Image still area determination device
AssigneeFujitsu Microelectronics Limited
InventorsMasahiro Tatsumi, Masayuki Tsuji
Life of this patent
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Abstract
In order to reduce the flicker and blur of a result obtained by, for example, converting an interlace scan image into a progressive scan image, an image still area determination device comprises a unit for calculating the average value of the values of the relevant pixel and pixels adjacent to the pixel in each of the current frame image and a frame image immediately before it, a unit for calculating a difference between the average values of a pair of pixels located in the same position of each of two frame images and a unit for determining a still area in each of the two frame images, using its output and a predetermined threshold value.
Claims6
An image still area determination device, comprising:
- an adjacent pixel value averaging unit for calculating an average value of values of the relevant pixel and pixels adjacent to the pixel in each of two frames when a current frame image and a frame image immediately before it are inputted;
- a pixel value difference extraction unit for calculating a difference between the average values of values of a pair of pixels in the same position of each of the two frame images;
- and
- a still area determination unit for determining a still area of each of the two frame images, using an output of the pixel value difference extraction unit and a predetermined threshold value.
Dependencies are inferred from the claim text.