基于红外双波段的盲元补偿算法

Blind Pixel Compensation Algorithm Based on Dual-Band Infrared Images

摘要: 红外焦平面阵列由于受到制造工艺等的影响，常常会出现盲元，过往通常使用的单波段盲元补偿算法对大盲元簇及位于边缘位置的盲元补偿效果不尽如人意，随着双波段热像的逐渐兴起，本文提出了一种基于双波段信息的盲元补偿算法，该算法结合了两个波段的信息，通过对盲元位置的分类，根据两个波段盲元邻域信息的相似性，使用不同的策略对图像中的盲元进行补偿，能够较为有效地对图像中的大盲元簇及位于边缘的盲元进行补偿。

Abstract: Blind pixels often appear in infrared focal plane arrays owing to the influence of the manufacturing technology. The previously used single-band blind element compensation algorithm is not satisfactory for large blind clusters and blind pixels at edge positions. With the rise in double-band thermal images, a blind element compensation algorithm based on double-band information is proposed in this study. This algorithm combines the information from the two bands. Different strategies are used to compensate for the blind pixels in the image, according to the similarity of the neighborhood information of the two bands. This can effectively compensate for the large blind clusters in the image and the blind pixels at the edge using different strategies.