JP2743283B2 - Imaging device - Google Patents

Imaging device

Info

Publication number
JP2743283B2
JP2743283B2 JP1124559A JP12455989A JP2743283B2 JP 2743283 B2 JP2743283 B2 JP 2743283B2 JP 1124559 A JP1124559 A JP 1124559A JP 12455989 A JP12455989 A JP 12455989A JP 2743283 B2 JP2743283 B2 JP 2743283B2
Authority
JP
Japan
Prior art keywords
compression
program
imaging device
imaging
compression program
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.)
Expired - Fee Related
Application number
JP1124559A
Other languages
Japanese (ja)
Other versions
JPH02305189A (en
Inventor
博之 堀井
秀明 河村
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
Original Assignee
Canon Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Canon Inc filed Critical Canon Inc
Priority to JP1124559A priority Critical patent/JP2743283B2/en
Priority to EP90303076A priority patent/EP0390421B1/en
Priority to DE69010366T priority patent/DE69010366T2/en
Priority to CA002012966A priority patent/CA2012966C/en
Priority to KR1019900004239A priority patent/KR940003932B1/en
Publication of JPH02305189A publication Critical patent/JPH02305189A/en
Priority to US08/333,868 priority patent/US5764286A/en
Priority to US09/027,100 priority patent/US6859226B2/en
Application granted granted Critical
Publication of JP2743283B2 publication Critical patent/JP2743283B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、撮像手段によて得られた画像信号を圧縮す
る圧縮手段を有するスチルビデオカメラ等の撮像装置に
関するものである。
Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an imaging apparatus such as a still video camera having a compression unit for compressing an image signal obtained by an imaging unit.

〔従来の技術〕[Conventional technology]

従来、スチルビデオカメラにおいては、画像の持って
いる情報量が非常に大きく、1枚当りの画像の情報量を
小さくするため、又1メモリカートリッジ当りの格納画
像枚数を大きくするために画像の圧縮手段を内蔵してい
た。
2. Description of the Related Art Conventionally, in a still video camera, the amount of information held by an image is very large, and image compression is performed in order to reduce the amount of information per image and to increase the number of stored images per memory cartridge. Built-in means.

〔発明が解決しようとする課題〕[Problems to be solved by the invention]

しかしながら、前記従来例においては、カメラに内蔵
している圧縮手段は固定的なものであり、複数の圧縮方
式を選択的に切換えたり、圧縮方式を更新したりするこ
とは不可能であった。
However, in the conventional example, the compression means built in the camera is fixed, and it is impossible to selectively switch among a plurality of compression methods or update the compression method.

本発明は、このような状況のもとでなされたもので、
圧縮プログラムを任意に変更できる撮像装置を提供する
ことを目的とするものである。
The present invention has been made under such circumstances,
It is an object of the present invention to provide an imaging device capable of arbitrarily changing a compression program.

〔課題を解決するための手段〕[Means for solving the problem]

前記目的を達成するため、本発明では、撮像装置を次
の(1)のとおりに構成する。
In order to achieve the above object, in the present invention, the imaging device is configured as in the following (1).

(1)被写体像を電気的な画像信号に変換する撮像手段
と、該撮像手段によって得られた画像信号を圧縮するた
めの圧縮手段と、該圧縮手段における圧縮プログラムを
書き換え可能に記憶する圧縮プログラム記憶手段と、該
圧縮プログラム記憶手段に記憶された圧縮プログラムを
書き換えるための書き換え制御を行う書き換え制御手段
と、前記書き換え制御手段に対して撮像装置外部から書
き換え用の圧縮プログラムを供給するためのインターフ
ェース手段と、を有する撮像装置。
(1) Imaging means for converting a subject image into an electric image signal, compression means for compressing an image signal obtained by the imaging means, and a compression program for rewritably storing a compression program in the compression means Storage means, rewrite control means for performing rewrite control for rewriting the compression program stored in the compression program storage means, and an interface for supplying the rewrite control means with a rewrite compression program from outside the imaging device And an imaging device.

