JP2010268525A5 - - Google Patents
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- JP2010268525A5 JP2010268525A5 JP2010192609A JP2010192609A JP2010268525A5 JP 2010268525 A5 JP2010268525 A5 JP 2010268525A5 JP 2010192609 A JP2010192609 A JP 2010192609A JP 2010192609 A JP2010192609 A JP 2010192609A JP 2010268525 A5 JP2010268525 A5 JP 2010268525A5
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- change amount
- evaluation value
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- 238000011156 evaluation Methods 0.000 claims 36
- 230000000875 corresponding Effects 0.000 claims 7
- 238000001514 detection method Methods 0.000 claims 4
Claims (11)
前記変化量および前記各フレーム画像間の時間間隔に基づいて、前記変化量および前記各フレーム画像間の時間間隔に応じた時間変化量を割り出し、当該時間変化量を用いて前記入力映像信号の動きの滑らかさに関する評価値を算出して外部に出力する評価値算出手段とを備え、
前記評価値算出手段は、前記変化量に前記時間間隔を乗じて前記時間変化量を算出し、算出された前記時間変化量をＳｎとした場合に、式α／Ｓｎ（αは定数）又は式ａ×ｅｘｐ −ｂＳｎ ＋ｃ（ａ，ｂ，ｃは定数）により前記評価値を算出する、
ことを特徴とする映像評価装置。 Based on a plurality of frame images included in the input video signal, change amount detection means for detecting a change amount indicating the degree of change between the frame images,
Based on the change amount and the time interval between the frame images, a time change amount corresponding to the change amount and the time interval between the frame images is determined, and the movement of the input video signal is performed using the time change amount. An evaluation value calculation means for calculating an evaluation value related to the smoothness of the image and outputting it to the outside ,
The evaluation value calculating means calculates the time change amount by multiplying the change amount by the time interval, and when the calculated time change amount is Sn, the expression α / Sn (α is a constant) or the expression The evaluation value is calculated by a × exp −bSn + c (a, b, and c are constants).
A video evaluation apparatus characterized by that.
前記評価値算出手段は、前記動き特徴値および前記各フレーム画像間の時間間隔に基づいて、前記評価値を算出することを特徴とする請求項１記載の映像評価装置。 Further comprising a feature value calculating means for calculating a motion feature value indicating a motion feature of the input video signal based on the change amount;
The video evaluation apparatus according to claim 1, wherein the evaluation value calculation unit calculates the evaluation value based on the motion feature value and a time interval between the frame images.
前記動き特徴値は、前記動きベクトルの大きさに基づいて算出される値であることを特徴とする請求項４または５に記載の映像評価装置。 The amount of change is a motion vector between the frame images,
The video evaluation apparatus according to claim 4 , wherein the motion feature value is a value calculated based on a magnitude of the motion vector.
入力映像信号に含まれる複数のフレーム画像に基づいて、前記各フレーム画像間における変化の度合いを示す変化量を検出する変化量検出手段と、
前記変化量および前記第１のフレームレートに対応するフレーム画像間の時間間隔に基づいて、前記変化量および前記各フレーム画像間の時間間隔に応じた時間変化量を割り出し、当該時間変化量を用いて前記入力映像信号の動きの滑らかさに関する評価値を算出する評価値算出手段と、
前記評価値を用いて、前記入力映像信号の処理を行う第２のフレームレートを決定して外部に出力するフレームレート決定手段とを備え、
前記評価値算出手段は、前記変化量に前記時間間隔を乗じて前記時間変化量を算出し、算出された前記時間変化量をＳｎとした場合に、式α／Ｓｎ（αは定数）又は式ａ×ｅｘｐ −ｂＳｎ ＋ｃ（ａ，ｂ，ｃは定数）により前記評価値を算出する、
ことを特徴とするフレームレート決定装置。 Frame rate generating means for generating a first frame rate;
Based on a plurality of frame images included in the input video signal, change amount detection means for detecting a change amount indicating the degree of change between the frame images,
Based on the time interval between frame images corresponding to the change amount and the first frame rate, a time change amount corresponding to the change amount and the time interval between the frame images is determined, and the time change amount is used. an evaluation value calculation means for calculating an evaluation value relating to the smoothness in movement of the input video signal Te,
A frame rate determining unit that determines a second frame rate for processing the input video signal using the evaluation value and outputs the second frame rate to the outside ;
The evaluation value calculating means calculates the time change amount by multiplying the change amount by the time interval, and when the calculated time change amount is Sn, the expression α / Sn (α is a constant) or the expression The evaluation value is calculated by a × exp −bSn + c (a, b, and c are constants).
