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A Conditional GAN Architecture for Colorization of Thermal Infrared Images

2023· article· en· W4384158297 on OpenAlex
Ekaagra Dubey, Neetu Singh, Prateek Joshi, Rahul Prasad

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldComputer Science
TopicGenerative Adversarial Networks and Image Synthesis
Canadian institutionsArtificial Intelligence in Medicine (Canada)
Fundersnot available
KeywordsChrominanceArtificial intelligenceComputer scienceLuminanceComputer visionRGB color modelGrayscaleTranslation (biology)Image (mathematics)Pattern recognition (psychology)

Abstract

fetched live from OpenAlex

The applicability of visible spectrum cameras is limited to nighttime and extreme weather conditions. To overcome these limitations, infrared (IR) cameras were introduced, but their images lack luminance and representation quality, limiting the analytical ability and response time of humans. To be understandable by humans, image enhancement is not sufficient; conversion to visible RGB format is required, and this process is popularly known as colorization. However, the thermal infrared (TIR) images are low in both luminance and chrominance in comparison to grayscale images, which are only low in chrominance. Therefore, TIR colorization needs image-to-image translation; simple color transfer is not enough. In this paper, we investigated and modified one of the most commonly used conditional generative adversarial networks, known as pix2pixHD GAN for TIR-to-visible RGB translation. We are proposing a new composite loss function with noise augmentation in training. The improvement in the average values of NRMSE, PSNR, LPIPS, and NIQE is observed when compared with the state-of-the-art on the publicly available KAIST dataset. The results of the extensive experiments proved the effectiveness of the proposed method for TIR colorization, which is shown using both subjective (visual) and objective assessments for evaluation of image quality.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Simulation or modeling · Consensus signal: none
GenreCandidate signal: Methods · Consensus signal: none
Teacher disagreement score0.928
Threshold uncertainty score0.185

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.014
GPT teacher head0.239
Teacher spread0.225 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it