Camera and input material

How to choose a camera and prepare footage

The key camera, video file and recording-name parameters that help produce a correct traffic measurement in AITracker.

Recording parametersFile formatsCamera models

Material for analysis

Technical recording parameters

When choosing a camera or export settings, start with six parameters. Recommended values provide more detail and smoother object tracking.

Resolution

1280 × 720 px or higherRecommended HD quality · minimum 640 × 480 px

Frame rate

20 fps recommendedMinimum 15 fps; more frames make object tracking easier

File format

MP4, AVI, DAV, H.265…AITracker also recognises MKV, MOV, WMV, FLV, WebM, MPEG/MPG, TS, MTS/M2TS, VOB, MXF, HEVC, H.264, H.265 and many other formats used by cameras

Video codec

MJPEG, H.264, H.265, MPEG…Decoding uses GStreamer, FFmpeg and OpenCV, so codec support is much broader than the examples above and also covers CCTV recorder footage

Recording length

At least 90 secondsLonger footage enables a more complete measurement result

Image scanning

Progressive scanInterlaced video is not supported

Note: with a variable frame rate, jumping to a selected point in the video may be inaccurate. A constant frame rate provides the most convenient result verification.

Good to know: we continue to expand support for video formats and encodings. If you have unusual footage, test it in the free AITracker application.

Recording time

The file name builds the measurement timeline

AITracker reads the start date and time from the file name and determines subsequent moments from the frame number. This assigns records and reports to the correct measurement period.

File namestart date and time

Frame numberobject time in the video

Resultrecord on the timeline

Note: the system does not read a clock visible in the recording. A correctly formatted file name is essential.

Examples of supported names

12.05.00-12.10.00[R][0@0][0]02-OMAZ_2021-05-06_2355_0000R51_ch1_Main_20210408100000_20210408110000(1)063732_100_044419723_0300.h264SCPR_12002_BOCHNIA_cam2_20231213001158_20231213001751_97842

Selected camera models

We know or encounter the following models in practice. The list helps narrow down the choice, but the camera's suitability is always determined by the frame, mounting height, lighting and the expected type of measurement.

Models known or used in practice

Ozikam-C12-Z5X

Image: 5 Mpix (2560 × 1920)
Lens and frame: 3.6 mm, viewing angle 90°
Connectivity and recording: WiFi, Ethernet, PoE, microSD up to 128 GB, H.265/H.264
Night and audio: 9 IR LEDs, two-way audio

Dahua ITC237-PW6M-IRLZF1050-B

Image: 1080p (1920 × 1080) at 30 fps, 1/1.8″ Sony GS-CMOS sensor
Lens: Motorized 10–50 mm
Measuring tables: LPR up to 80 km/h
Field work: 6 IR diodes, IP67 housing

Axis P1448-LE

Image: 4K Ultra HD (3840 × 2160) at 25/30 fps, 1/2.5″ CMOS sensor
Lens: 2.8–9.8 mm with P-Iris
Image quality: Forensic WDR, Lightfinder, Zipstream, OptimizedIR, 0.18 lux color
Immunity: IP66/IP67 and IK10

Hanwha Techwin XNV-8082R

Image: 6 Mpix (3328 × 1872) at 30 fps
Lens: Motorized 2.8–8.4 mm (3×)
Night and contrast: IR up to 40 m, extremeWDR 120 dB, ICR day/night
Video analysis: Motion, tamper and face detection

Bosch NIN-50022-A3 FLEXIDOME IP Indoor 5000 HD

Image: 2 Mpix (1952 × 1092)
Lens: Auto-varifocal 3–10 mm
Image quality: WDR 76 dB, IR 0 lux
Power and compression: PoE IEEE 802.3af, H.264/M-JPEG

Archival models

The models remain listed as reference material but are no longer available for current sale.

DS-2CD4A26FWD-IZHS/P

Withdrawn from sale

Image: 2 Mpix ALPR Ultra-Low Light, 1/1.8″ Progressive Scan CMOS matrix
Lens: Motorized 8–32 mm, auto-iris
Processing: WDR 120 dB, defog, 3D DNR, IR
Power supply: PoE

DS-2CD2T47G2-L

Withdrawn from sale

Image: 4 Mpix ColorVu, 1/1.8″ Progressive Scan CMOS matrix
Recording: Continuous color 24/7, H.265+ compression
Contrast: WDR 130 dB
Immunity: IP67

BCS-TIP5201IR-Ai

Withdrawn from sale

Image: 2 Mpix (1920 × 1080), 1/2.8″ Sony STARVIS CMOS matrix
Lens and night: 3.6 mm, WDR 120 dB, IR up to 80 m
Features: Motion and face detection, privacy masks, accounting, audio I/O and alarm I/O
Resistance and save: IP67, IK10, microSD up to 256 GB

BCS-TIP4501IR-E-Ai

Withdrawn from sale

Image: 5 Mpix (2592 × 1944), 1/2.7″ CMOS matrix
Lens and night: 2.8 mm, WDR 120 dB, IR up to 50 m
Interfaces and recording: Audio I/O, alarm I/O, microSD up to 256 GB
Immunity: IP67

For more details on camera installation, see the documentation https://wiki.aisp.pl/aitrackergui/pl/hardware/

Need help with your own material?

Download AITracker or go to the technical documentation to prepare your recording and measurement configuration.

Download AITracker Documentation