Stereo and low-light cameras: define a useful prototype test
Before testing a prototype, state the decision its images must support. Viewing, recognition, matching and measurement require different evidence. Define test conditions that let the team identify what meets the requirements and what needs adjustment.
1. Define the task and scene
List the subject, distance range, motion and most difficult lighting conditions. Define an expected result for each scene, such as visible detail in a region, paired images suitable for matching, or original data accepted by the existing processing pipeline.
- Record: scene, distance, motion, lighting, region of interest and evaluation method.
2. Keep comparisons consistent
Record optics, field of view, output resolution and frame rate. Use the same scene and capture rules when comparing prototypes. Record automatic exposure, gain and processing settings, and label any differences in conditions next to the samples.
3. Keep paired images and stereo configuration
Preserve left/right pairing, capture-time information and sample identifiers. Calibration describes camera intrinsics and relative pose; files should match the mounting and capture configuration. Agree who performs calibration, who supplies processing and how mechanical changes will be reviewed.
- Record: baseline, optics, mode, synchronization method and calibration file version.
4. Evaluate detail as well as brightness
Longer exposure can add motion blur, and gain amplifies signal and noise. Include representative motion in low-light tests and retain exposure, gain, frame rate and processing settings. Evaluate whether detail, noise, blur or highlights affect the task.
- If recording illuminance, include the measurement position, light source and method.
5. Finish with evidence and records
Save the sample, configuration and evaluation reason for each result. List reproducible issues and the conditions to change in the next round. A best-case sample alone does not describe performance at every distance, light level or motion condition.
- Suggested record: sample ID, scene ID, configuration, original file, result and open issues.
Keep the configuration and test records
State the conditions covered by the report. Accuracy, minimum illumination and other performance figures should correspond to defined tests that have been completed.