SlideShare une entreprise Scribd logo
PERCEPTION OF SPACE,DISTANCE AND DEPTH...
Becoming aware of something via the senses…
Define:
 Space
 Spatial attribute
 2D &3D & how this occurs ???
 Depth
 Cues:
 1.Binocular
 2.Monocular
Visual field or surface where
things move or being placed.
3-Dimensional
2-Dimensional
Retinal image -flat
formation of image .
Perception which is
made in mind.
Transformation is known as
Depth/Distance/Depth
Perception.
*We not only perceive spatial attributes but also the distance between them.
DEPTH PERCEPTION…
BINOCULAR CUES… MONOCULAR
CUES…
 Depend on cues
i.e. a stimulus
that provides
information about
what to
do/sources of
info.
 Allowance to perceive depth by
both eyes…
 Allowance to perceive depth by
one eye from both…
MONOCULAR CUES/ PSYCHOLOGICAL CUES…
1.Relative size
2.Interposition/Overlapping
3.Linear Perspective
4.Aerial Perspective 5.Light/Shade
6.Relative Height
7.Texture Gradient
8.Motion Parallax
 Away small.
 Near big.
 As it goes far becoming small.
 Based on the distance of object with respect to our past and present
experience with that object.
1.RELATIVE SIZE
 With respect to parallel plane ,if we see from near to farther two
objects or things seems to come closer like they are meeting each
other at a point.
3.LINEAR PERSPECTIVE
 When two objects overlap each other :
 The object being overlapped seems far away
 The object overlapping seems near
2.INTERPOSITION/OVERLAPPING
4.AERIAL PERSPECTIVE
 When the farther view become hazy due to impurities in
air like particles of dust and moisture but the nearer
view is clear.
5.LIGHT AND SHADE
8.MOTION PARALLAX
7.TEXTURE GRADIENT
6.RELATIVE HEIGHT
 Larger objects seems to be nearer and the smaller objects seems
to be farther away from the person perceiving the objects.
 Sometimes two objects seems similar in size but they r not.
PERCEPTION OF SPACE,DEPTH AND DISTANCE.pptx
PERCEPTION OF SPACE,DEPTH AND DISTANCE.pptx
PERCEPTION OF SPACE,DEPTH AND DISTANCE.pptx
PERCEPTION OF SPACE,DEPTH AND DISTANCE.pptx
PERCEPTION OF SPACE,DEPTH AND DISTANCE.pptx
PERCEPTION OF SPACE,DEPTH AND DISTANCE.pptx
PERCEPTION OF SPACE,DEPTH AND DISTANCE.pptx
PERCEPTION OF SPACE,DEPTH AND DISTANCE.pptx
PERCEPTION OF SPACE,DEPTH AND DISTANCE.pptx
PERCEPTION OF SPACE,DEPTH AND DISTANCE.pptx

Contenu connexe

Tendances

Perception and Illusion
Perception and IllusionPerception and Illusion
Perception and Illusion
Zain ul Abideen
 
Attention
Attention Attention
Attention gsjus
 
Memory
MemoryMemory
Perception
PerceptionPerception
Perceptionxenub27
 
Perceptual constancy and set
Perceptual constancy and setPerceptual constancy and set
Perceptual constancy and set
coburgpsych
 
History Of Cognitive Psychology
History Of Cognitive PsychologyHistory Of Cognitive Psychology
History Of Cognitive Psychology
Ali Hasan
 
PERCEPTUAL PROCESS
PERCEPTUAL PROCESSPERCEPTUAL PROCESS
PERCEPTUAL PROCESSNitika Verma
 
Consciousness In Psychology
Consciousness In PsychologyConsciousness In Psychology
Consciousness In Psychology
Riphah International University Rawalpindi
 
Consciousness
ConsciousnessConsciousness
Consciousness
Richin Koshy
 
Cognitvie theory of personality
Cognitvie theory of personalityCognitvie theory of personality
Cognitvie theory of personality
QURATULAIN MUGHAL
 
Psychophysics - Siddhartha
Psychophysics - SiddharthaPsychophysics - Siddhartha
Psychophysics - Siddhartha
Siddhartha A
 
