多画素高密度CCD採用電子スコープに装備されたデジタル帯域強調処理の有用性

片山 修; 小栗 康平; 大久保 裕雄; 加藤 明; 小林 誠; 市岡 四象; 大井 至; 戸松 成; 長谷川 みち代; 国保 美知子; 海野 寿美; 石浜 信次

doi:10.11641/pdensks.42.0_51

Technology and instrument

Usefulness of Digital Band-Pass Filter Processing by an Electronic Endoscope that Employs a CCD with about 270,000 Pixels

Osamu Katayama, Kouhei Oguri, Yasuo Ohkubo, Akira Katoh, Makoto Kobayashi, Shisho Ichioka, Itaru Ohi, Sei Tomatsu, Michiyo Hasegawa, Michiko Kokuho, Sumi Unno, Shinji Ishihama

Author information

Osamu Katayama
Department of Internal Medicine, Saitamaken Saiseikai Kurihashi Hospital
Kouhei Oguri
Department of Internal Medicine, Saitamaken Saiseikai Kurihashi Hospital
Yasuo Ohkubo
Department of Internal Medicine, Saitamaken Saiseikai Kurihashi Hospital
Akira Katoh
Department of Internal Medicine, Saitamaken Saiseikai Kurihashi Hospital
Makoto Kobayashi
Department of Internal Medicine, Saitamaken Saiseikai Kurihashi Hospital
Shisho Ichioka
Tokyo Kamisho Kenkouhoken-Kumiai Clinic
Itaru Ohi
Central Clinical Laboratory, Tokyo Women's Medical University Daini Hospital
Sei Tomatsu
Central Clinical Laboratory, Tokyo Women's Medical University Daini Hospital
Michiyo Hasegawa
Central Clinical Laboratory, Tokyo Women's Medical University Daini Hospital
Michiko Kokuho
Central Clinical Laboratory, Tokyo Women's Medical University Daini Hospital
Sumi Unno
Central Clinical Laboratory, Tokyo Women's Medical University Daini Hospital
Shinji Ishihama
Toshiba Medical Corporation

JOURNAL FREE ACCESS

1993 Volume 42 Pages 51-53

DOI https://doi.org/10.11641/pdensks.42.0_51

Details

Abstract

We performed 1,154 image processings by using a newly developed electronic endoscope TV-Endoscope TRE-3000 (Toshiba Co, Ltd) since June to November in 1992.
The endoscope employs a CCD with about 270,000 pixels and enables us to perform 4 levels of digital band-pass filtering as structural enhancement in real-time. The peak frequency (horizontal) of the processing was set to 4.3 MHz. The band-pass filtering clarified the fine mucosal pattern and the fine vascular pattern in proportion to the gain level.

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