Image sensor with sampling control system

An image sensor with sampling control system comprising:

• a sensor unit having a number of pixel circuits arranged in matrix;
• a memory unit having a number of memory circuits arranged in matrix, the number of said memory circuits being equal to that of said pixel circuits;
• a first horizontal shift register for writing memory values constituting a pixel read-out pattern into said memory circuits in accordance with a sample selection signal;
• a first vertical shift register for generating a signal for writing said memory values into said memory circuits as well as a signal for reading said memory values out of said memory circuits;
• a second vertical shift register driven in synchronism with said first vertical shift register to generate a signal for reading out pixel values from said pixel circuits as well as a reset signal to said pixels circuits;
• a second horizontal shift register for outputting pixel value or values selected in accordance with the memory values stored in said memory circuits;
• a third horizontal shift register for outputting all pixel values;
• and
• a switch unit for controlling read-out of pixel values from any one of said second and third horizontal shift registers in accordance with the memory values stored in said memory circuits.