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matjaz

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Everything posted by matjaz

  1. http://www.pixim.com/images/side-by-side-images "Because each pixel has its own analog-to-digital converter and the information generated is captured and processed independently, each pixel in effect acts as its own camera. The exposure time for each pixel is adjusted to handle the unique lighting conditions at that pixel location in the image sensor array. A product built with the Digital Pixel System platform essentially has hundreds of thousands of individual cameras, each of which produces the best image possible. These images are then combined to create a high quality video frame or picture. In contrast, other technologies typically set one exposure time for the frame and sample each pixel at that time – resulting in images with some pixels that are underexposed (too dark) and some that are overexposed (too bright)."
  2. sorry .... i was reading to fast ...
  3. matjaz

    Wireless Camera Setup!! HELP!!!

    you can use WDS, which stands for Wireless Distribution System, is a feature that enables single-radio APs to be wirelessly inconnected instead of using a wired Ethernet connection. Many ruters support this, and for cheaper ones there is WRT firmware. But i am not sure if this will work for that scale of install (bandwidht)
  4. matjaz

    Wireless Camera Setup!! HELP!!!

    agree with GrouchoBoucho .... if we forget signal strenght ( in EU is limited) and weather facts ....think about bandwidth - 30 x 800 kb its really hard to set up .. i didnt see any reliable wireless setup at that magnitude ... i dont say its not possibille but it will be tricy ... i am interested on other member inputs on this ...
  5. matjaz

    IE9 and my China Brand DVR

    And another thing : there is one more settings in IE9 than can affect video : somewhere in Tools section you have choice of using bitmap rendering VS GPU acclerated rendering. But right now i cant remember exact location, will look when i come home
  6. matjaz

    IE9 and my China Brand DVR

    Yes i test this procedure and its worked on this series of generic chinese DVR http://www.ebax.si/app/trg/index.php/cameras-cctv-recorders-c-21_79 ( i think its manufacturer is BXS). But you must still set up active x access controls like usually. I must follow this procedure to enable active x ; http://www.ebax.si/privat-kamere/videonadzorne-kamere-E-ActiveX%20Controls.pdf Bt since active x access has so many limitatons , i alwasy try to instal clinent DVR program and a nice icon od desktop
  7. i have situation like you and foud that cameras with Pixim realy works miracles in such cases. It has cmos and is capable of procesing image on pixel base and not on frame base . Here are some generic models for reference http://www.ebax.si/app/trg/index.php/cameras-cctv-pixim-camera-c-21_404?language=en ( for info only, they dont sell to usa)
  8. Not true. Primary strem is usualy MPEG based with all his problems.MPEG based compresions - like AVC - are great for stream-transport , because they record only diffirence betwen pictures. MPEG is using IBP frames and that basicly mean, than only every n-th frame is full, all other are constructed or compued from previus and next I frams. ( they areMPEG compressions with only editable I frames - mainly in video production - , but that means that they are then basicly sequences of JPG pictures - same as MJPEG). MPEG compression is extremly usefull in CCTV (talking heads sceenes) , but can be problematic on court if requested snapshot dosent exist and is "reconstructed". MJPEG on other side can always produce unreconstructed freame, but at cost of bandwidth and storagespace. So many misson critical casses ask for MJPEG compression. MJPEG is series of full frames with regular JPEG compression, but compresed per frame. i found some times ago a nice presentation of this from OnSSI : http://ebax.si/privat-kamere/videonadzor-kamere-kompresija.pdf
  9. http://www.zoneminder.com/downloads Thanks to the endeavour of Viktor Petersson, its now even easier to try out ZoneMinder. A new ZoneMinder Virtual Appliance is now available from the VMWare Virtual Appliance Marketplace. Please note that this version is most suited for use with Network Cameras as video capture card hardware is not generally supported by virtual servers.. About the Virtual Appliance This is a turn-key virtual appliance for the amazing Open Source video surveillance solution ZoneMinder. Compatible with VMware Server 2.0 / ESX / Fusion. [Copied from ZoneMinder.com] ZoneMinder is intended for use in single or multi-camera video security applications, including commercial or home CCTV, theft prevention and child, family member or home monitoring and other domestic care scenarios such as nanny cam installations. It supports capture, analysis, recording, and monitoring of video data coming from one or more video or network cameras attached to a Linux system. ZoneMinder also support web and semi-automatic control of Pan/Tilt/Zoom cameras using a variety of protocols. It is suitable for use as a DIY home video security system and for commercial or professional video security and surveillance. It can also be integrated into a home automation system via X.10 or other protocols. If you’re looking for a low cost CCTV system or a more flexible alternative to cheap DVR systems then why not give ZoneMinder a try? How To Use Point your browser to the IP address of the Virtual Appliance and you’re ready to start using ZoneMinder. http://viktorpetersson.com/open-source/zoneminder-virtual-appliance/
  10. If you wanna high definition video then NVR , for standard PAL/NTSC go for DVR. Look also at Hybride recorders : they can use lets say 5 cheap NTSC cameras and 2 High deginition Megapixel at same time.
  11. 500 feet = 152.4 meters , i think its distance .... try to use higer current and/or voltage ... so if you use 500 mA 12 V DC try with 1000 mA 12 V DC , then try 14 V ...
  12. matjaz

