Descriptive Essay On Camera

Example of a Research Paper essay on Marketing about:

digital camera / image / video / customer / computer

Essay Topic:

A detailed study of the role of contemporary digital cameras.

Essay Questions:

What is the contemporary definition of a digital camera?

What are the characteristics to use while choosing a digital camera?

What are the most prominent advantages of digital cameras?

Thesis Statement:

Cameras, in their turn have also experienced a rather fast evolution and nowadays everybody has a notion of what a digital camera is and the majority of people use digital cameras.

 

Digital Cameras Essay


1. Introduction. Throughout the ages humanity has always been fascinated by the possibility of “capturing moments” or in other words perpetuating moments of high significance and outstanding beauty. This provided the opportunity to share something that nobody else has seen or perceived. This idea has made a long way from canvas-paintings to using cameras. Cameras, in their turn have also experienced a rather fast evolution and nowadays everybody has a notion of what a digital camera is and the majority of people use digital cameras.


2. What is a digital camera? According to a standard definition a digital camera is “…opposed to a film or video camera, uses an electronic sensor to transform images and video into electronic data”[1]. Years ago people used to possess two different devices in order to take pictures and to make video. The need to spare space and make it more comfortable for people to do both things with higher quality results catalyzed the creation of digital cameras. The multifunctionalism of digital cameras and the combination of several devices in one make it the best possible choice for a modern man. For years a digital camera has been unaffordable for many families, nevertheless, nowadays the great variety of digital cameras of different manufacturers and diverse prices make a digital camera a potential purchase of almost every single family. The formula: price + quality = satisfied customer used by the digital cameras manufacturers is especially reflected in the wide choice of cameras that offer the best quality standards for the price-range they belong to.

3. How to choose a digital camera?

The transition of digital photography from the privilege of rich people to an ordinary home appliance has caused some problems. That is the reason a modern man has a set of questions concerning digital cameras, especially the what’s, why’s and where’s of digital cameras. Nobody wants to make a “miscalculation”! The basic problem in choosing a digital camera is a “guarantee” that the device you are purchasing will “grow old” in couple of month due to a constant improvement and development of the sphere. The only factor that may delay this process of “growing old” is purchasing a device with the price twice or three times higher of the average market price for a digital camera at the moment. If a person chooses a digital camera there are several criterions of a great priority he needs to keep in mind: price of the device, the image resolution of the camera, the capacity of the memory card, presence of a LCD-display, the interface of the camera, its weight and size. The price of a digital camera depends on its quality factors. The resolution of a digital camera, or in other words the “size of a digital image” is measured in pixels. Pixels in their turn are photosensitive elements. It is common knowledge, that the bigger is the amount of pixels indicated in the camera properties the better it is. Therefore, if a high-detailed photo is required, the usage of zoom on a digital camera with small resolution will not give the desired result. In this case a person choosing a digital camera needs to exactly know what it will be used for and to choose it according to its future destination. It is necessary to mention that the resolution of 640"x"480 is the lowest resolution any customer should be orientated to. It is the minimal resolution with witch the purchase of a digital camera still remains reasonable. The lens of the camera or “the zoom properties” mentioned above allows saving a lot on the price of the device but hits the quality of the pictures obtained. The memory card is a very important issue, too. It is much better to choose a better camera with a lesser memory capacity than an overage digital camera with a larger memory capacity. The presence of the LCD-display is no longer a “wish” it is a requirement for any digital camera. It allows to choose the future image, to anticipate it and to delete bad images and therefore to save space.


4. The advantages of digital cameras
Along with some advantages mentioned above there are more to digital cameras than that. It goes without saying that it is possible to examine and sort out the images, create a slide show, a digital photo album, create a presentation on your computer, a ordinary TV or a multimedia projector. A digital camera offers the ability of sending images for printing directly to the printer with a DPOF standard or throughout the USB without using the computer. The images from the digital cameras may be sent throughout the Internet. For instance, it is possible to send images to colleagues, friends or relatives using e-mail. In the era of the constant lack of time this advantages become issues of the highest priority.

