ACTi B57 6MP Video Analytics Indoor Hemispheric Dome Camera

ACTi B57 6MP Indoor Hemispheric Dome Camera with Analytics

The ACTi B57 is a 6MP hemispheric dome designed for indoor 360-degree coverage with on-board video analytics and edge processing. The fixed f1.3mm lens paired with a 1/1.8-inch CMOS sensor delivers full 6MP resolution at 20 fps (3072×2048), with 30 fps available at lower resolutions. The fisheye optics provide a 203.5° horizontal field of view, dewarped and electronic PTZ (ePTZ) view modes, and multiple simultaneous output streams—eliminating the need for multiple fixed cameras in hallways, lobbies, or retail spaces. Built-in 850nm infrared with a 12× LED array reaches 20 meters and enables reliable color and monochrome operation at 0.003 lux without external lighting. WDR processing (130dB) handles mixed-light interiors (near windows, uneven ceiling rigs) without halo artifacts. On-camera Video Motion Detection and People Counting analytics reduce server load and enable local triggering—useful for occupancy counting, dwell-time alerting, or tail-gating detection at entry points. Dual compression (H.264 Baseline/Main/High and MJPEG) supports both bandwidth-efficient 24/7 recording and high-motion forensic playback. Built-in two-way audio (microphone, line-in, line-out) enables remote verification and two-way communication. PoE+ (802.3at Class 3, 60W budget) powers the camera over a single RJ-45 cable with no separate power infrastructure. Operating range −10°C to +50°C suits climate-controlled indoor deployments.

Key Features

• 6MP Hemispheric Sensor: 1/1.8-inch CMOS, 3096×2080 native resolution at 20 fps; dewarped and ePTZ modes eliminate multi-camera installations in confined spaces.
• WDR 130dB: Forensic-grade wide dynamic range handles backlit interiors and uneven ceiling illumination without bloom or loss of shadow detail.
• 850nm IR with 20m Range: Built-in 12× LED array provides reliable monochrome operation and color imaging at 0.003 lux—no external lighting rig required.
• On-Board Analytics: Video Motion Detection and People Counting run at the edge, reducing NVR storage footprint and enabling sub-second rule triggering without server latency.
• PoE+ (802.3at Class 3): Single-cable power and data delivery via standard RJ-45; 60W budget accommodates heater modules on future models.
• Dual Compression: H.264 (Baseline/Main/High) and MJPEG codec support; H.264 reduces bitrate 30-50% vs. MJPEG on static scenes while maintaining high-motion quality.
• ONVIF Profile S, G, T Compliance: Vendor-neutral integration with Milestone XProtect, Axis Camera Station, and third-party NVR platforms; no proprietary lock-in.
• Two-Way Audio: Built-in microphone, line-in, and line-out connectors enable verification, remote communication, and audio-based analytics (future firmware).

The B57's hemispheric design is particularly valuable in retail, hospitality, and warehouse environments where a single camera must cover a large floor area or multi-aisle corridor. The 360° fisheye output can be dewarped on playback (or by an ONVIF-compliant VMS) into rectilinear or panoramic views for forensic review, eliminating the need to reinstall a camera if the coverage angle changes mid-deployment. People Counting runs locally, so you get accurate occupancy data without server-side video analytics licensing or monthly subscriptions—a meaningful TCO win on multi-site deployments.

PoE+ (802.3at Class 3) is the practical standard for this class of camera. A single managed PoE+ switch can supply 16+ B57 units without oversubscription; budget 60W per port and verify your switch model supports IEEE 802.3at delivery. The 1.02 kg form factor and multiple mounting options (wall, pole, pendant, corner, rack) make installation straightforward in dropped-ceiling or surface-mount scenarios. Operating temperature range (−10°C to +50°C) is adequate for climate-controlled indoors; unheated garages or storage areas near exterior doors may require supplementary environmental monitoring.

ONVIF compliance ensures the B57 works with all major VMS platforms—Milestone XProtect, Axis Camera Station, Genetec (via ONVIF bridge), Hikvision iVMS, and open-source platforms like Shinobi or ZoneMinder. H.264 streaming preserves bandwidth efficiency on constrained networks, while ePTZ modes allow forensic investigation of recorded fisheye footage without re-positioning the physical camera. Manual GPS tagging is configurable for multi-location deployments, enabling geographic labeling in a distributed system. The on-board analytics (VMD, People Counting) are non-proprietary: they generate ONVIF-standard metadata events and alarms, so your VMS rule engine can act on detections regardless of platform.

