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prof. dr hab. inż. Krzysztof Piotr Okarma
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total: 107
Catalog Publications
Year 2024
Year 2023
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A Fast and Accurate Prediction of Distortions in DCT-Based Lossy Image Compression
PublicationSince the number of acquired images and their size have the tendency to increase, their lossy compression is widely applied for their storage, transfer, and dissemination. Simultaneously with providing a relatively large compression ratio, lossy compression produces distortions that are inevitably introduced and have to be controlled. The properties of these distortions depend on several factors such as image properties, the...
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A Hybrid Method for Objective Quality Assessment of Binary Images
PublicationIn the paper, a novel hybrid method for an automatic quality assessment of binary images is proposed that may be useful, e.g., for computationally limited embedded systems or Optical Character Recognition applications. Since the quality of binary images used as the input for further image analysis strongly influences the obtained results, a reliable evaluation of their quality is a crucial element for the validation of such...
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A method supporting fault-tolerant optical text recognition from video sequences recorded with handheld cameras
PublicationIn the paper a method supporting the optical character recognition from video sequences recorded with cameras without good stabilization is proposed. Due to the presence of various distortions, such as motion blur, shadows, lossy compression artifacts, auto-focusing errors, etc., the quality of individual video frames, e.g., recorded by a smartphone camera, differs noticeably, influencing the results of text recognition, causing...
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Adaptive Binarization of Metal Nameplate Images Using the Pixel Voting Approach
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Analysis of Image Preprocessing and Binarization Methods for OCR-Based Detection and Classification of Electronic Integrated Circuit Labeling
PublicationAutomatic recognition and classification of electronic integrated circuits based on optical character recognition combined with the analysis of the shape of their housings are essential to machine vision methods supporting the production of electronic parts, especially small-volume ones in the through-hole technology, characteristic of printed circuit boards. Since such methods utilize binary images, applying appropriate image...
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Efficiency Increasing of No-reference Image Quality Assessment in UAV Applications
PublicationUnmanned aerial vehicle (UAV) imaging is a dynamically developing field, where the effectiveness of imaging applications highly depends on quality of the acquired images. No-reference image quality assessment is widely used for quality control and image processing management. However, there is a lack of accuracy and adequacy of existing quality metrics for human visual perception. In this paper, we demonstrate that this...
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ЕФЕКТИВНІ МЕТОДИ ІНТЕЛЕКТУАЛЬНОЇ ОБРОБКИ ЗОБРАЖЕНЬ ТА ВІДЕО НА ОСНОВІ МЕТРИК ВІЗУАЛЬНОЇ ЯКОСТІ ДЛЯ ПЕРСПЕКТИВНИХ ЗАСТОСУВАНЬ
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МЕТОДИ ІНТЕЛЕКТУАЛЬНОЇ ОБРОБКИ ЗОБРАЖЕНЬ ТА ВІДЕО НА ОСНОВІ МЕТРИК ВІЗУАЛЬНОЇ ЯКОСТІ ДЛЯ ПЕРСПЕКТИВНИХ ЗАСТОСУВАНЬ
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Year 2022
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A Visual Feedback for Water-Flow Monitoring in Recirculating Aquaculture Systems
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Application of Image Entropy Analysis for the Quality Assessment of Stitched Images
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Combined No-Reference Image Quality Metrics for Visual Quality Assessment Optimized for Remote Sensing Images
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Erroneous Vehicle Velocity Estimation Correction Using Anisotropic Magnetoresistive (AMR) Sensors
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Improved Combined Metric for Automatic Quality Assessment of Stitched Images
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Intelligent Lossy Compression Method of Providing a Desired Visual Quality for Images of Different Complexity
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On properties of visual quality metrics in remote sensing applications
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Preprocessing of Document Images Based on the GGD and GMM for Binarization of Degraded Ancient Papyri Images
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Quality Control for the BPG Lossy Compression of Three-Channel Remote Sensing Images
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Year 2021
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Combined Full-Reference Image Quality Metrics for Objective Assessment of Multiply Distorted Images
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Entropy-Based Combined Metric for Automatic Objective Quality Assessment of Stitched Panoramic Images
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Extended Damage Detection and Identification in Aircraft Structure Based on Multifrequency Eddy Current Method and Mutual Image Similarity Assessment
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Monitoring the Uniformity of Fish Feeding Based on Image Feature Analysis
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Providing a Desired Quality of BPG Compressed Images for FSIM Metric
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Year 2020
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A Simplified Classification of Electronic Integrated Circuits Packages Based on Shape Descriptors
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Application of CNN-Based Method for Automatic Detection and Classification of the IC Packages
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Application of Multi-layered Thresholding Based on Stack of Regions for Unevenly Illuminated Industrial Images
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Applications of Computer Vision in Automation and Robotics
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Combined Metrics for Quality Assessment of 3D Printed Surfaces for Aesthetic Purposes: Towards Higher Accordance with Subjective Evaluations
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Computer Vision Methods for Non-destructive Quality Assessment in Additive Manufacturing
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Full-Reference Quality Metric Based on Neural Network to Assess the Visual Quality of Remote Sensing Images
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Improved quality assessment of colour surfaces for additive manufacturing based on image entropy
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Improved Robust Linearized Full-Reference Combined Metric for Remote Sensing Imaging
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Improved Two-Step Binarization of Degraded Document Images Based on Gaussian Mixture Model
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Optimization of Degraded Document Image Binarization Method Based on Background Estimation
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Quality Assessment of 3D Printed Surfaces Using Combined Metrics Based on Mutual Structural Similarity Approach Correlated with Subjective Aesthetic Evaluation
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Robust Combined Binarization Method of Non-Uniformly Illuminated Document Images for Alphanumerical Character Recognition
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КОМБІНОВАНА МЕТРИКА ВІЗУАЛЬНОЇ ЯКОСТІ ЗОБРАЖЕНЬ ДИСТАНЦІЙНОГО ЗОНДУВАННЯ НА ОСНОВІ НЕЙРОННОЇ МЕРЕЖІ
Publication
Year 2019
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Adaptation of Full-Reference Image Quality Assessment Methods for Automatic Visual Evaluation of the Surface Quality of 3D Prints
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Adaptive Image Binarization Based on Multi-layered Stack of Regions
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Automatic Colour Independent Quality Evaluation of 3D Printed Flat Surfaces Based on CLAHE and Hough Transform
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Binarization of Degraded Document Images with Generalized Gaussian Distribution
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Classification of Textures for Autonomous Cleaning Robots Based on the GLCM and Statistical Local Texture Features
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Current Trends and Advances in Image Quality Assessment
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Fast Adaptive Binarization with Background Estimation for Non-uniformly Lightened Document Images
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Fast Adaptive Image Binarization Using the Region Based Approach
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Improvement of Image Binarization Methods Using Image Preprocessing with Local Entropy Filtering for Alphanumerical Character Recognition Purposes
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Objective 3D Printed Surface Quality Assessment Based on Entropy of Depth Maps
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Region Based Approach for Binarization of Degraded Document Images
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Sensors in Intelligent Transportation Systems
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Year 2018
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Binary Line Oriented Histogram
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