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Postural instability and gait disturbance are associated with abnormal stereopsis in Parkinson's disease.
PLoS One
January 2025
Department of Neurology, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Republic of Korea.
Background: Visual dysfunction, including abnormal stereopsis, is a significant non-motor symptom in Parkinson's disease (PD) that can reduce quality of life and appears early in the disease. Abnormal stereopsis is associated with worsening of bradykinesia and freezing of gait, though the exact pathways linking stereopsis to motor symptoms remain unclear. Furthermore, in PD patients, the pedunculopontine nucleus and laterodorsal tegmental complex play an active role in sensorimotor control, and these areas provide cholinergic projections.
View Article and Find Full Text PDFAn seamless stitching method for large field equivalent center projection image based on rotating camera.
Sci Rep
November 2024
School of Geodesy and Geomatics, Jiangsu Normal University, Xuzhou, China.
Article Synopsis
- Digital cameras often have a narrow field of view and high photosensitivity, resulting in low resolution and limited accuracy in close-range photogrammetry, which is important for precise industrial engineering.
- The paper introduces a rotating camera design that employs a seamless stitching model to create large-format images, enhancing the capability of close-range photogrammetry.
- Experimental results indicate that this new method significantly increases the image size from 916 × 687 pixels to 4977 × 671 pixels, improving coverage and supporting advancements in precision industrial applications.
Underwater stereo cameras can effectively capture intricate environments with restricted accessibility, offering an appealing solution for precise perception. Stereo imaging is however susceptible to distortions caused by the refraction of incoming rays. These distortions are nonlinear and challenge the standard single viewpoint projection assumption.
View Article and Find Full Text PDFStereo and LiDAR Loosely Coupled SLAM Constrained Ground Detection.
Sensors (Basel)
October 2024
School of Computer Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
In many robotic applications, creating a map is crucial, and 3D maps provide a method for estimating the positions of other objects or obstacles. Most of the previous research processes 3D point clouds through projection-based or voxel-based models, but both approaches have certain limitations. This paper proposes a hybrid localization and mapping method using stereo vision and LiDAR.
View Article and Find Full Text PDFImpact of antral follicle count on follicular-luteal characteristics, superovulatory response, and embryo quality in Sahiwal cows.
Front Vet Sci
October 2024
Animal Reproduction Division, ICAR-Indian Veterinary Research Institute (ICAR-IVRI), Bareilly, India.
The study aimed to evaluate the effect of antral follicle count (AFC) on follicular and luteal development during the estrous cycle and superovulatory period, as well as on superovulatory response and embryo quality within the MOET program. A total of 48 estrus-induced (500 μg PGF2α, Single dose, IM) Sahiwal cows () with a BCS between 3.5 and 4.
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