〔作用〕[Action]

前記(1)の構成によれば、撮像装置外から書き換え
用の圧縮プログラムを供給し、装置の圧縮プログラムを
任意に変更できる。
According to the configuration (1), a compression program for rewriting is supplied from outside the imaging apparatus, and the compression program of the apparatus can be arbitrarily changed.

〔実施例〕〔Example〕

以下本発明を実施例により説明する。 Hereinafter, the present invention will be described with reference to examples.

第1図は本発明の一実施例である“スチルビデオカメ
ラ”のブロック図であり、第2図は同実施例の動作を示
すフローチャートである。
FIG. 1 is a block diagram of a "still video camera" according to an embodiment of the present invention, and FIG. 2 is a flowchart showing the operation of the embodiment.

第1図において、1はレンズ、2はレンズ1において
結像された像を光電変換するところのCCD(固体撮像素
子)、3はCCD2より出力された信号を処理する信号処理
部、4は信号処理部3より出力された信号をディジタル
化するA/D変換器、5はディジタル化された画像信号を
圧縮するデータ圧縮部、6はコネクタ、7はカメラ本体
に着脱可能なメモリカートリッジ(記憶素子)、8は全
体を制御するタイミング制御回路及びシステムコントロ
ール部(以下シスコンという)である。
In FIG. 1, reference numeral 1 denotes a lens, 2 denotes a CCD (solid-state imaging device) for photoelectrically converting an image formed by the lens 1, 3 denotes a signal processing unit for processing a signal output from the CCD 2, and 4 denotes a signal. An A / D converter for digitizing the signal output from the processing unit 3, a data compression unit 5 for compressing the digitized image signal, a connector 6 and a memory cartridge 7 (removable element) detachable from the camera body. ) And 8 are a timing control circuit and a system control unit (hereinafter referred to as a system controller) for controlling the whole.

データ圧縮部5の中には、圧縮方式を決定するプログ
ラムROMが内蔵されていて、このROMに書き換え可能なEE
PROM(electrically erasable programmable read only
memoly)を用いている。メモリカートリッジは、撮像
用のものと、圧縮プログラム用のものがあり、後者のも
のの時には、シスコン8によって、データ圧縮部5の中
のEEPROMの内容が圧縮プログラムカートリッジの内容に
書き換えられる。
The data compression unit 5 has a built-in program ROM for determining a compression method, and rewritable EE is used for this ROM.
PROM (electrically erasable programmable read only
memoly). There are memory cartridges for imaging and compression programs. In the latter case, the contents of the EEPROM in the data compression section 5 are rewritten by the system controller 8 to the contents of the compression program cartridge.

第2図は、本実施例の動作を示すフローチャートであ
る。
FIG. 2 is a flowchart showing the operation of the present embodiment.

イニシャライズ(S101)が行われた後、メモリカート
リッジが挿入されたら(S102)、撮像用のものか又は圧
縮プログラム用のものかを判別し(S103)、圧縮プログ
ラム用のものであれば、圧縮コード番号を書き込み(S1
04)、圧縮プログラムをEEPROMに転送していく(S10
5)。これが終了したら終了表示を行う(S106)。又、
撮像用のものであれば、シャッタ動作によって(S110)
圧縮番号(S111)と共に撮像データを書き込む(S11
2)。
After the initialization (S101), if the memory cartridge is inserted (S102), it is determined whether the memory cartridge is for imaging or for a compression program (S103). Write the number (S1
04), and transfer the compressed program to EEPROM (S10
Five). When this is completed, an end display is performed (S106). or,
If it is for imaging, by shutter operation (S110)
The imaging data is written together with the compression number (S111) (S11
2).

このようにして、ビデオ信号の圧縮に用いるプログラ
ムを、カメラ外から、カートリッジにより電気信号の形
で書き込み、書き換えることができる。
In this way, a program used for compressing a video signal can be written and rewritten from the outside of the camera in the form of an electric signal using a cartridge.

なお、カメラにプログラム入力用端子を設け、適宜の
装置より圧縮のためのプログラムを電気信号の形で供給
し、データ圧縮部のEEPROMのプログラムを書き換えても
よい。
Note that a program input terminal may be provided in the camera, a compression program may be supplied from an appropriate device in the form of an electric signal, and the EEPROM program of the data compression unit may be rewritten.

