Specify video format, e.g. NTSC, ATSC, VGA, etc.
-3
votes
1answer
39 views
Synchronizing video inputs from multiple camera sensors [closed]
I am working on a project, in which i need to take 4 video inputs from different camera sensors. On the next stage, i need to process/fuse these 4 video signals to get one final video signal. ...
1
vote
2answers
67 views
Regulate brightness over video composite signal
I have a b/w camera that outputs a video composite signal. At night it works very well, but during the day it's so bright everything just turns white. Is it possible to add a potentiometer to be able ...
0
votes
0answers
52 views
How much of “hardware” video codecs is actually implemented as fixed-function circuitry? [closed]
Many GPUs and mobile SoCs nowadays provide hardware accelerated decoding of most of the common video codecs (H.264, MPEG-4 part 2 etc).
I'm wondering how they support the various codecs internally: ...
-4
votes
1answer
70 views
Device RGB output to HDMI TV input [closed]
I have a device which has an RGB output; however, my TV has an HDMI input.
What is the difference between these two types of video signals?
Is there a cable converter which will work to connect the ...
5
votes
1answer
161 views
Is there an FPGA based vector graphics card project?
I have been messing around with VGA projects as my latest interest. I have a Xilinx Spartan 3E 250K FPGA, which has just barely too little RAM for a full 640x480 frame buffer. So, I'm looking at ...
5
votes
2answers
275 views
How do analog video signals work
I have always wondered how an only 1 wire line (signal and ground) can make a whole color image appear on a screen full of thousands of pixels. How exactly do these signals work and what ...
2
votes
3answers
228 views
Generation of text on composite video
I'm building a homebrew computer. I want some way to get video out, preferably along the lines of 80x25 text. I'm not interested in framebuffer graphics.
Does such a thing exist as a single-chip text ...
-2
votes
1answer
58 views
nvidia display adapter downgraded itself to HD [closed]
I am experiencing something strange in one of my laptops that I haven't seen before. The laptop is an ASUS K52JC, has an Nvidia Geforce 310M. I have it setup as a dual boot with both windows 7 and ...
-3
votes
1answer
72 views
Transmit video from a usb/ttl camera [closed]
I'm currently working on a project which requires to transmit video wirelessly(RF).After I've done tons of research online,I still don't have a clue how to achieve this.
Is there a kind of IC that ...
-2
votes
1answer
480 views
Can I connect a BNC output of DVR to the antenna input of a LED TV? [closed]
I have a DVR and a LED TV. The DVR provides 2 video outputs, VGA and BNC but the LED TV only accepts 2 possible video input (HDMI and antenna socket).
In my mental model, as the BNC output of DVR and ...
3
votes
1answer
136 views
Bandpass Filter Design 6Mhz/6.5Mhz Center Approx +/- 250khz passband for ATV system
I'm looking to build two bandpass filters centered at 6Mhz and 6.5Mhz, with an approximate passband of 250kHz. I want to replace these two filters:
http://www.yoketant.com.tw/yoketant/ceramic-7.htm
...
2
votes
1answer
211 views
Adding WiFi to OSLess embedded device
I'm looking for some advice as to the best way to achieve wireless
video streaming from an OSLess embedded system we are building.
I have never done any work with WiFi before so all the help I can ...
1
vote
1answer
549 views
how to convert a Sync-on-green to VGA (seperate sync) signal?
I have a computer (VAXstation 3100/M76), that has a sync-on-green output:
red --(
green + sync --(
blue --(
I want to attach that to a standard ...
2
votes
1answer
128 views
Why does analog video signal in computers change?
I've been told that analog video signal from computer's graphics card changes somehow, and because of that there is an "auto" button on many monitors that connect via d-sub.
Why does the video signal ...
3
votes
1answer
106 views
Memory interface for video output
I am designing a system where a DSP (like the TMS320VC5501) processes some video data and outputs it to a PSP screen (the ones sold on sparkfun). The issue I'm having here is designing the video ...
0
votes
1answer
184 views
Video Composite signals
What are the considerations for PCB layout, and connector selection for video signals. Is it necessary to follow 75ohm impedance criteria in a closed system. The pipeline starts at Sony FCB IX 11 A ...
