Abstract: A luminary system is provided. The luminary measurement system includes a processor and a camera. The camera is configured to obtain an object image of an object. The object includes a first luminary and a second luminary. The processor is configured to determine a first position of the first luminary and a second position of the second luminary based on the object image. The processor is configured to determine whether the first position and the second position are correct or not based on standard alignment information.

Abstract: An image sensing device and a control device of an illumination device thereof are provided. The control device includes a control circuit, an operation circuit, and multiple driving signal generators. The control circuit generates multiple control signals. The operation circuit performs a logical operation on the control signals and an image capturing signal to generate multiple operation results. The driving signal generator respectively provides multiple driving signals to the illumination device according to the operation results, and the driving signals respectively have multiple different output powers.

Abstract: An object tracking method includes measuring ambient light by a camera to determine an ambient exposure value on the condition that an illuminating object being off, controlling the illuminating object to be on and configuring a luminance value of the illuminating object according to the ambient exposure value, and tracking the illuminating object based on at least one image captured from the camera by the ambient exposure value.

Abstract: An object tracking method includes measuring ambient light by a camera to determine an ambient exposure value on the condition that an illuminating object being off, controlling the illuminating object to be on and configuring a luminance value of the illuminating object according to the ambient exposure value, and tracking the illuminating object based on at least one image captured from the camera by the ambient exposure value.

Abstract: In a drawing method executed in an electronic device, the electronic device includes a touch screen, a touch controller, a decoder, a main processor, a frame buffer, and a display controller. The main processor initializes a line width, a line color, and a drawing region of the touch screen. The touch controller senses touch points on the touch screen, and generates coordinates of the touch points. The decoder receives the coordinates of the touch points from the touch controller, and updates the frame buffer according to the line width, the line color, the drawing region, and the coordinates of the touch points. The display controller updates a display of the touch screen according to contents in the frame buffer to display a picture.