scholarly journals Neural Photometry-guided Visual Attribute Transfer

2021 ◽  
pp. 1-1
Author(s):  
Carlos Rodriguez-Pardo ◽  
Elena Garces
Keyword(s):  
Visual Attribute

scholarly journals Hydroponic Basil Production: Temperature Influences Volatile Organic Compound Profile, but Not Overall Consumer Preference

Horticulturae ◽  
2022 ◽  
Vol 8 (1) ◽  
pp. 76
Author(s):  
Kellie J. Walters ◽  
Roberto G. Lopez
Keyword(s):  
Organic Compound ◽  
Volatile Organic Compound ◽  
Growth And Development ◽  
Consumer Preference ◽  
Gas Chromatography Mass Spectrometry ◽  
Methyl Chavicol ◽  
Sweet Basil ◽  
Visual Attribute ◽  
Volatile Organic ◽  
Production Temperature

Altering the growing temperature during controlled-environment production not only influences crop growth and development, but can also influence volatile organic compound (VOC) production and, subsequently, sensory attributes of culinary herbs. Therefore, the objectives of this study were to (1) quantify the influence of mean daily temperature (MDT) and daily light integral (DLI) on key basil phenylpropanoid and terpenoid concentrations, (2) determine if differences in sensory characteristics due to MDT and DLI influence consumer preference, and (3) identify the sweet basil attributes consumers prefer. Thus, 2-week-old sweet basil ‘Nufar’ seedlings were transplanted into deep-flow hydroponic systems in greenhouses with target MDTs of 23, 26, 29, 32, or 35 °C and DLIs of 7, 9, or 12 mol·m−2·d−1. After three weeks, the two most recently mature leaves were harvested for gas chromatography–mass spectrometry (GC–MS) and consumer sensory analysis. Panel evaluations were conducted through a sliding door with samples served individually while panelists answered Likert scale and open-ended quality attribute and sensory questions. The DLI did not influence VOC concentrations. Increasing MDT from 23 to 36 °C during production increased 1,8 cineole, eugenol, and methyl chavicol concentrations linearly and did not affect linalool concentration. The increases in phenylpropanoid (eugenol and methyl chavicol) were greater than increases in terpenoid (1,8 cineole) concentrations. However, these increases did not impact overall consumer or flavor preference. The MDT during basil production influenced appearance, texture, and color preference of panelists. Taken together, MDT during production influenced both VOC concentrations and textural and visual attribute preference of basil but did not influence overall consumer preference. Therefore, changing the MDT during production can be used to alter plant growth and development without significantly affecting consumer preference.

Fine-Grained Visual Attribute Extraction from Fashion Wear

2021 ◽  
Author(s):  
Viral Parekh ◽  
Karimulla Shaik ◽  
Soma Biswas ◽  
Muthusamy Chelliah
Keyword(s):  
Fine Grained ◽  
Visual Attribute ◽  
Attribute Extraction

scholarly journals The latency for correcting a movement depends on the visual attribute that defines the target

2008 ◽  
Vol 187 (2) ◽  
pp. 219-228 ◽  
Author(s):  
Margot M. Veerman ◽  
Eli Brenner ◽  
Jeroen B. J. Smeets
Keyword(s):  
Visual Attribute

Visual attribute detction for pedestrian detection

2016 ◽  
Vol 78 (19) ◽  
pp. 26833-26850 ◽  
Author(s):  
Jing Zhang ◽  
Fu-Wu Li ◽  
Wei-Zhi Nie ◽  
Wen-Hui Li ◽  
Yu-Ting Su
Keyword(s):  
Pedestrian Detection ◽  
Visual Attribute

scholarly journals Serial dependence tracks objects and scenes independently

2021 ◽  
Author(s):  
Thérèse Collins
Keyword(s):  
Visual Processing ◽  
Scene Perception ◽  
Temporal Integration ◽  
Object Perception ◽  
Serial Dependence ◽  
Recent Past ◽  
Individual Object ◽  
Ensemble Perception ◽  
Visual Attribute ◽  
Feature Values

The visual world is made up of objects and scenes. Object perception requires both discriminating an individual object from others and binding together different perceptual samples of that object across time. Such binding manifests by serial dependence, the attraction of the current perception of a visual attribute towards values of that attribute seen in the recent past. Scene perception is subserved by global mechanisms like ensemble perception, the rapid extraction of the average feature value of a group of objects. The current study examined to what extent the perception of single objects in multi-object scenes depended on previous feature values of that object, or on the average previous attribute of all objects in the scene. Results show that serial dependence occurs independently on two simultaneously present objects, that ensemble perception depends on previous ensembles, and that serial dependence of an individual object occurs only on the features of that particular object. These results suggest that the temporal integration of successive perceptual samples operates simultaneously at independent levels of visual processing.

