JPWO2022054148A5 - - Google Patents
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- JPWO2022054148A5 JPWO2022054148A5 JP2022548280A JP2022548280A JPWO2022054148A5 JP WO2022054148 A5 JPWO2022054148 A5 JP WO2022054148A5 JP 2022548280 A JP2022548280 A JP 2022548280A JP 2022548280 A JP2022548280 A JP 2022548280A JP WO2022054148 A5 JPWO2022054148 A5 JP WO2022054148A5
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- 238000009529 body temperature measurement Methods 0.000 claims description 16
- 238000003672 processing method Methods 0.000 claims description 5
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- 238000013528 artificial neural network Methods 0.000 claims 3
- 230000014759 maintenance of location Effects 0.000 claims 1
Description
本開示の一態様に係る画像処理装置は、複数の発光素子部を有し、前記複数の発光素子部の各々が１つ以上の発光素子を含む、画像表示部に、画像を表示させる装置であって、画像データの階調を画素ごとに削減して、階調削減された画像データを生成するデータ削減部と、気温を測定する気温測定部から出力された気温測定値と前記階調削減された画像データとに基づいて、前記複数の発光素子部の各々の温度又は前記発光素子の各々の温度を推定し、推定された前記温度を示す温度推定値を出力する温度推定部と、前記複数の発光素子部の各々について、温度による輝度及び色度の少なくとも一方のムラが補償されるように、前記温度推定値に基づいて前記画像データを補正する色度・輝度ムラ補正部と、を有し、前記温度推定部は、前記階調削減された画像データと前記気温測定値と前記複数の発光素子部の各々の温度又は前記発光素子の各々の温度とを対応付けるモデル式を用いて前記温度推定値を算出することを特徴とする。 An image processing device according to an aspect of the present disclosure is a device that displays an image on an image display unit that includes a plurality of light emitting element units, each of which includes one or more light emitting elements. a data reduction unit that reduces the gradation of image data for each pixel to generate gradation-reduced image data; a temperature estimation unit for estimating the temperature of each of the plurality of light emitting element units or the temperature of each of the light emitting elements based on the obtained image data, and outputting a temperature estimation value indicating the estimated temperature; a chromaticity/luminance non-uniformity correction unit that corrects the image data based on the temperature estimation value so as to compensate for temperature-dependent non-uniformity in at least one of luminance and chromaticity for each of the plurality of light-emitting element units; wherein the temperature estimating unit has a model formula that associates the tone-reduced image data, the air temperature measurement value, and the temperature of each of the plurality of light emitting element units or the temperature of each of the light emitting elements. is used to calculate the estimated temperature value.
本開示の他の態様に係る画像処理方法は、複数の発光素子部を有し、前記複数の発光素子部の各々が１つ以上の発光素子を含む、画像表示部に、画像を表示させる画像処理方法であって、画像データの階調を画素ごとに削減して、階調削減された画像データを生成するステップと、気温を測定する気温測定部から出力された気温測定値と前記階調削減された画像データとに基づいて、前記複数の発光素子部の各々の温度又は前記発光素子の各々の温度を推定し、推定された前記温度を示す温度推定値を出力するステップと、前記複数の発光素子部の各々について、温度による輝度及び色度の少なくとも一方のムラが補償されるように、前記温度推定値に基づいて前記画像データを補正するステップと、を有し、前記温度推定値を出力するステップでは、前記階調削減された画像データと前記気温測定値と前記複数の発光素子部の各々の温度又は前記発光素子の各々の温度とを対応付けるモデル式を用いて前記温度推定値を算出することを特徴とする。 An image processing method according to another aspect of the present disclosure has a plurality of light emitting element units, and each of the plurality of light emitting element units includes one or more light emitting elements. A processing method comprising the steps of: reducing the gradation of image data for each pixel to generate gradation-reduced image data; and measuring the temperature output from an air temperature measurement unit for measuring the temperature and the gradation. estimating the temperature of each of the plurality of light emitting element units or the temperature of each of the light emitting elements based on the reduced image data, and outputting a temperature estimation value indicating the estimated temperature; correcting the image data based on the estimated temperature value so that unevenness in at least one of brightness and chromaticity due to temperature is compensated for each of the light emitting element units of in the step of outputting the image data having the gradation reduced, the temperature measurement value, and the temperature of each of the plurality of light emitting element units or the temperature of each of the light emitting elements using a model formula The temperature estimation value is calculated .