    IE9 and my China Brand DVR

    in IE9 click F12 . On developer toolbar set up IE 8 mode http://msdn.microsoft.com/en-us/library/ie/gg589512(v=vs.85).aspx#OpeningTools
  13. matjaz

    Which Hard Drive?

    problem with Green disks is their energy save funcion with internal fast head spindown , variable spin rate and similiar settings . As such they are good for computer use ( computer can control advanced settings in firmware) but not for DVR or any other UNIX or LINUX based contnius recording of large chunks of data. In other words : if you record room with 1 passing person per 10 minuts using motion detection fuction and your green disk inside DVR park heads (with plate spinup and spindown) on every 5 minutes your disk will be dead in one year. Also manufacturers dont recomand use of green disk in any RAID . Why ? If raid detect spindown of HD he will declare failed drive. Its not so simple, but you got the point.
  14. matjaz

    DVR Login failed - In LAN

    When i reset my DVR to factury default , he always got factory default username/password . With other words, if you reset DVR than does not mean that there will be NO password, it only mean that he will replace existing password with DEFAULT password. So you will need to find a manual or ask tech support, or you can post picture of front panel if anyone on board have any clue.
  15. this and many older cameras uses active-x for video stream and this will always pop up a warning display, so it will scare youre user. Another big problem is, that Active X works by default only in Internet Explorer . Beter option is RTSP video stream from IP camera (without any servers) or image upload to ftp + meta atorefresh tag in html How to Configure ActiveX in Internet Explorer Step 1 – Launch Internet Explorer by double clicking the program icon on your computer’s desktop. Step 2 – Select the “Tools” menu followed by clicking the “Internet Options” sub-menu. Step 3 – Choose the “Security” menu tab and use the computer’s mouse to select the Internet Zone corresponding to the overall desired security level on the computer. Step 4 – Choose the zone on the “Security Tab” for which you desire to manage the ActiveX controls followed by clicking the “Custom Level” menu option. Step 5 – Scroll down the screen to the “Run ActiveX controls and plug-ins” menu option and select the “Administrator Approved” menu option. Step 6 – Repeat step 5 for all Internet zones that you want to enable ActiveX controls. Step 7 – Depending on the version of Internet Explorer installed on your computer, you may need to either exit and restart the browser or restart your computer for the changes to take effect. How to Configure ActiveX Installation Policy for the Trusted Sites Zone Websites that you or your organization trusts can be added to the “Trusted sites zone” to allow installation of ActiveX controls without network administrator approval. If a site uses one or more sub-domains, the wildcard character can be used in combination with a subdomain to permit multiple URLs to install controls. For example, if https://*.tech-faq.com is added to the Trusted sites zone policy setting, then all web sites at tech-faq.com will be allowed to install ActiveX controls onto a single or group of computers. Before enabling this feature, all servers in the sub-domains should be verified to be trusted. Step 1 – Select the “Start” button and enter “gpedit.msc” in the “Search Text Field” followed by pressing the “Enter” key to launch the “Local Group Policy Editor.” Step 2 – Select the “ActiveX Installer Service” located under the “Local Computer Policy\Computer Configuration\Administrative Templates\Windows Components” menu tree. Then, right-click the “ActiveX installation policy for sites in Trusted Zone” menu option located in the details pane. Step 3 – Click the “Edit” menu button to open the policy setting and select the “Enabled” menu option located in the “ActiveX installation policy for sites in Trusted zones” dialog box. Step 4 – Choose the policy settings to apply to sites in the “Trusted sites zone” under the options menu. Step 5 – Configure desired installation options such as “silent installs,” “prompt the user,” or “Don’t install” for controls that you do not want to be installed on the computer on the current menu. Policy statements can be entered for signed, unsigned, and signed by a trusted publisher controls in this configuration menu. Controls using secure server validation (HTTPS) can also be configured to be permitted in this menu in the absence of a valid security certificate. Step 6 – Click the “Ok” menu button to apply changes and exit the Group Policy Editor application.
  16. + they need more or less clear raio space . If you have one or more old 2.4 wireless computer network near them, then you have problems. You can change chanells to some degree, but you cant have booth working optimal on max distances.
  17. pfrom youre log problem is driver of this CCTV card or his driver. Look for other (newer or older) driver for youre CCTV card. Do you have bios settings on default ? Is some kind of S1-S4 energy saving enabled in bios? This can cause problems of this kind too, if driver is poorly writen. Try to disable all energy saving functions in bios AND in windows.
  18. matjaz