Perception Slides
Perception SlidesPerception Slides
Perception Slides
Eric Castro
 
perception and its factors in psychology
perception and its factors in psychologyperception and its factors in psychology
perception and its factors in psychology
murtazaali313527
 
Cognitive psychology introduction
Cognitive psychology introductionCognitive psychology introduction
Cognitive psychology introduction
Col Mukteshwar Prasad
 
Attention final
Attention finalAttention final
Attention final
Sushma Rathee
 
Memory and Models of Memory
Memory and Models of MemoryMemory and Models of Memory
Memory and Models of Memory
cowmoo83
 
Social learning theories - Personalities theories
Social learning theories - Personalities theoriesSocial learning theories - Personalities theories
Social learning theories - Personalities theories
Manu Melwin Joy
 
Information processing theories
Information processing theoriesInformation processing theories
Information processing theories
Tarlac State University – College of Education
 
information processing theory
information processing theoryinformation processing theory
information processing theory
Iris Israel
 
Social cognition
Social  cognitionSocial  cognition
Social cognition
Surashmie Kaalmegh
 

Tendances (20)

Perception and Illusion
Perception and IllusionPerception and Illusion
Perception and Illusion
 
Attention
Attention Attention
Attention
 
Memory
MemoryMemory
Memory
 
Perception
PerceptionPerception
Perception
 
Perceptual constancy and set
Perceptual constancy and setPerceptual constancy and set
Perceptual constancy and set
 
History Of Cognitive Psychology
History Of Cognitive PsychologyHistory Of Cognitive Psychology
History Of Cognitive Psychology
 
PERCEPTUAL PROCESS
PERCEPTUAL PROCESSPERCEPTUAL PROCESS
PERCEPTUAL PROCESS
 
Consciousness In Psychology
Consciousness In PsychologyConsciousness In Psychology
Consciousness In Psychology
 
Consciousness
ConsciousnessConsciousness
Consciousness
 
Cognitvie theory of personality
Cognitvie theory of personalityCognitvie theory of personality
Cognitvie theory of personality
 
Psychophysics - Siddhartha
Psychophysics - SiddharthaPsychophysics - Siddhartha
Psychophysics - Siddhartha
 
Perception Slides
Perception SlidesPerception Slides
Perception Slides
 
perception and its factors in psychology
perception and its factors in psychologyperception and its factors in psychology
perception and its factors in psychology
 
Cognitive psychology introduction
Cognitive psychology introductionCognitive psychology introduction
Cognitive psychology introduction
 
Attention final
Attention finalAttention final
Attention final
 
Memory and Models of Memory
Memory and Models of MemoryMemory and Models of Memory
Memory and Models of Memory
 
Social learning theories - Personalities theories
Social learning theories - Personalities theoriesSocial learning theories - Personalities theories
Social learning theories - Personalities theories
 
Information processing theories
Information processing theoriesInformation processing theories
Information processing theories
 
information processing theory
information processing theoryinformation processing theory
information processing theory
 
Social cognition
Social  cognitionSocial  cognition
Social cognition
 

Similaire à PERCEPTION OF SPACE,DEPTH AND DISTANCE.pptx

Year 11 Perception 2
Year 11 Perception 2Year 11 Perception 2
Year 11 Perception 2
MsGodsave
 
perception .pptx
perception .pptxperception .pptx
perception .pptx
Ayesha Yaqoob
 
Perception
PerceptionPerception
Perception
ArpitaSharma189450
 
009457343.pdf
009457343.pdf009457343.pdf
009457343.pdf
EidTahir
 
Perception Slides
Perception SlidesPerception Slides
Perception Slides
Eric Castro
 
Photography lesson 05
Photography lesson  05Photography lesson  05
EDU290 Depth Perception
EDU290 Depth PerceptionEDU290 Depth Perception
EDU290 Depth Perceptionduncale
 
Sensation and Perception 2
Sensation and Perception 2Sensation and Perception 2
Sensation and Perception 2
Mypzi
 
perception.pptx
perception.pptxperception.pptx
perception.pptx
Roopa127518
 
MODULE 2 computer vision part 2 depth estimation
MODULE 2 computer vision part 2 depth estimationMODULE 2 computer vision part 2 depth estimation
MODULE 2 computer vision part 2 depth estimation
garimajain959768
 
