JP2012028877A5 - - Google Patents
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- JP2012028877A5 JP2012028877A5 JP2010163336A JP2010163336A JP2012028877A5 JP 2012028877 A5 JP2012028877 A5 JP 2012028877A5 JP 2010163336 A JP2010163336 A JP 2010163336A JP 2010163336 A JP2010163336 A JP 2010163336A JP 2012028877 A5 JP2012028877 A5 JP 2012028877A5
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- response function
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Claims (7)
投影された映像を撮像して得られた撮像映像の画素ごとの各色成分の輝度値を計測する投影面輝度計測部と、
前記投影面輝度計測部で計測された画素ごとの各色成分の輝度値に基づいて、映像中の基準点の輝度に対する輝度の変化率を示す配光マップを算出する配光特性算出部と、
前記投影面輝度計測部で計測された画素ごとの各色成分の輝度値を、前記配光マップを用いて正規化して、応答関数を算出する応答関数算出部と、
前記入力又は生成した映像信号の画素ごとの各色成分の輝度値を、前記応答関数及び前記配光マップを利用して補正し、補正された映像信号を得る補正処理部と、
前記補正処理部で補正された映像信号による映像を投影する投影部とを備えたプロジェクタ装置。 A projector device that projects an image based on an input or generated image signal,
A projection surface luminance measurement unit that measures the luminance value of each color component for each pixel of the captured image obtained by imaging the projected image;
Based on the luminance value of each color component for each pixel measured by the projection plane luminance measurement unit, a light distribution characteristic calculation unit that calculates a light distribution map indicating a luminance change rate with respect to the luminance of the reference point in the video;
A response function calculation unit that normalizes the luminance value of each color component for each pixel measured by the projection plane luminance measurement unit using the light distribution map, and calculates a response function;
A correction processing unit that corrects the luminance value of each color component for each pixel of the input or generated video signal using the response function and the light distribution map, and obtains a corrected video signal;
A projector apparatus comprising: a projection unit that projects an image based on the video signal corrected by the correction processing unit.
前記投影面輝度計測部で計測されたリアルタイムの輝度値と、設定された応答関数によって前記補正処理部で補正された映像の輝度値との差から誤差を検出し、その検出された誤差が最小となるように応答関数を補正する
請求項１記載のプロジェクタ装置。 Based on the luminance value of each color component for each pixel measured by the projection plane luminance measurement unit when projecting a reference image in which the luminance values of all the pixels are the same , the response function calculation unit uses the reference response function And performing correction in the correction processing unit using the calculated reference response function as an initial value,
An error is detected from the difference between the real-time luminance value measured by the projection plane luminance measurement unit and the luminance value of the image corrected by the correction processing unit using a set response function, and the detected error is minimized. The projector according to claim 1, wherein the response function is corrected so that
請求項２記載のプロジェクタ装置。The projector device according to claim 2.
前記投影ぶれ検出部で検出した投影ぶれにより、前記補正処理部で補正する画素位置を補正する
請求項１〜３のいずれか１項に記載のプロジェクタ装置。 A projection blur detection unit for detecting blur of an image projected by the projection unit;
The pixel position to be corrected by the correction processing unit is corrected based on the projection blur detected by the projection blur detection unit.
The projector apparatus of any one of Claims 1-3 .
投影された映像を撮像して得られた撮像映像の画素ごとの各色成分の輝度値を計測する投影面輝度計測部と、
前記投影面輝度計測部で計測された画素ごとの各色成分の輝度値に基づいて、映像中の基準点の輝度に対する輝度の変化率を示す配光マップを算出する配光特性算出部と、
前記投影面輝度計測部で計測された画素ごとの各色成分の輝度値を、前記配光マップを用いて正規化して、応答関数を算出する応答関数算出部と、
前記入力又は生成した映像信号の画素ごとの各色成分の輝度値を、前記応答関数及び前記配光マップを利用して補正し、補正された映像信号を得る補正処理部と、
前記補正処理部で補正された映像信号を出力して前記プロジェクタ装置に供給する出力部とを備えた映像信号補正装置。 A video signal correction apparatus that corrects an input or generated video signal according to a projection state and supplies the corrected video signal to a projector apparatus,
A projection surface luminance measurement unit that measures the luminance value of each color component for each pixel of the captured image obtained by imaging the projected image;
Based on the luminance value of each color component for each pixel measured by the projection plane luminance measurement unit, a light distribution characteristic calculation unit that calculates a light distribution map indicating a luminance change rate with respect to the luminance of the reference point in the video;
A response function calculation unit that normalizes the luminance value of each color component for each pixel measured by the projection plane luminance measurement unit using the light distribution map, and calculates a response function;
A correction processing unit that corrects the luminance value of each color component for each pixel of the input or generated video signal using the response function and the light distribution map, and obtains a corrected video signal;
An image signal correction apparatus comprising: an output unit that outputs the image signal corrected by the correction processing unit and supplies the image signal to the projector device.
