A camera is an optical or opto-electronic device that records a 2D image of a 3D scene. Cameras can be still cameras (photography) or video cameras for moving images.

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Building a MJPG Camera

I am working on a project that needs a custom camera capable of MJPG over WIFI. The project is a solar powered camera on a track the tracks objects walking past. The device should transmit the images ...
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37 views

Synchronized digital cameras

at the moment im doing some research. I want to create an embedded "application" with two digital cameras ( > 30fps, global shutter, >= 800x600 resolution ) on an Freescale Arm iMx. 6 Quad (i think ...
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46 views

How do image sensors output in different resolutions?

Say an image sensor has an array size of 1280 x 800 pixels. Its specifications state that it has output support for the following resolutions: WXGA (1280 x 800) and VGA (640 x 480). My question is ...
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60 views

Why would any smartphone need an ambient light sensor if it already has a front-facing camera?

Why would any smartphone (e.g. the Samsung Galaxy S5) need an ambient light sensor if it already has a front-facing camera? Surely it requires time and money for the engineers to design an ambient ...
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33 views

DC Iris control circuit

Does anyone understand how a control circuit for the DC Iris found in video camera lenses works? From my research I see that it is a four pin interface two pins for drive, and two for "damping". I ...
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46 views

Camera Parallel Interface vs Camera Serial Interface?

I need to select a System on Module that will be used to stream a HD video stream over WIFI. Ideally it should support two camera input. When researching the various modules on the market, I find ...
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1answer
251 views

Removing ripples from PWM controlled LED in camera vision application

I have made a camera vision setup with highpower LED's which are controlled with a simple NE555 timer and a mosfet. The LED system is lighting up an area where a camera is looking, but unfortunately i ...
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1answer
64 views

Camera Synchronization

I'm interested in having two or more cameras precisely synchronized for machine vision purposes. All the global shutter cameras I've seen basically have two modes: free-running, with a maximum frame ...
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101 views

Finding serial port on generic IP Camera PCB

Background story is that during firmware update of a generic IP Camera, with great wisdom, I managed to wipe part of the embedded Linux files, and in order to recover it, I need to access the ...
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104 views

PCB data trace lengths tolerable difference for high frequency

I have to interface a camera to a controller using the DCMI protocol for my project. I have around 17 (data+control) lines which are used with the camera. The frequency of operation is about 10 MHz. ...
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2answers
142 views

How does 3D Time-of-Flight (TOF) camera work?

This is my first post in this forum! So Point me if anything is not clear! I want to know how TOF camera works? So I've done Google & read some nice explanation about How Phase difference between ...
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53 views

Using ethernet with a camera

I own one of those little pinhole 'spy cameras' that connect to your tv.and are powered by 5v? With an arduino and ethernet shield, would there be a way for me to create an IP camera type thing?
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Sourcing An Image Sensor? [closed]

I'm wanting to create a basic digital camera, I have most of it figured out... except for the image sensor itself. Looking in the normal places (digikey, mouser), I'm finding some very basic, low ...
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84 views

Designing an over voltage protection for really low voltage

I'm working on time lapse photography projects and one of the main problems is the voltage supply. So, using a couple of hot glue tubes I was able to create dummy batteries for my camera to connect an ...
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78 views

Spy camera in a pen with streaming

I want to have a device in a pen, which can somehow transfer video data (or even photo would be great) within a 80-120m range. There're lots of "spy pens" on eBay, but I need one to be able to do its ...
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4answers
117 views

Industrial flash (LED?) for rolling shutter

I am developing industrial monitoring system, at this moment with Raspberry Pi and its camera (this might change if it is not satisfactory). The camera will take still pictures of the scene once in a ...
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2answers
62 views

Best Sensor for obtaining types of objects at a distance

I could not completely describe the sensor required in the title, what I am looking for is a sensor that can pick up if there is a different material, from a preconfigured material type, lets say in ...
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76 views

Are there thermovision cameras available to hobbyists?

