M65762FP Просмотр технического описания (PDF) - Renesas Electronics
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M65762FP Datasheet PDF : 35 Pages
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M65762FP
(6) Estimation of coding/decoding speed
Figure 3 compares the estimation of coding/decoding speed between the M65762FP and the existing product type
(M65760/1FP). Polygonal lines in the diagram are processing speeds of images theoretically generated assuming
the unmatched estimation ratio as a parameter. In addition, {
∆ indicate processing speeds of real image (without
TP function).
As shown in this diagram, the M65762FP has been largely improved in the processing speed compared with existing
product types. If the compression ratio is reduced, the reduction ratio of processing speed is moderated.
When a theoretical image is used to compare processing speeds in the worst case, the processing speed of existing
product type is about 9.4 M pixels/s (1 / compression ratio ≈ is about 1), while the processing speed of the
M65762FP is about 27.5 M pixels/s (1 / compression ratio ≈ 0.9) for coding and is about 31.2 M pixels/s (1 /
compression ratio ≈ 0.75) for decoding.
40
35
Decoding of M65762FP
30
Coding of
M65762FP
25
20
Coding/decoding of
existing product
type (M65760/1FP)
15
10
5
0
0
(Legend)
Decoding of M65762FP
Coding of M65762FP
Coding/decoding of existing
product type
0.25
Theoretical
image
Actual
image
0.5
0.75
1 / Compression Ratio
Figure 3 Estimated Processing Speed
1.0
1.2
REJ03F0235-0200 Rev.2.00 Sep 14, 2007
Page 8 of 34
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