High definition camera and method

A high definition (HD) camera, comprising:

• a complementary metal oxide semiconductor (CMOS) sensor of high frame rate;
• the high frame rate CMOS sensor is configured to capture images, receive light provided by an auxiliary light source controlled by at least one pulse wave signal to turn on and off according to a duty cycle, provide the light to N consecutive frames with an interval of M consecutive frames in the captured images when the auxiliary light source is on;
• the M is 0 or a positive integer, the N is a positive integer;
• wherein
• the light is provided to a region of interest in each frame;
• the CMOS sensor is configured to receive the light provided by one auxiliary light source to the region of interest in each frame;
• or receive the light provided by P auxiliary light sources which switch on in turn to provide the light to the region of interest in each frame;
• or receive the light provided by an auxiliary light source having P sub light sources which switch on in turn to provide the light to the region of interest in each frame, wherein the P is an integer larger than 1;
• the HD camera further comprising
• a driving module,
• the driving module is configured to:
• turn on a first auxiliary light source in two auxiliary light sources which turn on successively which turn on successively using a first sine wave pulse signal, and turn on a second auxiliary light source in the two auxiliary light sources which turn on successively using a second sine wave pulse signal when there is a first pre-set length of time before the first sine wave pulse signal ends;
• or
• to turn on a first sub light source in two sub light sources which turn on successively using the first sine wave pulse signal, and turn on a second sub light source in the two turned on sub light sources using the second sine wave pulse signal when there is a first pre-set length of time before the first sine wave pulse signal ends;
• and
• the driving module is configured to:
• generate a first square wave pulse signal, convert the first square wave pulse signal into the first sine wave pulse signal, and turn on the first auxiliary light source using the first sine wave pulse signal;
• generate a second square wave pulse signal after a second pre-set length of time since the first square wave pulse signal ended, convert the second square wave pulse signal into the second sine wave pulse signal, and turn on the second auxiliary light source using the second sine wave pulse signal;
• a width of the first sine wave pulse signal is a sum of the width of the first square wave pulse signal and the first pre-set length of time and the second pre-set length of time;
• or
• generate a first square wave pulse signal, convert the first square wave pulse signal into the first sine wave pulse signal, and turn on the first sub light source using the first sine wave pulse signal;
• generate a second square wave pulse signal after a second pre-set length of time since the first square wave pulse signal ended, convert the second square wave pulse signal into the second sine wave pulse signal, and turn on the second sub light source using the second sine wave pulse signal;
• the width of the first sine wave pulse signal is the sum of the width of the first square wave pulse signal and the first pre-set length of time and the second pre-set length of time.

A method of a high definition (HD) camera, comprising:

• capturing plural frame images using a complementary metal oxide semiconductor (CMOS) sensor of high frame rate;
• providing light of P auxiliary light sources to N consecutive frame images of said plural frame images with an interval of M consecutive frame images;
• wherein the P is a positive integer larger than 1, M is 0 or a positive integer, the N is a positive integer;
• controlling the P auxiliary light source to turn on and off successively using P pulse wave signals;
• wherein controlling the P auxiliary light source to turn on and off successively using P pulse wave signals comprises
• generating a first square wave pulse signal, converting the first square wave pulse signal into a first sine wave pulse signal, and turning on a first auxiliary light source of the P auxiliary light source using the first sine wave pulse signal, wherein there is a first pre-set length of time before the first square wave pulse signal ends;
• generating a second square wave pulse signal after a second pre-set length of time since the first square wave pulse signal ended, converting the second square wave pulse signal into a second sine wave pulse signal, and turning on a second auxiliary light source of the P auxiliary light source using the second sine wave pulse signal;
• a width of the first sine wave pulse signal is the sum of a width of the first square wave pulse signal and the first pre-set length of time and the second pre-set length of time.