The LifeCam HD-5000 webcam is a decent webcam with an annoying feature. The autofocus keeps shifting the focus around if you move your head slightly. When you are in a video chat with someone, this can get annoying for the other viewers. Your face will shift in and out of focus.

I have a Microsoft LifeCam HD-5000 webcams. According to AMCap, the camera outputs a MJPEG stream at 30fps at 720p. I want to capture each JPEG frame in a small application without doing any preview or decompression/transcoding to minimize CPU utilization to the minimum possible.


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I am trying to set up a virtual machine which will act as a home security system. (If you've chatted with me in The Tavern, you may know why...) I purchased two USB webcams (Microsoft LifeCam HD-5000) and am trying to get them to work with Motion. However when I connected them to my Ubuntu 10.10 VM, no /dev/video devices were created. dmesg said:

It was a stroke of luck that the Microsoft LifeCam HD-5000 dropped through onto the doormat of Pocket-lint Towers, just as the Chat Roulette phenomenon of 2010 was hitting the Internet. However our interest soon wore off as the fifth male member in a row graced our screen, and after a group counselling session we finally managed to turn our attention to the webcam itself.

Aimed at the budget conscious and what looks to be a follow up to the LifeCam Cinema, the HD-5000 sits alongside its counterpart the 6000, the former supposedly designed for desktops and the latter for laptops. The 5000 that greeted us was a small, highly portable device with the outer casing entirely made out of plastic; which included the lens. However, despite the cheaper materials the HD-5000 retained an air of quality and would certainly be able to withstand a few knocks in the bottom of a bag.


The LifeCam's black body gets a silver bezel surrounding the lens, with key features being a rectangular button (flush with the body) on top of the device for firing up Windows Live Messenger, and a flexible stand/strip.



The Messenger button carried out its task dutifully and launched Messenger whenever pressed - incidentally it'll also cope fine with Yahoo! Messenger, AOL Instant Messenger and Skype. In attempting to use the flexible stand to attach it to both a desktop and laptop screen we were a little perturbed at its apparent instability. However, after a couple of goes, and rather vigorous twists of the strip it seemed to sit aloft our chosen device in a secure manner.


The LifeCam HD-5000 proved very easy to set-up, with us slotting it into our laptop via the USB connection and firing up the disk included in the box. The interface was very straightforward and we doubt anyone would need to even glance at the instructions to make use of the various options on offer.

With LifeCam HD-5000, it's simple to start video calls. One touch of the Windows Live Call Button lets you see who's online, and you're on your way to making a video call. Start a movie project with one click, then upload widescreen video to social networking sites on Windows Live Movie Maker. And easily upload a photo that you can edit, tag, and share with friends and family through Windows Live Photo Gallery. Do this all with sharp images and outstanding video quality with the LifeCam HD-5000.

Designed to offer a cheap-and-cheerful upgrade path, the HD-5000 - unlike others in the LifeCam range - doesn't feature a high-precision glass element lens or an aluminium body. Instead, the camera is housed in a simple plastic frame from which extends an adjustable rubber mount.

Connected via a standard USB 2.0 cable that's long enough to reach most monitors, the HD-5000 is very straightforward to configure. Run the bundled Microsoft software CD, install the LifeCam software, attach the webcam and you're done.

The HD-5000 is "optimised" for use with Microsoft's Windows Live Messenger - hence the dedicated Messenger Call button that sadly can't be programmed to another app - but will function with other messenger clients such as Yahoo! Messenger, AOL Instant Messenger and Skype. Users of the latter, however, won't be able to make use of the LifeCam's HD resolution for video calls as Skype requires HD webcams that are fitted with an on-board video encoder.

Without the built-in hardware, Microsoft's budget HD cam instead relies on the user's PC to carry out most of the leg work. The minimum system requirements include an Intel dual-core 1.6GHz processor and at least 1GB of RAM, but Microsoft actually recommends at least a 3.0GHz dual-core chip or better. Exactly how CPU-intensive can a webcam be? Whilst capturing 720p (1,280x720) video, we found CPU usage rose to around the 15 per cent mark on an ultra-high-end Core i7 975 processor. Not a great concern for high-performance machines, but the HD-5000 can take its toll on lesser systems. On a Dell Inspiron 1520 notebook (Core 2 Duo T7500), CPU usage shoots up to 45 per cent.

The use of valuable system resources might be a burden, but it's a burden you may be willing to accept in exchange for better-quality webcam video. In use, the LifeCam HD-5000 is able to produce good colour and reasonable detail, and the widescreen viewing angle is great for fitting more into webcam conversations.

The sample image above sums up overall quality fairly well. The HD-5000 produces results that are notably better than most integrated webcams, but the image remains grainy and TrueColor's attempt to automatically control exposure provides mixed results. Though the subject does benefit from the image processing, backgrounds often appear washed out. Low-light performance, however, is good, and the webcam's integrated microphone does an excellent job of picking up clear speech from around the room. e24fc04721

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