Ask
AskAsk
Report
ReportReport
Year 11 Perception Recap
Year 11 Perception RecapYear 11 Perception Recap
Year 11 Perception Recap
MsGodsave
 
Psykofysik
PsykofysikPsykofysik
Psykofysik
Torben Helstrup
 
chapter 3 - Sensation and perception 2013
chapter 3 - Sensation and perception 2013chapter 3 - Sensation and perception 2013
chapter 3 - Sensation and perception 2013clairecgardner
 
Remote Sensing
Remote SensingRemote Sensing
Remote Sensing
SovanBar
 
Binocular Vision.pptx
Binocular Vision.pptxBinocular Vision.pptx
Binocular Vision.pptx
Chandigarh University
 
Fundamentals of visual communication unit iii
Fundamentals of visual communication unit iiiFundamentals of visual communication unit iii
Fundamentals of visual communication unit iii
RangarajanN6
 
Ethiraj College For Women - Dr. K Jayanthi Rani - PERCEPTION .pptx
Ethiraj College For Women - Dr. K Jayanthi Rani - PERCEPTION .pptxEthiraj College For Women - Dr. K Jayanthi Rani - PERCEPTION .pptx
Ethiraj College For Women - Dr. K Jayanthi Rani - PERCEPTION .pptx
DrMsJayanthiRani
 

Similaire à PERCEPTION OF SPACE,DEPTH AND DISTANCE.pptx (20)

Year 11 Perception 2
Year 11 Perception 2Year 11 Perception 2
Year 11 Perception 2
 
perception .pptx
perception .pptxperception .pptx
perception .pptx
 
Perception
PerceptionPerception
Perception
 
009457343.pdf
009457343.pdf009457343.pdf
009457343.pdf
 
Perception Slides
Perception SlidesPerception Slides
Perception Slides
 
Photography lesson 05
Photography lesson  05Photography lesson  05
Photography lesson 05
 
EDU290 Depth Perception
EDU290 Depth PerceptionEDU290 Depth Perception
EDU290 Depth Perception
 
Sensation and Perception 2
Sensation and Perception 2Sensation and Perception 2
Sensation and Perception 2
 
perception.pptx
perception.pptxperception.pptx
perception.pptx
 
MODULE 2 computer vision part 2 depth estimation
MODULE 2 computer vision part 2 depth estimationMODULE 2 computer vision part 2 depth estimation
MODULE 2 computer vision part 2 depth estimation
 
Ask
AskAsk
Ask
 
Report
ReportReport
Report
 
Year 11 Perception Recap
Year 11 Perception RecapYear 11 Perception Recap
Year 11 Perception Recap
 
Psykofysik
PsykofysikPsykofysik
Psykofysik
 
chapter 3 - Sensation and perception 2013
chapter 3 - Sensation and perception 2013chapter 3 - Sensation and perception 2013
chapter 3 - Sensation and perception 2013
 
Remote Sensing
Remote SensingRemote Sensing
Remote Sensing
 
Binocular Vision.pptx
Binocular Vision.pptxBinocular Vision.pptx
Binocular Vision.pptx
 
Fundamentals of visual communication unit iii
Fundamentals of visual communication unit iiiFundamentals of visual communication unit iii
Fundamentals of visual communication unit iii
 
Depth & space
Depth & spaceDepth & space
Depth & space
 
Ethiraj College For Women - Dr. K Jayanthi Rani - PERCEPTION .pptx
Ethiraj College For Women - Dr. K Jayanthi Rani - PERCEPTION .pptxEthiraj College For Women - Dr. K Jayanthi Rani - PERCEPTION .pptx
Ethiraj College For Women - Dr. K Jayanthi Rani - PERCEPTION .pptx
 

Dernier

How libraries can support authors with open access requirements for UKRI fund...
How libraries can support authors with open access requirements for UKRI fund...How libraries can support authors with open access requirements for UKRI fund...
How libraries can support authors with open access requirements for UKRI fund...
Jisc
 
How to Make a Field invisible in Odoo 17
How to Make a Field invisible in Odoo 17How to Make a Field invisible in Odoo 17
How to Make a Field invisible in Odoo 17
Celine George
 
