M64283FP データシートの表示（PDF） - MITSUBISHI ELECTRIC

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M64283FP

Image Sensor (Artificial Retina Chip)

MITSUBISHI ELECTRIC  

Semiconductor Technical Data

MITSUBISHI

Mitsubishi Integrated Circuit <Linear IC>

M64283FP

Image Sensor (Artificial Retina Chip)

N VH1 VH0 E3

11 01

N VH1 VH0 E3

11 00

0 -1 0

0 20

0 -1 0

0 -1 0

0 30

0 -1 0

(a) Vertical edge

(b) Vertical edge enhancement

Figure 11. Example of Edge Enhancement 2 (Vertical edge)

N VH1 VH0 E3

11 11

N VH1 VH0 E3

11 10

0 -1 0

-1 4 -1

0 -1 0

0 -1 0

-1 5 -1

0 -1 0

(a) Two-dimensional edge

(b) Two-dimensional edge enhancement

Figure 12. Example of Edge Enhancement 3 (Two-dimensional edge)

Using N, VH and E registers, a convolution of 3 x 3 size can be achieved as shown in Figure 10, Figure 11

and Figure 12. An edge image can be obtained by taking the difference between the center pixel P and

the neighbor Mn, Ms, Mw and Me.

Edge mode

Output signal

Vertical edge image

Horizontal edge image

Two-dimensional edge

image

Vertical edge

enhancement image

{(P-MN)+ (P-MS)} × α

{(P-Mw)+(P-ME)} × α

{(P-MN)+(P-MS)+(P-ME)+(P-MW)} × α

P +{(P-MN)+(P-MS)} × α

Number of

output pixels

128(H)×128(V)

128(H)×128(V)

128(H)×128(V)

Number of

valid pixels

128(H)×126(V)

128(H)×128(V)

128(H)×126(V)

128(H)×128(V) 128(H)×126(V)

19/35

Specifications and information in this document are subject to change without notice.

Ver. 2. 2. 3

07/22/1998

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