Calculating Image and Object Distance for Room Projection using D and VP Points

  • Thread starter Thread starter InSpiRatioNy
  • Start date Start date
  • Tags Tags
    Graph
Click For Summary

Homework Help Overview

The discussion revolves around calculating image and object distances in the context of projecting an image onto a wall in a room. Participants are exploring the relationship between 2D representations and 3D spatial dimensions, particularly in relation to camera optics and projection techniques.

Discussion Character

  • Exploratory, Conceptual clarification, Problem interpretation

Approaches and Questions Raised

  • Participants express uncertainty about transitioning from 2D to 3D, questioning the feasibility of such a conversion. There are discussions about the role of magnification and focal length in the context of the problem. Some participants are attempting to graph the situation while others are seeking clarification on the relevance of specific points in the projection process.

Discussion Status

The conversation is ongoing, with participants sharing their thoughts and grappling with the complexities of the problem. Some have made attempts to graph the situation and calculate distances, while others are still seeking foundational insights. No consensus has been reached, but various lines of reasoning are being explored.

Contextual Notes

Participants mention a deadline for the assignment, indicating a time constraint. There is also a reference to the potential confusion arising from the relationship between 2D and 3D elements in the problem setup.

InSpiRatioNy
Messages
37
Reaction score
0
How to graph THIS? [URGENT due tomorrow]

Edit: I have to post another thread, sorry, it's getting too messy :(
 
Last edited:
Physics news on Phys.org


*sniff* no ideas anyone? I don't mind what you think, just give me something to think about! hehe

Thanks
 


Obviously images are 2D objects and they want you to "find the length of the room" and things like that which are in 3D. I think from the mathematical point of view it is impossible to go from 2D to 3D. It's like doing reverse of 3D mapping. Maybe as an artist you can visualise and guess what it is.
That's all I can think of. Study 3D mapping further, maybe there is a way.
 


I cracked how to graph it, and yeah they wanted the length of the room which got me stuck. They say from the magnification i calulated earily and assuming the camera used a lens of focal length f with the image projected on the back wall of the room (and the object is on the far wall) and from the plot I made for the D and VP points.

I don't really see the point of having the D and VP points to help, they're just basically lines that intersect in middle of the room and shoots out of the graph! But I need the image distance/objet distance before I can do anything.

Thanks for your thoughts!
 

Similar threads

Displacement of virtual image problem
  • · Replies 1 ·
Replies
1
Views
2K
High School Modelling object w/ functions, how to find volume loss from indents?
  • · Replies 9 ·
Replies
9
Views
2K
Confusion Calculating Young's Modulus
  • · Replies 5 ·
Replies
5
Views
2K
Triple delta potential probability of state transition
  • · Replies 2 ·
Replies
2
Views
3K
Using Method of Imaging for two point charges between Parallel Plate Capacitors
  • · Replies 1 ·
Replies
1
Views
3K
Please: Find the angles, magnification, total length of the roometc. of paint-
  • · Replies 3 ·
Replies
3
Views
3K
Lorentz Transformation For Moving Particles
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Using simple lenses to image AFM Probes
  • · Replies 10 ·
Replies
10
Views
3K
Potential from point charge at distance ##l## from conducting sphere
  • · Replies 3 ·
Replies
3
Views
3K
Calculate Distance Traveled: Instantaneous vs. Average Velocity
  • · Replies 5 ·
Replies
5
Views
2K