2
votes
1answer
88 views
Video Transmitter/Receiver Books&Schematics [closed]
I'm looking to build a video/audio or just video transmitter and receiver for use in robots. I'm primarily doing it as an excercise, but I'd love to be able to get a range of 100-200 meters. I'd love ...
-4
votes
1answer
108 views
Options for connecting device to the internet [closed]
So I am not sure if these types of questions are allowed here but I am just looking for some general advice to get started ond a hardware project I want to work on.
A simplified version of what I ...
0
votes
3answers
161 views
What would be the cheapest way to get video signal?
I have an OSD that I would fiddle around with till I'll get new camera. For OSD to work, I need PAL video signal, it may be anything, like black only.
I was thinking may be test video signal ...
-3
votes
1answer
122 views
What's the cheapest way to receive live video from a weather balloon? [closed]
I was thinking about sending a weather balloon payload up to the lower stratosphere or so, and thought that a live video feed would be a cool idea. The camera would be a webcam connected to a ...
0
votes
3answers
3k views
Transmitting a video stream through a microcontroller's wifi
I'm working a a project that currently works well but this year we want to expand it by collecting data from it, independent of its current functions. We have set up an iPad App to control an Arduino ...
1
vote
2answers
2k views
Transmitting a video stream through a microcontroller
I'm working a a project that currently works well but this year we want to expand it by collecting data from it, independent of its current functions. We have set up an iPad App to control an Arduino ...
2
votes
1answer
240 views
1.2 GHz Cloverleaf Antenna tolerance
I'm working on building my own Cloverleaf antennas, to work at 1.2 GHz, for the video system on my Quadcopter. At this frequency, what kind of tolerance am I looking at in terms of the length of the ...
0
votes
2answers
511 views
develop webcamera with battery and memory to SELF RECORDING (Disc Processing System)
In my studies projects I want to make an camera with
SD memory card or USB mass storage (which is simple)
micro-controller to translate commands (start recording, dump JPEG to SD card to ...
0
votes
2answers
416 views
How to feed an SPI TFT display a signal from a composite video source
Here is the module I am looking at: 1.8" Serial 128X160 SPI TFT LCD Module Display + PCB Adapter with SD Socket
So my question is, is there any way I could convert a video signal from a composite ...
2
votes
3answers
340 views
Transmit video wirelessly from on board camera over short distance [duplicate]
Possible Duplicate:
Cheapest way to wirelessly transmit video
I asked a similar question a few days ago, but I think I was unclear about my requirements, and they have changed a little ...
0
votes
1answer
205 views
Mesh network with high data rate on 868MHz
I need to create a wireless network with high expactations to redundancy and security, making my choise fall on a mesh type network. Between the nodes I should be able to transfer video or at least ...
6
votes
2answers
185 views
Does VGA have to be drawn at 60hz?
I'm wanting to generate a VGA signal hopefully as painlessly as possible.
I have an odd question though. Everywhere I see that VGA requires a 25MHz clock for the sync signals.
Is it possible to ...
3
votes
1answer
140 views
Cheapest way to wirelessly transmit video
I'm really big on building RC vehicles. I want to hook up a video camera which can transmit video signals, but don't know what options I have available.
My only requirement is that it has to be as ...
5
votes
2answers
136 views
What is “rabbit ear” in a video-capture context?
I was reading the TVP5158 datasheet, and ran into a register bit that would enable "rabbit ear". What is that?
3
votes
3answers
184 views
Sync video with data
When I have a datalogger and I want to sync a video-file to the recording, what would be an easy method? The logger and the camera both have an internal clock, but they may not be set exactly to the ...
2
votes
1answer
775 views
image distortion generating VGA signal on STM32 f4 using DMA
I'm trying to build a video generator using the STM32f4 (168MHz, using discovery board) + R ladder DAC to the VGA signal.
The idea is not to be based on a framebuffer (this would limit the resolution ...
0
votes
0answers
90 views
Size of video from CmuCam4 [closed]
I would like to capture video data from a CMUCam4 and need to know how large these videos are so I know what size SD card will suffice. According to source, uncompressed video is 4 GB/s, but this does ...