    av tech ,remote problem

    that behaviur i see when there is wrog combination of firmware and client. In other words, doublechech that you have right client version for youre DVR revision,
  19. matjaz

    GV1480A and TV Out with HDTV?

    HDMI will transfer HD to TV without problems, DVI can be a tricky one. But be carefull to use HDMI cable certificated for lenght that you need ... you cant join 2 5-meters HDMI and expect good quality ... HDMI for 10 meters must be build from better cable than 3 meters HDMI. Cheaper option is HDMI over CAT-5 cable with cheap HDMI extender like this http://www.ebax.si/app/trg/product_info.php/hdmi-extender-over-utp-p-3154 (just for ilustration, they dont sell to USA)
  20. matjaz

    hard drives

    ideal for CCTV are AV ( audio video) hard drives with 5400 RPM and special firmware made for long sequential chunks of video files with a good termal characteristic. Any temperature over 60 celz. can harm magnetic plates inside hard drive so usual hard drives optimized for daily PC use are not optimal choice . Keeep away from any "green" drives with energy comsuption optimization - they will park write heads way too fast ant that feature in combination with motion detection drived recording will kill them fast. By all means swap rack for HD is better option - in case of police and court action, you can take out HD and always present original recording on HD and not some "backup" on usb key that can be "altered" . Even recorded backup footage on CD can be dismissed on court by good advocate if recording and backup proces was not made by athorized techican (at least this is court practice here)
  21. If you have enabled video overlay & sounds in advanced settings for MS Remote access and stil have this problem then obivus youre graphic driver have problem with video overlay . Try to update graphic driver.
  22. matjaz

    windows 7 64 bit and Geovision remote view client

    One possibile free solution is virtual machine . With free software you can convert old XP into virtual machine ant then run this on Win 7 64 bit http://www.petri.co.il/virtual_convert_physical_machines_to_virtual_machines_with_vmware_converter.htm http://www.online-tech-tips.com/free-software-downloads/convert-pc-into-virtual-machine/ http://blog.zeltser.com/post/15781390680/windows-xp-mode-for-vmware-virtualization
  23. matjaz

    av tech ,remote problem

    try with fixed ip ( ask youre inet provider) and check if there are no blocked ports on his side - sometimes they block popular ports for "security" reasons
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