June 3, 2024 Anti-Semitism Letter Sent to MIT President Kornbluth and MIT Cor...
June 3, 2024 Anti-Semitism Letter Sent to MIT President Kornbluth and MIT Cor...June 3, 2024 Anti-Semitism Letter Sent to MIT President Kornbluth and MIT Cor...
June 3, 2024 Anti-Semitism Letter Sent to MIT President Kornbluth and MIT Cor...
Levi Shapiro
 
Unit 2- Research Aptitude (UGC NET Paper I).pdf
Unit 2- Research Aptitude (UGC NET Paper I).pdfUnit 2- Research Aptitude (UGC NET Paper I).pdf
Unit 2- Research Aptitude (UGC NET Paper I).pdf
Thiyagu K
 
TESDA TM1 REVIEWER FOR NATIONAL ASSESSMENT WRITTEN AND ORAL QUESTIONS WITH A...
TESDA TM1 REVIEWER  FOR NATIONAL ASSESSMENT WRITTEN AND ORAL QUESTIONS WITH A...TESDA TM1 REVIEWER  FOR NATIONAL ASSESSMENT WRITTEN AND ORAL QUESTIONS WITH A...
TESDA TM1 REVIEWER FOR NATIONAL ASSESSMENT WRITTEN AND ORAL QUESTIONS WITH A...
EugeneSaldivar
 
S1-Introduction-Biopesticides in ICM.pptx
S1-Introduction-Biopesticides in ICM.pptxS1-Introduction-Biopesticides in ICM.pptx
S1-Introduction-Biopesticides in ICM.pptx
tarandeep35
 
"Protectable subject matters, Protection in biotechnology, Protection of othe...
"Protectable subject matters, Protection in biotechnology, Protection of othe..."Protectable subject matters, Protection in biotechnology, Protection of othe...
"Protectable subject matters, Protection in biotechnology, Protection of othe...
SACHIN R KONDAGURI
 
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
siemaillard
 
CACJapan - GROUP Presentation 1- Wk 4.pdf
CACJapan - GROUP Presentation 1- Wk 4.pdfCACJapan - GROUP Presentation 1- Wk 4.pdf
CACJapan - GROUP Presentation 1- Wk 4.pdf
camakaiclarkmusic
 
STRAND 3 HYGIENIC PRACTICES.pptx GRADE 7 CBC
STRAND 3 HYGIENIC PRACTICES.pptx GRADE 7 CBCSTRAND 3 HYGIENIC PRACTICES.pptx GRADE 7 CBC
STRAND 3 HYGIENIC PRACTICES.pptx GRADE 7 CBC
kimdan468
 
Biological Screening of Herbal Drugs in detailed.
Biological Screening of Herbal Drugs in detailed.Biological Screening of Herbal Drugs in detailed.
Biological Screening of Herbal Drugs in detailed.
Ashokrao Mane college of Pharmacy Peth-Vadgaon
 
2024.06.01 Introducing a competency framework for languag learning materials ...
2024.06.01 Introducing a competency framework for languag learning materials ...2024.06.01 Introducing a competency framework for languag learning materials ...
2024.06.01 Introducing a competency framework for languag learning materials ...
Sandy Millin
 
A Survey of Techniques for Maximizing LLM Performance.pptx
A Survey of Techniques for Maximizing LLM Performance.pptxA Survey of Techniques for Maximizing LLM Performance.pptx
A Survey of Techniques for Maximizing LLM Performance.pptx
thanhdowork
 
Digital Artifact 2 - Investigating Pavilion Designs
Digital Artifact 2 - Investigating Pavilion DesignsDigital Artifact 2 - Investigating Pavilion Designs
Digital Artifact 2 - Investigating Pavilion Designs
chanes7
 
The basics of sentences session 5pptx.pptx
The basics of sentences session 5pptx.pptxThe basics of sentences session 5pptx.pptx
The basics of sentences session 5pptx.pptx
heathfieldcps1
 
Model Attribute Check Company Auto Property
Model Attribute  Check Company Auto PropertyModel Attribute  Check Company Auto Property
Model Attribute Check Company Auto Property
Celine George
 
