Patent ID: 8189874

Claim:
A method for motion detection of a horizontal line, adaptive for detecting horizontal motion of the horizontal line and calculating data thereof, the method comprising: detecting a horizontal motion area of the horizontal line according to differences between corresponding target scan lines in adjacent fields, comprising: calculating a sum of differences between corresponding target scan lines in the adjacent fields; determining whether the sum of differences is larger than a first threshold; and if yes, setting the pixels of the target scan line as moving pixels; detecting the horizontal line within a horizontal motion area in a current field and in a previous field respectively; detecting the horizontal motion of the horizontal line if the horizontal line is detected in both the current field and the previous field; and setting pixels of the horizontal line in the current field as static pixels and calculating data of the horizontal line through de-interlacing of corresponding horizontal lines in the previous field and in a next field if the horizontal motion of the horizontal line is detected.