Years ago, while investigating a short, it came to me that using a thermal vision camera would help an electrical engineer in a lot of situations. Checking it then, such devices were prohibitively ...
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1answer
25 views

Amperage for Sony SNC-VB630 Camera [closed]

I am trying to choose a right DC adapter for SNC-VB630 CCTV Camera but the only specs I could find in the official documentation was 'INPUT 12V DC'. Nothing about amperage. I have a 12V dc adapter ...
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1answer
64 views

Can I modify this bluetooth keyboard to only have a certain keys so I can carry it around?

I'm trying to make a bluetooth remote shutter release thing for Androird and iOS. I asked about doing it from scratch but everyone thinks it's too ambitious for a beginner, so I gave up on that Few ...
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116 views

Differences between MIPI-CSI1 and MIPI-CSI2

I'm trying to find what makes a difference between MIPI-CSI1 and MIPI-CSI2. From what I understand on this specifications document, they both work the same way, except that MIPI-CSI2 offers up to ...
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1answer
64 views

Displays, camera, speakers, microphones: why after more than 50 years of development do they still need calibration? [closed]

An old question running through my mind: Displays, camera, speakers, microphones: why after more than 50 years of development do they still need calibration? Whatever cheap or high-end material I ...
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1answer
71 views

Analog video surveillance camera motion detection feature [closed]

For example Samsung SCB-2000PH Specification PDF has motion detection feature. For what purpose it is in analog camera? That camera does not have any output pins/connectors, that can trigger some ...
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144 views

Canon EF SPI data protocol and IS activation

I have been trying to find information about Canon EF data protocol between lens and body. So far I have seen examples how to control focus or aperture but I would like to know how IS is activated. Is ...
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1answer
337 views

Is there a wifi chip on this board? [closed]

I have a Sony QX10 camera, with comes with built-in wifi. I want to to connect wired ethernet to it. I was hoping I could find a wifi chip inside the camera, and solder to where the ethernet traces go ...
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Why is it so expensive to produce cameras for non visible light?

Typical consumer cameras can capture wavelength of 390-700 nm 400-1050nm . But why is it so difficult and expensive to produce cameras for infrared, ultraviolet, hard x-rays, etc.? The only thing ...
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66 views

Marsboard A20 camera module

Is it possible to use this camera module (or any other same camera module, preferably PAL) with new MarsBoard A20? According to specs, it has only CIF camera headers and some other EXT headers. So ...
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3answers
111 views

Selecting digital componentry in bulk [closed]

There are a ton of electronics retailers and suppliers on the internet, all selling components at (essentially) retail prices. But when big companies need to use digital components (batteries, ...
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1answer
201 views

OV7670 frames are 640x308 not 640x480

There is a lot of helpful information on the internet about getting the OV7670 camera up and running but the following problem has me a bit stumped. I am using a Maple r5 Board (STM32F103RBT6) to ...
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99 views

Safe line IR laser which will be seen from 15 meters by camera module

What characteristics (wavelength, mW) IR line laser should have to: be seen by camera module from 15 meters outdoor in day-light too safe for eyes line as big as possible thickness of line should ...
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2answers
263 views

How do you wire up the OV3640 camera module?

I've been wanting to do a project with this module in mind and have found some resources on it (mainly arducam) but I have no idea how to connect it to a micro controller. The data sheets show that ...
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1answer
119 views

Xilinx Video Timing Controller freezes processor

I'm trying to acquire video from an image sensor using a ZedBoard with Vivado 2014.2 and I used an existing (working) video passthrough project of mine and simply added in a debayer (color filter ...
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1answer
1k views

Raspberry Pi stereo camera frame synchronization/genlock (video or still image)

I need to frame synchronize a stereo camera for a computer vision application. The synchronization should the best possible, hopefully on a millisecond level. I would like to get about 10 FPS either ...
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596 views

Genlock two OV5642 camera modules on Arduino with ArduCam

I need to shoot stereo video or stills at about 10 FPS possibly in perfect sync. My plan is to set up a 3D stereo rig (2 standalone units - each consisting of Arduino UNO + ArduCam shield + OV5642 ...
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468 views

Interfacing MSP430 Launchpad with OmniVision Camera Module?

