Abstract: An apparatus for controlling a stereo video display with non-stereo video source includes a memory, a read/write controller and a motion analyzer. The memory stores a current frame, a previous frame of the current frame, and a next frame for the current frame that is in preparation. The current frame and the previous frame are for a dextral image and a sinistral image of a stereoscopic image respectively. The read/write controller controls the addresses to write the current frame and the next frame into the memory, and the reading order of the current frame and the previous frame.

Abstract: The present invention provides a display control system, which comprises a display for showing a whole frame composed by a plurality of divided frames and a control apparatus controls said plurality of divided frames to said display. In this regards, the control apparatus further comprises a frame buffer composed by a plurality of units, a control module for comprising a draw pointer for pointing to one of said plurality of units to be drawn and a refresh pointer for pointing to one of said plurality of units to be refreshed to said display, a refresh module for refreshing the divided frame stored in said unit, pointed by said refresh pointer, to said display, and a draw module for drawing divided frame into said unit, pointed by said draw pointer.

Abstract: The invention provides a method and an apparatus for dithering, and inversely dithering an image. The apparatus makes use of a pixel address and a pixel data to locate a dither reference value from a dither matrix and use the dither reference value to convert an original pixel data having N bits into a dithered pixel data having M bits (N>M). On the other hand, the apparatus for performing an inversely dithering process makes use of the pixel address and the dithered pixel data (M bits) to locate a dither reference value from a dither matrix. Then, the dither reference value is employed to perform an inversely dithering process to recover the dithered pixel data into original pixel data.

Abstract: An apparatus for generating an interleaved stereo image includes a 3D graphics engine, an interleaved data merger and a register. The 3D graphics engine generates a shrunken left-eye image and a shrunken right-eye image of a stereo image based on video source data, the vertical sizes of the shrunken left-eye image and the shrunken right-eye image are shrunk compared with the vertical size of the video source data. The interleaved data merger stores the shrunken left-eye image and the shrunken right-eye image into two consecutive memory segments, and scans the memory segments while displaying the stereo image. A register controls a line number of a display region, so that the rows of the left-eye image shrunk and the right-eye image shrunk arrive at the display region in line-interleaved order. The invention also discloses a method for generating an interleaved stereo image.

Abstract: A method for removing noise regions in a stereo 3D image, which includes a first eye image and a second eye image is achieved by calculating a maximum offset value and turning a horizontal synchronization signal and a display enable signal of the CRT timing parameters.

Abstract: An apparatus is provided to produce a real-time anaglyph, comprising a graphics engine, a memory and an anaglyph generator. The graphics engine provides a sync signal and generates a left eye image and a right eye image in accordance with a horizontal offset calculated from a 3D graphic animation, wherein the horizontal offset between the left and the right eye images creates illusion of depth. The left eye image and the right eye image are temporarily stored in the memory. The anaglyph generator then fetches the left eye image and the right eye image from the memory in response to the sync signal, for producing a filtered left image and a filtered right image. As such, each filtered image is respectively tinted with one of the complementary colors. By viewing through a pair of anaglyph glasses, the filtered left and the filtered right images can thus create perception of depth.

Abstract: A 3D-graphics processing method for processing 3D objects in a computer system defines a visible region having a far plane and a near plane. A clipping process is performed for a first object lying across the near plane while a second object lying across the far plane is exempted from the clipping process. In stead, the second object is performed with a rendering process as a whole to obtain a plurality of pixels. The depth values of the pixels are then compared with a depth value of the far plane. For any of the pixels having a depth value greater than the depth value of the far plane, it is discarded from display. On the other hand, any of the pixels of the first object not blocked by other pixels in front thereof and having a depth value smaller than the depth value of the far plane is outputted for display.

Abstract: The invention provides a method of improving silhouette appearance in bump mapping, which not only reduces the operation overhead of applying displacement mapping to a whole model but also retains the truly geometric shape in displaying the object silhouette. The invention comprises the following steps: receiving, checking vertex, checking subdivision, subdividing, repeating, displacing and bump mapping. The invention also discloses a system employing the method of improving silhouette appearance in bump mapping.

Abstract: An apparatus for generating an interleaved stereo image includes a 3D graphics engine, an interleaved data merger and a register. The 3D graphics engine generates a shrunken left-eye image and a shrunken right-eye image of a stereo image based on video source data, the vertical sizes of the shrunken left-eye image and the shrunken right-eye image are shrunk compared with the vertical size of the video source data. The interleaved data merger stores the shrunken left-eye image and the shrunken right-eye image into two consecutive memory segments, and scans the memory segments while displaying the stereo image. A register controls a line number of a display region, so that the rows of the left-eye image shrunk and the right-eye image shrunk arrive at the display region in line-interleaved order. The invention also discloses a method for generating an interleaved stereo image.

Abstract: A system for full-scene anti-aliasing and stereo three-dimensional display control. The system includes a receiving buffer, a geometry offset generator, a rendering engine, and a blending engine. The receiving buffer receives a geometry, and the geometry offset generator receives stereo parameters and FSAA parameters, calculates first and second stereo offsets according to the stereo parameters, and calculates first and second FSAA offsets according to the FSAA parameters. The rendering engine combines the first and second stereo offsets with the first FSAA offset respectively to obtain first and second new offsets, combines the first and second stereo offsets with the second FSAA offset respectively to obtain third and fourth new offsets, and re-renders the geometry according to the first, second, third, and fourth new offsets respectively, so as to obtain first, second, third, and fourth new geometry.

