Control apparatus, control method, program, and electronic device system that provide low power consumption

Abstract

The present technology relates to a control apparatus, a control method, a program, and an electronic device system that enables achievement of low power consumption. The presence or absence of a preset, predetermined subject is detected from an image having a low resolution output by an image sensor in a low power consumption mode, the image sensor including, as operation modes, the low power consumption mode in which the image having the low resolution is output and a normal mode in which an image having a high resolution as compared with the image having the low resolution is output. Then, in a case where the presence of the predetermined subject is detected, the operation mode of the image sensor is set to the normal mode, and the image sensor outputs the image having the high resolution. The present technology may be applied, for example, to control of the image sensor.

1 . A control apparatus for an image sensor, comprising:
 processing circuitry configured to:   operate in a sleep state when detected illuminance is less than a threshold value;   set an operation mode of the image sensor directly from the sleep state to a low power consumption mode when the detected illuminance is equal to or greater than the threshold value; and   set the operation mode of the image sensor from the low power consumption mode to a normal mode based on detection of a predetermined subject in an image obtained by the image sensor in the low power consumption mode.   
     
     
         2 . The control apparatus according to  claim 1 , wherein an image having low resolution is output in the low power consumption mode of the image sensor and an image having high resolution is output in the normal mode of the image sensor. 
     
     
         3 . The control apparatus according to  claim 2 , wherein the processing circuitry is configured to cause the image sensor to output the image having high resolution based on detection of the predetermined subject in the image having low resolution. 
     
     
         4 . The control apparatus according to  claim 2 ,
 wherein the processing circuitry is configured to perform authentication using the image having high resolution.   
     
     
         5 . The control apparatus according to  claim 2 ,
 wherein the processing circuitry is configured to record the image having high resolution.   
     
     
         6 . The control apparatus according to  claim 2 , wherein the processing circuitry is configured to detect a characteristic shape of the predetermined subject in the image having low resolution. 
     
     
         7 . The control apparatus according to  claim 2 , wherein the processing circuitry is configured to detect the predetermined subject in a predetermined area of the image having low resolution. 
     
     
         8 . A control method for an image sensor, comprising:
 operating in a sleep state when detected illuminance is less than a threshold value;   setting an operation mode of the image sensor directly from the sleep state to a low power consumption mode when the detected illuminance is equal to or greater than the threshold value; and   setting the operation mode of the image sensor from the low power consumption mode to a normal mode based on detection of a predetermined subject in an image obtained by the image sensor in the low power consumption mode.   
     
     
         9 . The control method according to  claim 8 , wherein an image having low resolution is output in the low power consumption mode of the image sensor and an image having high resolution is output in the normal mode of the image sensor. 
     
     
         10 . The control method according to  claim 9 , wherein the image sensor is caused to output the image having high resolution based on detection of the predetermined subject in the image having low resolution. 
     
     
         11 . The control method according to  claim 9 , further comprising performing authentication using the image having the high resolution. 
     
     
         12 . The control method according to  claim 9 , further comprising recording the image having high resolution. 
     
     
         13 . The control method according to  claim 9 , further comprising detecting a characteristic shape of the predetermined subject in the image having low resolution. 
     
     
         14 . The control method according to  claim 9 , further comprising detecting the predetermined subject in a predetermined area of the image having low resolution. 
     
     
         15 . A non-transitory computer readable medium storing instructions that, when executed by processing circuitry, perform a control method for an image sensor, comprising:
 operating in a sleep state when detected illuminance is less than a threshold value;   setting an operation mode of the image sensor directly from the sleep state to a low power consumption mode when the detected illuminance is equal to or greater than the threshold value; and   setting the operation mode of the image sensor from the low power consumption mode to a normal mode based on detection of a predetermined subject in an image obtained by the image sensor in the low power consumption mode.   
     
     
         16 . An electronic device system comprising:
 an image sensor; and   a control unit that controls the image sensor,   the control unit including processing circuitry configured to:   operate in a sleep state when detected illuminance is less than a threshold value;   set an operation mode of the image sensor directly from the sleep state to a low power consumption mode when the detected illuminance is equal to or greater than the threshold value; and   set the operation mode of the image sensor from the low power consumption mode to a normal mode based on detection of a predetermined subject in an image obtained by the image sensor in the low power consumption mode.