Assume that you have successfully isolated each card, describe three descriptors that can be used to differentiate the cards. Your description may consist of the following: Condition(s) that must be fulfilled before applying the descriptor. How to find or extract the descriptor. Why the descriptor can help to differentiate certain cards. The types of cards it can or cannot differentiate. • Example(s) that can support your description.

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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You are trying to build an autonomous robot that can play different card games
based on the French deck. But before building the robot, you need to develop an
approach to recognise all the cards in a French deck.
A French deck consists of 52 cards, which can be categorised into four groups based
on their suits: spades (4), hearts (♥), diamonds (+), and clubs (+). Each suit consists
numbers from 1 to 10, and three court cards: jack, queen, and king.
You had lay down all the cards on a white colour desktop, arranged them nicely
before snapping a photo. After some pre-processing, the photo that you obtained is
shown in Figure 2.
A>
<>
>>
.
**
←
•N
ve
→
→
>
>
>
◆N
←N
◆
.
•
►
H
Figure 2
Assume that you have successfully isolated each card, describe
three descriptors that can be used to differentiate the cards. Your
description may consist of the following:
• Condition(s) that must be fulfilled before applying the descriptor.
• How to find or extract the descriptor.
Why the descriptor can help to differentiate certain cards.
The types of cards it can or cannot differentiate.
• Example(s) that can support your description.
Also, explain if the descriptors your described can still be adopted
if the card is rotated by 45 degrees.
Transcribed Image Text:You are trying to build an autonomous robot that can play different card games based on the French deck. But before building the robot, you need to develop an approach to recognise all the cards in a French deck. A French deck consists of 52 cards, which can be categorised into four groups based on their suits: spades (4), hearts (♥), diamonds (+), and clubs (+). Each suit consists numbers from 1 to 10, and three court cards: jack, queen, and king. You had lay down all the cards on a white colour desktop, arranged them nicely before snapping a photo. After some pre-processing, the photo that you obtained is shown in Figure 2. A> <> >> . ** ← •N ve → → > > > ◆N ←N ◆ . • ► H Figure 2 Assume that you have successfully isolated each card, describe three descriptors that can be used to differentiate the cards. Your description may consist of the following: • Condition(s) that must be fulfilled before applying the descriptor. • How to find or extract the descriptor. Why the descriptor can help to differentiate certain cards. The types of cards it can or cannot differentiate. • Example(s) that can support your description. Also, explain if the descriptors your described can still be adopted if the card is rotated by 45 degrees.
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