SDA9410
5.8
Preliminary Data Sheet
Motion estimation
Motion estimation
The 3-D Recursive Search Block-Matching algorithm was introduced as a high
performance low-cost motion estimation algorithm suitable for demanding scan rate
conversion applications. The figure below explains the principle of the block matching
algorithm. The result is a best matching vector, which contains information about velocity
and direction of a block at position (x,y).
(x,y)
(vx,vy)T
v
(x,y)
time T-1
time T
Figure 41
Principle of block matching
The main characteristics of the motion estimator inside of the SDA 9410 are listed in the
table below.
I²C Bus parameter
Horizontal range
Vertical range
Block size
+/-32
pels
+/-24
lines
8x8 (HxV)
+/- 1
pels (frame grid)
pels
Accuracy
Candidates
8 (2x3 + 2)
90*72 (HXV)
Amount of blocks
Table 78
Key I²C Bus parameters of the 3-D RS motion estimation
96
Micronas
MICRONAS [ MICRONAS ]