Language Across the Curriculm LAC B.Ed.
Language Across the  Curriculm LAC B.Ed.Language Across the  Curriculm LAC B.Ed.
Language Across the Curriculm LAC B.Ed.
Atul Kumar Singh
 
Normal Labour/ Stages of Labour/ Mechanism of Labour
Normal Labour/ Stages of Labour/ Mechanism of LabourNormal Labour/ Stages of Labour/ Mechanism of Labour
Normal Labour/ Stages of Labour/ Mechanism of Labour
Wasim Ak
 
Guidance_and_Counselling.pdf B.Ed. 4th Semester
Guidance_and_Counselling.pdf B.Ed. 4th SemesterGuidance_and_Counselling.pdf B.Ed. 4th Semester
Guidance_and_Counselling.pdf B.Ed. 4th Semester
Atul Kumar Singh
 
Chapter -12, Antibiotics (One Page Notes).pdf
Chapter -12, Antibiotics (One Page Notes).pdfChapter -12, Antibiotics (One Page Notes).pdf
Chapter -12, Antibiotics (One Page Notes).pdf
Kartik Tiwari
 

Dernier (20)

How libraries can support authors with open access requirements for UKRI fund...
How libraries can support authors with open access requirements for UKRI fund...How libraries can support authors with open access requirements for UKRI fund...
How libraries can support authors with open access requirements for UKRI fund...
 
How to Make a Field invisible in Odoo 17
How to Make a Field invisible in Odoo 17How to Make a Field invisible in Odoo 17
How to Make a Field invisible in Odoo 17
 
June 3, 2024 Anti-Semitism Letter Sent to MIT President Kornbluth and MIT Cor...
June 3, 2024 Anti-Semitism Letter Sent to MIT President Kornbluth and MIT Cor...June 3, 2024 Anti-Semitism Letter Sent to MIT President Kornbluth and MIT Cor...
June 3, 2024 Anti-Semitism Letter Sent to MIT President Kornbluth and MIT Cor...
 
Unit 2- Research Aptitude (UGC NET Paper I).pdf
Unit 2- Research Aptitude (UGC NET Paper I).pdfUnit 2- Research Aptitude (UGC NET Paper I).pdf
Unit 2- Research Aptitude (UGC NET Paper I).pdf
 
TESDA TM1 REVIEWER FOR NATIONAL ASSESSMENT WRITTEN AND ORAL QUESTIONS WITH A...
TESDA TM1 REVIEWER  FOR NATIONAL ASSESSMENT WRITTEN AND ORAL QUESTIONS WITH A...TESDA TM1 REVIEWER  FOR NATIONAL ASSESSMENT WRITTEN AND ORAL QUESTIONS WITH A...
TESDA TM1 REVIEWER FOR NATIONAL ASSESSMENT WRITTEN AND ORAL QUESTIONS WITH A...
 
S1-Introduction-Biopesticides in ICM.pptx
S1-Introduction-Biopesticides in ICM.pptxS1-Introduction-Biopesticides in ICM.pptx
S1-Introduction-Biopesticides in ICM.pptx
 
"Protectable subject matters, Protection in biotechnology, Protection of othe...
"Protectable subject matters, Protection in biotechnology, Protection of othe..."Protectable subject matters, Protection in biotechnology, Protection of othe...
"Protectable subject matters, Protection in biotechnology, Protection of othe...
 
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
 
CACJapan - GROUP Presentation 1- Wk 4.pdf
CACJapan - GROUP Presentation 1- Wk 4.pdfCACJapan - GROUP Presentation 1- Wk 4.pdf
CACJapan - GROUP Presentation 1- Wk 4.pdf
 
STRAND 3 HYGIENIC PRACTICES.pptx GRADE 7 CBC
STRAND 3 HYGIENIC PRACTICES.pptx GRADE 7 CBCSTRAND 3 HYGIENIC PRACTICES.pptx GRADE 7 CBC
STRAND 3 HYGIENIC PRACTICES.pptx GRADE 7 CBC
 
Biological Screening of Herbal Drugs in detailed.
Biological Screening of Herbal Drugs in detailed.Biological Screening of Herbal Drugs in detailed.
Biological Screening of Herbal Drugs in detailed.
 