A frame rate determining apparatus characterized by that.
第１のフレームレートを発生するフレームレート発生手段と、
前記入力映像信号に含まれる複数のフレーム画像に基づいて、前記各フレーム画像間における変化の度合いを示す変化量を検出する変化量検出手段と、
前記変化量および前記第１のフレームレートに対応するフレーム画像間の時間間隔に基づいて、前記変化量および前記各フレーム画像間の時間間隔に応じた時間変化量を割り出し、当該時間変化量を用いて前記入力映像信号の動きの滑らかさに関する評価値を算出する評価値算出手段と、
前記評価値を用いて、前記入力映像信号の処理を行う第２のフレームレートを決定するフレームレート決定手段と、
前記第２のフレームレートを用いて、前記バッファ手段により記憶されている前記入力映像信号を読み込んで映像処理を行う映像処理手段とを備え、
前記評価値算出手段は、前記変化量に前記時間間隔を乗じて前記時間変化量を算出し、算出された前記時間変化量をＳｎとした場合に、式α／Ｓｎ（αは定数）又は式ａ×ｅｘｐ −ｂＳｎ ＋ｃ（ａ，ｂ，ｃは定数）により前記評価値を算出する、
ことを特徴とする映像処理装置。 Buffer means for storing an input video signal;
Frame rate generating means for generating a first frame rate;
Based on a plurality of frame images included in the input video signal, change amount detection means for detecting a change amount indicating the degree of change between the frame images;
Based on the time interval between frame images corresponding to the change amount and the first frame rate, a time change amount corresponding to the change amount and the time interval between the frame images is determined, and the time change amount is used. an evaluation value calculation means for calculating an evaluation value relating to the smoothness in movement of the input video signal Te,
Frame rate determining means for determining a second frame rate for processing the input video signal using the evaluation value;
Video processing means for performing video processing by reading the input video signal stored by the buffer means using the second frame rate ;
The evaluation value calculating means calculates the time change amount by multiplying the change amount by the time interval, and when the calculated time change amount is Sn, the expression α / Sn (α is a constant) or the expression The evaluation value is calculated by a × exp −bSn + c (a, b, and c are constants).
A video processing apparatus characterized by that.
前記変化量および前記各フレーム画像間の時間間隔に基づいて、前記変化量および前記各フレーム画像間の時間間隔に応じた時間変化量を割り出し、当該時間変化量を用いて前記入力映像信号の動きの滑らかさに関する評価値を算出して外部に出力する評価値算出ステップとを有し、
前記評価値算出ステップは、前記変化量に前記時間間隔を乗じて前記時間変化量を算出し、算出された前記時間変化量をＳｎとした場合に、式α／Ｓｎ（αは定数）又は式ａ×ｅｘｐ −ｂＳｎ ＋ｃ（ａ，ｂ，ｃは定数）により前記評価値を算出する、
ことを特徴とする映像評価方法。 Based on a plurality of frame images included in the input video signal, a change amount detecting step for detecting a change amount indicating a degree of change between the frame images;
Based on the change amount and the time interval between the frame images, a time change amount corresponding to the change amount and the time interval between the frame images is determined, and the movement of the input video signal is performed using the time change amount. An evaluation value calculation step of calculating an evaluation value related to the smoothness of the image and outputting it to the outside ,
The evaluation value calculating step calculates the time change amount by multiplying the change amount by the time interval, and when the calculated time change amount is Sn, α / Sn (α is a constant) or The evaluation value is calculated by a × exp −bSn + c (a, b, and c are constants).
A video evaluation method characterized by the above.
