Motion detection device and noise reduction device using that

Details Motion detection device and noise reduction device using that Motion detection device and noise reduction device using that

2011-03-08

2011-03-08

Czekaj, David (Department: 2483)

Television

Image signal processing circuitry specific to television

Motion dependent key signal generation or scene change...

C375S240160

Reexamination Certificate

active

07903179

ABSTRACT:
The invention provides a motion detection apparatus that can improve a noise removal effect, can suppress the occurrence of tailing of a motion portion resulting from the increase of the noise removal effect, can increase the noise removal effect from a high electric field to a low electric field and can eliminate unnaturalness of the image for observation such as an after-image and a pasting feel resulting from the increase of the noise removal effect, and a noise reduction apparatus using the motion detection apparatus. The motion detection apparatus compares a frame difference with a threshold value, calculates the sum of the comparison result for a block including a plurality of pixels, and applies in expansion the output to several pixels in a horizontal or vertical direction to detect motion. The noise reduction apparatus utilizes this motion detection apparatus.

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