EYE-TRACKING DATABASE FOR A SET OF STANDARD
VIDEO SEQUENCES
This correspondence describes a publicly available database of eye
-tracking data, collected on a set of standard video sequences that are
frequently used in video compression, processing, and tr ansmission
simulations.
A unique feature of this database is that it contains eye -tracking data
for both the first and second viewings of the sequence. We have made
available the uncompressed video sequences and the raw eye
-tracking data for each sequence, along with different visualizations of
the data and a preliminary analysis based on two well -known visual
attention models.
Abstract of the Project
Proposed System Advantages
Architecture Diagram
Block Diagram
Explanation of Block Diagram
Components usage Details
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EMBEDDED HARDWARE REQUIREMENTS
Microcontroller, Atmel 89c51 / 52
Embedded Active components
Embedded Passive components
Electromechanical components
Electrical components
SOFTWARE REQUIREMENTS
Assembly Language
Embedded C
KEIL Compiler
HARDWARE REQUIREMENTS
If PC is used, for Independent Kits, this will not applicable
System
: Pentium Dual Core Processor + Board
RAM
: 1 GB
Hard Disk
: 80 GB
Monitor
: 17” Color Monitor
Mouse
: Logitech Mouse
Keyboard
: Multimedia Keyboard
SOFTWARE REQUIREMENTS
Operating System :
Windows XP
Front End : Visual Basic / Java
Database
: Access
ABOUT EMBEDDED SYSTEMS
An embedded system is a computer system designed for specific control functions within a larger system, often with real-time computing constraints. It is embedded as part of a complete device often including hardware and mechanical parts. By contrast, a general -purpose computer, such as a personal computer (PC), is designed to be flexible and to meet a wide range of end -user needs. Embedded systems control many devices in common use today
Embedded systems contain processing cores that are typically either microcontrollers or digital signal processors. The key characteristic, however, is being dedicated to handle a particular task. Since the embedded system is dedi cated to specific tasks, design engineers can optimize it to reduce the size and cost of the product and increase the reliability and performance. Embedded systems are designed to do some specific task, rather than be a general -purpose computer for multiple tasks. Some also have real-time performance constraints that must be met, for reasons such as safety and usability
Embedded systems are not always standalone devices. Many embedded systems consist of small, computerized parts within a larger device that serves a more general purpose. The program instructions written for embedded systems are referred to as firmware, and are stored in read-only memory or Flash memory chips. They run with limited computer hardware resources: little memory, small or non-existent keyboard or screen.
PERIPHERALS
Embedded Systems talk with the outside world via peripherals, such as:
Serial Communication Interfaces (SCI): RS -232, RS-422, RS-485 etc.
Synchronous Serial Communication Interface: I2C, SPI, SSC and ESSI (Enhanced Synchronous Serial Interface)
Universal Serial Bus (USB)
Multi Media Cards (SD Cards, Compact Flash etc.) Networks: Ethernet, LonWorks, etc.
Fieldbuses: CAN-Bus, LIN-Bus, PROFIBUS, etc.
Timers: PLL(s), Capture/Compare and Time Processing Units Discrete IO: aka General Purpose Input/Output (GPIO) Analog to Digital/Digital to Analog (ADC/DAC)
MICROCONTROLLERS
A microcontroller (sometimes abbreviated µC, uC or MCU) is a small computer on a single integrated circuit containing a processor core, memory, and programmable input/output peripherals. Program memory in the form of NOR flash or OTP ROM is also often included on chip, as well as a typically small amount of RAM.
Microcontrollers are designed for embedded applications, in contrast to the microprocessors used in personal computers or other general purpose applications.
Microcontrollers are used in automatically controlled products and devices, such as automobile engine control systems, implantable m edical devices, remote controls, office machines, appliances, power tools, toys and other embedded systems. By reducing the size and cost compared to a design that uses a separate microprocessor, memory, and input/output devices, microcontrollers make it economical to digitally control even more devices and processes
ATMEL 89C51 MICROCONTROLLERS
The Atmel AT89 series is an Intel-8051-compatible family of 8 bit microcontrollers (µCs) manufactured by the Atmel Corporation. Based on the Intel 8051 core, the AT89 series remains very popular as general purpose microcontrollers, due to their industry standard instruction set, and low unit cost. This allows a great amount of legacy code to be reused without modification in new applications
The AT89C51 is a low-power, high-performance CMOS 8-bit microcomputer with 4Kbytes of Flash programmable and erasable read only memory (PEROM). The device is manufactured using Atmel’s high-density nonvolatile memory technology and is compatible with the industry-standard MCS-51 instruction set and pin out.
The on-chip Flash allows the program memory to be reprogrammed in -system or by a conventional nonvolatile memory programmer. By combining a versatile 8 -bit CPU with Flash on a monolithic chip, the Atmel AT89C51 is a powerful microcomputer, which provides a highly -flexible and cost-effective applications solution to many embedded control