2024.06.01 Introducing a competency framework for languag learning materials ...
2024.06.01 Introducing a competency framework for languag learning materials ...2024.06.01 Introducing a competency framework for languag learning materials ...
2024.06.01 Introducing a competency framework for languag learning materials ...
 
A Survey of Techniques for Maximizing LLM Performance.pptx
A Survey of Techniques for Maximizing LLM Performance.pptxA Survey of Techniques for Maximizing LLM Performance.pptx
A Survey of Techniques for Maximizing LLM Performance.pptx
 
Digital Artifact 2 - Investigating Pavilion Designs
Digital Artifact 2 - Investigating Pavilion DesignsDigital Artifact 2 - Investigating Pavilion Designs
Digital Artifact 2 - Investigating Pavilion Designs
 
The basics of sentences session 5pptx.pptx
The basics of sentences session 5pptx.pptxThe basics of sentences session 5pptx.pptx
The basics of sentences session 5pptx.pptx
 
Model Attribute Check Company Auto Property
Model Attribute  Check Company Auto PropertyModel Attribute  Check Company Auto Property
Model Attribute Check Company Auto Property
 
Language Across the Curriculm LAC B.Ed.
Language Across the  Curriculm LAC B.Ed.Language Across the  Curriculm LAC B.Ed.
Language Across the Curriculm LAC B.Ed.
 
Normal Labour/ Stages of Labour/ Mechanism of Labour
Normal Labour/ Stages of Labour/ Mechanism of LabourNormal Labour/ Stages of Labour/ Mechanism of Labour
Normal Labour/ Stages of Labour/ Mechanism of Labour
 
Guidance_and_Counselling.pdf B.Ed. 4th Semester
Guidance_and_Counselling.pdf B.Ed. 4th SemesterGuidance_and_Counselling.pdf B.Ed. 4th Semester
Guidance_and_Counselling.pdf B.Ed. 4th Semester
 
Chapter -12, Antibiotics (One Page Notes).pdf
Chapter -12, Antibiotics (One Page Notes).pdfChapter -12, Antibiotics (One Page Notes).pdf
Chapter -12, Antibiotics (One Page Notes).pdf
 

PERCEPTION OF SPACE,DEPTH AND DISTANCE.pptx

  • 1. PERCEPTION OF SPACE,DISTANCE AND DEPTH... Becoming aware of something via the senses… Define:  Space  Spatial attribute  2D &3D & how this occurs ???  Depth  Cues:  1.Binocular  2.Monocular Visual field or surface where things move or being placed. 3-Dimensional 2-Dimensional Retinal image -flat formation of image . Perception which is made in mind. Transformation is known as Depth/Distance/Depth Perception. *We not only perceive spatial attributes but also the distance between them.
  • 2. DEPTH PERCEPTION… BINOCULAR CUES… MONOCULAR CUES…  Depend on cues i.e. a stimulus that provides information about what to do/sources of info.  Allowance to perceive depth by both eyes…  Allowance to perceive depth by one eye from both…
  • 3. MONOCULAR CUES/ PSYCHOLOGICAL CUES… 1.Relative size 2.Interposition/Overlapping 3.Linear Perspective 4.Aerial Perspective 5.Light/Shade 6.Relative Height 7.Texture Gradient 8.Motion Parallax
  • 4.  Away small.  Near big.  As it goes far becoming small.  Based on the distance of object with respect to our past and present experience with that object. 1.RELATIVE SIZE  With respect to parallel plane ,if we see from near to farther two objects or things seems to come closer like they are meeting each other at a point. 3.LINEAR PERSPECTIVE  When two objects overlap each other :  The object being overlapped seems far away  The object overlapping seems near 2.INTERPOSITION/OVERLAPPING 4.AERIAL PERSPECTIVE  When the farther view become hazy due to impurities in air like particles of dust and moisture but the nearer view is clear.
  • 5. 5.LIGHT AND SHADE 8.MOTION PARALLAX 7.TEXTURE GRADIENT 6.RELATIVE HEIGHT  Larger objects seems to be nearer and the smaller objects seems to be farther away from the person perceiving the objects.  Sometimes two objects seems similar in size but they r not.