I have seen that it is possible to interface an OmniVision OV2640 camera module with Ardiuno Uno. Would it be possible to interface this Camera Module with an MSP430 Launchpad board to get a video ...
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2answers
187 views

Digital camera sensors and long exposures

Why do digital cameras need a long exposure time in low light conditions? Sometimes the exposures are 15-30 seconds or longer. Doesn't the electronic sensor achieve a steady state under 1 second or ...
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1answer
246 views

Instructions on building CMOS camera wifi video transmission [closed]

I am not sure this is the appropriate place to ask this kind of question, but I believe this is the best community to ask. I'd like to learn how to build my own circuit that would be capable of ...
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1answer
346 views

Can an IR camera be used in broad daylight?

I am wondering if it is at all possible to have an IR camera that can be faithfully used in broad daylight. I have already seen this question here, but I am looking to understand if a full blown ...
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1answer
105 views

Determining purpose of camera pins [closed]

I bought a small HD camera for a quadrocopter. It is dedicated for the specific model and supports filming motion JPEG movies and shooting stills. (photos not mine) The connector is custom and ...
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1answer
106 views

Testing camera framerate variability by filming clock time

I would like to test the framerate variation from nominal value in a range of consumer video cameras. For this I intend to film some sort of high frequency clock and compare the displayed clock time ...
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1answer
123 views

3ms Camera LED Flash

After getting some ideas (thanks to users Russell McMahon, akellyirl, The Photon...) and some extra research and redesign, I would like to hear opinions about how to approach my LED flash project. ...
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80 views

Cell phones video encoding

My question is, how are cell phones bale to produce on the fly video like mp4? Are they using a hardware encoder chip? Because most of them run on ARM chips? Are there ARM chips that can handle the ...
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121 views

Building a H264 Camera circuit

Good Day, I am working on a project that requires a camera module that links up to a linux board. The future plan is to make a custom PCB, however, it seems that there are no resources out there that ...
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2answers
106 views

Powering DSLR with buck/boost convertor

I've been experimenting a bit with time-lapse photography lately. Still basic stuff. Right now I have to change batteries every so often which is a pain because it's hard not to move the camera when ...
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1answer
94 views

Can infrared cameras be used in the presence of light or is it compulsory it has to be used in the dark, to get a thermal image of the desired object? [closed]

The question I asked could seem silly but I was wondering if there was a way of capturing the heat signatures of objects or people even during the day time. Also if we were to use an infrared camera, ...
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0answers
225 views

Transform RGB RAW 8-bit/10-bit into JPG

Any guidance in how to convert the RGB RAW 8-bit/10-bit output of a OV9715 sensor using Arduino? Any free software library we could use? Is it possible to process the JPG with some open hardware like ...
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1answer
82 views

How can I find out which leads are +, - and video signal on this miniature camera? [closed]

I have this miniature camera but lost the cable connector. How can I find out which of the leads are positive, negative and video signals?
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137 views

What is special about camera flash capacitors?

Capacitor manufacturers offer capacitor series that are specifically targeted on camera flash applications. For example, Rubycon has the FW series, and NCC has the PH series. These have working ...
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105 views

Where can I buy a finished mobile camera module? [closed]

I am interested in buying a really small camera module for one of my projects. I know I can buy some iPhone/Samsung camera replacements on Ebay. But I have no information on their connectors and ...
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67 views

Problems with extending camera module bus/cable?

I like the idea of using a GoPro (or other action camera) as a helmet cam when I'm riding my motorcycle, but I don't like having a big box glued to my forehead. I'm imagining a camera with the camera ...