Claims (12)
画像データの階調を画素ごとに削減して、階調削減された画像データを生成するデータ削減部と、
気温を測定する気温測定部から出力された気温測定値と前記階調削減された画像データとに基づいて、前記複数の発光素子部の各々の温度又は前記発光素子の各々の温度を推定し、推定された前記温度を示す温度推定値を出力する温度推定部と、
前記複数の発光素子部の各々について、温度による輝度及び色度の少なくとも一方のムラが補償されるように、前記温度推定値に基づいて前記画像データを補正する色度・輝度ムラ補正部と、
を有し、
前記温度推定部は、前記階調削減された画像データと前記気温測定値と前記複数の発光素子部の各々の温度又は前記発光素子の各々の温度とを対応付けるモデル式を用いて前記温度推定値を算出する
ことを特徴とする画像処理装置。 An image processing device for displaying an image on an image display unit having a plurality of light emitting element units, each of the plurality of light emitting element units including one or more light emitting elements,
a data reduction unit that reduces the gradation of image data for each pixel to generate gradation-reduced image data;
estimating the temperature of each of the plurality of light-emitting element units or the temperature of each of the light-emitting elements based on the temperature measurement value output from an air temperature measurement unit that measures the temperature and the image data with reduced gradation; a temperature estimation unit that outputs a temperature estimation value indicating the estimated temperature;
a chromaticity/luminance non-uniformity correction unit that corrects the image data based on the temperature estimation value so as to compensate for temperature-dependent non-uniformity in at least one of luminance and chromaticity for each of the plurality of light-emitting element units;
has
The temperature estimator uses a model formula that associates the tone-reduced image data, the air temperature measurement value, and the temperature of each of the plurality of light emitting element units or the temperature of each of the light emitting elements. An image processing device that calculates the estimated temperature value.
ことを特徴とする請求項１に記載の画像処理装置。 2. The image processing apparatus according to claim 1, wherein:
ことを特徴とする請求項１又は２に記載の画像処理装置。 3. The image processing apparatus according to claim 1, wherein:
前記温度推定部は、前記階調削減された画像データと前記気温測定値と前記過去の温度推定値と前記発光素子部の各々の温度とを対応付ける学習済みニューラルネットワークのモデル式を用いて、前記発光素子部の各々の温度を算出する
ことを特徴とする請求項１又は２に記載の画像処理装置。 The temperature estimating unit estimates the temperature of each of the plurality of light emitting element units based on the air temperature measurement value, the gradation-reduced image data, and a past temperature estimation value,
The temperature estimating unit uses a model formula of a trained neural network that associates the tone-reduced image data, the air temperature measurement value, the past temperature estimation value, and the temperature of each of the light emitting element units with the 3. The image processing apparatus according to claim 1, wherein the temperature of each of the light emitting element units is calculated.
前記温度推定部は、前記気温測定値と前記階調削減された画像データと前記過去の１つ以上の時刻の温度推定値とに基づいて、前記複数の発光素子部の各々の温度を推定し、
前記温度推定部は、前記階調削減された画像データと前記気温測定値と前記過去の温度推定値と前記発光素子部の各々の温度とを対応付ける学習済みニューラルネットワークのモデル式を用いて、前記発光素子部の各々の温度を算出する
ことを特徴とする請求項１又は２に記載の画像処理装置。 further comprising an estimated temperature storage unit that stores the temperature estimated by the temperature estimation unit as a past temperature estimated value;
The temperature estimating unit estimates the temperature of each of the plurality of light emitting element units based on the air temperature measurement value, the gradation-reduced image data, and the temperature estimated value at one or more past times. ,
The temperature estimating unit uses a model formula of a trained neural network that associates the tone-reduced image data, the air temperature measurement value, the past temperature estimation value, and the temperature of each of the light emitting element units with the 3. The image processing apparatus according to claim 1, wherein the temperature of each of the light emitting element units is calculated.
ことを特徴とする請求項１から５のいずれか１項に記載の画像処理装置。 A data retention ratio, which is a ratio of a second value indicating the gradation of the image data output from the data reduction unit to a first value indicating the gradation of the image data input to the data reduction unit, is The image processing apparatus according to any one of claims 1 to 5 , wherein the lower the gradation of the image data input to the data reduction unit, the higher the gradation.
前記色度・輝度ムラ補正部によって補正された画像データに基づく画像を表示する画像表示部と
を有することを特徴とする画像表示装置。 an image processing device according to any one of claims 1 to 7 ;
and an image display unit for displaying an image based on the image data corrected by the chromaticity/luminance unevenness correcting unit.