入力映像信号に含まれる複数のフレーム画像に基づいて、前記各フレーム画像間における変化の度合いを示す変化量を検出する変化量検出手段と、
前記変化量および前記各フレーム画像間の時間間隔に基づいて、前記変化量および前記各フレーム画像間の時間間隔に応じた時間変化量を割り出し、当該時間変化量を用いて前記入力映像信号の動きの滑らかさに関する評価値を算出して外部に出力する評価値算出手段として機能させ、
前記評価値算出手段は、前記変化量に前記時間間隔を乗じて前記時間変化量を算出し、算出された前記時間変化量をＳｎとした場合に、式α／Ｓｎ（αは定数）又は式ａ×ｅｘｐ −ｂＳｎ ＋ｃ（ａ，ｂ，ｃは定数）により前記評価値を算出する、
ことを特徴とする映像評価プログラム。
Computer
Based on a plurality of frame images included in the input video signal, change amount detection means for detecting a change amount indicating the degree of change between the frame images,
Based on the change amount and the time interval between the frame images, a time change amount corresponding to the change amount and the time interval between the frame images is determined, and the movement of the input video signal is performed using the time change amount. calculating an evaluation value relating to the smoothness of the made to function as an evaluation value calculation means for output to the outside,
The evaluation value calculating means calculates the time change amount by multiplying the change amount by the time interval, and when the calculated time change amount is Sn, the expression α / Sn (α is a constant) or the expression The evaluation value is calculated by a × exp −bSn + c (a, b, and c are constants).
A video evaluation program characterized by this .
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| Application Number | Priority Date | Filing Date | Title |
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| JP2010192609A JP5101673B2 (en) | 2004-09-16 | 2010-08-30 | Video evaluation device, frame rate determination device, video processing device, video evaluation method, and video evaluation program |
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| JP2010192609A JP5101673B2 (en) | 2004-09-16 | 2010-08-30 | Video evaluation device, frame rate determination device, video processing device, video evaluation method, and video evaluation program |
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| JP2005229618A Division JP2006115470A (en) | 2004-09-16 | 2005-08-08 | Video evaluation device, frame rate determination device, video process device, video evaluation method, and video evaluation program |
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| Publication Number | Publication Date |
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| JP2010268525A JP2010268525A (en) | 2010-11-25 |
| JP2010268525A5 true JP2010268525A5 (en) | 2011-12-15 |
| JP5101673B2 JP5101673B2 (en) | 2012-12-19 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20080022276A (en) * | 2006-09-06 | 2008-03-11 | 엘지전자 주식회사 | Method and apparatus for controlling screen of (an) image display device |
| JP5315162B2 (en) * | 2009-08-05 | 2013-10-16 | 株式会社日立製作所 | Video processing apparatus and video processing method |
| CN108322737B (en) * | 2018-02-08 | 2020-02-14 | Oppo广东移动通信有限公司 | Method and device for measuring camera shooting frame rate |
| TW201942870A (en) | 2018-04-03 | 2019-11-01 | 香港商科科串流股份有限公司 | Bitrate optimization system and method |
| JP7273460B2 (en) * | 2018-04-11 | 2023-05-15 | シャープ株式会社 | Video processing device, video processing method, television receiver, control program, and recording medium |
| CN113347487B (en) * | 2021-06-17 | 2022-09-27 | 微微科技有限公司 | Low-power browser sequence diagram video method and terminal for automatic compatible equipment |
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| JP3558384B2 (en) * | 1994-10-12 | 2004-08-25 | 三菱電機株式会社 | Video recording and playback method |
| JP3542911B2 (en) * | 1998-08-24 | 2004-07-14 | 日本電気株式会社 | Video compression device |
| US6618439B1 (en) * | 1999-07-06 | 2003-09-09 | Industrial Technology Research Institute | Fast motion-compensated video frame interpolator |
| JP2001245303A (en) * | 2000-02-29 | 2001-09-07 | Toshiba Corp | Moving picture coder and moving picture coding method |
| KR100850705B1 (en) * | 2002-03-09 | 2008-08-06 | 삼성전자주식회사 | Method for adaptive encoding motion image based on the temperal and spatial complexity and apparatus thereof |
| US7151856B2 (en) * | 2002-04-25 | 2006-12-19 | Matsushita Electric Industrial Co., Ltd. | Picture coding apparatus and picture coding method |
| KR100467625B1 (en) * | 2003-02-03 | 2005-01-24 | 삼성전자주식회사 | Image processing apparatus and method using frame-rate conversion |
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