Abstract: A photographing device includes a main body, a first video capturing unit, a second video capturing unit and a rotatable electrical connection portion. The first video capturing unit is disposed on the main body, a center of a first video capturing range of the first video capturing unit is located on a first axis. The second video capturing unit is rotatable about the first axis to be pivoted on the main body, the second video capturing unit and the first axis are separated by a distance. A second video capturing range of the second video capturing unit overlaps the first axis. The rotatable electrical connection portion includes a first and a second connection component pivoted and connected to each other. The second video capturing unit is disposed on and connected to the first connection component. The second connection component is disposed on and connected to the main body.

Abstract: A photographing device includes a main body, a first video capturing unit, a second video capturing unit and a rotatable electrical connection portion. The first video capturing unit is disposed on the main body, a center of a first video capturing range of the first video capturing unit is located on a first axis. The second video capturing unit is rotatable about the first axis to be pivoted on the main body, the second video capturing unit and the first axis are separated by a distance. A second video capturing range of the second video capturing unit overlaps the first axis. The rotatable electrical connection portion includes a first and a second connection component pivoted and connected to each other. The second video capturing unit is disposed on and connected to the first connection component. The second connection component is disposed on and connected to the main body.

Abstract: A photographing device includes a main body, a first video capturing unit, a second video capturing unit and a rotatable electrical connection portion. The first video capturing unit is disposed on the main body, a center of a first video capturing range of the first video capturing unit is located on a first axis. The second video capturing unit is rotatable about the first axis to be pivoted on the main body, the second video capturing unit and the first axis are separated by a distance. A second video capturing range of the second video capturing unit overlaps the first axis. The rotatable electrical connection portion includes a first and a second connection component pivoted and connected to each other. The second video capturing unit is disposed on and connected to the first connection component. The second connection component is disposed on and connected to the main body.

Abstract: A photographing device includes a main body, a first video capturing unit, a second video capturing unit and a rotatable electrical connection portion. The first video capturing unit is disposed on the main body, a center of a first video capturing range of the first video capturing unit is located on a first axis. The second video capturing unit is rotatable about the first axis to be pivoted on the main body, the second video capturing unit and the first axis are separated by a distance. A second video capturing range of the second video capturing unit overlaps the first axis. The rotatable electrical connection portion includes a first and a second connection component pivoted and connected to each other. The second video capturing unit is disposed on and connected to the first connection component. The second connection component is disposed on and connected to the main body.

Abstract: A video conversion device includes a video signal input port, an audio signal input port, a signal processing module and a signal output module. The video signal input port and a video capture device is connected via a connecting assembly having a plug and a socket for receiving an external analog video signal from the video capture device. The audio signal input port receives an analog audio signal. The signal processing module connects to the video signal input port and the audio signal input port to receive the analog video signal and the analog audio signal. The signal processing module respectively converts the external analog video signal and the analog audio signal to a digital video signal and a digital audio signal. The signal output module connects to the signal processing module to output the digital video signal and the digital audio signal.

Abstract: A photographic device includes a casing, a photographic body, an auxiliary light source and an adjusting assembly. The casing includes an opening. The photographic body, disposed in the casing, and the photographic body, corresponds to the opening. The photographic body is adapted for image capturing. The auxiliary light source, disposed between the casing and the photographic body, is adapted for emitting light outside through the opening. The adjusting assembly, disposed in the casing, is connected to the auxiliary light source. The adjusting assembly is adapted for driving the auxiliary light source to move relative to the opening.

Abstract: An audiovisual capture device, with its special structural design, can be installed on a lamp socket or a power socket, and is assembled or formed with an electric assembly part at one end of the audiovisual capture device, allowing the audiovisual capture device to be assembled at the lamp socket or the power socket by using this electric assembly part, so as to achieve functions of fixing and of conducting electric current, at a same time. In addition, electronic signals can be transmitted by using the lamp socket or the power socket, simultaneously.

Abstract: A method for motion estimation in video coding. The row containing a motion vector predictor is determined as a P-th row and the rows adjacent to the P-th row are the (P+1)-th row and the (P?1)-th row.

Abstract: A method for motion estimation for use in video coding. In a predetermined search region, three starting rows are chosen, wherein a given prediction point is on the middle row, the N-th row. The method includes the following steps. (a) All points of the (N−2)-th, N-th, and (N+2)-th rows are chosen as checking points. (b) Block match errors for the checking points are calculated and a checking point which corresponds to a minimum block match error is defined as a candidate checking point. (c) A determination is made whether the candidate checking point is on the N-th row; if so, the method proceeds to step (g); otherwise, it proceeds to step (d). (d) It is determined that whether the candidate checking point is on the (N+2)-th row; if so, the method proceeds to step (e); otherwise, it proceeds to step (f). (e) N is incremented by two, all points of the (N+2)-th row are chosen as checking points, and step (b) is repeated.

Abstract: A method for motion estimation in video coding. The row containing a motion vector predictor is determined as a P-th row and the rows adjacent to the P-th row are the (P+1)-th row and the (P−1)-th row.

Abstract: A method for motion estimation for use in video coding. In a predetermined search region, three starting rows are chosen, wherein a given prediction point is on the middle row, the N-th row. The method includes the following steps. (a) All points of the (N−2)-th, N-th, and (N+2)-th rows are chosen as checking points. (b) Block match errors for the checking points are calculated and a checking point which corresponds to a minimum block match error is defined as a candidate checking point. (c) A determination is made whether the candidate checking point is on the N-th row; if so, the method proceeds to step (g); otherwise, it proceeds to step (d). (d) It is determined that whether the candidate checking point is on the (N+2)-th row; if so, the method proceeds to step (e); otherwise, it proceeds to step (f). (e) N is incremented by two, all points of the (N+2)-th row are chosen as checking points, and step (b) is repeated.

Abstract: A CMOS active pixel sensor with motion detection includes a photo diode, a reset switch, two sample and hold circuits, and two readout circuits. Each sample and hold circuit includes a MOS switch and a capacitor. The readout circuit includes a source follower and a row select switch. The two sample and hold circuits can store current frame pixel data as well as previous frame pixel data, and these two image data can be read out by the two readout circuits. Therefore, the frame difference can be directly obtained in differential mode. This CMOS active pixel sensor can be used in single chip camera systems with motion detection and video compression functions. Furthermore, because of the low supply voltage consideration in the pixel circuit, this CMOS active pixel sensor is suitable for low power applications.