Image scanner

1. Introduction This is the first in a series of articles on using Forth to interact with the real world. We will explore how to control motors of various types (such as servomotors and stepper motors), switch power to devices, and sense the environment. Each article will present a project that can be used to demonstrate the ideas we are going to discuss. In this first article, I want to lay the foundation for the future columns and discuss the use of the PC parallel port to control stepper motors. We will adopt the fantasy that we are working on some microprocessor-based control application and will be using the PC parallel port as a proxy for the digital I/O channels on our controller. To the extent possible, the code will be written in high level (so that we can illustrate the principles clearly), and will be in ANS Forth. 2. The PC Parallel Port First, if you haven't already, go to your back issues of Forth Dimensions and find Ken Merk's article "Forth in Control," (FD XVII/2). In that article, Ken talks about using the PC parallel port for eight digital outputs. We will be expanding on that and use some of those other pins to get input as well as to provide output. A parallel port on the PC is really three address locations which, for conventional use, could be called #Data, #Command, and #Status. The port #Data is at the base address of the parallel port, #Status is at the base address plus one, and #Command is at base plus two. The base address…

The type of scanner is a modality-dependent feature. For example, MRIs and CT scanners are differ in size and functions. In medical ultrasounds, patients are not required to enter a scanner to be tested for CAD. These intrinsic modality-dependent differences were therefore considered as important test-specific attributes. In a DCE on scanning modalities to diagnose focal liver lesions, the type of scanner used was studied and shown to influence patient preferences for diagnostic tests (Whitty et…

Medical Center uses an electronic health record but that does not mean they don’t have to scan/assemble loose paper into EPIC. There are three steps to ensure the quality and efficiency of indexing and scanning forms and loose records into EPIC. The first step is to scan these loose forms. Most of the hospital scans their own records for the most part but for example HIM scans the ERs records and place them in EPIC. On February 9th, Devonn and I got a chance to scan records from OB and a few…

PhotoScan to correctly align them and show details. When zooming in on the cliff, the quality of the images is very good and one can point out geologic features such as rock layers, faulting (Fig. 3), erosional paths (Fig. 4), areas of possible landslides (Fig. 4) and sea caves (Figure 5). Field Mapping Four faults were mapped while walking alongside the cliffs after flying the drones. Dips were 42 to the S, 83 to the N, 70 to the S, and 44 to the south. If more faults were to be mapped, a…

This is evident when viewing John Everett Millais’s Ophelia. Photography also impacted people’s everyday lives. According to Jonathan Crary, to understand the photography effect, “one must see it as a crucial component of a new cultural economy of value and exchange” (Techniques of the Observer). The introduction of photography initiated many fundamental changes in society that had a domino effect. For example, the invention and development of photography greatly impacted the methods through…

talking about the rhetorical aspect of images, people are usually unaware of the potential power that a photograph has to convince someone. However, images such as those of veterans meeting their relatives in tears use emotional appeal to convince their viewers so those viewers are far more likely to agree with the message behind the photo. What makes those images so powerful? And why does it matter that those images have such power? While photographs may seem harmless, it can be used to trick…

This image shows Mother Mary talking to her Mother St.Anne. I love this image because as an religious kid, this photograph demonstrates my love for my religion. The quality I like best about this photo is how I edited it. I loved the way I kept the background the same yet I lighten up Mary and St.Anne. The one and only thing I would do differently would be to experiment with the contrast and the brightness a little more or even try this photo in black and white. I had no trouble at all taking…

Richard Learoyd was born in England in 1966 and he is currently living and working in London. He’s method is camera Obscura. He creates life size images in he’s own built camera and makes unique images. Flamingo 3 is a really beautiful photograph, with a soft and strong view. The colors are so bright. The concept of the image, from my point of view, a flamingo caught from freedom. To be honest, at the beginning I didn’t see that the flamingo was dead, and until this day, I still choose to not…

The first aspect that can be analyzed is the framing of the picture. Looking at the picture it is clear that the camera was pointing down and the photographer was above me. This raises the question, “How did I get down to the waterfall?” The viewer may think I am standing off a pathway somewhere or may think I actually hiked into a remote area. The element of lighting and color is also important to analyze.The image photographed is bright implying that it was taken in the middle of the day. All…

significance for people to try and isolate some meaning out of the artistic features. Apparently, analyzing the images proves the only way to extract meaning from these pictures some of which become complex to understand. However, close view of the pictures allows a person to isolate its subtle…