Imaging Modality

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Byungjo Jung - One of the best experts on this subject based on the ideXlab platform.

  • Single-channel stereoscopic video Imaging Modality based on transparent rotating deflector
    Optics Express, 2015
    Co-Authors: Edalat Radfar, Won Hyuk Jang, Leila Freidoony, Ji Hoon Park, Ki-chul Kwon, Byungjo Jung
    Abstract:

    In this study, we developed a single-channel stereoscopic video Imaging Modality based on a transparent rotating deflector (TRD). Sequential two-dimensional (2D) left and right images were obtained through the TRD synchronized with a camera, and the components of the Imaging Modality were controlled by a microcontroller unit. The Imaging Modality was characterized by evaluating the stereoscopic video image generation, rotation of the TRD, heat generation by the stepping motor, and image quality and its stability in terms of the structural similarity index. The degree of depth perception was estimated and subjective analysis was performed to evaluate the depth perception improvement. The results show that the single-channel stereoscopic video Imaging Modality may: 1) overcome some limitations of conventional stereoscopic video Imaging modalities; 2) be a potential economical compact stereoscopic Imaging Modality if the system components can be miniaturized; 3) be easily integrated into current 2D optical Imaging modalities to produce a stereoscopic image; and 4) be applied to various medical and industrial fields.

  • single-channel stereoscopic video Imaging Modality based on a transparent rotating deflector
    Proceedings of SPIE, 2015
    Co-Authors: Edalat Radfar, Ji Hoon Park, Myungjin Ha, Sungkon Yu, Seul Gi Jang, Byungjo Jung
    Abstract:

    This paper introduces a stereoscopic video Imaging Modality based on a transparent rotating deflector (TRD). Sequential two-dimensional (2D) left and right images were obtained by rotating the TRD on a stepping motor synchronized with a complementary metal-oxide semiconductor camera, and the components of the Imaging Modality were controlled through general purpose input/output ports using a microcontroller unit. In this research, live stereoscopic videos were visualized on a personal computer by both active shutter 3D and passive polarization 3D methods. The Imaging Modality was characterized by evaluating the stereoscopic video image generation, rotation characteristics of the TRD. The level of 3D conception was estimated in terms of simplified human stereovision. The results show that singlechannel stereoscopic video Imaging Modality has the potential to become an economical compact stereoscopic device as the system components are amenable to miniaturization; and could be applied in a wide variety of fields.

  • Multimodal facial color Imaging Modality for objective analysis of skin lesions
    Journal of Biomedical Optics, 2008
    Co-Authors: J. Stuart Nelson, Byungjo Jung
    Abstract:

    We introduce a multimodal facial color Imaging Modality that provides a conventional color image, parallel and cross-polarization color images, and a fluorescent color image. We characterize the Imaging Modality and describe the image analysis methods for objective evaluation of skin lesions. The parallel and cross-polarization color images are useful for the analysis of skin texture, pigmentation, and vascularity. The polarization image, which is derived from parallel and cross-polarization color images, provides morphological information of superficial skin lesions. The fluorescent color image is useful for the evaluation of skin chromophores excited by UV-A radiation. In order to demonstrate the validity of the new Imaging Modality in dermatology, sample images were obtained from subjects with various skin disorders and image analysis methods were applied for objective evaluation of those lesions. In conclusion, we are confident that the Imaging Modality and analysis methods should be useful tools to simultaneously evaluate various skin lesions in dermatology.

Tarek Hassouna - One of the best experts on this subject based on the ideXlab platform.

  • a comprehensive review of pediatric urachal anomalies and predictive analysis for adult urachal adenocarcinoma
    The Journal of Urology, 2015
    Co-Authors: Joseph M Gleason, Paul R Bowlin, Darius J Bagli, Armando J Lorenzo, Tarek Hassouna
    Abstract:

    Purpose: We examined the presentation, diagnosis and management of radiologically detected pediatric urachal anomalies and assessed the risk of malignant degeneration.Materials and Methods: Our radiology database (2000 to 2012) was queried for all children younger than 18 years who were diagnosed with a urachal anomaly radiographically, and the operative database was used to determine those who underwent excision. Data collected included demographics, presenting symptoms, Imaging Modality and indication for excision. These data were compared to the Ontario Cancer Registry to determine the risk of malignancy.Results: A total of 721 patients were radiographically diagnosed with a urachal anomaly (667 incidentally), yielding a prevalence of 1.03% of the general pediatric population. Diagnoses were urachal remnants (89% of cases), urachal cysts (9%) and patent urachus (1.5%). Ultrasonography was the most common Imaging Modality (92% of cases), followed by fluoroscopy/voiding cystourethrography (5%) and comput...

Edalat Radfar - One of the best experts on this subject based on the ideXlab platform.

