Compressive Sensing Imaging Based on Modulation of Atmospheric Scattering Medium
Round 1
Reviewer 1 Report
review of MDPI Applied Sciences manuscript applsci-838836
In this manuscript, the authors present an idea for using atmospheric scattering for modulation in compressive imaging. They demonstrate the idea with a theoretical simulation and with an experimental setup, and they provide an honest discussion of the limitations of the method. I find the idea and the results they show interesting. The manuscript is generally well-written and is appropriate for publication in Applied Sciences. I have just a few, relatively minor comments, as I list below.
(1) line 54: I suggest changing “demonstrated” to “demonstrate”.
(2) line 87: “becoming favorable conditions instead” – I suggest spelling it out, “becoming favorable conditions in transmission imaging”.
(3) Equation 5: Does this equation determine the new value of θ?
(4) Equation 7: How is the optical distance, l, determined?
(5) line 136: “vary randomly over time” – What is the time scale of the variation?
(6) lines 137-139: “The emitting directions were random...” – What is the meaning of random emitting directions if two specific propagation paths are chosen?”
(7) Figures 2a and b: The plots need to be larger in order to see the numbers.
(8) lines 156-157: “...coefficients...is” – there is a plural-singular mismatch between the subject and the verb in this sentence.
(9) line 162: “Gram matrix G” – It would be helpful to refer the reader to a reference for the meaning of Gram matrix.
(10) line 177: I suggest changing “were” to “are”.
(11) line 209: “loaded onto the DMD” – Doesn’t the atmosphere between the laser and the DMD provide modulation? Why does the modulation need to be simulated “artificially” and loaded?
(12) line 244: I suggest changing “satisfied” to “satisfies”.
Comments for author File: 
Comments.docx
Author Response
Dear reviewer,
I am very grateful to your comments for the manuscript applsci-838836 entitled “Compressive Sensing Imaging Based on Modulation of Atmospheric Scattering Medium”. According to your advices, the manuscript is modified after discussion with all writers. We have made point-by-point responses to reviewers’ comments, please see the attachment.
If you have any question about this paper, please don’t hesitate to let me know.
Sincerely,
Xuelin Lei
Author Response File: Author Response.docx
Reviewer 2 Report
I have read this paper with a lot of interest. The author’s approach is innovative and the results are promising. I have no objection to accept the paper subject to minor corrections indicated below.
[theory] the theoretical framework is provided in a condensed way which is not preferred for wide readership of the journal of Applied Sciences. I would suggest the authors should elucidate the theoretical background to better understand transitioning from the theoretical model to the experimental results.
[line 107] why the Rayleigh optical depth is preferred? Is the collision probability interpreted as an inverse of the spectral atmospheric turbidity?
[Eq. 2] I think the normalization coefficient of 1/(4*PI) is missing in Eq. 2.
[general] Although targeted to another application it has been stated in (JQSRT 239, 106670, 2019 above Eq. 1 and in reference 21 therein) that Monte Carlo approach can suffer when the scattering phase function shows a high degree of asymmetry (such as in a turbid atmosphere). In addition, the Monte Carlo computations are not fully reproducible. This is why I would expect the authors should append a short paragraph to discuss the limitations of the method they have developed.
Author Response
Dear reviewer,
I am very grateful to your comments for the manuscript applsci-838836 entitled “Compressive Sensing Imaging Based on Modulation of Atmospheric Scattering Medium”. According to your advices, the manuscript is modified after discussion with all writers. We have made point-by-point responses to reviewers’ comments, please see the attachment.
If you have any question about this paper, please don’t hesitate to let me know.
Sincerely,
Xuelin Lei
Author Response File: Author Response.docx
