局部线索可以将图像补丁分类为表面,物体边界或照明变化
Christopher DiMattina1, Eden E Sterk1,2, Madelyn G Arena1
1Computational Perception Laboratory, Department of Psychology, Florida Gulf Coast University, Fort Myers FL 33965.
bioRxiv : the preprint server for biology
|March 10, 2025
概括
人类使用边界清晰度,亮度和纹理线索来区分视觉场景中的阴影和遮蔽边缘. 这些发现与机器学习模型一致,增强了我们对场景解析机制的理解.
科学领域:
- 视觉感知 视觉感知 视觉感知
- 计算神经科学是一种计算神经科学.
- 图像处理 图像处理
背景情况:
- 准确的视觉场景解析需要边缘检测和原因识别.
- 以前的研究表明,机器学习模型对边界度和纹理敏感,用于边缘分类.
- 人类对这些特定线索的使用,用于影子与遮蔽边缘分类,仍然未经调查.
研究的目的:
- 调查人类观察者在将边缘分类为阴影或遮蔽时是否使用边界度,纹理调制和亮度调制线索.
- 将人类边缘分类策略与图像可计算的神经网络的分类策略进行比较.
- 了解视觉场景分析背后的感知机制.
主要方法:
- 创建了具有参数操纵边界度,纹理调制和亮度调制的合成图像补丁.
- 观察者接受了自然图像补丁 (遮蔽,阴影,均纹理) 的训练.
- 然后,观察者在测试实验中对合成边界图像进行分类,并使用后勤回归来建模性能.
主要成果:
- 亮度调制和边界度在边缘分类中表现出强烈的相互作用.
- 带有增加亮度调制的利边缘更有可能被归类为遮.
- 随着亮度调节的增加,模糊边缘更有可能被归类为阴影,而纹理调节的影响最小.
结论:
- 人类观察者利用边界度,亮度和纹理线索进行边缘分类,反映机器学习模型的灵敏度.
- 这些发现提供了对视觉场景解析的神经和感知机制的见解.
- 该研究验证了对参数合成刺激的使用,以调查视觉感知.
相关概念视频
Depth Perception and Spatial Vision
503
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.
503
Vision
52.9K
Vision is the result of light being detected and transduced into neural signals by the retina of the eye. This information is then further analyzed and interpreted by the brain. First, light enters the front of the eye and is focused by the cornea and lens onto the retina—a thin sheet of neural tissue lining the back of the eye. Because of refraction through the convex lens of the eye, images are projected onto the retina upside-down and reversed.
52.9K
Visual System
468
Light enters the eye through the cornea, a transparent, dome-shaped surface covering the surface of the eyeball that helps to direct and focus incoming light. This light is then channeled toward the pupil, an adjustable opening whose size is controlled by the iris. The iris, a pigmented muscle, regulates the amount of light entering the eye by contracting or dilating the pupil, thereby ensuring optimal light levels for clear vision.
Once through the pupil, the light passes through the lens, a...
Once through the pupil, the light passes through the lens, a...
468
Perceptual Constancy
315
Perceptual constancy is the ability to recognize that objects remain consistent and unchanged even when their appearance varies due to changes in sensory input. There are four main types of perceptual constancy: size constancy, shape constancy, color constancy, and brightness constancy.
Size constancy is the recognition that an object remains the same size, even when its image on the retina changes. For instance, a bus is perceived to be large enough to carry people, even if it looks tiny from...
Size constancy is the recognition that an object remains the same size, even when its image on the retina changes. For instance, a bus is perceived to be large enough to carry people, even if it looks tiny from...
315
Gestalt Principles of Perception
268
Gestalt principles provide a framework for understanding how humans perceive objects as unified wholes within their context. These principles are essential in explaining the cognitive processes that make sense of complex visual stimuli by organizing them into coherent groups. One fundamental principle is proximity, which posits that objects located close to each other are perceived as a collective group. For instance, when dots are positioned near one another, the visual system interprets them...
268
Introduction to Sensory Receptors
3.0K
Sensory receptors are vital in our ability to perceive and interpret the world. Sensory receptors are specialized cells in the peripheral nervous system that respond to various stimuli and enable one to experience different sensations. Based on specific criteria, sensory receptors are classified into distinct types.
The first classification criterion is based on cell type, position, and function. Some receptor cells are neurons with free nerve endings, where their dendrites are embedded in the...
The first classification criterion is based on cell type, position, and function. Some receptor cells are neurons with free nerve endings, where their dendrites are embedded in the...
3.0K


