Abstract: A method of taking pictures for generating three-dimensional image data is disclosed. The method includes continuously illuminating a target object with an environmental light; using an image sensor to receive the light reflected from the target object to generate a first electrical image signal; illuminating the target object with an active light generated from an active light source unit during the period of exposure by the environmental light; using the same image sensor to receive another reflected light to generate a second electrical image signal; using an image processing unit to receive the first and second electrical image signals, convert the first electrical image signal to a two-dimensional image data, and subtract the first electrical image signal from the second electrical image signal to generate three-dimensional depth data; and combining the two-dimensional image data and the three-dimensional depth data to generate the three-dimensional image data.

Abstract: A depth-photographing method of detecting human face or head includes the steps of using the specific light to illuminate the target under an environmental light, receiving and detecting the reflected light from the target with the detector, generating first depth detecting information corresponding to the depth of the target, turning off the specific light, detecting another reflected light from the target, generating second depth detecting information corresponding to the depth of the target, performing the detection/calculation process based on the first and second depth detecting information to generate the appearance of the target, determining if the appearance of the target represents a human face or head, and if yes, generating depth-photographing detection information used to cancel a lock state, thereby avoiding unintentionally entering power saving (or standby mode), speeding up entering the desired power saving or dynamically changing/adjusting the display content.

Abstract: A depth-photographing method of detecting human face or head includes the steps of using the specific light to illuminate the target under an environmental light, receiving and detecting the reflected light from the target with the detector, generating first depth detecting information corresponding to the depth of the target, turning off the specific light, detecting another reflected light from the target, generating second depth detecting information corresponding to the depth of the target, performing the detection/calculation process based on the first and second depth detecting information to generate the appearance of the target, determining if the appearance of the target represents a human face or head, and if yes, generating depth-photographing detection information used to cancel a lock state, thereby avoiding unintentionally entering power saving (or standby mode), speeding up entering the desired power saving or dynamically changing/adjusting the display content.

Abstract: A method of taking pictures for generating three-dimensional image data is disclosed. The method includes continuously illuminating a target object with an environmental light; using an image sensor to receive the light reflected from the target object to generate a first electrical image signal; illuminating the target object with an active light generated from an active light source unit during the period of exposure by the environmental light; using the same image sensor to receive another reflected light to generate a second electrical image signal; using an image processing unit to receive the first and second electrical image signals, convert the first electrical image signal to a two-dimensional image data, and subtract the first electrical image signal from the second electrical image signal to generate three-dimensional depth data; and combining the two-dimensional image data and the three-dimensional depth data to generate the three-dimensional image data.