OBSERVATION CHAMBER / MVP

Projection Scanner

Scan projections, stack a sinogram, and rebuild a rough image.

radon Operational

PROJECTION SCANNER

Scan a phantom from many angles, stack the shadows into a sinogram, and watch a visual backprojection model recover the hidden structure.

OBSERVING

First observation Use SCAN to add projection angles, SINO to read the sinogram, and COMPARE to contrast plain and filtered backprojection.

PHANTOM / SINOGRAM / BACKPROJECTION

angles 24 / samples 72

OBS-000 / SCAN / 00:00

SYSTEM NOTE

Shadows can remember an interior.

This chamber is a visual approximation of projection data, sinogram accumulation, and backprojection. It is not a clinical CT tool or a rigorous reconstruction solver.

OBSERVATION POINTS

Projection, sinogram, reconstruction.

SCAN records one more angle of line-integral data.
SINO shows the accumulated projection rows as a sinogram.
RECON smears projections back into the image plane so the phantom begins to reappear.
FILTERED and COMPARE show why edge-weighted projection data can recover sharper boundaries.

OPERATION PANEL

PHANTOM

OBSERVATION LENS

ANGLES24

SAMPLES72

CURRENT ANGLE0

PROJECTIONS0

NOISE0.00

RECONOFF

AUTOOFF

LENSSCAN

Angles 24 Samples 72 Contrast 0.72 Noise 0.00

CHAMBER STATUS

SYSTEM: ONLINE
MODE: PROJECTION SCANNER
SIGNAL: PROJECTING

Use SCAN to collect projection data into the sinogram.
Compare SINO, RECON, FILTERED, and COMPARE views to read projection and reconstruction behavior.
This is a visual approximation, not a clinical CT system or rigorous reconstruction solver.

SYSTEM NOTE

R_f(theta, s) = integral f(x, y) delta(s - x cos theta - y sin theta) dx dy. The chamber reads projections as line integrals, stacks them into a sinogram, then visualizes simple and filtered backprojection as observation models.

OBSERVATION GUIDE

Touchpoints for Observation

Observe how many one-dimensional shadows can carry information about a hidden two-dimensional phantom.

Use SCAN to collect projection rows, SINO to read the sinogram, RECON to smear shadows back into the plane, and FILTERED or COMPARE to see the edge-weighted reconstruction cue.
Angles increase the number of projection directions.
Samples increase the resolution along each detector line.
Noise makes the sinogram rougher, which makes the reconstruction less certain.

This is a visual approximation of Radon-transform reconstruction. It is not a clinical CT tool and not a rigorous numerical reconstruction solver.

Runs inside the browser with no upload and no registration.

OBSERVATION POLICY

This observation LAB runs in your browser. It does not upload images, pointer traces, or input.

Route

This chamber belongs to Shape & Space.

GEOMETRY Back to Shape & Space Route.