投影された映像を撮像して得られた撮像映像の画素ごとの各色成分の輝度値を計測する投影面輝度計測処理と、
前記投影面輝度計測処理で計測された画素ごとの各色成分の輝度値に基づいて、映像中の基準点の輝度に対する輝度の変化率を示す配光マップを算出する配光特性算出処理と、
前記投影面輝度計測処理で計測された画素ごとの各色成分の輝度値を、前記配光マップを用いて正規化して、応答関数を算出する応答関数算出処理と、
前記入力した映像信号の画素ごとの各色成分の輝度値を、前記応答関数及び前記配光マップを利用して補正し、補正された映像信号を得、補正された映像信号を投影用の映像信号とする補正処理とを実行する映像信号補正方法。 A video signal correction method for correcting an image based on an input or generated video signal according to a projection state when projecting from a projector device,
Projection surface luminance measurement processing for measuring the luminance value of each color component for each pixel of the captured image obtained by imaging the projected image;
A light distribution characteristic calculation process for calculating a light distribution map indicating a change rate of the luminance with respect to the luminance of the reference point in the video, based on the luminance value of each color component for each pixel measured in the projection plane luminance measurement process;
A response function calculation process for normalizing the luminance value of each color component for each pixel measured in the projection plane luminance measurement process using the light distribution map, and calculating a response function;
The luminance value of each color component for each pixel of the input video signal is corrected using the response function and the light distribution map to obtain a corrected video signal, and the corrected video signal is used as a projection video signal. A video signal correction method for executing the correction processing.
投影された映像を撮像して得られた撮像映像の画素ごとの各色成分の輝度値を計測する投影面輝度計測処理手順と、
前記投影面輝度計測処理手順で計測された画素ごとの各色成分の輝度値に基づいて、映像中の基準点の輝度に対する輝度の変化率を示す配光マップを算出する配光特性算出処理手順と、
前記投影面輝度計測処理手順で計測された画素ごとの各色成分の輝度値を、前記配光マップを用いて正規化して、応答関数を算出する応答関数算出処理手順と、
前記入力した映像信号の画素ごとの各色成分の輝度値を、前記応答関数及び前記配光マップを利用して補正し、補正された映像信号を得、補正された映像信号を投影用の映像信号とする補正処理手順とを実行するプログラム。 A program for performing processing to correct according to a projection state when projecting an image based on an input or generated video signal from a projector device,
Projection surface luminance measurement processing procedure for measuring the luminance value of each color component for each pixel of the captured image obtained by imaging the projected image;
A light distribution characteristic calculation processing procedure for calculating a light distribution map indicating a change rate of the luminance with respect to the luminance of the reference point in the video based on the luminance value of each color component for each pixel measured in the projection surface luminance measurement processing procedure; ,
A response function calculation processing procedure for calculating a response function by normalizing the luminance value of each color component for each pixel measured in the projection surface luminance measurement processing procedure using the light distribution map;
The luminance value of each color component for each pixel of the input video signal is corrected using the response function and the light distribution map to obtain a corrected video signal, and the corrected video signal is used as a projection video signal. And a correction processing procedure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010163336A JP5590668B2 (en) | 2010-07-20 | 2010-07-20 | Projector apparatus, video signal correction apparatus, video signal correction method, and program |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010163336A JP5590668B2 (en) | 2010-07-20 | 2010-07-20 | Projector apparatus, video signal correction apparatus, video signal correction method, and program |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2012028877A JP2012028877A (en) | 2012-02-09 |
| JP2012028877A5 true JP2012028877A5 (en) | 2013-08-22 |
| JP5590668B2 JP5590668B2 (en) | 2014-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| JP2010163336A Expired - Fee Related JP5590668B2 (en) | 2010-07-20 | 2010-07-20 | Projector apparatus, video signal correction apparatus, video signal correction method, and program |
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| JP (1) | JP5590668B2 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015022043A (en) * | 2013-07-17 | 2015-02-02 | 株式会社リコー | Image processing apparatus and image processing system |
| JP6228469B2 (en) | 2014-01-20 | 2017-11-08 | 株式会社東芝 | Image processing apparatus, image processing method, and image projection apparatus |
| JP6385729B2 (en) | 2014-06-13 | 2018-09-05 | 株式会社東芝 | Image processing apparatus and image projection apparatus |
| JP6317635B2 (en) | 2014-06-30 | 2018-04-25 | 株式会社東芝 | Image processing apparatus, image processing method, and image processing program |
| JP6543067B2 (en) | 2015-03-31 | 2019-07-10 | 株式会社メガチップス | Projection system, projector device, imaging device, and program |
| JP6872239B2 (en) * | 2017-07-28 | 2021-05-19 | 国立大学法人電気通信大学 | Image processing equipment, image processing method and image processing program |
| WO2019058521A1 (en) * | 2017-09-22 | 2019-03-28 | ｐｏｐＩｎ株式会社 | Projector and projector system |
| JP7078343B2 (en) * | 2021-02-26 | 2022-05-31 | 三菱ロジスネクスト株式会社 | Automated guided vehicles and automated guided vehicles |
| CN113923428B (en) * | 2021-11-23 | 2024-01-30 | 中国航空工业集团公司洛阳电光设备研究所 | Terminal and method for rapidly calibrating projection precision of head-up projection device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH06105185A (en) * | 1992-09-18 | 1994-04-15 | Hitachi Denshi Ltd | Brightness correction method |
| JP2005269130A (en) * | 2004-03-18 | 2005-09-29 | Konica Minolta Photo Imaging Inc | Imaging device with camera shake correcting function |
| JP3912404B2 (en) * | 2004-10-25 | 2007-05-09 | コニカミノルタフォトイメージング株式会社 | Imaging device |
| JP2006287633A (en) * | 2005-03-31 | 2006-10-19 | Seiko Epson Corp | Correction value generating method of image display device, program for making computer execute the method, computer-readable recording medium with the program recorded thereon and image display device |
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