Rapid super resolution for infrared imagery

Navot Oz, Nir Sochen, Oshry Markovich, Ziv Halamish, Lena Shpialter-Karol, Iftach Klapp*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


Infrared (IR) imagery is used in agriculture for irrigation monitoring and early detection of disease in plants. The common IR cameras in this field typically have low resolution. This work offers a method to obtain the super-resolution of IR images from low-power devices to enhance plant traits. The method is based on deep learning (DL). Most calculations are done in the low-resolution domain. The results of each layer are aggregated together to allow a better flow of information through the network. This work shows that good results can be achieved using depthwise separable convolution with roughly 300K multiply-accumulate computations (MACs), while state-of-the-art convolutional neural network-based super-resolution algorithms are performed with around 1500K MACs. MTF analysis of the proposed method shows a real ×4 improvement in the spatial resolution of the system, out-preforming the diffraction limit. The method is demonstrated on real agricultural images.

Original languageEnglish
Pages (from-to)27196-27209
Number of pages14
JournalOptics Express
Issue number18
StatePublished - 31 Aug 2020


FundersFunder number
Israeli Innovation authority Phenomics consortium
Israeli Ministry of Agriculture’s Kandel Program20-12-0030
Ministry of Agriculture and Rural Development


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