Smart Grader Supervisor Hussam A Halim Students Saja

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Smart Grader Supervisor: Hussam A. Halim Students: Saja Abu-Baker Suha Awartani Shahad Abo-Romoh

Smart Grader Supervisor: Hussam A. Halim Students: Saja Abu-Baker Suha Awartani Shahad Abo-Romoh

Content • • • Introduction What is smart grader? What does smart grader do?

Content • • • Introduction What is smart grader? What does smart grader do? How smart grader is built? Android studio Open. CV Library Advantages and disadvantages of Open. CV. SQLite Green. DAO Open. CV Algorithm System Diagrams Demo.

Introduction ▫ With the technological development in different fields in life, it’s necessary to

Introduction ▫ With the technological development in different fields in life, it’s necessary to employ this technology in education. ▫ We propose “Smart Grader”.

What is “Smart Grader”? • It is an Android application that is used by

What is “Smart Grader”? • It is an Android application that is used by teachers to help them grade and store multiplechoice questions using their phone’s camera in an efficient and simple way, instead of using old fashion ways.

What does “Smart Grader” do? 1. 2. 3. 4. 5. Create Classes and quizzes.

What does “Smart Grader” do? 1. 2. 3. 4. 5. Create Classes and quizzes. Add students and questions. Correct students’ papers by camera. Save students’ grades in database. Give statistics graphically by charts for each quiz and for each question.

How “Smart grader” is built? • We used: 1. Android Studio for interface. 2.

How “Smart grader” is built? • We used: 1. Android Studio for interface. 2. Open. CV for image processing. 3. SQLite for database. 4. Green DAO for enhancing the performance of database operations.

Android Studio • We used tabbed activity instead of buttons to reduce moving between

Android Studio • We used tabbed activity instead of buttons to reduce moving between screens. • Tabbed interfaces are more user-friendly than any other interfaces. • Each tab shows all related information from other tabs so that the user does not keep moving back and forth between tabs. • Main tabs are : classes, quizzes and students.

Open. CV Library • Open. CV exposes almost all of its functionality to Java

Open. CV Library • Open. CV exposes almost all of its functionality to Java (including camera). • It has C++, C, Python, Java and MATLAB interfaces. • You simply add a reference to the Open. CV, import its classes and move forward.

Advantages and disadvantages of Open. CV • Advantages: 1. Fast ramp-up, the simplest way

Advantages and disadvantages of Open. CV • Advantages: 1. Fast ramp-up, the simplest way to develop for Android with Open. CV. 2. Easy development in a language with garbage collection. • Disadvantages: 1. Complex CV logic (with many calls to Open. CV) will work slowly because of additional cost of JNI calls.

SQLite • SQLite is an Open Source database. • SQLite supports standard relational database.

SQLite • SQLite is an Open Source database. • SQLite supports standard relational database. • SQLite has a small footprint of about < 500 kb with all its features. • Does not need a separate server. • Disadvantage : not secure.

Green DAO • green. DAO is an open source Android ORM(object relational mapping). •

Green DAO • green. DAO is an open source Android ORM(object relational mapping). • It makes development for SQLite databases easy and fast. • No need to deal with low-level database. • It maps Java objects to database tables.

Green DAO (cont. ) • Uses Sql. Cipher that provides transparent 256 -bit AES

Green DAO (cont. ) • Uses Sql. Cipher that provides transparent 256 -bit AES encryption of database files. • Small library size ( <1000 kb ).

Open. CV Algorithm • Step 1: Perform image preprocessing to make the image black

Open. CV Algorithm • Step 1: Perform image preprocessing to make the image black & white (binarization).

Open. CV Algorithm (Cont. ) • Step 2: Use hough transform to find the

Open. CV Algorithm (Cont. ) • Step 2: Use hough transform to find the lines in the image.

Open. CV Algorithm (Cont. ) • Step 3: Find point of intersection of lines

Open. CV Algorithm (Cont. ) • Step 3: Find point of intersection of lines to form the quadrilateral.

Open. CV Algorithm (Cont. ) • Step 4: Apply a minimum area rectangle for

Open. CV Algorithm (Cont. ) • Step 4: Apply a minimum area rectangle for extracting the region and cropping it

Open. CV Algorithm (Cont. ) • Step 4(cont. ) : Apply perspective transform.

