CN103577689A - Smoothing algorithm for optical characteristic curves of screen brightness values - Google Patents
Smoothing algorithm for optical characteristic curves of screen brightness values Download PDFInfo
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- CN103577689A CN103577689A CN201310510612.0A CN201310510612A CN103577689A CN 103577689 A CN103577689 A CN 103577689A CN 201310510612 A CN201310510612 A CN 201310510612A CN 103577689 A CN103577689 A CN 103577689A
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- value
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- tensive
- spline function
- smoothing algorithm
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Abstract
The invention discloses a smoothing algorithm for optical characteristic curves of screen brightness values. The smoothing algorithm adopts a tension spline function for point-by-point calculation and selects appropriate tension coefficients to fit to obtain smoothed curves. The smoothing algorithm can perform fitting to obtain the smoothed curves which pass through known brightness value data points, and the adjacent line segments of the smoothed curves do not intersect.
Description
Technical field
The present invention relates to line smoothing algorithm field, be specially the smooth algorithm of a kind of screen brightness value optical indicatrix.
Background technology
When screen is carried out to optical measurement, after having gathered the brightness data of screen, need to draw family curve, as the data that direct use collects, draw out curve, at this moment curve is rough.So, correctly select the line smoothing algorithm tool that meets application requirements to be of great significance.At present for the algorithm of line smoothing, mainly contain linear iterative method, Bezier function method, 5 theory of adjustments, cubic spline function method etc., these algorithms exist the smooth curve of matching by known node, and the crossing problem of adjacent curve.
Summary of the invention
The object of this invention is to provide the smooth algorithm of a kind of screen brightness value optical indicatrix, the problem existing to solve prior art.
In order to achieve the above object, the technical solution adopted in the present invention is:
The smooth algorithm of value optical indicatrix, is characterized in that: adopt Tensive Spline Function to carry out node-by-node algorithm to the curve consisting of known brightness value data point, by selecting suitable coefficient of tension matching to obtain smooth curve, process is as follows:
(1) calculate the basic Tensive Spline Function of arbitrary curve, and the attribute of giving arbitrary raw data points is 0;
(2) judge whether adjacent segments intersects, if intersected, record the head and the tail point numbering that intersects line segment, the property value of these points is 1;
(3) Tensive Spline Function value is given in pointwise, and corresponding rule is following 0, and the coefficient of tension value that property value is 1 is 7.0.
The present invention is simple, adopts Tensive Spline Function matching smooth curve, by adopting the method for node-by-node algorithm, and selects the suitable coefficient of tension, can matching obtain smooth and by known brightness value data point, and the disjoint smooth curve of adjacent segments.
Embodiment
The smooth algorithm of a kind of screen brightness value optical indicatrix, it is characterized in that: adopt Tensive Spline Function to carry out node-by-node algorithm to the curve being formed by known brightness value data point, smooth and by known brightness value data point by selecting suitable coefficient of tension matching to obtain, and the disjoint smooth curve of adjacent segments, process is as follows:
(1) calculate the basic Tensive Spline Function of arbitrary curve, and the attribute of giving arbitrary raw data points is 0;
(2) judge whether adjacent segments intersects, if intersected, record the head and the tail point numbering that intersects line segment, the property value of these points is 1;
(3) Tensive Spline Function value is given in pointwise, and corresponding rule is as follows: the coefficient of tension value of the data point that property value is 0 is 0, and the coefficient of tension value that property value is 1 is 7.0.