5. Affordability and manufacturers

There is a plenty of digital cameras for sale in the price-range from $300 to $9000 and more. What camera would become the best choice? An ordinary digital camera with the price around $300 is suitable for everyday usage. So do not expect any super possibilities from a camera like that. The variety of manufacturers is very wide. Nevertheless it is necessary to mention the most popular brands among the customers. They are: Sony, Canon and Nikon. And some others: Casio, Fuji, HP, Kodak, Konica, Olympus and Pentax. The most popular digital camera nowadays is Sony Cyber Shot DSC-P150.

6. Conclusion

Digital cameras find more and more place in the lives of contemporary people. Due to the comfort and quality of making images they are rightfully displacing ordinary old cameras from the market. After all, this is very simple: take the picture you want, connect the digital camera to your computer and open “the boundless elbowroom” of its opportunities. You may immediately print the images or by means of special programs make the images brighter, add shrill and so on. The quality of the images is much better than on the film cameras. Smart Media Card or Compact Flash memory cards store the images and do not let them to get old. Digital cameras are the right choice of the new millennium

 

Descriptive Camera™, 2012

The Descriptive Camera works a lot like a regular camera—point it at subject and press the shutter button to capture the scene. However, instead of producing an image, this prototype uses crowd sourcing to output a text description of the scene. Modern digital cameras capture gobs of "parsable" metadata about photos such as the camera's settings, the location of the photo, the date, and time, but they don't output any information about the content of the photo. The Descriptive Camera only outputs the metadata about the content.

As we amass an incredible amount of photos, it becomes increasingly difficult to manage our collections. Imagine if descriptive metadata about each photo could be appended to the image on the fly—information about who is in each photo, what they're doing, and their environment could become incredibly useful in being able to search, filter, and cross-reference our photo collections. Of course, we don't yet have the technology that makes this a practical proposition, but the Descriptive Camera uses crowd sourcing to explore these possibilities.

Technology

The technology at the core of the Descriptive Camera is Amazon's Mechanical Turk API. It allows a developer to submit Human Intelligence Tasks (HITs) for workers on the internet to complete. The developer sets the guidelines for each task and designs the interface for the worker to submit their results. The developer also sets the price they're willing to pay for the successful completion of each task. An approval and reputation system ensures that workers are incented to deliver acceptable results. For faster and cheaper results, the camera can also be put into "accomplice mode," where it will send an instant message to any other person. That IM will contain a link to the picture and a form where they can input the description of the image.

The camera itself is powered by the BeagleBone, an embedded Linux platform from Texas Instruments. Attached to the BeagleBone is a USB webcam, a thermal printer from Adafruit, a trio of status LEDs and a shutter button. A series of Python scripts define the interface and bring together all the different parts from capture, processing, error handling, and the printed output. My mrBBIO module is used for GPIO control (the LEDs and the shutter button), and I used open-source command line utilities to communicate with Mechanical Turk. The device connects to the internet via Ethernet and gets power from an external 5 volt source, but I would love to make a another version that's battery operated and uses wireless data. Ideally, The Descriptive Camera would look and feel like a typical digital camera.

Presentation Video

Results

After the shutter button is pressed, the photo is sent to Mechanical Turk for processing and the camera waits for the results. A yellow LED indicates that the results are still "developing" in a nod to film-based photo technology. With a HIT price of $1.25, results are returned typically within 6 minutes and sometimes as fast as 3 minutes. The thermal printer outputs the resulting text in the style of a Polaroid print. Below are a few samples from the Descriptive Camera:

This is a faded picture of a dilapidated building. It seems to be run down and in the need of repirs.

Looks like a cupboard which is ugly and old having name plates on it with a study lamp attached to it.

Corner of a wood floored room with a tool chest, bike, stack of books, box leaning against the wall, an open door with a bag hanging off the doorknob, and a pair of closed double doors with cables hanging on the handles.

Acknowledgements

  • Philip Heron's fswebcam was the easiest way I found to capture images from a USB webcam on the BeagleBone.
  • Without Dan Watts' writeup on how to get UART serial working on BeagleBone using Python, I would've found it very difficult to get the printer working.
  • Nuno Alves wrote an indispensable tutorial which helped me set my code up to run as a system service when the BeagleBone boots.
  • Dan O'Sullivan and my fellow students in Computational Cameras, who provided much-needed conceptual feedback for the project.

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