# US 2014/0192170 A1 · Model-Based Stereoscopic and Multiview Cross-Talk Reduction > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0192170 A1 - Document ID: US20140192170A1 - Status: Published application - Kind: A1 - Application number: 14/237,439 - Filed: 2011-08-25 - Published: 2014-07-10 - Earliest claimed: 2011-08-25 - Inventors: Ramin Samadani; Nelson Liang An Chang - Web page: https://patentgrep.com/patent/US20140192170A1 ## CPC - H04N 13/111: Transformation of image signals corresponding to virtual viewpoints, e.g. spatial image interpolation - H04N 13/30: Image reproducers (optical systems for producing stereoscopic or other three-dimensional [3D] effects G02B30/00) - H04N 13/302: for viewing without the aid of special glasses, i.e. using autostereoscopic displays - H04N 13/327: Calibration thereof - H04N 13/349: Multi-view displays for displaying three or more geometrical viewpoints without viewer tracking (for viewing without the aid of special glasses using fly-eye lenses H04N13/307) - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION ## Abstract A method for reducing cross-talk in a 3D display is disclosed. The cross-talk in the 3D display is characterized with a plurality of test signals to generate a forward transformation model. Input image signals are applied to the forward transformation model to generate modeled signals. The modeled signals are applied to a visual model to generate a visual measure. The input signals are modified based on the visual measure. ## Claims ### Claim 1 A method for reducing cross-talk in a 3D display, the method comprising: characterizing the cross-talk in the 3D display with at plurality of test signals to generate a forward transformation model; applying input image signals to the forward transformation model to generate modeled signals; applying the modeled signals to a visual model to compute a visual measure; and modifying the input image signals based on the visual measure. ### Claim 2 (depends on 1) The method of claim 1, wherein characterizing the cross-talk in the 3D display comprises inputting the plurality of test signals into the 3D display and measuring a set of output signals. ### Claim 3 (depends on 2) The method of claim 2, further comprising using the set of output signals to generate the forward transformation model. ### Claim 4 (depends on 1) The method of claim 1, wherein the plurality of test signals comprise signals from the group consisting of a color patch test signal, a checkerboard test signal, a white test signal, a black test signal, a horizontal lined test signal, and a vertical lined test signal. ### Claim 5 (depends on 1) The method of claim 1, wherein the forward transformation model comprises a set of transformations from the group consisting of a space-varying offset and gain transformation, a color correction transformation, a geometric correction transformation, and a space varying blur transformation. ### Claim 6 (depends on 1) The method of claim 1, wherein the modeled signals comprise a set of cross-talk modeled signals and a set of desired signals. ### Claim 7 (depends on 1) The method of claim 1, wherein the visual measure comprises a visual differences measure between the cross-talk modeled signals and the desired signals. ### Claim 8 (depends on 1) The method of claim 1, wherein modifying the input image signals based on the visual measure comprises generating visually modified input signals. ### Claim 9 (depends on 8) The method of claim 8, wherein generating visually modified input signals comprises varying visual characteristics of the input image signals to generate the visually modified input signals as canonical transformations of the input image signals. ### Claim 10 (depends on 8) The method of claim 8, further comprising minimizing the visual measure. ### Claim 11 (depends on 10) The method of claim 10, wherein minimizing the visual measure comprises applying the visually modified input signals to the forward transformation model to generate a new set of modeled signals and applying the new set of modeled signals to the visual model to update the visual measure until it is minimized. ### Claim 12 A 3D display system, comprising a 3D display screen; and a cross-talk reduction module to reduce cross-talk introduced by the 3D display screen, the cross-talk reduction module comprising: a forward transformation model to model the cross-talk introduced by the multiview display screen and generate modeled signals from input image signals; a visual model to compute a visual measure; and a cross-talk correction module to modify the input image signals based on the visual measure. ### Claim 13 (depends on 12) The 3D display system of claim 12, wherein the forward transformation model comprises a set of transformations from the group consisting of a space-varying offset and gain transformation, a color correction transformation, a geometric correction transformation, and a space varying blur transformation. ### Claim 14 (depends on 13) The 3D display system of claim 13, wherein the modeled signals comprise a set of cross-talk modeled signals and a set of desired signals. ### Claim 15 (depends on 12) The 3D display system of claim 12, wherein the visual measure comprises a visual differences measure between the cross-talk modeled signals and the desired signals. ### Claim 16 (depends on 12) The 3D display system of claim 12, wherein the cross-talk correction module generates visually modified input signals. ### Claim 17 (depends on 16) The 3D display system of claim 16, wherein the cross-talk correction module generates the visually modified input signals as canonical transformations of the input image signals by varying visual characteristics of the input image signals. ### Claim 18 (depends on 17) The 3D display system of claim 17, wherein the visually modified input signals are applied to the forward transformation model to generate a new set of modeled signals and the new set of modeled signals are applied to the visual model to update the visual measure until it is minimized. ### Claim 19 A cross-talk reduction module for use with a 3D display, the cross-talk reduction module comprising: a forward transformation model to model cross-talk introduced by the 3D display and generate modeled signals from input image signals; a visual model to compute a visual measure; and a cross-talk correction module to modify the input image signals based on the visual measure. ### Claim 20 (depends on 19) The cross-talk reduction module of claim 19, wherein the visual measure is minimized until the cross-talk introduced by the 3D display is visually reduced to a viewer.