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SCERT KERALA STD VII Information and Communications Technology (ICT) - Chapter 09 Computer Vision - Questions and Answers | Teachers Handbook

Kerala Syllabus Class 7 Information and Communications Technology (ICT): Chapter 09 Computer Vision - Questions and Answers

Study Notes for Class 7th Information and Communications Technology (ICT) - കമ്പ്യൂട്ടർ വിഷൻ | Text Books Solution ICT (English Medium) Chapter 09 Computer Vision. 
ഈ യൂണിറ്റിന്റെ Teachers Handbook ലിങ്ക് ഈ പേജിന്റെ അവസാന ഭാഗത്തു നൽകിയിട്ടുണ്ട്. 
പഠന സഹായികൾ അയക്കാൻ താല്പര്യമുള്ളവർ ഈ നമ്പറിൽ വാട്സാപ്പ് ചെയ്യുക: 9497346250. പുതിയ അപ്‌ഡേറ്റുകൾക്കായി ഞങ്ങളുടെ Telegram Channel ൽ ജോയിൻ ചെയ്യുക.

ഈ ബ്ലോഗ് അഡ്‌മിൻറെ രേഖാമൂലമുള്ള അനുമതിയില്ലാതെ ഈ ബ്ലോഗിൽ നൽകിയിരിക്കുന്ന ചോദ്യോത്തരങ്ങൾ, ഇതേരീതിയിലോ പി.ഡി.എഫ് രൂപത്തിലോ, മറ്റേതെങ്കിലും ഡിജിറ്റലോ, പ്രിന്റഡ് ഉൾപ്പെടെയുള്ള ഏതെങ്കിലും രൂപങ്ങളിലേക്കോ മാറ്റി മറ്റൊരു വെബ്സൈറ്റിലോ, ബ്ലോഗിലോ, യുട്യൂബ്, സോഷ്യൽ മീഡിയാ ഗ്രൂപ്പുകളിലോ ഉൾപ്പെടെ ഒരിടത്തും പ്രചരിപ്പിക്കാൻ പാടില്ലാത്തതാകുന്നു.

Std 7: ICT 09: Computer Vision - Questions and Answers
♦ Artificial intelligence (AI)
The term Artificial Intelligence was coined in 1956 by an American computer scientist called John Mac- Carthy.

♦ Block Programming
Block programming is a method of creating a computer program using pre-prepared code. In this kind of programming, code is given as separate blocks which can be dragged and placed as required to make a program. 

♦ PictoBlox 
There is a piece of software based on Scratch called PictoBlox -an improved software program which enables us to make computer programs based on AI. 
♦ Some Facilities in PictoBlox
• It has block programming, as in scratch.
• It has the facility to write programs with Python. 
• It has extensions to do activities of Al and Robotics. 

♦ Code Block related to face detection in the Picto- Blox.

♦ Recognising Facial Expressions
• We have to keep the computer camera on. 
• The picture captured by the camera is to be analysed.
• Once the face is detected in the picture, based on the previously analysed faces, its expression must be recognised.
• There must be a reaction in accordance with the recognised expression.
•The activity has to be repeated.

♦ Costumes for Expressions
Using PictoBlox, we can give different costumes to a sprite for detectable expressions. 

♦ Adding new costumes in PictoBlox
• Delete the existing sprite and add a new sprite (The first costume) through upload sprite.
• Select the tab, costumes
• Select 'Choose a Costume→ Upload Costume' at the left bottom.
• Add the other costumes for the sprite selected from the computer.

♦ Preparing the program
The program that displays smileys in keeping with the expressions Caught in the Camera.
♦ Let's Save
To save your work in PictoBlox, click on the save option in file menu, and type in the window the file name and click on save.

♦ Assessment
1. You prepared the computer vision program that reacts after detecting facial expressions. List some situations where computer vision can be used.
Face unlock in mobile phones.
• Face Unlock in mobile phones 
• ----------------------------------- 
• ----------------------------------    
• -----------------------------------
Answers: 
• Face unlock in mobile phones
• Self-driving cars
• Robotic Automation 
• Agricultural monitoring

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