tb_sensor_capture — 2D typed op

Data kinds: rgbimagergbimage

Call: fullseye.apply(img, "tb_sensor_capture", a=0.5, b=0.5) (the 2-D model is one image plus two scalar knobs a,b∈[0,1])

tb_sensor_capture: input → output

*The figure is the actual output on a synthetic 128×128 input. Left: input, right: output. Point clouds are drawn as a top-down scatter (brightness = z), 1-D series as a line plot, volumes as the maximum-intensity projection along z, videos as the middle frame, complex images as magnitude; return values that are not pictures are shown as the values themselves.*

Sweeping knob a (0.1 / 0.5 / 0.9, the other knob at its default):

tb_sensor_capture: knob a sweep (docs site)

Sweeping knob b (0.1 / 0.5 / 0.9, the other knob at its default):

tb_sensor_capture: knob b sweep (docs site)

Stages (the ops that come before → this op, left to right):

tb_sensor_capture: stages (docs site)

On other images (synthetic scene / photo / coins. Top row: inputs, bottom row: their outputs. Knobs at default):

tb_sensor_capture: other inputs (docs site)

Usage

Radiance → real-sensor output (shot noise, read noise, saturation, quantisation).

> The detailed description below is the original text — the summary and the headings are translated.

光子数 = radiance · exposure_ms · gain_e_per_unit / 1000 を平均とする Poisson。

そこへ読み出し雑音(正規)を足し、`full_well_e で**飽和**させ、bit_depth`

で量子化する。飽和は clip であって折り返さない(白飛びは白のまま)。

返り値は 0..2^bit_depth−1 の整数配列。`seed` を固定すれば決定的。

2-D 進化レジストリへ橋渡しした optics の op `sensor_capture。実装は同じで、呼び出し規約だけ op(v, a, b) に合わせてある。aexposure_ms(既定 10)、bgain_e_per_unit`(既定 50000)を振る。

References (sample data, literature)

• Sample-data catalog (download URLs / licences) — 2-D uses skimage.data (BSD/public domain) plus synthetic images; 3-D lists download URLs for real data sources (Stanford, PDS, …).

• Operator provenance and references — the sources of the research/methods this op family came from.

Try it in Studio

The program below has been verified to run (same input as the figure). In Studio's help this block becomes buttons that load and run it on the spot.

img_to_rgb 0.50 0.50
tb_sensor_capture 0.50 0.50

▸ Load this pipeline  ·  Load & run

Runnable examples (verified samples that actually call this op)

The examples below call the underlying ledger op sensor_capture. This bridge op is the same implementation adapted to the fn(v, a, b) convention, so the behaviour carries over unchanged (only the call form differs).

vision_layout_from_catalogpy -3.11 examples/vision_layout_from_catalog.py

Ops the type connects to (they accept rgbimage as input)

identity · tb_wetness · tb_specular_diffuse_split · tb_specular_coefficient_map · tb_specular_free_transform · tb_rgb_to_quaternion

Same category (typed)

tb_points_to_voxel · tb_estimate_point_normals · tb_iss_keypoints · tb_project_points · tb_render_point_depth · tb_statistical_outlier_removal · tb_radius_outlier_removal · tb_voxel_grid_downsample


*Provenance: ops.py — 2D operator registry. This per-op note is generated by tools/opdocs.py md (do not hand-edit).*

© 2026 Kazufumi Furuse — Fullseye operator documentation. Licensed under Apache-2.0.