vision_rs/models/yolo/yolo26/blocks/
upsample.rs

1/*
2 * Copyright 2026 Teenygrad
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *     http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17
18use teeny_core::graph::{Op, SymTensor};
19
20/// Nearest-neighbour 2-D upsample.
21///
22/// Output shape: `[B, C, H*scale_h, W*scale_w]`.
23pub fn upsample(scale_h: usize, scale_w: usize) -> impl Fn(SymTensor) -> SymTensor {
24    move |x| {
25        let op = Op::UpsampleNearest2d { scale_h, scale_w };
26        let shape = vec![
27            x.shape[0],
28            x.shape[1],
29            x.shape[2].map(|h| h * scale_h),
30            x.shape[3].map(|w| w * scale_w),
31        ];
32        let node_id = x.graph.borrow_mut().add_node(op, vec![x.node_id], x.dtype, shape.clone());
33        SymTensor { node_id, graph: x.graph.clone(), dtype: x.dtype, shape }
34    }
35}
vision_rs/models/yolo/yolo26/blocks/upsample.rs

vision_rs/models/yolo/yolo26/blocks/
upsample.rs
