基于顯著性加權隨機優(yōu)化的快速響應碼美化方法

楊俊豐; 林亞平; 歐博; 蔣軍強; 李強

doi:10.11999/JEIT170521

基于顯著性加權隨機優(yōu)化的快速響應碼美化方法

doi: 10.11999/JEIT170521

基金項目:

國家自然科學基金項目(61472125)；教育部-中國移動科研基金(MCM20122061)

計量
- 文章訪問數(shù): 1356
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- 被引次數(shù): 0
出版歷程
- 收稿日期: 2017-05-31
- 修回日期: 2017-10-27
- 刊出日期: 2018-02-19

A Quick Response Code Beautification Method Based on Saliency Weighted Random Optimization

Funds:

The National Natural Science Foundation of China (61472125), The Ministry of Education-China Mobile Science Foundation (MCM20122061)

摘要

摘要: 隨著移動終端和移動互聯(lián)網(wǎng)的發(fā)展，快速響應(QR)碼被廣泛運用于移動信息交互。但是，標準的 QR 碼是由均勻分布的黑色與白色模塊組成，外觀類似噪聲信號，缺乏視覺美感，限制了QR碼的應用。針對此問題，該文提出一種提高QR碼視覺效果的美化方法。該方法將給定的彩色圖像進行顯著性檢測和半色調處理，得到相應的顯著性矩陣和半色調圖像，然后根據(jù)半色調圖像上的網(wǎng)點分布，對QR碼的模塊分布進行優(yōu)化。為了提高優(yōu)化效率，該文提出一種顯著性加權隨機優(yōu)化算法，將優(yōu)化后的QR碼和半色調圖像進行融合，得到與半色調圖像最相似的半色調QR碼。在圖像渲染階段，該文提出一種基于二分搜索的色彩調整算法，得到具有色彩信息和視覺美感的彩色QR碼。實驗分析表明，該方法生成的QR碼不僅保留了與標準QR碼一樣的抗遮擋、快速解碼等特性，還有效地提升了視覺效果，具有很好的視覺吸引力。
- 快速響應碼 /
- 視覺美感 /
- 顯著性 /
- 加權隨機抽樣 /
- 非系統(tǒng)編碼
Abstract: With the development of smart phones and mobile internet, Quick Response (QR) codes are widely applied to mobile information interaction. However, the appearance of the standard QR code is similar to the noise signal. It is lack of visual aesthetics, easy to damage the overall aesthetic of the publicity materials so that the promotional effect will be affected. To solve this problem, this paper proposes a beautification approach for embedding a color image in a QR code. At first, the method processes the given color image with saliency detection and halftoning techniques to acquire the corresponding saliency image and halftone image. Then, the modules distribution of QR code is optimized by according to the halftone image. In order to improve the optimization efficiency, a saliency weighted random sampling algorithm is proposed. Finally, a binary search based color adjustment algorithm is proposed in color rendering. Experimental results show that the color QR code generated by the proposed method can be correctly decoded. At the same time, it improves the visual appearance, increases the visual aesthetics, and possesses more visual appeal.
- Quick Response (QR) code /
- Visual aesthetic /
- Saliency /
- Weighted random sampling /
- Non-systematic encoding

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參考文獻(22)

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