Datasheet > LF2301JC25

LF2301JC25

更新时间： 2024-11-21 22:31:23

品牌	Logo	应用领域
逻辑 - LOGIC		/
页数	文件大小	规格书
18页	336K
描述
Image Resampling Sequencer

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中文翻译

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数据手册

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LF2301JC25 数据手册

LF2301

DEVICES INCORPORATED

Image Resampling Sequencer

LF2301

Image Resampling Sequencer

DEVICES INCORPORATED

FEATURES

DESCRIPTION

The LF2301 is a self-sequencing

address generator designed to filter

a two-dimensional image or remap

and resample it from one set of

Cartesian coordinates (x,y) into a

new set (u,v).

DETAILS OF OPERATION

❑ 40 MHz Clock Rate

❑ High-SpeedImageManipulation

Most video applications use a pair

of LF2301s in tandem to construct

an ITS. One LF2301 is the row

coordinate generator (x to u) and the

other is the column generator (y to

v). External RAM is needed for

storage of the interpolation coeffi-

❑ Maximum Image Size: 4096 x 4096

Pixels

❑ Supports Following Interpolation

Algorithms:

The LF2301 can resample digitized

images or perform such manipula-

tions as rotation, panning, zooming, cient lookup table, as well as for

and warping as well as compression buffers of the source and destination

• Nearest-Neighbor

• Bilinear Interpolation

• Cubic Convolution

❑ Applications:

in real-time.

images. An external Multiplier-

Accumulator is required when

performing interpolation or imple-

menting static filters.

• Video Special-Effects

• Image Recognition

By using two LF2301s in a Image

Transformation System (ITS),

nearest-neighbor, bilinear interpola-

tion, and cubic convolution algo-

rithms, with kernel sizes up to 4 x 4

• High-Speed Data Encoding/

Decoding

❑ Replaces TRW/Raytheon/Fairchild

The ITS is capable of performing the

general second-order coordinate

TMC2301

pixels, are all possible (see Figure 1). transformation of the form:

This system can also implement

❑ 68-pinPLCC, J-Lead

x(u,v) = Au²+Bu+Cuv+Dv²+Ev+F

simple static filters with kernel sizes

y(u,v) = Gu²+Hu+Kuv+Lv²+Mv+N

up to 16 x 16 pixels.

where parameters A through N of

the transform are user-defined.

The system steps sequentially

through each pixel in the “target”

image lying within a user-defined

rectangle. For each “target” pixel

at (u,v), the LF2301 points to a

corresponding “source” pixel at

(x,y).

LF2301 BLOCK DIAGRAM

LDR

WEN

3-0

11-0

NOOP

INTER

INIT

ACC

DONE

END

PARAMETER

STORAGE

CONTROL

WALK COUNT

TARGET

ADDRESS

SOURCE

ADDRESS

INPUT IMAGE

BOUNDARY

GENERATOR

COMPARATOR

FRACTION

INTEGER

OETA

CA7-0

X11-0

U11-0

CZERO

UWRI

Video Imaging Products

08/16/2000–LDS.2301-H

2-1

12 3 4 5 6 7...18

中文翻译

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与LF2301JC25相关器件

型号	品牌	获取价格	描述	数据表
LF2301JC55	LOGIC	获取价格	Image Resampling Sequencer
LF2301JC66	LOGIC	获取价格	Video Imager, 12-Bit, CMOS, PQCC68, 0.990 X 0.990 INCH, PLASTIC, MO-047-AE, LCC-68
LF2304NTR	LITTELFUSE	获取价格	半桥栅极驱动器集成电路功能与特色: 应用:
LF-230FU	NEC	获取价格	Noise Filters
LF-230N	KEMET	获取价格	Mains Filter,
LF-230N	NEC	获取价格	Noise Filters
LF-230P	NEC	获取价格	Noise Filters
LF230VD	ETC	获取价格	PANELITE Enclosure Lights Overview
LF230VM	ETC	获取价格	PANELITE Enclosure Lights Overview
LF231RW	MPD	获取价格	Miniature SMT, 2W Wide Input Range DC/DC Converters

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