Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

The Sense of Self: Reflected Self-Appraisal and Social Comparison02:57

The Sense of Self: Reflected Self-Appraisal and Social Comparison

56.1K
According to Charles Cooley, we base our image on what we think other people see (Cooley 1902). We imagine how we must appear to others, then react to this speculation. We don certain clothes, prepare our hair in a particular manner, wear makeup, use cologne, and the like—all with the notion that our presentation of ourselves is going to affect how others perceive us. We expect a certain reaction, and, if lucky, we get the one we desire and feel good about it. But more than that, Cooley...
56.1K
Trial and Error and Algorithm01:12

Trial and Error and Algorithm

425
A problem-solving strategy is a plan of action used to find a solution. Different strategies have distinct action plans. Trial and error involves trying different solutions until one works. For instance, to fix a broken printer, you might check ink levels, ensure the paper tray isn't jammed, and verify the printer's connection to your laptop. This method can be time-consuming but is commonly used. Thomas Edison, for example, used trial and error to find a suitable filament for the light...
425
Introduction to Special Senses01:26

Introduction to Special Senses

7.6K
Sensory receptors play an integral part in comprehending our external and internal environments. They receive diverse stimuli, converting them into the nervous system's electrochemical signals. This conversion occurs as the stimulus alters the sensory neuron's cell membrane potential, instigating the generation of an action potential. This action potential is subsequently transmitted to the central nervous system (CNS), which integrates with other sensory data or higher cognitive...
7.6K
Behavior of Concrete Under Compressive Load01:23

Behavior of Concrete Under Compressive Load

643
Concrete exhibits specific behaviors under different compressive loads. Understanding this is crucial for understanding its structural integrity. When concrete undergoes uniaxial compression, it tends to develop cracks that run parallel to the direction of the force. These parallel cracks stem from localized tensile stresses that occur perpendicular to the compression direction. Additionally, angled cracks may appear due to the formation of shear planes.
As the concrete specimen fractures under...
643
Tactile and Chemical Senses01:27

Tactile and Chemical Senses

810
Tactile senses encompass touch, temperature, and pain, each mediated by specific receptors. Touch receptors detect mechanical energy or pressure against the skin. Sensory fibers from these receptors enter the spinal cord and relay information to the brain stem. Here, most fibers cross over to the opposite side of the brain. The touch information then moves to the thalamus, which projects a map of the body's surface onto the somatosensory areas of the parietal lobes in the cerebral cortex.
810
Radiological Investigation I: X-ray and CT01:30

Radiological Investigation I: X-ray and CT

1.2K
Radiological investigations, including X-rays and computed tomography (CT) scans, are critical for diagnosing and evaluating various medical conditions. These imaging techniques provide valuable insights into the body's internal structures, aiding in the detection of abnormalities, assessment of disease progression, and development of treatment strategies. This article delves into two primary radiological investigations, chest X-rays and CT scans, outlining their purpose, procedures, and...
1.2K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Scanning Bessel beam microscopy with a protected and corrective objective for solvent-cleared large samples.

iScience·2026
Same author

Polychromatic sinogram based material decomposition and reconstruction methods: integrate standard reference database with an in-house cone-beam micro-computed tomography system.

Biomedical physics & engineering express·2026
Same author

Epicardial Adipose Tissue CT Radiomics Improves Acute Coronary Syndrome Prediction Beyond Coronary Artery Calcium Score.

Diagnostics (Basel, Switzerland)·2026
Same author

Deep Learning for Content-Based Medical Image Retrieval in Picture Archiving and Communication Systems for Brain Tumor Detection: Algorithm Development and Validation.

JMIR medical informatics·2026
Same author

Refining deep learning segmentation in gallium-68-prostate-specific membrane antigen-11 positron emission tomography: evaluation of small lesion filtering and intersection-over-union thresholds.

Nuclear medicine communications·2026
Same author

Intraoperative Suction-Assisted Kyphoplasty for Immediate Removal of Posterior PMMA Extravasation in Decompressed Vertebral Compression Fractures.

Journal of clinical medicine·2026
Same journal

Effective contrast-enhanced preprocessing for intracranial artery segmentation in digital subtraction angiography.

Physics in medicine and biology·2026
Same journal

Improving Plan Quality in Adaptive Proton Therapy Using an Interactive Dose Modification Tool.