Claims (1)
1. the smooth algorithm of screen brightness value optical indicatrix, is characterized in that: adopt Tensive Spline Function to carry out node-by-node algorithm to the curve consisting of known brightness value data point, by selecting suitable coefficient of tension matching to obtain smooth curve, process is as follows:
(1) calculate the basic Tensive Spline Function of arbitrary curve, and the attribute of giving arbitrary raw data points is 0;
(2) judge whether adjacent segments intersects, if intersected, record the head and the tail point numbering that intersects line segment, the property value of these points is 1;
(3) Tensive Spline Function value is given in pointwise, and corresponding rule is as follows: the coefficient of tension value of the data point that property value is 0 is 0, and the coefficient of tension value that property value is 1 is 7.0.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310510612.0A CN103577689A (en) | 2013-10-26 | 2013-10-26 | Smoothing algorithm for optical characteristic curves of screen brightness values |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310510612.0A CN103577689A (en) | 2013-10-26 | 2013-10-26 | Smoothing algorithm for optical characteristic curves of screen brightness values |
Publications (1)
| Publication Number | Publication Date |
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| CN103577689A true CN103577689A (en) | 2014-02-12 |
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Family Applications (1)
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| CN201310510612.0A Pending CN103577689A (en) | 2013-10-26 | 2013-10-26 | Smoothing algorithm for optical characteristic curves of screen brightness values |
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Citations (5)
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|---|---|---|---|---|
| US20060007511A1 (en) * | 2004-07-09 | 2006-01-12 | Seiko Epson Corporation | Gradation attributes control according to characteristics of image |
| CN101226630A (en) * | 2007-09-27 | 2008-07-23 | 四川虹微技术有限公司 | Interpolation method based on cubic spline function |
| US20080191985A1 (en) * | 2006-12-06 | 2008-08-14 | Yukari Katayama | Image correction method and image display device |
| CN101807291A (en) * | 2010-04-27 | 2010-08-18 | 浙江大学 | Biquadratic B-spline local interpolation-based image scaling method |
| CN102231099A (en) * | 2011-07-06 | 2011-11-02 | 清华大学 | Method for correcting per-pixel response brightness in multi-projector auto-stereoscopic display |
-
2013
- 2013-10-26 CN CN201310510612.0A patent/CN103577689A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060007511A1 (en) * | 2004-07-09 | 2006-01-12 | Seiko Epson Corporation | Gradation attributes control according to characteristics of image |
| US20080191985A1 (en) * | 2006-12-06 | 2008-08-14 | Yukari Katayama | Image correction method and image display device |
| CN101226630A (en) * | 2007-09-27 | 2008-07-23 | 四川虹微技术有限公司 | Interpolation method based on cubic spline function |
| CN101807291A (en) * | 2010-04-27 | 2010-08-18 | 浙江大学 | Biquadratic B-spline local interpolation-based image scaling method |
| CN102231099A (en) * | 2011-07-06 | 2011-11-02 | 清华大学 | Method for correcting per-pixel response brightness in multi-projector auto-stereoscopic display |
Non-Patent Citations (4)
| Title |
|---|
| 席平等: "反向工程中的曲面光顺算法", 《北京航空航天大学学报》, vol. 28, no. 2, 30 April 2002 (2002-04-30), pages 125 - 128 * |
| 惠文华等: "3D-GIS中空间曲线绘制方法研究", 《地球科学与环境学报》, vol. 27, no. 2, 15 June 2005 (2005-06-15), pages 63 - 66 * |
| 迟文学等: "张力样条函数在雨量等值线光滑中的应用研究", 《水文》, vol. 27, no. 1, 25 February 2007 (2007-02-25) * |
| 陈冬雪: "图像处理技术在大屏幕特种立体电影制作中的应用", 《中国优秀硕士学位论文全文数据库 哲学与人文科学辑》, no. 2, 15 February 2010 (2010-02-15) * |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Gao Songbai Inventor after: Gao Zhan Inventor after: Shi Chaoyang Inventor after: Xu Shubo Inventor after: Chen Dalie Inventor after: Chen Bihua Inventor before: Gao Songbai Inventor before: Xu Shubo Inventor before: Chen Bihua Inventor before: Chen Liang Inventor before: Chen Dalie |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: GAO SONGBAI XU SHUBO CHEN BIHUA CHEN LIANG CHEN DALIE TO: GAO SONGBAI GAO ZHAN SHI ZHAOYANG XU SHUBO CHEN DALIE CHEN BIHUA |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140212 |