With hundreds of thousands of camera module application, the standard camera modules can't meet each specific requirement, so customization process comes with necessity and popularity, the hardware and firmware modification, including module dimension, lens view angle, auto/fixed focus type and Lens filter, to empower the innovation.
Link to HBVCAM
Non-recurring
engineering completely covers the research, development, design for
producing a new product. For saving the developing time and cost, IADIY
provides the custom camera module service based on our standard camera
module solution.
The
USB camera module must have the following requirements. They are the
most important components which add photo clarity and good working
principle. The components are well specified by connecting via CMOS and
CCD integrated circuit. It must work according to user requirements and
acts as a user-friendly camera option. It will connect with lots of
things that add a perfect solution for camera requirements for USB
connection.
* Lens
* sensor
* DSP
* PCB
Resolution
is a parameter used to measure the amount of data in a bitmap image,
usually expressed as dpi (dot per inch). Simply put, the resolution of
the camera refers to the ability of the camera to analyze the image,
that is, the number of pixels of the image sensor of the camera. The
highest resolution is the size of the camera's ability to resolve
images at the highest, the highest number of pixels in the camera. The
current 30W pixel CMOS resolution is 640×480, and the resolution of
50W-pixel CMOS is 800×600. The two numbers of resolution represent the
units of the number of points in the length and width of a picture. The
aspect ratio of a digital picture is usually 4:3.
In practical applications, if the camera is used for web chat or video
conferencing, the higher the resolution, the greater the network
bandwidth required. Therefore, consumers should pay attention to this
aspect, should choose a pixel suitable for their own products according
to their needs.
The FOV angle refers to the range that the lens can cover. (The object will not be covered by the lens when it exceeds this angle.) A camera lens can cover a wide range of scenes, usually expressed by angle. This angle is called the lens FOV. The area covered by the subject through the lens on the focal plane to form a visible image is the field of view of the lens. The FOV should be decided by the application environment, The larger the lens Angle, the wider the field of view, and vice versa.
The
major parameters that have been calculated with the camera module are
the dimension, which varies the most for different requirements
depending on size and optical format. It has a field of view and focal
length for accessing with object dimension calculation. It involves
back focal length and includes a perfect lens for format. The optical
size of the lens must fit your application and depend on a conventional
one. Diameter varies as per larger sensors and implements with lens
covers. It depends on the form of vignetting or dark on the corner of
the images.
With hundreds of thousands of camera module applications, module
dimensions represent the factor that varies the most. Our engineers
have the power to develop the exact dimensions which will work best for
your specific project.
The
cost of the price product depends on the specification. The USB camera
with small EAU is not suggesting as a customized one. with Constantly
demand and personalization requirements like Lens, size, sensor, a
customized camera module is your best option.
With hundreds of thousands of camera module application, the standard camera modules can't meet each specific requirement, so customization process comes with necessity and popularity, the hardware and firmware modification, including module dimension, lens view angle, auto/fixed focus type and Lens filter, to empower the innovation.
Non-recurring engineering completely covers the research, development, design for producing a new product. For saving the developing time and cost, IADIY provides the custom camera module service based on our standard camera module solution.
In
case you have been installed the camera module or camera in your
office or small bedroom, then only 2.8mm focal length will be enough at
that point in time. In case you want to install the camera module or
camera in your backyard means then sure it must require 4mm to 6mm
focal length. The focal length is increased since space is bigger. You
will require the 8mm or 12mm focal length then you can use this in your
factory or street since space will be very much high.
When you want to choose the camera module for the NIR light then the
spectral response of the camera module will be majorly defined by the
lens material or sensor material. The sensors will be completely
silicon-based and it will show the effective response to the NIR light
in a most extraordinary manner. Compared to visible light or 850nm, the
sensitivity will be very much smaller for the 940nm. Even though you
get this still you can able to get the image very effectively. The most
important concept involved in this process will create enough light for
the camera for the purpose of detection. You will never know perfectly
when the camera can able to be triggered and can grab the perfect
timing will be very much different. So at that time, the signal will be
sent to a particular extent and one can able to choose the right camera
module.
Yes, if you send data out the serial port over USB then the camera blocks on that data transmit. If you are trying to sync cameras you have to keep in mind that you have to deal with that. You should use a master device a that generates a trigger capture signal to each camera.
I.e. if you have two cameras with the global shutter module you can set the camera module to triggered mode. Once you do this you can capture pictures in a triggered manner. Then, you should have each camera wait on an i/o pin going high to take a pic. That i/o pin per camera should be connected to a master device. That master device should only make it’s output go high to trigger the systems when it knows all the cameras are ready. Cameras report they are ready by making an i/o pin go high before they start waiting on the master trigger signal.
Hi there,
is there a way to implement stereoscopic vision a way the MT9V034 Datasheet describes (see below) ?
If i’m understand it the right way, one should have a external board with 2x MT9V034’s internally wired (which you need anyway), and the serial + controlpins broken out.
That should indeed consume less [10] GPIOs hence no parallel bus is needed anymore.
Questions is how much cpu/time is consumed by deserialization on the H7?
You also have a higher load/slow down by default due to the need to processing 2 frames at the same time.
LVDS Serial (Stand-Alone/Stereo) Output
Want more information on USB Global Shutter Camera Module? Feel free to contact us.
The LVDS interface allows for the streaming of sensor
data serially to a standard off-the-shelf deserializer up to
eight meters away from the sensor. The pixels (and controls)
are packeted-12-bit packets for stand-alone mode and 18-bit
packets for stereoscopy mode.
[…]
In stereoscopic mode, the two sensors run in lock-step,
implying all state machines are in the same state at any given
time. This is ensured by the sensor-pair getting their sys-clks
and sys-resets in the same instance. Configuration writes
through the two-wire serial interface are done in such a way
that both sensors can get their configuration updates at once.
cheers
Christian
We use the 8 bit data bus for the MT9V034. There’s no way to connect two cameras to the OpenMV Cam without an external FPGA in the data path that combines the two images into one.
Designing that type of hardware would be complex. Our software would give you a head start but otherwise it’s a lot of work.
yes, won’t even try that - just would be neat to use the internal feature of the sensor(s) like that.
I personally don’t look forward to see the openmv going stereoscopic-ish. This is not what ‘it’s supposed to do’…
Although, having some basic 3D translate functions would be nice
There’s a some (affordable) other stuff around, like the TeensyCam:
Using 2x MT9V034 in 10Bit parallel mode with an Cortex M4@180Mhz as dedicated controller.
The imagesensor you get for about 9€ each, couple of SMD’s 4€ , teensy about 25€, + pcb 3€ = 50€
Haven’t checked the code if the onchip feature is used, but in principle the solution looks ok.
But, you would still have 11bit raw data to process. In case of the teensycam with usb out, this is supposed to be a raspi or better where you run openCV,TF,…
A double ArduCam could fit your needs as well and it supports a nice bunch of cameras and platforms and no pcb-ing needed.
And last but not least, just use 2 OpenMV cams and the sync pin as externel cams
cheers
The OpenMV cameras look very interesting for what I want to do. I have not purchased one yet but I plan to if it will do what I need.
My goal is to trigger burst images (2-4 images) on each camera (2-4 cameras) through a digital pulse from a master. I assume the burst images can be stored on each STM32. After the burst images are collected I will download the images to the master processor. I would like less than 1 msec timing difference between the various triggered camera images. I realize the Global Shutter camera is better for this but it has lower resolution, so I am also interested in the Global Shutter cameras.
Do you have example programs which I could look at to get started on this task?
Is there an issue with what I want to do?
thanks
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