Methods and apparatuses of lens flare rendering using linear paraxial approximation, and methods and apparatuses of lens flare rendering based on blending

摘要

A lens flare generation method and apparatus simulates lens flare effects through paraxial approximation-based linear approximation to generate a lens flare utilizing physical characteristics of a lens system while generating a lens flare at high speed. A non-linear effect may be added to a linear pattern-based lens flare effect to generate an actual lens flare reflecting most of physical characteristics generated from the lens system. A pre-recorded non-linear pattern may be used.

主权项

1. A method of generating information on a projected position, executed by a processor, the method comprising:
generating light path changing information on at least one lens using information on the at least one lens included in a lens system; generating projected position information to generate a projected position on a sensor corresponding to a light ray incident position of the lens system using the light path changing information; and generating a lens flare using the projected position on the sensor, wherein the light path changing information is a virtual light path conversion equation or matrix multiplication for the at least one lens, and wherein the virtual light path conversion equation or the matrix multiplication performs at least first order approximation on a light path with respect to a light axis of the at least one lens.