IPS-VIDEO Altera, IPS-VIDEO Datasheet - Page 148
IPS-VIDEO
Manufacturer Part Number
IPS-VIDEO
Description
MegaCore Suite W/ 17 DSP Video/image Processing Functions
Manufacturer
Altera
Type
-r
Specifications of IPS-VIDEO
Software Application
IP CORE, SUITES
Supported Families
Arria GX, Cyclone II, HardCopy II, Stratix II
Core Architecture
FPGA
Core Sub-architecture
Arria, Cyclone, Stratix
Rohs Compliant
NA
Function
Suite of IP Functions for Video and Image Processing
License
Initial License
Lead Free Status / RoHS Status
na
Lead Free Status / RoHS Status
na
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5–64
Table 5–24. Recommended Parameters for the Scaler MegaCore Function
Table 5–25. Scaler Avalon-ST Video Protocol Parameters
Scaler II
Video and Image Processing Suite User Guide
Scaling up with any input/output resolution
Scaling down from M pixels to N pixels
Scaling down from M pixels to N pixels
(lower quality)
Frame Width
Frame Height
Interlaced /
Progressive
Bits per Color Sample
Color Pattern
Parameter
Scaling Problem
1
Table 5–24
Scaler in polyphase mode.
The Scaler MegaCore function can process streams of pixel data of the types shown in
Table
The features and functionality of the Scaler II MegaCore function are largely the same
as those of the
using less area while delivering higher performance.
The Scaler II MegaCore function performs similar algorithmic operations of the
polyphase scaler as the Scaler MegaCore function, but uses a different calculation
method. The Scaler II MegaCore function uses the following equation:
The Scaler II MegaCore function version 10.1 still uses the same calculation method as
the Scaler MegaCore function.
Maximum frame width is specified in the parameter editor, the actual value is read from control
packets.
Maximum frame height is specified in the parameter editor, the actual value is read from control
packets.
Progressive.
Number of bits per color sample selected in the parameter editor.
One, two or three channels in sequence or in parallel as selected in the parameter
editor. For example, if three channels in sequence is selected where , and,
can be any color plane:
5–25.
summarizes some recommended values for parameters when using the
Scaler
MegaCore function. However, the Scaler II resizes video streams
M 4
--------------
M 2
--------------
Taps
N
N
4
phase
phase
Phases
16
16
16
i
j
=
=
------------------------------------------------------- -
---------------------------------------------------- -
Signed, 1 integer bit, 7 fraction bits
Signed, 1 integer bit, 7 fraction bits
Signed, 1 integer bit, 7 fraction bits
i w
j h
Value
in
in
%w
w
%h
h
out
out
out
out
Precision
P
P
v
h
Chapter 5: Functional Descriptions
May 2011 Altera Corporation
Lanczos-2, or
Bicubic
Lanczos-2
Lanczos-1
Coefficients
α
β
Scaler II
γ
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