US 2022/0103770 A1 · IMAGE SENSING DEVICE AND IMAGE SENSING METHOD

Abstract

An image sensing device and an image sensing method are provided. The image sensing device is adapted to sense a target object in a situation without ambient light. The image sensing device includes a modulated light source, an image sensor, and a processing circuit. The modulated light source includes light sources. The image sensor includes sensing pixels. The image sensor is a color filter-free sensor. In one frame period, the light sources emit sensing light beams at different timings, and the sensing pixels at different timings sense reflected light beams generated by the sensing light beams reflected by the target object. The processing circuit synthesizes first images corresponding to a part of the reflected light beams to generate a complete sensing image. The processing circuit obtains depth information of the target object according to another part of the reflected light beams.

Claims20

Dependent claims

An image sensing device adapted to sense a target object in a situation without ambient light, the image sensing device comprising:

a modulated light source, comprising a plurality of light sources;
an image sensor, comprising a plurality of sensing pixels, wherein the image sensor is a color filter-free sensor;
and
a processing circuit, coupled to the modulated light source and the image sensor and configured to run the modulated light source and the image sensor,
wherein in one frame period, the light sources emit a plurality of sensing light beams at different timings, and the sensing pixels at different timings sense a plurality of reflected light beams generated by the sensing light beams reflected by the target object,
wherein the processing circuit synthesizes a plurality of first images corresponding to a part of the reflected light beams to generate a complete sensing image, and the processing circuit obtains depth information of the target object according to another part of the reflected light beams.

3 more elements

An image sensing method adapted to an image sensing device running in a situation without ambient light to sense a target object, the image sensing device comprising a modulated light source and an image sensor, the image sensing method comprising:

in one frame period, emitting a plurality of sensing light beams by a plurality of light sources of the modulated light source at different timings;
in the frame period, sensing a plurality of reflected light beams by a plurality of sensing pixels of the image sensor at different timings, wherein the reflected light beams are generated by the sensing light beams reflected by the target object;
and
synthesizing a plurality of first images corresponding to a part of the reflected light beams to generate a complete sensing image, and obtaining depth information of the target object according to another part of the reflected light beams.

1 more element

Dependencies are inferred from the claim text.

Image sensing device and image sensing method

Life of this patent

Image sensing device and image sensing method

Life of this patent

Abstract

Claims20