JP5616017B2 - 定ビットレート伝送を提供するインビボ撮像装置 - Google Patents
定ビットレート伝送を提供するインビボ撮像装置 Download PDFInfo
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- JP5616017B2 JP5616017B2 JP2008502556A JP2008502556A JP5616017B2 JP 5616017 B2 JP5616017 B2 JP 5616017B2 JP 2008502556 A JP2008502556 A JP 2008502556A JP 2008502556 A JP2008502556 A JP 2008502556A JP 5616017 B2 JP5616017 B2 JP 5616017B2
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
- A61B5/7232—Signal processing specially adapted for physiological signals or for diagnostic purposes involving compression of the physiological signal, e.g. to extend the signal recording period
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/04—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/04—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
- A61B1/041—Capsule endoscopes for imaging
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/51—Housings
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/183—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a single remote source
- H04N7/185—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a single remote source from a mobile camera, e.g. for remote control
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- Pathology (AREA)
- Public Health (AREA)
- Multimedia (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Optics & Photonics (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Physiology (AREA)
- Psychiatry (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Endoscopes (AREA)
- Closed-Circuit Television Systems (AREA)
- Studio Devices (AREA)
Description
Claims (15)
- イメージャと、
圧縮画像データのフレームよりも小さい容量を有する、画像データを記憶するためのバッファと、
データ圧縮の程度に対応する2以上の動作のモードを有するデータ圧縮モジュールと、
前記バッファの占有レベルを判定する手段と、
前記バッファの占有レベルに基づいて、1つのフレームの伝送に際してインビボ装置のデータ圧縮の程度を変更する手段と、
前記バッファの占有レベルに基づいて、前記イメージャに対し、より低いレートでサンプルを取得する要求を送信する手段と、
送信機と
を含む、データを送信するためのインビボ撮像装置。 - 前記バッファが100バイトから2キロバイトの容量を有する、請求項1に記載のインビボ装置。
- 前記バッファが前記イメージャまたは送信機と一体である、請求項1に記載のインビボ装置。
- 前記送信機がRF送信機である、請求項1に記載のインビボ装置。
- 前記送信機が定ビットレート送信機である、請求項1に記載のインビボ装置。
- 圧縮画像データのフレームよりも小さい容量を有する、バッファを内蔵するインビボ装置からデータを送信するための方法であって、
インビボ装置が、
可変ビットレートで画像データを取得する動作と、
取得した画像データを圧縮する動作と、
圧縮画像データおよびこれに関連する他のデータを含むインビボデータを収集する動作と、
収集したインビボデータを前記バッファに渡す動作と、
前記バッファの占有レベルを判定する動作と、
前記バッファから定ビットレートでデータを送信する動作と、
前記バッファの占有レベルに基づいてイメージャのサンプルレートを変更する動作と、
前記バッファの占有レベルに基づいて1つのフレームの伝送に際してインビボ装置のデータ圧縮の程度を変更する動作と
を行う、方法。 - 定ビットレートが、1メガビット/秒から10メガビット/秒である、請求項6に記載の方法。
- 前記インビボ装置が、データ圧縮の程度、ゼロ値の送信または前記バッファのオーバーフローを表示するマーカを符号化する動作をさらに行う、請求項6に記載の方法。
- 前記インビボ装置が、
前記バッファの占有レベルが第1の閾値を超える場合、前記バッファに送られるデータの量を削減する動作と、
前記バッファの占有レベルが第2の閾値を下回るとき、前記バッファに送られるデータの量を増加する動作と
をさらに行う、請求項6に記載の方法。 - 現在の閾値、バッファの現在の空きおよび現在の動作モードから選択された少なくとも1つの条件に基づいて、前記第1および第2の閾値のうち少なくとも一方を、画像フレームの圧縮過程の間に変更する、請求項9に記載の方法。
- 前記バッファにデータを渡す動作が、圧縮された画像フレーム未満のデータを渡す動作を含む、請求項6に記載の方法。
- 前記インビボ装置が、
前記バッファの占有レベルについて低い閾値と高い閾値とを判定する動作と、
前記バッファの占有レベルが低い閾値を下回る場合、データ圧縮の程度を削減し、前記バッファの占有レベルが高い閾値を上回る場合、データ圧縮の程度を増加する動作と
をさらに行う、請求項6に記載の方法。 - 現在の閾値、バッファの現在の空きおよび現在の動作モードから選択された少なくとも1つの条件に基づいて、前記高いおよび低い閾値のうち少なくとも一方を、画像フレームの圧縮過程の間に変更する、請求項12に記載の方法。
- 前記インビボ装置が、データ圧縮の程度における変更を記録する動作をさらに行う、請求項6に記載の方法。
- 前記データ圧縮の程度を増加する動作が、前記バッファのオーバーフローを回避するように、取得した画像データにおける所定数の行をスキップする動作を含む、請求項12または13に記載の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/087,606 | 2005-03-24 | ||
US11/087,606 US20050187433A1 (en) | 2001-07-26 | 2005-03-24 | In-vivo imaging device providing constant bit rate transmission |
PCT/IL2006/000355 WO2006100671A2 (en) | 2005-03-24 | 2006-03-20 | In-vivo imaging device providing constant bit rate transmission |
Publications (2)
Publication Number | Publication Date |
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JP2008535547A JP2008535547A (ja) | 2008-09-04 |
JP5616017B2 true JP5616017B2 (ja) | 2014-10-29 |
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Application Number | Title | Priority Date | Filing Date |
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JP2008502556A Active JP5616017B2 (ja) | 2005-03-24 | 2006-03-20 | 定ビットレート伝送を提供するインビボ撮像装置 |
Country Status (3)
Country | Link |
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US (1) | US20050187433A1 (ja) |
JP (1) | JP5616017B2 (ja) |
WO (1) | WO2006100671A2 (ja) |
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2005
- 2005-03-24 US US11/087,606 patent/US20050187433A1/en not_active Abandoned
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2006
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- 2006-03-20 JP JP2008502556A patent/JP5616017B2/ja active Active
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US10390017B2 (en) | 2015-05-15 | 2019-08-20 | Olympus Corporation | Compressed image data transmitting device, compressed image data transmitting and receiving system, compressed image data transmitting method, and non-transitory medium saving program |
Also Published As
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WO2006100671A2 (en) | 2006-09-28 |
WO2006100671A3 (en) | 2007-09-20 |
US20050187433A1 (en) | 2005-08-25 |
JP2008535547A (ja) | 2008-09-04 |
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