Abstract: The invention provides a method of improving silhouette appearance in bump mapping, which not only reduces the operation overhead of applying displacement mapping to a whole model but also retains the truly geometric shape in displaying the object silhouette. The invention comprises the following steps: receiving, checking vertex, checking subdivision, subdividing, repeating, displacing and bump mapping. The invention also discloses a system employing the method of improving silhouette appearance in bump mapping.

Abstract: An apparatus for controlling a stereo video display with non-stereo video source includes a memory, a read/write controller and a motion analyzer. The memory stores a current frame, a previous frame of the current frame, and a next frame for the current frame that is in preparation. The current frame and the previous frame are for a dextral image and a sinistral image of a stereoscopic image respectively. The read/write controller controls the addresses to write the current frame and the next frame into the memory, and the reading order of the current frame and the previous frame.

Abstract: An method for controlling various mode of OSD functions is provided in a display system. The method uses a display buffer with plural register for storing frame data, which corresponding to a frame. A memory is used for storing OSD data, corresponding to an OSD window included in the frame. The micro-controller copies the OSD data in the register which corresponds to the OSD window by an data processing method.

Abstract: An apparatus for controlling a display, which includes an on-screen buffer, two overlay buffers and a stereo window controller. The on-screen buffer stores screen image data that includes image data of an overlay region. The two overlay buffers are of a double-buffered architecture, and one overlay buffer stores the left image data and the right image data of a current frame, and another overlay buffer stores the left image data and the right image data of a next frame. The stereo window controller controls swap operations and overlay operations, wherein the swap operations determine which one of the two overlay buffers stores the left image data and the right image data of the current frame, and the overlay operations alternatively output the left image data and the right image data of the current frame while the overlay region is being scanned.

Abstract: An apparatus for controlling a stereo 3D display includes an on-screen buffer, two off-screen buffers and a stereo window controller. The on-screen buffer stores screen image data including window image data. The two off-screen buffers are of a double-buffer architecture, wherein one off-screen buffer stores the left image data and the right image data of a current frame, and another off-screen buffer stores the left image data and the right image data of the next frame of the current frame. The stereo window controller controls swap operations and BITBLT (Bit Block Transfer) operations. The swap operations determine which one of the two off-screen buffers stores the left image data and the right image data of the current frame. The BITBLT operations alternatively transfer the left image data and the right image data of the current frame to the on-screen buffer as the window image data.

Abstract: A system for full-scene anti-aliasing and stereo three-dimensional display control. The system includes a receiving buffer, a geometry offset generator, a rendering engine, and a blending engine. The receiving buffer receives a geometry, and the geometry offset generator receives stereo parameters and FSAA parameters, calculates first and second stereo offsets according to the stereo parameters, and calculates first and second FSAA offsets according to the FSAA parameters. The rendering engine combines the first and second stereo offsets with the first FSAA offset respectively to obtain first and second new offsets, combines the first and second stereo offsets with the second FSAA offset respectively to obtain third and fourth new offsets, and re-renders the geometry according to the first, second, third, and fourth new offsets respectively, so as to obtain first, second, third, and fourth new geometry.

Abstract: An apparatus is provided to produce a real-time anaglyph, comprising a graphics engine, a memory and an anaglyph generator. The graphics engine provides a sync signal and generates a left eye image and a right eye image in accordance with a horizontal offset calculated from a 3D graphic animation, wherein the horizontal offset between the left and the right eye images creates illusion of depth. The left eye image and the right eye image are temporarily stored in the memory. The anaglyph generator then fetches the left eye image and the right eye image from the memory in response to the sync signal, for producing a filtered left image and a filtered right image. As such, each filtered image is respectively tinted with one of the complementary colors. By viewing through a pair of anaglyph glasses, the filtered left and the filtered right images can thus create perception of depth.

Abstract: A method for removing noise regions in a stereo 3D image, which includes a first eye image and a second eye image is achieved by calculating a maximum offset value and turning a horizontal synchronization signal and a display enable signal of the CRT timing parameters.

Abstract: A core logic circuit for use with a CPU and a main graphics accelerator in a computer system is provided. The core logic chip includes a host controller electrically connected to the CPU for receiving a command from the CPU; an auxiliary graphing engine electrically connected to the host controller fore receiving and processing the command; and a transmission controller electrically connected to the auxiliary graphing engine for transmitting the command processed and outputted by the auxiliary graphing engine to the main graphics accelerator to be further processed.

Abstract: The present invention discloses an apparatus and method for adjusting 3D transformation applied in a 3D computer graphic processing system, using a simple and practical computing method to simulate visual effect of human's eyes to separate input video into a left video and a right video. By the focus effect of the left video and the right video, a user can feel effect of changing depth of the input video, and creating 3D effect. Additionally, the present invention provides many parameters for convenience in adjusting the video depth and location in a display plane by users.