtain up-scaled motion-compensated images; and
a mixer for combining the up-scaled motion-compensated images with the input images to obtain output images.
3 . A device as claimed in claim 2 , wherein the mixer is coupled to receive a control signal for combining the up-scaled motion-compensated images with the input images to obtain output images in dependence on a speed of moving objects in the down-scaled images.
4 . A device as claimed in claim 3 , wherein the control signal further depends on a consistency of motion vectors used in the motion-compensated processing.
5 . A device as claimed in claim 3 , wherein the control signal further depends on a brightness of the down-scaled images.
6 . A device as claimed in claim 2 , wherein the mixer comprises:
a high-pass filter for filtering the input image signals to obtain high-pass filtered image signals; and
a combining circuit for combining the high-pass filtered image signals and the up-scaled motion-compensated images to obtain output images.
7 . A display device, comprising:
a device as claimed in claim 2 to obtain output images; and
a display for displaying the output images.