Monday, May 1, 2023

Project Title

INTERACTIVE FLOOR PROJECTION SYSTEM

Monday, May 1, 2023

Presented By: Mafaz Ahmed

Monday, May 1, 2023

REVIEW:

The purpose of this project was to make an interactive floor. We used the projector for projection on the floor on a specific area . When any object will entered in projected area then floor will interact virtually .Floor is fully designed with our desired type of animation. Designed like produce waves in water, spreading leaves or flowers etc.

Monday, May 1, 2023

Kinect

Laptop

Simple Block Diagram

Projector

Monday, May 1, 2023

Software Installation for Kinect Sensor

Kinect for studio v1.8.0

Developer Toolkit for SDK v1.8.0

Drivers installation of Kinect.

Sensor Interfacing with computer

In default mode:Minimum range: 80 cmMaximum range: 400 cm

In near mode:Minimum range: 40 cmMaximum range: 300 cm

For the depth camera, we have either of the following resolutions:80x60320x240640x480

LimitationsRange and Resolution of Depth Sensor

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Software Required and Algorithm Development

1.Visual Studio 2010 or latest.

2.Opencv2.4.1 Library for Image Processing.

3.OpenGL for animation Design.

Main Goal

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Sensor

Interaction of animation

Object detection

Enabling video stream

Finding Place of object

Projector

LAPTOP

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Flow Chart

Reference image , Real time frame

Result=(Reference image - Real time frame)

Obtaining Depth Image

Applying filter on Resultant image

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Asteroids (Petals)

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Creating Asteroids (Petals)OpenGL is used for creating asteroids. Set the coordinates 640x480 and create a window. Set numOfAsteroids = 1000. Set up Asteroids to place the petal randomly in the these

coordinates using void setUpAsteroidCoords() and with random angles.

Check if given petals are contained within the coordinate system bool isInBounds(float x, float y).

Draw petal with different colours and same dimension(x,y,z) in 3D using void drawAsteroid().

Then Display.

Monday, May 1, 2023

Bolb DetectionA Blob is a group of connected pixels in an image that

share some common property.OpenCV provides a convenient way to detect blobs and

filter them based on different characteristics.

How does Blob detection works ? ThresholdingGrouping MergingCentre & Radius Calculation

Monday, May 1, 2023

Filtering Blobs by Color, Size and Shape The parameters for SimpleBlobDetector can be set to filter the type of blobs we want.By Colour Set filterByColor=1, then set blodColor=0 for darker blobs and blobColor = 255 for lighter blobs.By Size Set filterByArea = 1, then select minArea and MaxArea.By Shape Now shape has three different parameters.• Circularity This just measures how close to a circle the blob. To filter by circularity, set filterByCircularity = 1. Then set appropriate values for minCircularity and maxCircularity.

For circle, circularity is 1. For Square, circularity is 0.785

Monday, May 1, 2023

Filtering Blobs by Color, Size and Shape• Convexity Convexity is defined as the (Area of the Blob / Area of it’s convex hull). Now, Convex Hull of a shape is the tightest convex shape that completely encloses the shape.

Set filterByConvexity = 1

• Inertia Ratio To filter by inertia ratio, set filterByInertia = 1, and,

set 0 ≤ minInertiaRatio ≤ 1

Monday, May 1, 2023

Filtering Blobs by Color, Size and Shape

Monday, May 1, 2023

Interaction with Blobs(Object) Movement of petals will according to the location of blobs. We know the center of blobs. If blobs appear in the frame, then the petals should moves in the

random directions.

How It is done First find the distance between each petal with respect to blob. Set the threshold value to 100. If the distance is less than 100 than moves the petal in random direction.

Restoring Initial Position of Moved Petal At first we have stored the coordinates of each petal in array. Apply algorithm, which will continuously measure the distance. If distance is more than threshold than move the petal to initial position.

Monday, May 1, 2023

The EndAny Questions