1
vote
0answers
69 views
computer build problem — no video output [closed]
I am having a problem with one of my first computer builds. It is all old parts; I am building outside the case to test the main components: the cpu (w/ heatsink & fan), the memory, the graphics ...
1
vote
1answer
197 views
RC PWM video switch
I'm currently working on a quadcopter that I'm equipping with several video cameras of various sizes/quality (i.e. one high quality, forward facing camera, then three or four cheap micro cameras ...
0
votes
1answer
81 views
Is there any wire with many small wires which i can use for multiple video signal
I have 6-7 cameras at one location. The problem is i don't want to have separate cable for 8 different cameras comming to my room.
I am looking for one big wire in which i can have small 12-14 wires ...
3
votes
1answer
345 views
Composite video and DAC pin protection
My question is regarding the protection needed at the DAC pin generating the video signal.
I am doing the generation on a STM32F4Discovery. The STM32F40x has a DAC built in and it can drive the signal ...
-1
votes
1answer
269 views
Turning an old digital point and shoot camera into a webcam [closed]
I have an old 5 megapixel Sony Cybershot DSC (I think it's this one) lying around somewhere, and since it is pretty much obsolete (but it shoots great quality 640x480 video) I keep wondering if I ...
2
votes
1answer
146 views
FPGA project sanity check, PCIE and video processeing
I have an Altera DE4 education FPGA that I'd like to use for video processing... But the thing doesn't have many ports to work with, and I don't have the funds to purchase any daughter boards.
My ...
0
votes
1answer
99 views
Serial Camera recommendations? [closed]
I have an altera stratix iv FPGA, given to me by my professor to do a project that involves video processing.
The ports I have to work with are RS232 (female), an IDE port and several SATA ports, and ...
1
vote
1answer
312 views
Coaxial Switch Using Arduino and Multiplexers
Hi maybe someone can help me here, basically I am trying to build a computer controlled coaxial switch. I am using a regular Integrated circuit multiplexer to handle which channel is patched to ...
-1
votes
2answers
3k views
Getting TV video from a motorola MBP36 video baby monitor
I have a Motorola MBP36 (binatone) video baby monitor model MBP36. We (actually a lot of people) want to display the video to a TV, RCA or HDMI (whatever works). No one can find the correct USB output ...
2
votes
1answer
313 views
Soft video encoder for M4 [closed]
Video encoding is a computationally heavy task. I like to ask, are the video specs that can be managed with a ARM M4 (STM32F4 type CPU) type CPU? Perhaps low frame rate (10fps) and only VGA quality.
0
votes
1answer
81 views
Generating three voltages with a MCU
I'm going to try and generate black and white NTSC video, using a micro-controller. According to this:
https://instruct1.cit.cornell.edu/courses/ee476/video/
It is possible to do it using two pins ...
4
votes
1answer
341 views
Matching a transformer to one in a video balun - Vertical sync is off
I building an interconnect board which will hold one side of the video balun pair (plus power and rs485). The other side will be a commercially available video balun which connects to the camera.
...
0
votes
2answers
578 views
Switching RCA composite video, under uC control - circuit ideas & suggestions
Trying to use Arduino TV-Out to switch feed to a TV set, s.a. ones found in Clinics, to display some information, s.a. next patient, expected delays etc. The TV is normally playing regular programming ...
5
votes
1answer
446 views
Analog Video PCB Layout
What special considerations and/or constraints are typically applied when routing analog video signals on a PCB (e.g. VGA, NTSC, etc). I'm thinking try and keep them routed on a single layer (i.e. at ...
1
vote
0answers
135 views
surface mount video balun
I would like to build a power and video distribution board for video cameras.
Baluns are used so that I can use CAT6 cable to run video and power to the cameras.
Instead of using off the shelf ...
5
votes
1answer
231 views
Using an inertial measurement unit to compute global motion optical flow of video
I have a camera rigidly mounted together with an IMU that consists of 2-dof gyroscopes and 3-dof accelerometers. My aim is to compute the global optical flow of the image captured by the camera, in ...
1
vote
2answers
434 views
How can I separate the sync signal from a composite video signal?
I have a small device (based on an AVR microprocessor) that outputs a Black & White composite PAL video signal, designed to be plugged into a TV. I also have an old Amstrad CTM644 monitor and want ...
