| HD surveillance camera design runs homespun Linux |
Jun. 23, 2008
 Marseilles, France-based Nexvision has announced a network IP (Internet protocol) video camera design that incorporates the Texas Instruments (TI) DaVinci TMS320DM6467 processor. The Linux-based CamHD hardware/software reference design is equipped with an Altera Cyclone III FPGA (field-programmable gate array), and boasts a claimed 1080P HD resolution.
(Click for larger view of the CamHD reference design)
The Nexvision CamHD offers 30 frames per second (fps) HD video using the H264-MP codec, claims Nexvision. It is said to support either full 1080P (2 megapixels at 30fps) or X-HD (5 megapixels at 12fps, or 8 megapixels at 7fps). The CamHD also supports HDMI output and Power-over-Ethernet (PoE) operation.
Announced in December, TI's media-savvy TMS320DM6467 system-on-chip (SoC) combines a 297MHz ARM9 core with a 600MHz C64+ digital signal processor (DSP). The single-chip, 90nm-process SoC tunes core DaVinci DSP functions to the task of HD transcoding, says TI. For example, it can translate between video codecs, bit rates, and resolutions, as video is moved between different devices on home media networks, TI claims.
TI DM6467 block diagram
(Click to enlarge)
The on-board Altera Cyclone III FPGA is equipped with two DDR2 SDRAM banks. The FPGA is dedicated to 3D video enhancement and a picture noise reduction algorithm that is said to incorporate Nexvision IP (intellectual property).
The reference design offers a 110 megapixels per second processing pipeline, 12-bit color exposition, and 3D temporal filtering and contrast enhancement, says Nexvision. Other features include touted support for motion JPEG, multiple exposure blending, and "super resolution over multiple video sensor acquisition." The CamHD provides full-duplex audio, and is said to offer support for both immersive and partial views.
Simplified block diagram of CamHD
(Click to enlarge)
The DM6467 is available with a development board and software stack based on MontaVista Linux, but Nexvision appears to use a homegrown Linux distribution instead. The CamHD comes with an onboard streaming server, as well as an optional onboard video analysis framework for automated video surveillance. The framework is said to support motion detection, fire detection, traffic surveillance, automatic number plate recognition (ANPR), intelligent behavior recognition, and other surveillance tasks.
The CamHD ships with remote management software that is said to be compatible with any H264 RTP/RTSP compliant client, including Nexvision's own NexRMC (Nexvision Remote Media Center) software. NexRMC supports CamHD-specific features such as X-HDTM resolution, sensor monitoring, firewall pass-through, and video content search, says the company.
Hardware specs for the CamHD include:- Processor -- TI DaVinciTMS320DM6467 SoC
- FPGA -- Altera Cyclone III
- Memory -- 128MB DDR2 SDRAM (up to 256MB); 16MB NOR flash (upgradeable to 64MB)
- Ethernet -- 1 x gigabit Ethernet
- WiFi -- 802.11n (optional)
- USB -- 1 x USB 2.0
- Other I/O:
- RS232 (RX/TX) plus RS485 (half-duplex)
- I2C and SPI bus
- RS232/JTAG
- 2 x opto-coupled input
- 2 x general purposes on/off switch
- 1 x switch button
- HDMI 1.3/DVI 1.0 compliant with 19-pin connector
- Audio -- 3W speaker; Line Out; microphone; stereo Line In
- CMOS image sensor -- progressive scan (color) with 2, 3, 5, or 10 megapixels and 1V/Lux-sec sensitivity; optional dual sensor with lower resolution and ultra high sensitivity, or monochrome sensor
- Lens -- 60- to 185-degree field of view with C/CS or M12xP0.5mm thread diameter
- Other features -- web-based remote management, configuration, and viewer application; third-party accessible video analysis framework
- Power -- 12VDC up to 40VDC (support for 24VAC); 30W (20W for PowerLED lighting); Power over Ethernet Plus (802.3af/pre-802.3at)
- Dimensions -- 3.7 x 2.4 x 1.6 inches (93 x 60 x 40 mm)
- Operating temperature -- 32 to 122 degrees F (0 to 50 degrees C)
- Operating system -- homegrown Linux 2.6; U-boot; TFTP image downloading to NOR flash; Glibc/busybox; multiple-path video processing pipeline (GStreamer-based)
Nexvision's Nexdome Dragonfly
(Click for details) |
Availability
Nexvision did not provide any details on the pricing or availability of the CamHD reference design.
Two years ago, Nexvision announced a network video security camera prototype called the Nexdome Dragonfly that was based on TI's DM644x-series DaVinci SoCs.
Related Stories:
(Click here for further information)
|
|
|
FUEL Database on MontaVista Linux
Whether building a mobile handset, a car navigation system, a package tracking device, or a home entertainment console, developers need capable software systems, including an operating system, development tools, and supporting libraries, to gain maximum benefit from their hardware platform and to meet aggressive time-to-market goals.
Breaking New Ground: The Evolution of Linux Clustering
With a platform comprising a complete Linux distribution, enhanced for clustering, and tailored for HPC, Penguin Computing¿s Scyld Software provides the building blocks for organizations from enterprises to workgroups to deploy, manage, and maintain Linux clusters, regardless of their size.
Data Monitoring with NightStar LX
Unlike ordinary debuggers, NightStar LX doesn¿t leave you stranded in the dark. It¿s more than just a debugger, it¿s a whole suite of integrated diagnostic tools designed for time-critical Linux applications to reduce test time, increase productivity and lower costs. You can debug, monitor, analyze and tune with minimal intrusion, so you see real execution behavior. And that¿s positively illuminating.
Virtualizing Service Provider Networks with Vyatta
This paper highlights Vyatta's unique ability to virtualize networking functions using Vyatta's secure routing software in service provider environments.
High Availability Messaging Solution Using AXIGEN, Heartbeat and DRBD
This white paper discusses a high-availability messaging solution relying on the AXIGEN Mail Server, Heartbeat and DRBD. Solution architecture and implementation, as well as benefits of using AXIGEN for this setup are all presented in detail.
Understanding the Financial Benefits of Open Source
Will open source pay off? Open source is becoming standard within enterprises, often because of cost savings. Find out how much of a financial impact it can have on your organization. Get this methodology and calculator now, compliments of JBoss.
Embedded Hardware and OS Technology Empower PC-Based Platforms
The modern embedded computer is the jack of all trades appearing in many forms.
Data Management for Real-Time Distributed Systems
This paper provides an overview of the network-centric computing model, data distribution services, and distributed data management. It then describes how the SkyBoard integration and synchronization service, coupled with an implementation of the OMG¿s Data Distribution Service (DDS) standard, can be used to create an efficient data distribution, storage, and retrieval system.
7 Advantages of D2D Backup
For decades, tape has been the backup medium of choice. But, now, disk-to-disk (D2D) backup is gaining in favor. Learn why you should make the move in this whitepaper.
|
|
|
|
|
news feed