The B57 suits indoor environments where 360° coverage, edge analytics, and low total cost of ownership are priorities. For deployments requiring outdoor weather resistance, thermal imaging, or extreme low-light performance beyond 20m, consider outdoor hemispheric alternatives (e.g., ACTi B96 or equivalent). For applications needing specialized wide-angle fixed cameras without hemispheric distortion, a multi-camera approach or fixed panoramic option may be better. The B57 shines in retail loss-prevention (people counting at exits, tail-gate detection at secure doors), hospitality (lobby occupancy, common-area monitoring), and warehouse cross-aisle surveillance (fewer cameras, lower cabling cost). Sourced direct from the manufacturer or authorized distributors; genuine product with CE Class B and FCC Class B approvals.

Marty Allison

Perspective based on aggregated IP Security Depot and affiliated engineering team experience.

We've deployed the B57 in retail chains, hospitality properties, and warehouse environments where the operational payoff of hemispheric coverage is immediate. The 360° fisheye eliminates the need for two or three fixed-angle cameras in hallways and aisles, and the dewarping engine in most modern VMS platforms means forensic reviewers can pull rectangular clips from recorded hemispheric footage without leaving the playback interface. The real differentiator, though, is the on-board People Counting and Video Motion Detection running at the edge. In multi-site deployments we've managed, that on-camera analytics saved roughly 40-50% of NVR storage footprint compared to server-side analytics licensing—no per-camera subscription fees, no edge-analytics appliance capex. The camera itself is honest: it does not claim to be a thermal unit, does not have motorized pan-tilt, and does not offer 100m IR range. The 20m 850nm LED array is genuinely useful indoors and in covered entryways, but it hits its limits in large open warehouses or exterior covered loading docks—if you need farther IR reach, you're looking at a warmer LED design (e.g., 940nm) or a dedicated thermal unit. WDR at 130dB handles typical mixed-light indoor scenes well; we've seen it preserve detail in lobbies with both skylights and fluorescent ceiling rigs without the over-bright or over-dark crushing you'd get from a simpler exposure algorithm.

Technical Highlights:

• 6MP @ 20 fps (3072×2048): Full resolution capture at broadcast framerate; drops to 30 fps at VGA/SVGA for bandwidth-constrained feeds. Means you can do forensic zoom-in on recorded hemispheric footage without losing readable detail on faces or license plates in typical retail lighting.
• 130dB WDR: Forensic-grade dynamic range without visible halo artifacts. In practice, handles interiors lit by a mix of north-facing windows and ceiling fixtures—no need for external lighting augmentation or exposure compensation tricks.
• 850nm LED Array, 20m Range: Standard indoor IR, not extreme-range. Sufficient for 20–30 feet of coverage; beyond that you lose color saturation and need monochrome mode. Does not require external lighting rigs, eliminating maintenance and power headaches on ceiling-mounted installations.
• PoE+ (802.3at Class 3, 60W): Single cable from a managed switch; no separate DC power runs. Budget 60W per port on your switch. Standard 802.3at injector or PoE+ switch port can field this all day.
• On-Board People Counting & VMD: Analytics run locally, metadata streamed to VMS. No server-side licensing, no per-camera monthly fees. Directly triggers occupancy alerts, tail-gate rules, or dwell-time reporting without latency.
• ONVIF Profile S/G/T Compliance: Works with Milestone, Axis Camera Station, Genetec (via ONVIF bridge), and open-source platforms. No vendor lock-in; you can swap VMS platforms without replacing cameras.

Deployment Considerations:

• Hemispheric fisheye footage requires dewarping in post-production or real-time by the VMS—if your platform does not natively support ONVIF fisheye dewarping, playback and forensic review become tedious. Verify your VMS vendor supports equirectangular or PTZ dewarping before committing.
• ePTZ mode is electronic cropping, not optical zoom. Image sharpness degrades at 8–10× crop; recommend staying below 4–5× magnification for readable forensic detail (faces, badges, license plates).
• IR range is 20m in ideal conditions (clean window, no obstructions). In practice, usable monochrome range is 15–18 meters; color saturation drops beyond 12 meters. Plan lighting accordingly in large open spaces.
• Operating temperature range (−10°C to +50°C) is suitable for climate-controlled interiors. Unheated/uncooled loading docks, garages, or exterior covered areas may exceed the upper limit in summer; consider supplementary environmental control or thermal monitoring if ambient approaches 45°C+.
• Audio inputs (mic, line-in, line-out) are not hot-swappable; plan cabling runs during install. Mic-in is sensitive to electromagnetic noise from power cables—route audio cabling separately from AC and PoE runs to avoid hum.

The B57 is the right choice for integrators and end-users building retail, hospitality, and warehouse deployments where 360° coverage, on-board analytics, and low total cost of ownership drive the ROI calculation. If you're replacing three fixed-angle cameras with one B57 in a hallway or aisle, the savings on cabling, NVR ports, and analytics licensing add up fast. For more information on ACTi's full hemispheric and analytics camera range, visit the ACTi catalog.