Video artifact identification and counting
AssigneeNXP B.V.
InventorsChien-Hsin Lin, Chang-Ming Yang
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AssigneeNXP B.V.
InventorsChien-Hsin Lin, Chang-Ming Yang
Estimating the term…
Artifact detection and counting is enhanced using looping in both the horizontal and vertical direction is enhanced via a reduced bandwidth for accumulation of count values into count table entries. According to an example embodiment of the present invention, first and second loops are made for horizontal and vertical count table entries. Quotient and remainder values of a detected artifact value are used for increasing count table entries in the first looping pass, and the count table entries are increased using the quotient value in the second loop. The table increase in the first loop is limited to the length of the remainder value, and the table increase in the second loop is limited to the length of the row or column in the count table being used. In this manner, latency for additions to the count table and the bandwidth for making the additions are reduced, relative to conventional applications. In addition, each entry into the table can be reduced to one addition.
A method for artifact detection and counting in a video signal processing circuit having a count table, the method comprising using first and second loops for each of horizontal and vertical count table entries, the first loop being adapted to increase the count table entries up to the length of a remainder value of a detected artifact value and the second loop being adapted to increase the count table entries using a quotient value of a detected artifact value.
Dependencies are inferred from the claim text.