〔発明の効果〕〔The invention's effect〕

以上説明したように、本発明によれば、撮像装置単独
で画像の圧縮処理ができると共に、この圧縮処理のため
の圧縮プログラムを、例えば最新バージョンのものにす
る、あるいは撮影対象,用途に応じたものにすることが
できる。
As described above, according to the present invention, it is possible to perform image compression processing by an imaging apparatus alone, and to set a compression program for this compression processing to, for example, the latest version, or according to an imaging target and use. Can be something.

【図面の簡単な説明】[Brief description of the drawings]

第1図は本発明の実施例のブロック図、第2図は同実施
例の動作を示すフローチャートである。 2……CCD(撮像素子) 4……A/D変換器 5……データ圧縮部 7……メモリカートリッジ
FIG. 1 is a block diagram of an embodiment of the present invention, and FIG. 2 is a flowchart showing the operation of the embodiment. 2 ... CCD (imaging element) 4 ... A / D converter 5 ... Data compression unit 7 ... Memory cartridge

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】被写体像を電気的な画像信号に変換する撮
像手段と、 該撮像手段によて得られた画像信号を圧縮するための圧
縮手段と、 該圧縮手段における圧縮プログラムを書き換え可能に記
憶する圧縮プログラム記憶手段と、 該圧縮プログラム記憶手段に記憶された圧縮プログラム
を書き換えるための書き換え制御を行う書き換え制御手
段と、 前記書き換え制御手段に対して撮像装置外部から書き換
え用の圧縮プログラムを供給するためのインターフェー
ス手段と、 を有することを特徴とする撮像装置。
1. An image pickup means for converting a subject image into an electric image signal, a compression means for compressing an image signal obtained by the image pickup means, and a compression program in the compression means being rewritable. Compression program storage means for storing, rewrite control means for performing rewrite control for rewriting the compression program stored in the compression program storage means, supply of a rewrite compression program to the rewrite control means from outside the imaging device An imaging device, comprising:
JP1124559A 1989-03-30 1989-05-19 Imaging device Expired - Fee Related JP2743283B2 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP1124559A JP2743283B2 (en) 1989-05-19 1989-05-19 Imaging device
EP90303076A EP0390421B1 (en) 1989-03-30 1990-03-22 Still video camera
DE69010366T DE69010366T2 (en) 1989-03-30 1990-03-22 Still video camera.
CA002012966A CA2012966C (en) 1989-03-30 1990-03-23 Still video camera
KR1019900004239A KR940003932B1 (en) 1989-03-30 1990-03-29 Still video camera
US08/333,868 US5764286A (en) 1989-03-30 1994-11-03 Still video camera having plural selectable data compression circuits
US09/027,100 US6859226B2 (en) 1989-03-30 1998-02-20 Camera with first and second compression units and with a digital capture unit providing an output to the first or second compression unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1124559A JP2743283B2 (en) 1989-05-19 1989-05-19 Imaging device

Publications (2)

Publication Number Publication Date
JPH02305189A JPH02305189A (en) 1990-12-18
JP2743283B2 true JP2743283B2 (en) 1998-04-22

Family

ID=14888476

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1124559A Expired - Fee Related JP2743283B2 (en) 1989-03-30 1989-05-19 Imaging device

Country Status (1)

Country Link
JP (1) JP2743283B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2921879B2 (en) * 1989-09-29 1999-07-19 株式会社東芝 Image data processing device
JPH07226911A (en) * 1994-02-15 1995-08-22 Eastman Kodak Japan Kk Electronic still camera
JP2002232880A (en) * 2001-01-30 2002-08-16 Sony Corp Terminal and method for processing picture, recording medium and program

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02222281A (en) * 1989-02-23 1990-09-05 Toshiba Corp Electronic camera equipment
JP2987154B2 (en) * 1989-04-20 1999-12-06 オリンパス光学工業株式会社 Electronic still camera

Also Published As

Publication number Publication date
JPH02305189A (en) 1990-12-18

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