Physics in medicine and biology·2026
Same journal

Technical Note: Real-Time MLC Control and Latency Measurement Optimization with External Verification.

Physics in medicine and biology·2026
Same journal

Fetus-Specific Hematopoietic Stem Cell Dosimetry Framework for Leukemia-Relevant Target Cells During Prenatal Development.

Physics in medicine and biology·2026
Same journal

Deep learning-based dose prediction to enhance planning efficiency in cervical brachytherapy with hybrid applicators.

Physics in medicine and biology·2026
Same journal

Corrigendum: Referenceless MR thermometry-a comparison of five methods (2017<i>Phys. Med. Biol</i>.<b>62</b>1-16).

Physics in medicine and biology·2026
See all related articles

Related Experiment Video

Updated: Feb 8, 2026

Modified Single-Loop Reconstruction for Pancreaticoduodenectomy
13:01

Modified Single-Loop Reconstruction for Pancreaticoduodenectomy

Published on: September 28, 2019

8.1K

Compressed sensing based CT reconstruction algorithm combined with modified Canny edge detection.

Chia-Jui Hsieh1,2, Ta-Ko Huang3, Tung-Han Hsieh4

  • 1Department of Biomedical Engineering, National Yang-Ming University, 155 Linong Street, Sec. 2, Beitou, Taipei 11221, Taiwan, People's Republic of China.

Physics in Medicine and Biology
|June 26, 2018
PubMed
Summary
This summary is machine-generated.

This study introduces an improved Canny edge detection operator for compressed sensing (CS) CT reconstruction. The new method enhances image quality by sharpening edges and improving contrast in low-dose CT scans.

More Related Videos

Automated Midline Shift and Intracranial Pressure Estimation based on Brain CT Images
14:08

Automated Midline Shift and Intracranial Pressure Estimation based on Brain CT Images

Published on: April 13, 2013

43.6K
Machine Learning Algorithms for Early Detection of Bone Metastases in an Experimental Rat Model
07:15

Machine Learning Algorithms for Early Detection of Bone Metastases in an Experimental Rat Model

Published on: August 16, 2020

7.5K

Related Experiment Videos

Last Updated: Feb 8, 2026

Modified Single-Loop Reconstruction for Pancreaticoduodenectomy
13:01

Modified Single-Loop Reconstruction for Pancreaticoduodenectomy

Published on: September 28, 2019

8.1K
Automated Midline Shift and Intracranial Pressure Estimation based on Brain CT Images
14:08

Automated Midline Shift and Intracranial Pressure Estimation based on Brain CT Images

Published on: April 13, 2013

43.6K
Machine Learning Algorithms for Early Detection of Bone Metastases in an Experimental Rat Model
07:15

Machine Learning Algorithms for Early Detection of Bone Metastases in an Experimental Rat Model

Published on: August 16, 2020

7.5K

Area of Science:

  • Medical Imaging
  • Image Reconstruction
  • Signal Processing

Background:

  • Compressed sensing (CS) CT reconstruction often yields images with blurred edges, compromising diagnostic quality.
  • Accurate edge detection is crucial for preserving anatomical details in low-dose CT imaging.
  • Traditional edge detection methods may not be optimal for the characteristics of CS-based reconstruction.

Purpose of the Study:

  • To develop a modified Canny operator to improve edge detection in compressed sensing CT reconstruction.
  • To enhance image quality by preserving and improving contrast in low-dose CT images.
  • To integrate the modified operator with CS for superior image reconstruction.

Main Methods:

  • A modified Canny edge detection operator was developed, featuring double-response edge detection and directional edge tracking.
  • The modified operator was integrated with the compressed sensing algorithm, creating an edge-enhanced CS (EECS) method.
  • Reconstruction performance was evaluated using 2D Shepp-Logan and 3D dental phantoms.

Main Results:

  • The EECS method demonstrated superior performance compared to conventional CS and CS combined with other edge detectors (Laplacian, Prewitt, Sobel).
  • Quantitative metrics including root-mean-square error, peak signal-to-noise ratio, and universal quality index confirmed the improved reconstruction quality.
  • Qualitative assessments also indicated enhanced image clarity and detail preservation with EECS.

Conclusions:

  • The proposed modified Canny operator effectively detects object edges in low-dose CT reconstruction.
  • The edge-enhanced CS (EECS) algorithm significantly improves image quality over existing methods.
  • This approach offers a promising solution for high-quality low-dose CT image reconstruction.