Camera Coverage and throw distance

I’ve tested the coverage of my camera and throw distance.

1. I have projected 4m x 3m image( exactly same size of my real project) on the wall.
2. Check the  throw distance when the camera  is able to grab the 4m x 3m image on the screen to detect the audiences’ movement.

I’ve tested like this. (image below)

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These are the Results.

1. 42.25° standard lens : 4.5m throw distance required to grab the 4m x 3m( screen – camera )

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1. 80.95°wide lens : 2.2m  throw distance required to grab the 4m x 3m( screen – camera ),

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Using a Infrared illumination kit for the project.

I’m going to talk about how to put Infrared Illumination kit together. I have ordered Infrared illumination kit here. However, I still needed to put some more suppliers( such as wires and connectors for actually making it runs.) When I’ve received Infrared Illumination, it looked like this. There was only Infrared illumination. It means you need to purchase something more like wires, power supplier, connectors, etc.)

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When you take a look at this carefully, you can fine this “+”, “-” holes for connection with power supplier.

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I had to put the cables together and soldered them like this

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The other side of cables are needed to be connected to power supplier connector
Left : power supplier connector / Right : power supplier

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When you take the power supplier connecter apart, you can see slots for connecting cables from IR illumination.

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Here is the way you are able to figure out which part is ‘+’ or ‘-’.
When you carefully see on the top of the Power supplier, you can see the image like below.
You should carefully check the “+” and “-”. The picture means outer part of connector is ‘+’terminal and inner part is ‘-’.

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I soldered them like this according to ‘+’, ‘-’ (whit wire comes from “+” and black wire comes from “-” on the IR Illumination.

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This is completed Infrared illumination kit for conntectig to power supplier.

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Now you can see below the IR illuminations in the real project. (3 red IR lights )img_0149.jpgimg_0156.jpg

Although you’ve connect IR light to power supplier you can not see anything with your eyes since humans eyes can not see IR light. You can see the light like the image above only in the case when you see the light through the camera.

A Camera for the Motion Detection

Fire-i™ Digital Board Camera


Fire-i™ Digital Board Camera is a board-level fully operational FireWire 400Mbps camera, complying with IIDC specification for industrial uncompressed VGA picture acquisition.
Built around Texas Instruments 1394 digital camera chipset and Sony® Wfine CCD sensors, it is a high quality subassembly for OEM use.

Fire-i™ Digital Board Camera offers:

  • 400Mbps 1394a, IIDC v1.04 DCAM spec. compliance
  • Uncompressed VGA picture up to 30 fps
  • Square pixels, ¼” CCD
  • Full frame electronic shutter with progressive scanning
  • On-board 6 pin 1394a port and power jack input 8-30V DC
  • Second 6 pin 1394a port on removable daughter board
  • Standard lens base M12x0.5 (lens not included)
  • Small size and very low power consumption
  • Embedded hardware license for Unibrain’s
    Fire-i™ Software & SDK.

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The Camera with spare lens M12X0.5mm WIDE, focal=2.11mm NO IR filter coating
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3D Fluid Effects

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The screen shot of the code

Downloda MAX/MSP “3d_watermxt.zip”

This really great max+jitter code for my project. It allow me to create 3D Interface with fluid effect.

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Projector

InFocus LP850LP850

My project is a little bit different from others since my projector is gonna be installed on the celing instead of the wall. It means only I can use shorter Thorw Distance compared to others. Most the height of the celing of gallary space is around 3m~4m. In this reason I needed to research the projector which is brighter than typical one , and has shorter throw distance. Eventyally, I ‘ve found Infocus LP 850 with InFocus Long Throw Zoom Lens LENS-024.

Here is the Links about theis projector.
Projection Calculator

InFocus Website

InFocus Long Throw Zoom Lens LENS-024

Long Throw Zoom Lens For LP840, LP850, LP860

Long throw zoom lens; wide 2.2:1 (throw distance:image width); tele 4.1:1 (throw distance:image width).

When I use LP850+ Lens-024, I can get 4mx3m image on the floor in 3.2m throw distance. It is at least two times shorter than other models.

  • Model : InFocus LP850 (more information)
  • Original Price is $4,499 ( I ‘ve purchased on the Craglist by $800)
  • Mint condition, more than 2000 hours lamp life remained.img_0061.jpgimg_0071.jpgimg_0073.jpgSetting on the desk for the first test.img_0063.jpgimg_0064.jpgVideo test projected on the wall in my roomI love it!! Brighter than cheap projector and short throw distance.perfectly suitable for my project!! And Cheap price!!

White Sand Test

For my Thesis Project, had to go to Staten Island since it is only place where I can purchase the White Sand in New York. Here is the informations and my projector test videos.

Sand and Stone mix for sale
  • Sand & Stone Mix Type: masonry sand mixed with 5/8 stone
  • Sand & Stone Mix Color: mixture of beige, tan, blue stone
  • Sand & Stone mix Uses: Sand & Stone Mix may be used to mix with concrete for fence posts, patios.
Bank Run Sand for sale
  • Bank Run Sand Type: fine-coarse sand
  • Bank Run Sand Color: mixture of beige, tan, gold
  • Bank Run Sand Uses: Bank Run Sand may be used for back filling trenches or as a Fill.
mason sand for sale
  • Mason Sand Type: fine sand
  • Mason Sand Color: mixture of beige, tan, grey, brown, white
  • Mason Sand Uses: Mason Sand may be used to mix with concrete & mortor for laying blocks, bricks & stone.
white mason sand for sale
  • White Mason Sand Type: fine sand
  • White Mason Sand Color: mixture of white, tan, grey,
  • White Mason Sand Uses: White Mason Sand may be used to mix with concrete & mortor for laying white blocks & bricks to create a white mortar line.
  • This is the right WHITE SAND FOR MYPROJECT

The test result was perfectly matched with my expectation. As you watched the video. It looks like more than real water!!

The Information of Sand Store in NY 

A Tranchina- 1580 Hylan Blvd., S.I., N.Y 10305 Tel # (718-351-0768 )
Construction Materials Supplied; Belden Brick, Cambridge Pavers, Brick, Block, Gravel, Sand, Pavers, Precast Concrete Products, Ready Mixed Concrete, Glass Block

A Tranchina- 22 Zebra place, S.I., N.Y 10309 Tel # (718-948-1988)
Construction Materials Supplied

Special Thanks to Kethleen Mahoney who gave me a ride for picking up the white sand!!