How many distinct objects and what are their shapes?

Shown in the figure is the Radon transform of an object. This object is defined on a square. In the figure, the rows correspond to translations and the columns correspond to angles. Sketch the object. The object values are 0 and 1 a. Specify how many distinct objects are in the figure b. Based on the projections, where in the original image is each object? c. Use the different values of the cross-sections to determine the shape of each -150 -100 -50 80 70 60 50 40 30 20 10 50 100 150 100 200 300 e (degrees) Shown in the figure is the Radon transform of an object. This object is defined on a square. In the figure, the rows correspond to translations and the columns correspond to angles. Sketch the object. The object values are 0 and 1 a. Specify how many distinct objects are in the figure b. Based on the projections, where in the original image is each object? c. Use the different values of the cross-sections to determine the shape of each -150 -100 -50 80 70 60 50 40 30 20 10 50 100 150 100 200 300 e (degrees)