Journal
A record of engineering work in computer vision, numerical methods, geometry, and scientific computing.
Articles are developed arguments. Notebook entries preserve work in progress.
Recent publications
6 records- Article
The geometry of image formation
A practical derivation of the pinhole camera model, its coordinate systems, and the assumptions hidden inside a projection matrix.
- Notebook
Normalize camera coordinates before blaming calibration
A pixel-space residual looked like calibration drift, but the comparison mixed normalized and distorted coordinates.
- Article
A benchmark is an experimental record
GPU timing numbers become useful only when hardware, synchronization, sampling, and raw observations remain attached to the result.
- Notebook
GPU synchronization changed the ranking
Adding synchronization reversed an apparent latency advantage between two inference paths.
- Notebook
Half precision made the solver look converged
A residual plateau was mistaken for convergence after reduced precision erased the update direction.
- Notebook
Reading a method paper backwards
Starting with evaluation details and failure cases can expose a paper's actual contribution faster than reading from the abstract forward.