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相关概念视频

Factors Affecting Perception01:25

Factors Affecting Perception

1.6K
Perception is influenced by perceptual set, context, motivation, and emotion. Perceptual set, or perceptual expectancy, refers to the tendency to perceive things in a particular way, influenced by previous experiences and expectations. This phenomenon affects the interpretation of stimuli, creating a set of mental tendencies and assumptions that impact sensory perceptions of sound, taste, touch, and sight.
An illustrative example of a perceptual set is the scenario where an airline pilot told...
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Gestalt Principles of Perception01:21

Gestalt Principles of Perception

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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...
311
Depth Perception and Spatial Vision01:15

Depth Perception and Spatial Vision

661
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.
661
Framing Effects03:26

Framing Effects

7.4K
Information is everywhere and its presentation—such as how and when items are presented—can impact our perceptions and decisions surrounding the info. This broad concept umbrellas framing effects—influences that occur due to the way information is framed in its appearance, whether it’s purely the order or the specific wording of a message. Let’s take a look at numerous ways in which two versions of something can objectively say the same thing, yet we respond in...
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Perceptual Constancy01:12

Perceptual Constancy

396
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...
396
Parallel Processing01:20

Parallel Processing

152
The brain processes sensory information rapidly due to parallel processing, which involves sending data across multiple neural pathways at the same time. This method allows the brain to manage various sensory qualities, such as shapes, colors, movements, and locations, all concurrently. For instance, when observing a forest landscape, the brain simultaneously processes the movement of leaves, the shapes of trees, the depth between them, and the various shades of green. This enables a quick and...
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相关实验视频

Updated: Jul 6, 2025

Applying Hyperspectral Reflectance Imaging to Investigate the Palettes and the Techniques of Painters
07:05

Applying Hyperspectral Reflectance Imaging to Investigate the Palettes and the Techniques of Painters

Published on: June 18, 2021

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绘画中的日间时间感知.

Cehao Yu1,2, Mitchell J P Van Zuijlen3,4, Cristina Spoiala1,5

  • 1Perceptual Intelligence Laboratory, Faculty of Industrial Design Engineering, Delft University of Technology, Delft, The Netherlands.

Journal of vision
|January 2, 2024
PubMed
概括
此摘要是机器生成的。

艺术家 艺术家 艺术家

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Last Updated: Jul 6, 2025

Applying Hyperspectral Reflectance Imaging to Investigate the Palettes and the Techniques of Painters
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科学领域:

  • 视觉感知 视觉感知 视觉感知
  • 艺术史 艺术史 艺术史
  • 计算成像技术的成像

背景情况:

  • 白天光的光谱特征在一天中可预见地发生变化.
  • 自然光中的这些变化会影响物体的外观,并可以指示白天的时间.
  • 艺术家可以利用颜色选择来代表户外场景中一天中的特定时间.

研究的目的:

  • 为了调查观众是否能够准确地感知绘画中描绘的白天时间.
  • 为了确定图像统计数据,如色度和亮度,与感知的一天时间相关.
  • 探索艺术家是否始终使用特定的色调板来表示早晨或晚上的光线.

主要方法:

  • 对西欧绘画 (17-20世纪) 进行了两次在线评分实验.
  • 实验1:观众根据一天中的七个时间选择对绘画进行评分.
  • 实验2:观众将画作分类为早上或晚上.
  • 分析图像统计数据 (亮度,对比度,和度,色调) 并使用多重线性回归与观众评分相关联.

主要成果:

  • 观众的评分显示了绘画中重要的和一致的,虽然有时模糊的 (早上/晚上),一天中的时间感知.
  • 与感知时间相关的图像统计:"早晨"与更高的亮度,对比度,和和特定的色调变化 (更深的黄色/更明亮的蓝色) 相关;"傍晚"与较低的值和相反的色调变化相关.
  • 一个基于图像统计的预测模型解释了每天时间感知差异的76%.
  • 实验2证实,图像统计预测了感知时间 (早上与晚上).

结论:

  • 艺术家们采用不同的色调板和图案来描绘不同时间.
  • 人类视觉系统对自然光的变化做出了一致的假设,如图所示.
  • 绘画中的颜色和亮度变化作为可靠的线索来解码所描绘的白天时间.