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Related Concept Videos

Depth Perception and Spatial Vision01:15

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Depth perception is the ability to perceive objects three-dimensionally. It relies on two types of cues: binocular and monocular. Binocular cues depend on the combination of images from both eyes and how the eyes work together. Since the eyes are in slightly different positions, each eye captures a slightly different image. This disparity between images, known as binocular disparity, helps the brain interpret depth. When the brain compares these images, it determines the distance to an object.
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Light rays enter the eye through the cornea, a transparent dome-shaped tissue that is the eye's outermost layer. The cornea bends or refracts, light rays traveling to the pupil. The shape of the cornea determines how much of the light is bent and whether the image will be focused correctly on the retina at the back of the eye. Once the light has passed through both refraction layers, it converges into a single focal point onto a small area. This is where photoreceptors start transforming...
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Optical Scatter Microscopy Based on Two-Dimensional Gabor Filters
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Deep Attentional Guided Image Filtering.

Zhiwei Zhong, Xianming Liu, Junjun Jiang

    IEEE Transactions on Neural Networks and Learning Systems
    |April 4, 2023
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    Summary
    This summary is machine-generated.

    This study introduces deep attentional guided image filtering to improve image processing by integrating information from both guide and target images, reducing artifacts and enhancing results in various computer vision tasks.

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    Area of Science:

    • Computer Vision
    • Computer Graphics
    • Image Processing

    Background:

    • Guided filtering transfers structure information but often creates artifacts due to differing image edges.
    • Existing methods neglect the mutual dependency between guidance and target images.

    Purpose of the Study:

    • To propose a novel framework for deep attentional guided image filtering.
    • To integrate complementary information from both guidance and target images effectively.
    • To reduce artifacts in image processing tasks.

    Main Methods:

    • Developed an attentional kernel learning module to generate dual filter kernels from guidance and target images.
    • Modeled pixelwise dependency for adaptive kernel combination.
    • Implemented a multiscale guided image filtering module for coarse-to-fine processing.
    • Utilized a multiscale fusion strategy to reuse intermediate results.

    Main Results:

    • The proposed framework significantly reduces artifacts compared to existing methods.
    • Achieved state-of-the-art performance in guided super-resolution, cross-modality restoration, and semantic segmentation.
    • Secured first place in the ACM ICMR 2021 real depth map super-resolution challenge.

    Conclusions:

    • Deep attentional guided image filtering effectively integrates complementary image information.
    • The framework offers superior performance across diverse computer vision applications.
    • This approach advances the field of guided image filtering.