  • Single-channel stereoscopic video Imaging Modality based on transparent rotating deflector
    Optics Express, 2015
    Co-Authors: Edalat Radfar, Won Hyuk Jang, Leila Freidoony, Ji Hoon Park, Ki-chul Kwon, Byungjo Jung
    Abstract:

    In this study, we developed a single-channel stereoscopic video Imaging Modality based on a transparent rotating deflector (TRD). Sequential two-dimensional (2D) left and right images were obtained through the TRD synchronized with a camera, and the components of the Imaging Modality were controlled by a microcontroller unit. The Imaging Modality was characterized by evaluating the stereoscopic video image generation, rotation of the TRD, heat generation by the stepping motor, and image quality and its stability in terms of the structural similarity index. The degree of depth perception was estimated and subjective analysis was performed to evaluate the depth perception improvement. The results show that the single-channel stereoscopic video Imaging Modality may: 1) overcome some limitations of conventional stereoscopic video Imaging modalities; 2) be a potential economical compact stereoscopic Imaging Modality if the system components can be miniaturized; 3) be easily integrated into current 2D optical Imaging modalities to produce a stereoscopic image; and 4) be applied to various medical and industrial fields.

  • single-channel stereoscopic video Imaging Modality based on a transparent rotating deflector
    Proceedings of SPIE, 2015
    Co-Authors: Edalat Radfar, Ji Hoon Park, Myungjin Ha, Sungkon Yu, Seul Gi Jang, Byungjo Jung
    Abstract:

    This paper introduces a stereoscopic video Imaging Modality based on a transparent rotating deflector (TRD). Sequential two-dimensional (2D) left and right images were obtained by rotating the TRD on a stepping motor synchronized with a complementary metal-oxide semiconductor camera, and the components of the Imaging Modality were controlled through general purpose input/output ports using a microcontroller unit. In this research, live stereoscopic videos were visualized on a personal computer by both active shutter 3D and passive polarization 3D methods. The Imaging Modality was characterized by evaluating the stereoscopic video image generation, rotation characteristics of the TRD. The level of 3D conception was estimated in terms of simplified human stereovision. The results show that singlechannel stereoscopic video Imaging Modality has the potential to become an economical compact stereoscopic device as the system components are amenable to miniaturization; and could be applied in a wide variety of fields.

Joseph M Gleason - One of the best experts on this subject based on the ideXlab platform.

  • a comprehensive review of pediatric urachal anomalies and predictive analysis for adult urachal adenocarcinoma
    The Journal of Urology, 2015
    Co-Authors: Joseph M Gleason, Paul R Bowlin, Darius J Bagli, Armando J Lorenzo, Tarek Hassouna
    Abstract:

    Purpose: We examined the presentation, diagnosis and management of radiologically detected pediatric urachal anomalies and assessed the risk of malignant degeneration.Materials and Methods: Our radiology database (2000 to 2012) was queried for all children younger than 18 years who were diagnosed with a urachal anomaly radiographically, and the operative database was used to determine those who underwent excision. Data collected included demographics, presenting symptoms, Imaging Modality and indication for excision. These data were compared to the Ontario Cancer Registry to determine the risk of malignancy.Results: A total of 721 patients were radiographically diagnosed with a urachal anomaly (667 incidentally), yielding a prevalence of 1.03% of the general pediatric population. Diagnoses were urachal remnants (89% of cases), urachal cysts (9%) and patent urachus (1.5%). Ultrasonography was the most common Imaging Modality (92% of cases), followed by fluoroscopy/voiding cystourethrography (5%) and comput...

Ji Hoon Park - One of the best experts on this subject based on the ideXlab platform.

  • Single-channel stereoscopic video Imaging Modality based on transparent rotating deflector
    Optics Express, 2015
    Co-Authors: Edalat Radfar, Won Hyuk Jang, Leila Freidoony, Ji Hoon Park, Ki-chul Kwon, Byungjo Jung
    Abstract:

    In this study, we developed a single-channel stereoscopic video Imaging Modality based on a transparent rotating deflector (TRD). Sequential two-dimensional (2D) left and right images were obtained through the TRD synchronized with a camera, and the components of the Imaging Modality were controlled by a microcontroller unit. The Imaging Modality was characterized by evaluating the stereoscopic video image generation, rotation of the TRD, heat generation by the stepping motor, and image quality and its stability in terms of the structural similarity index. The degree of depth perception was estimated and subjective analysis was performed to evaluate the depth perception improvement. The results show that the single-channel stereoscopic video Imaging Modality may: 1) overcome some limitations of conventional stereoscopic video Imaging modalities; 2) be a potential economical compact stereoscopic Imaging Modality if the system components can be miniaturized; 3) be easily integrated into current 2D optical Imaging modalities to produce a stereoscopic image; and 4) be applied to various medical and industrial fields.

  • single-channel stereoscopic video Imaging Modality based on a transparent rotating deflector
    Proceedings of SPIE, 2015
    Co-Authors: Edalat Radfar, Ji Hoon Park, Myungjin Ha, Sungkon Yu, Seul Gi Jang, Byungjo Jung
    Abstract:

    This paper introduces a stereoscopic video Imaging Modality based on a transparent rotating deflector (TRD). Sequential two-dimensional (2D) left and right images were obtained by rotating the TRD on a stepping motor synchronized with a complementary metal-oxide semiconductor camera, and the components of the Imaging Modality were controlled through general purpose input/output ports using a microcontroller unit. In this research, live stereoscopic videos were visualized on a personal computer by both active shutter 3D and passive polarization 3D methods. The Imaging Modality was characterized by evaluating the stereoscopic video image generation, rotation characteristics of the TRD. The level of 3D conception was estimated in terms of simplified human stereovision. The results show that singlechannel stereoscopic video Imaging Modality has the potential to become an economical compact stereoscopic device as the system components are amenable to miniaturization; and could be applied in a wide variety of fields.