画像データの階調を画素ごとに削減して、階調削減された画像データを生成するステップと、
気温を測定する気温測定部から出力された気温測定値と前記階調削減された画像データとに基づいて、前記複数の発光素子部の各々の温度又は前記発光素子の各々の温度を推定し、推定された前記温度を示す温度推定値を出力するステップと、
前記複数の発光素子部の各々について、温度による輝度及び色度の少なくとも一方のムラが補償されるように、前記温度推定値に基づいて前記画像データを補正するステップと、
を有し、
前記温度推定値を出力するステップでは、前記階調削減された画像データと前記気温測定値と前記複数の発光素子部の各々の温度又は前記発光素子の各々の温度とを対応付けるモデル式を用いて前記温度推定値を算出する
ことを特徴とする画像処理方法。 An image processing method for displaying an image on an image display unit having a plurality of light emitting element units, each of the plurality of light emitting element units including one or more light emitting elements,
reducing the tone of the image data pixel by pixel to generate tone-reduced image data;
estimating the temperature of each of the plurality of light-emitting element units or the temperature of each of the light-emitting elements based on the temperature measurement value output from an air temperature measurement unit that measures the temperature and the image data with reduced gradation; outputting a temperature estimate indicative of the estimated temperature;
correcting the image data based on the estimated temperature value so that unevenness in at least one of luminance and chromaticity due to temperature is compensated for each of the plurality of light emitting element units;
has
In the step of outputting the estimated temperature value, a model formula that associates the image data whose gradation has been reduced, the temperature measurement value, and the temperature of each of the plurality of light emitting element units or the temperature of each of the light emitting elements. An image processing method , wherein the estimated temperature value is calculated using
画像データの階調を画素ごとに削減して、階調削減された画像データを生成するステップと、
気温を測定する気温測定部から出力された気温測定値と前記階調削減された画像データとに基づいて、前記複数の発光素子部の各々の温度又は前記発光素子の各々の温度を推定し、推定された前記温度を示す温度推定値を出力するステップと、
前記複数の発光素子部の各々について、温度による輝度及び色度の少なくとも一方のムラが補償されるように、前記温度推定値に基づいて前記画像データを補正するステップと、
を前記コンピュータに実行させ、
前記温度推定値を出力するステップでは、前記階調削減された画像データと前記気温測定値と前記複数の発光素子部の各々の温度又は前記発光素子の各々の温度とを対応付けるモデル式を用いて前記温度推定値を算出する
ことを特徴とする画像処理プログラム。 An image processing program for causing a computer to execute an image processing method for displaying an image on an image display unit having a plurality of light emitting element units, each of the plurality of light emitting element units including one or more light emitting elements, ,
reducing the tone of the image data pixel by pixel to generate tone-reduced image data;
estimating the temperature of each of the plurality of light-emitting element units or the temperature of each of the light-emitting elements based on the temperature measurement value output from an air temperature measurement unit that measures the temperature and the image data with reduced gradation; outputting a temperature estimate indicative of the estimated temperature;
correcting the image data based on the estimated temperature value so that unevenness in at least one of luminance and chromaticity due to temperature is compensated for each of the plurality of light emitting element units;
causing said computer to execute
In the step of outputting the estimated temperature value, a model formula that associates the image data whose gradation has been reduced, the temperature measurement value, and the temperature of each of the plurality of light emitting element units or the temperature of each of the light emitting elements. An image processing program, characterized in that the estimated temperature value is calculated using
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|---|---|---|---|
| PCT/JP2020/034026 WO2022054148A1 (en) | 2020-09-09 | 2020-09-09 | Image processing device, image display device, image processing method, and image processing program |
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| JPWO2022054148A1 JPWO2022054148A1 (en) | 2022-03-17 |
| JPWO2022054148A5 true JPWO2022054148A5 (en) | 2022-11-10 |
| JP7275402B2 JP7275402B2 (en) | 2023-05-17 |
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| JP2012237972A (en) * | 2011-04-26 | 2012-12-06 | Canon Inc | Temperature estimation device, control method thereof and image display device |
| JP2014013335A (en) * | 2012-07-05 | 2014-01-23 | Canon Inc | Display device and driving method of display panel |
| KR102557420B1 (en) * | 2016-02-17 | 2023-07-20 | 삼성디스플레이 주식회사 | Luminance compensator in display device |
| JP6723964B2 (en) * | 2017-09-25 | 2020-07-15 | Eizo株式会社 | Atmosphere temperature estimation device, atmosphere temperature estimation method, program and system |
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