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Human Being

                                                                                                     Lamp post

                                                                                                     Trees

                                                                                                     Cars



                 Step 2: Data Augmentation

                 Data  augmentation  is  the  process  of  increasing  the  amount
                 and diversity of data. We do not collect new data, rather we
                 transform the already present data. Data augmentation means
                 increasing  the  amount  of  data  by  adding  copies  of  existing
                 data  with  small  changes.  The  image  given  here  does  not
                 change, but we get data on the image by changing different
                 parameters like colour, rotation, flipping and brightness. New
                 data is added by slightly changing the existing data.
                 In the above example:

                 ●  We apply flipping and rotation transformation to create variations of the original images.

                 ●   We also simulate occlusions such as objects partially blocking the view to train the model to handle obstructed
                    scenarios.
                 Step 3: Data Generation
                 Data generation refers to generating or recording data using sensors. Recording temperature readings of a building
                 is an example of data generation. Recorded data is stored in a computer in a suitable form.












                 In the above example, of self-driving car. Data acquisition is done for creating fake driving scenarios with different
                 road conditions, traffic patterns, weather, and lighting to cover many possible situations.

                 Sources of Data Acquisition
                 Data can be acquired from various sources, classified as either primary or secondary.


                 Primary Data Sources
                 The data generated from the experiment is an example of primary data. Some of the sources for primary data
                 include surveys, interviews, experiments, etc. Here is an Excel sheet showing the data collected for students of a class.












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