JPS6421455U - - Google Patents
Info
- Publication number
- JPS6421455U JPS6421455U JP11589387U JP11589387U JPS6421455U JP S6421455 U JPS6421455 U JP S6421455U JP 11589387 U JP11589387 U JP 11589387U JP 11589387 U JP11589387 U JP 11589387U JP S6421455 U JPS6421455 U JP S6421455U
- Authority
- JP
- Japan
- Prior art keywords
- character
- circuit
- extraction circuit
- image data
- photoelectric conversion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000013139 quantization Methods 0.000 claims description 3
- 238000003384 imaging method Methods 0.000 claims description 2
- 238000000605 extraction Methods 0.000 claims 7
- 239000000284 extract Substances 0.000 claims 2
- 230000003287 optical effect Effects 0.000 claims 2
- 238000000034 method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 1
Landscapes
- Character Input (AREA)
Description
第１図は本考案の一実施例の構成を示すブロツ
ク図、第２図は本実施例のイメージバツフアの格
納内容を示す図である。
２２…照明用ランプ、２３…結像レンズ、２４
…光電変換素子、２５…量子化回路、２６…イメ
ージバツフア、２７…文字切出回路、２８…単語
切出回路、２９…文字認識回路、３１，３２…シ
ヤツタプレート。
FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention, and FIG. 2 is a diagram showing the contents stored in the image buffer of this embodiment. 22...Lamp for illumination, 23...Imaging lens, 24
...Photoelectric conversion element, 25...Quantization circuit, 26...Image buffer, 27...Character cutting circuit, 28...Word cutting circuit, 29...Character recognition circuit, 31, 32...Shutter plate.
Claims (1)
換する光電変換素子と、帳票からの反射光を前記
光電変換素子に結像させる結像レンズと、走査線
を副走査方向に移動させる副走査機構と、有効範
囲を特定するために帳票上の所望の認識対象以外
からの反射光を遮断する可動なシヤツタプレート
とを少なくとも含んで一体化したユニツトと、 前記光電変換素子の出力をアナログ的に処理し
、かつ量子化を行う量子化回路と、 該量子化回路で量子化されたイメージデータを
一時格納するイメージバツフアと、 前記イメージデータから所定の文字切出アルゴ
リズムで文字切出を行う文字切出回路と、 該文字切出回路で得た文字データより単語切出
を行う単語切出回路と、 前記文字切出回路からの文字データと前記単語
切出回路からの単語データに基いて文字認識を行
う文字認識回路とを有し、 前記シヤツタプレートを調節して有効走査範囲
を特定し、前記単語切出回路は前記イメージバツ
フア回路に格納されたイメージデータのうち特定
された有効走査範囲の境界に相当する線に接する
イメージデータを有する単語は認識対象外するこ
とを特徴とする光学式文字読取装置。[Claims for Utility Model Registration] A light source that illuminates a form, a photoelectric conversion element that converts an optical signal into an electrical signal, an imaging lens that forms an image of reflected light from the form on the photoelectric conversion element, and a scanning line. an integrated unit including at least a sub-scanning mechanism that moves in the sub-scanning direction and a movable shutter plate that blocks reflected light from other than the desired recognition target on the form in order to specify the effective range; A quantization circuit that processes and quantizes the output of the photoelectric conversion element in an analog manner; an image buffer that temporarily stores image data quantized by the quantization circuit; and a predetermined character cutter from the image data. a character extraction circuit that extracts characters using a character extraction algorithm; a word extraction circuit that extracts words from character data obtained by the character extraction circuit; and character data from the character extraction circuit and the word extraction circuit. and a character recognition circuit that performs character recognition based on word data from the circuit, the shutter plate is adjusted to specify an effective scanning range, and the word extraction circuit is stored in the image buffer circuit. An optical character reading device characterized in that words having image data touching a line corresponding to a boundary of a specified effective scanning range among image data are excluded from recognition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987115893U JPH0615327Y2 (en) | 1987-07-30 | 1987-07-30 | Optical character reader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987115893U JPH0615327Y2 (en) | 1987-07-30 | 1987-07-30 | Optical character reader |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6421455U true JPS6421455U (en) | 1989-02-02 |
| JPH0615327Y2 JPH0615327Y2 (en) | 1994-04-20 |
Family
ID=31357950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987115893U Expired - Lifetime JPH0615327Y2 (en) | 1987-07-30 | 1987-07-30 | Optical character reader |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0615327Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61253973A (en) * | 1985-05-07 | 1986-11-11 | Toshiba Corp | Image input device |
| JPS61292469A (en) * | 1985-06-20 | 1986-12-23 | Ricoh Co Ltd | Portable image reader |
-
1987
- 1987-07-30 JP JP1987115893U patent/JPH0615327Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61253973A (en) * | 1985-05-07 | 1986-11-11 | Toshiba Corp | Image input device |
| JPS61292469A (en) * | 1985-06-20 | 1986-12-23 | Ricoh Co Ltd | Portable image reader |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0615327Y2 (en) | 1994-04-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0903930A3 (en) | Image reading apparatus | |
| JPS6421455U (en) | ||
| JPH0365709B2 (en) | ||
| WO1992020182A3 (en) | Scanner camera with focusing system and preferably digital signal output with a printer for use as a photocopy machine | |
| KR910008444A (en) | Video camera | |
| JPH0282168U (en) | ||
| JPH03119255U (en) | ||
| JPH0266072U (en) | ||
| JPS63299570A (en) | Hand scanner | |
| JPH0324762U (en) | ||
| JPH0277963U (en) | ||
| JPS57159380A (en) | Optical character reader | |
| JPS63204488A (en) | Optical character reader | |
| JPH0450973U (en) | ||
| JPH03123360U (en) | ||
| JPS63175270U (en) | ||
| JPS6387944U (en) | ||
| JPH0419062U (en) | ||
| JPH01179658U (en) | ||
| JPH03109471U (en) | ||
| JPH0266073U (en) | ||
| JPH02150872U (en) | ||
| JPH0236260U (en) | ||
| JPS5450218A (en) | Manuscript reader | |
| JPH03130659U (en) |