scholarly journals Predicting how color and shape combine in the human visual system to direct attention

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Simona Buetti ◽  
Jing Xu ◽  
Alejandro Lleras
Keyword(s):  
Visual System ◽  
Human Visual System ◽  
Target Object ◽  
Visual Attributes ◽  
Human Attention ◽  
Visual Attribute ◽  
The Brain

AbstractObjects in a scene can be distinct from one another along a multitude of visual attributes, such as color and shape, and the more distinct an object is from its surroundings, the easier it is to find it. However, exactly how this distinctiveness advantage arises in vision is not well understood. Here we studied whether and how visual distinctiveness along different visual attributes (color and shape, assessed in four experiments) combine to determine an object’s overall distinctiveness in a scene. Unidimensional distinctiveness scores were used to predict performance in six separate experiments where a target object differed from distractor objects along both color and shape. Results showed that there is mathematical law determining overall distinctiveness as the simple sum of the distinctiveness scores along each visual attribute. Thus, the brain must compute distinctiveness scores independently for each visual attribute before summing them into the overall score that directs human attention.

PLANT LEAF IDENTIFICATION BASED ON VOLUMETRIC FRACTAL DIMENSION

2009 ◽  
Vol 23 (06) ◽  
pp. 1145-1160 ◽  
Author(s):  
ANDRÉ RICARDO BACKES ◽  
DALCIMAR CASANOVA ◽  
ODEMIR MARTINEZ BRUNO
Keyword(s):  
Fractal Dimension ◽  
Fourier Analysis ◽  
Complex Task ◽  
Classification Rate ◽  
Method Performance ◽  
Analysis Process ◽  
Novel Approach ◽  
Visual Attribute ◽  
Novel Method ◽  
High Level

Texture is an important visual attribute used to describe the pixel organization in an image. As well as it being easily identified by humans, its analysis process demands a high level of sophistication and computer complexity. This paper presents a novel approach for texture analysis, based on analyzing the complexity of the surface generated from a texture, in order to describe and characterize it. The proposed method produces a texture signature which is able to efficiently characterize different texture classes. The paper also illustrates a novel method performance on an experiment using texture images of leaves. Leaf identification is a difficult and complex task due to the nature of plants, which presents a huge pattern variation. The high classification rate yielded shows the potential of the method, improving on traditional texture techniques, such as Gabor filters and Fourier analysis.

Flicker is a primitive visual attribute in visual search.

2009 ◽  
Vol 63 (4) ◽  
pp. 319-322 ◽  
Author(s):  
Thomas M. Spalek ◽  
Jun-ichiro Kawahara ◽  
Vincent Di Lollo
Keyword(s):  
Visual Search ◽  
Visual Attribute

Perceptual filling-in at the scotoma following a monocular retinal lesion in the monkey

1997 ◽  
Vol 14 (1) ◽  
pp. 89-101 ◽  
Author(s):  
Ikuya Murakami ◽  
Hidehiko Komatsu ◽  
Masaharu Kinoshita
Keyword(s):  
Visual Field ◽  
Receptive Fields ◽  
Macaque Monkey ◽  
Blind Spot ◽  
Retinal Lesion ◽  
Visual Inputs ◽  
Visual Attribute ◽  
Retinotopic Organization ◽  
Normal Visual Field ◽  
Behavioral Evidence

AbstractAlthough no visual inputs arise from the blind spot, the same visual attribute there as in the visual field surrounding the blind spot is perceived. Because of this remarkable “perceptual filling-in,” a hole corresponding to the blind spot is not perceived, even when one eye is closed. Does the same phenomenon occur in the case of a scotoma in which visual inputs are lost postnatally due to a retinal lesion? We report that it did: in the macaque monkey, behavioral evidence for filling-in at a scotoma produced by a laser-induced monocular retinal lesion was obtained. The visual receptive fields of neurons in the primary visual cortex (VI) in and around the representation of the visual field corresponding to the scotoma were also mapped, and no clear difference between the retinotopic organization of this part in VI and that found in the normal visual field was found. Also, perceptual filling-in was found to occur only two days after the lesion. These findings suggest that the normal visual system possesses a mechanism that yields filling-in when some part of the retina is damaged, and that such a mechanism requires no topographical reorganization in VI.

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