Cognition of spatial separationCognition of spatial separationin the interiorin the interior

Comparative experiments using computer graphics and full-scale

model

Naoyuki Oi

(Faculty of Design, Kyushu Univ.)

IntroductionIntroduction

Four spatial concepts for connected space

1) Inui et al.: concept of SPACIOUSNESS for rooms with a window

2) Subjective UNIT of space

3) CONTINUITY of two spaces

4) SPATIAL SEPARATION

Spaciousness, UnitSpaciousness, UnitContinuity and SeparationContinuity and Separation

Simulation techniquesSimulation techniques

Full-scale modelsComputer graphics (Still images)

– Easy to prepare many settings but depth perception etc. could be different

– The same settings as full-scale models are used for the comparative study

Simulation techniquesSimulation techniques

Simulated spaceSimulated space

ObjectivesObjectives

Explore separation concept in the roomCompare full-scale models and CGs

Three experimentsThree experiments

Experiment 1: Computer Graphics. Each subject estimates the projected images on the screen from the specified seating position.

Experiment 2: Full-scale Models. Each subject estimates the real space of full-scale models from the specified seating position.

Experiment 3: Full-scale Models. Each subject estimates the real space of full-scale models while walking along the instructed route in the space.

MethodsMethods

Magnitude Estimation method for spatial separation

Seven rank grading for the impression on – “easy (or hard) to go through”– “easy (or hard) to find the situation of the other

side”– “two spaces look similar (or not)”

Subjects: 20 students (10 female, 10 male)

ResultsResults

The similar tendency among subjects is found, that is spatial separation is a common feeling.

Short walls from both sides create less separation than the other type of walls.

Experiment 3 shows similar results, except the impression of the easiness of movement for 1110mm low partition.

ResultsResults

Height of partition wall and separation

ResultsResults

Wall type and separation

ConclusionConclusion

The spatial separation concept has large possibility in the room design

Still images of Computer Graphics for the cognition of spatial separation is valid so far

The further work should be needed, as the eye point for CG experiment has some influence

AcknowledgmentAcknowledgment

This study was supported in part by Grant-in-Aid for the 21st Century

COE Program