Open. CV Algorithm (Cont. ) • Step 4(cont. ) : Apply perspective transform.

Open. CV Algorithm (Cont. ) • Step 5: Use hough transform to find the

Open. CV Algorithm (Cont. ) • Step 5: Use hough transform to find the circles in the image.

Open. CV Algorithm (Cont. ) • Step 6: Sort circles into rows and columns.

Open. CV Algorithm (Cont. ) • Step 6: Sort circles into rows and columns. • Step 7: Find circles with area 30% or denser and designate these as “filled in”.

Use Case Diagram

Use Case Diagram

Class Diagram

Class Diagram

ER Diagram

ER Diagram

DEMO. • Now, we will demonstrate the program.

DEMO. • Now, we will demonstrate the program.

Smart Grader Supervisor: Hussam A. Halim Students: Saja Abu-Baker Suha Awartani Shahad Abo-Romoh

Smart Grader Supervisor: Hussam A. Halim Students: Saja Abu-Baker Suha Awartani Shahad Abo-Romoh

WELCOM E Halim Chittagong Abdul Halim Assistant TeacherWELCOM E Halim Chittagong Abdul Halim Assistant Teacher
Oleh Muhammad Halim Maimun SE MM MUHAMMAD HALIMOleh Muhammad Halim Maimun SE MM MUHAMMAD HALIM
ASSESSMENT OF READING ELT SUPERVISOR ABDUL HALIM HAMEDASSESSMENT OF READING ELT SUPERVISOR ABDUL HALIM HAMED
DEAL AGGREGATOR Supervisor Supervisor Trn nh Tr StudentsDEAL AGGREGATOR Supervisor Supervisor Trn nh Tr Students
Capstone Project Smart Menu Solution Students 60082 SupervisorCapstone Project Smart Menu Solution Students 60082 Supervisor
Smart Windows Students Ghadeer Bdair Anwar sholi SupervisorSmart Windows Students Ghadeer Bdair Anwar sholi Supervisor
Are you as smart as an grader thAre you as smart as an grader th
Voice Annotation Students Enas Asmar Farah Zubdeh SajaVoice Annotation Students Enas Asmar Farah Zubdeh Saja
SBPD Asharf Ali Khaled ELT Supervisor ELT SupervisorSBPD Asharf Ali Khaled ELT Supervisor ELT Supervisor
MODULE 3 Policies Procedures Supervisor Responsibilities 2 SupervisorMODULE 3 Policies Procedures Supervisor Responsibilities 2 Supervisor
Supervisor Development and SelfEfficacy Factors Influencing Supervisor CompetenceSupervisor Development and SelfEfficacy Factors Influencing Supervisor Competence
De Supervisor TAB Que ayuda a un SupervisorDe Supervisor TAB Que ayuda a un Supervisor
Field Supervisor First Supervisor Outline 1 2 3Field Supervisor First Supervisor Outline 1 2 3
Supervisor Safety Training Logging Industry Page 1 SupervisorSupervisor Safety Training Logging Industry Page 1 Supervisor
Supervisor Learning Community Supervisor Learning Community By theSupervisor Learning Community Supervisor Learning Community By the
UNDERSTANDING SELF AS SUPERVISOR APS Supervisor Core TrainingUNDERSTANDING SELF AS SUPERVISOR APS Supervisor Core Training
Agenda Supervisor 6 T Supervisor 8 LE CatalystAgenda Supervisor 6 T Supervisor 8 LE Catalyst
SBPD Asharf Ali Khaled ELT Supervisor ELT SupervisorSBPD Asharf Ali Khaled ELT Supervisor ELT Supervisor
UNDERSTANDING SELF AS SUPERVISOR APS Supervisor Core TrainingUNDERSTANDING SELF AS SUPERVISOR APS Supervisor Core Training
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PAPEL DEL SUPERVISOR funciones La funcin del supervisorPAPEL DEL SUPERVISOR funciones La funcin del supervisor
Readout Supervisor Outline l Readout Supervisor role andReadout Supervisor Outline l Readout Supervisor role and
HDR Supervisor Induction Supervisor Framework and Roles ProfessorHDR Supervisor Induction Supervisor Framework and Roles Professor